WHOOP Podcast - Introducing WHOOP 4.0 and WHOOP Body Featuring Any-Wear Technology

Episode Date: September 8, 2021

WHOOP 4.0 is here. Will Ahmed and WHOOP Co-Founder and Chief Technology Officer John Capodilupo talk about everything you need to know about WHOOP 4.0, how it was made, and how it will help improve your performance. They dive deep on all the new features with the 4.0, including WHOOP Body featuring Any-Wear Technology, SpO2 and skin temperature measuring, the new Health Monitor, and the updated Sleep Coach with haptic alerts. Will and John discuss the new era of WHOOP (0:26), WHOOP Body (2:54), Sp02 (6:21), skin temperature (8:52), Health Monitor (10:46), the new Smart Alarm (13:02), making WHOOP 33 percent smaller (15:57), waterproofing the battery pack (20:45), improving signal quality (25:55), and when to expect your 4.0 (31:19).Support the showFollow WHOOP: www.whoop.com Trial WHOOP for Free Instagram TikTok YouTube X Facebook LinkedIn Follow Will Ahmed: Instagram X LinkedIn Follow Kristen Holmes: Instagram LinkedIn Follow Emily Capodilupo: LinkedIn

What's up, folks? Welcome back to the WOOP podcast, where we sit down with top athletes, researchers, scientists, and more to learn what the best in the world are doing to perform at their peak. And what you can do to unlock your own best performance. I'm your host, Will Amit, founder and CEO of Woop, where we are on a mission to unlock human performance. This is truly an exciting day in the history of Woop. If you missed Whoop Unlock 2021, we announced our biggest, most ambitious technology release in Whoop history, Whoop 4.0, and all the technology and software and apparel to go with it. This is a very special episode because I'm joined by John Capital Lupo, our chief technology officer,

my co-founder, and we go deep on all things Whoop4.0 technology. John has been with me and with the company for nine years now. We've been through a lot. And so we talk about a lot of the challenges associated with building this technology, a lot of the things we've overcome and why we're proud of this technology, some of the new features that you can expect, how you can use them. We go deep on WOOP Body, which is, I think, the most revolutionary product offering in the WOOP 4.0 Suite from just the difficulty that it took to make WOOP 4.5.

is something you can wear anywhere on your body. We talk about the Whoop Sleep Coach. We talk about the Whoop Health Monitor. I hope you enjoy it. If you're new to the Whoop platform and want to get your hands on the Whoop 4.0, it's available now to reserve. So you can head to Whoop.com.

Reserve yours today. Start shipping September 27th. And you can actually use the code Will Alamed still to get 15% off a Whoop membership. If you're a Whoop member, existing Woop member, you're first in line. Just go into the Woop app

and sign up. for your whoop 4.0. Reserve yours now, and you'll be getting it very soon. All right, without further ado, here is Capo. All right, Capo, we're here, we're talking about Woop 4.0. It's been close to 10 years for us in the making. Yeah. I think I can honestly say Woop 4.0 is by far the best technology

we've ever created at Woop. You, of course, being our longtime chief technology officer, deserve all the credit in the world for that. Thank you. And so let's start by just talking about the fact that we've gone from one location in the wrist to being the first wearable product that can be worn on your bicep, your waist, your ankle, and even in a woman's bra. This is, I mean, this is pretty amazing. It's one of the things I'm most excited about it.

WOOP body featuring anywhere technology. Yeah, Woop body featuring anywhere technology is truly a revolution for the wearable industry. And I think goes back to something you've always said that wearable technology should be cool or disappear. And with WOOP, you can dress it up, or now with the Gen 4, you can truly make it disappear by embedding it into some of our smart garments.

And this development process was not easy. It was a very hard technical problem. And something that I'm sure people may be familiar with is that the whoop strap uses light to detect your heart rate. And the issue is when you start moving, a lot of different things happen. And those things introduce noise into the signal that make it hard to get the heart rate out. And that noise can come from blood movement, your tendons moving, but the major source is actually what we call the motion artifact, which is the movement of the sensor relative

to your skin. And what we found actually in Gen 3 and earlier in some of the research we've been developing for a long time is that sometimes by putting on your bicep, you can get even better accuracy depending on the activities you're doing. And so we took that idea and started looking at what other locations around the body could you put a whoop sensor. And we've mapped out 10 to 20 different locations and done similar data collections. So not only when we're developing Gen 4 did we have, you know, people hooked up with eight

whoop straps, they're also wearing two or three pieces of whoop prototype smart garments with whoop straps in there and we're collecting the raw data from there to understand how does the signal look when it's worn on in a bra strap or in boxers versus on the wrist. And then using that information, we were able to narrow down the locations, also working with the soft goods team, which is really interesting having engineers working with apparel designers. I think that's probably the first in the industry. And it was really awesome to see both parties coming to the table with ideas for how to improve

the sensors performance. and how we can change both the garments and then also the algorithm and the sensor itself to get equal performance in different locations as you can on the wrist. It's amazing. And I think one of the things we're both really proud of at Woop is that we have these small teams

that are deeply technical in their own discipline, right? Like you just talked about the soft goods team. They're literally figuring out what is the perfect apparel, technical garments. It's, I mean, even weave and material to be able to create a performance, a high-performance garment. And then you're matching that with, you know, signal processing engineers who are looking at raw data to figure out how the signal is coming back. And it's just, it's a really unique collaboration that I don't think happen at maybe any other company.

So it's amazing. And this now, just to be clear for WOOP members listening, it's going to allow them to wear the WOOP 4.0 throughout their body. They take the sensor just out of its super knit, and they can insert the sensor throughout their body. And this is going to be in leggings, bras, boxers, shorts, and, frankly, more apparel to come. So the Anywhere technology is something we're really proud of.

It's a foundation of future tech. Okay, let's talk about some of the additional sensing we've added to 4.0. We've got two important additions, SBO2 and skin temperature. Talk about SBO2 and why that's important. So SBO2, also known as blood oxygen, is very important because it gives you an idea of how much oxygen your blood is carrying. Normally humans will be, you know, 95 to 100% oxygenated. But an interesting thing for athletes will be training at altitude, high altitude, will decrease your blood oxygen levels, and you can tell when you acclimate to those altitudes

by monitoring your block oxygen rising. Also, there's tremendous health monitoring implications for it. With things like the COVID pandemic, we saw a lot of people buying pulse oxymeters because we know COVID wreaked havoc on your blood oxygen levels. And the way we measure it is actually a very similar technique to how we get heart rate in the gen 4. It uses light shining through the skin

in a technique called photoplasmography or PPG, and this is similar to how Woop has over. monitored heart rate. But instead of looking at the frequency of the signal that we get back, that's your heart rate, we instead look at how much light gets absorbed. And the key thing to know is there's this thing called hemoglobin, red blood cell, that carries oxygen in your blood. That's how oxygen gets around in your blood. And oxygen binds the hemoglobin. And it turns out that oxygenated hemoglobin and deoxygenated hemoglobin absorb red and infrared light differently. And so with pulse oxymetry instead of using the green LEDs, we use the new red and infrared LEDs

to shine those light, record how much gets reflected back, and the differential in how much gets absorbed is essentially how oxygenated the blood is. It's fascinating, and if you think about it, just the fact that you walk into a doctor's office for an annual checkup, the first thing they do is stick a pulse eximeter on your finger to get your pulse ox and to get your resting heart rate. And now WOOP is effectively going to be able to measure those things 24-7. And I just think it's one of the most fascinating things that we're doing. It also has huge implications for COVID-19, because we've seen COVID-19 can dramatically affect your pulse oxymetry.

So this is a statistic we're really proud to now have in the WOOP app. Let's talk about skin temperature. Yeah, skin temperature is exactly what it sounds like. It's the temperature of the surface of your skin. And I think an important differentiation for our members to know is it's not core body temperature. and actually any wearable that you wear on the wrist or distal appendage, it's not going to be measuring core body. Core body temperature is what you measure with the thermometer in your mouth

or when you go to the doctor's office, and that number you may be familiar with is like 98.6 degrees Fahrenheit. So skin temperature is going to be different. Your skin's not necessarily at 98.6 degrees. But what we do is literally have basically a thermometer on the whoop strap that's measuring the surface of your skin and how warm it is. And the interesting thing is with the fluctuations you see,

especially while you're sleeping or at night can be really important to monitor wellness or illness status, things like that. But I think what we're also really excited about is furthering our research and understanding of female physiology. Something we've done and we've done a lot of press around it and that we're proud of in research is understanding how female physiology alters how you respond to exercise. And this isn't really well studied. And with skin temperature, now we'll be able to better the menstrual cycle and things like that and offer a host of new features to our members so that they can better understand how they should optimize their training workouts and sleep regimens. Okay, so to recap, the WOOP 4.0 now measures heart rate, heart rate variability, skin

temperature, skin conductance, respiratory rate, pulse axiometry, and movement. Yep. That's a big suite of measurements. And what it all ties to, which is one of my favorite features with 4.0 is the health monitor. The health monitor is a new dashboard that's going to be an alerting system on the overview of the WOOP app, and it's going to tell you if any of these important physiological metrics are deviating from their specific range. You know, when we saw what happened with Nick Watney on the PGA tour using WOOP and an elevated respiratory rate to effectively predict he had COVID-19 and how he was able to use.

use that deviation in his respiratory rate to really stop him from exposing to others. And then also, you know, the tens of thousands of people that have used the COVID-19 tracking in the WUP app, we said to ourselves, okay, we need to have a way to alert people in the WUPAP that something's awry. And so now the health monitor within the WUPAP is going to tell you if you're resting heart rates out of whack, your heart rate very big. abilities out of whack, your respiratory rate, very importantly. SBO2, so SBO2 you want to be above 94%. It'll alert you for that.

And then skin temperature, it'll also keep an eye on skin temperature. Talk a little more about this feature. I mean, obviously, I'm stoked about it. Yeah, I'm really excited for this feature. And I think it builds on this idea and this theme that we found, and frankly, quite surprising that 2021, almost 22 now, I probably said this a lot, maybe even on the podcast before. But all of these stats, you probably get a readout once a year when you go for your physical. But now we're giving it to you every single day.

And so instead of just seeing if you're above or below an absolute threshold based on a wide demographic survey, you can really understand what's normal for your body and get alerted when you're not in that normal range anymore. And then you can learn over time what to do to stay in that normal range or maybe sometimes even take action on it. And I think, you know, the SPO2 reading below 94%. Sometimes you'll get alerted, but you'll be at high altitude. And so it'll make sense. But it's just another thing to remind you that, hey, your body's out of whack. It's not in its normal state right now.

So you should do things a little bit differently. And it goes back to, you know, our vision from day one, which is that it needs to be continuous, continuous health monitoring. It's very hard to know once a year, whether or not a statistic is out of whack. But if you're looking at these numbers 24-7 and in particular seeing your baselines, it's very easy to see if you've got a big deviation. So I think this health monitor feature is the beginning of a very exciting frontier for Whoop, and I'm excited to see how Whoop members use it. Now, let's go back to the technology. Within the Whoop 4.0 is also a haptic motor. Talk about

that technology. Definitely, yeah. So a haptic motor, you can also call it a vibration motor. It's literally a spinning mass that's inside the whoop strap that will cause the whoop to vibrate. And our first implementation of this is around the smart alarm. And this will give people the ability to programmatically set a sleep goal. And using the sleep coach, we revamp that and allow users to get more fine-tuned over how they should sleep to reach their goals. And then the whoop strap will silently start vibrating at the appropriate time and wake you up. Yeah, it's really cool. I mean, the new sleep coach is effectively going to have three modes.

You can wake up at an exact time. you can wake up based on your sleep goal. So say you want to get 100% of your sleep or 85% of your sleep, whoop will wake up, will vibrate to wake you up when you've hit that goal. Or the third mode, which I think people are really going to love,

is the in the green mode. You can have whoop just vibrate once you're in the green. And so it's going to be cool to see how people use this. You can also say, you know, I want to wake up in the green, but don't wake me up later than 8 a.m.

Or pick a time because, you know, you've got to get up at some, point. So it's a very cool feature. And to my knowledge, again, Woop is the first company to be able to have these different modes to wake you up. The haptic motor process, just to go back to that, people, I don't think, realized this. I didn't until we were deep into the engineering phase. It's a really large sensor. It's hard to fit in a small form factor. And you folks at home can imagine this, we had dozens of different haptic motors all set up to weird, you know, engineering boards just to test the vibration and see, okay, this is smaller, but is it going

to have a strong enough vibration? I think ultimately we picked one of the larger ones, but one that's definitely going to be able to wake you up. Talk a little about that. Yeah, and it's kind of a more difficult problem because wearing the whoop 4.0 on your wrist, the wrist is actually not, is one of the least sensitive parts of your skin. And so you need a really strong vibration motor to be able to wake you up. And we wanted to make sure, obviously, if you're using this as an alarm, it had to wake you up. The downside of very powerful motors are it takes a lot of energy. And with the Woop 4.0, battery life is super important.

And so we did have different types of vibration motors. There's a lot of different ones out there. Some were large, some were small. And really, through a process of trial and error and also understanding the energy consumption, and found one that we felt would wake everyone up and also meet our constraints for the 4.0. Now, you mentioned the size challenges. I don't think people fully realize

the trade-offs that are associated with size, the number of features that you have, accuracy, and battery life. Each of those is sort of pulling from one another. You could have a really long battery life, but an enormous product. You could have a product, like, say, an Apple Watch that has a million features,

but lacks accuracy when it comes to health monitoring. We've made it pretty clear that our role at WOOP is to have phenomenal health monitoring. It's why we don't have a high-resolution screen. It's why you can't call an Uber with your Woop strap, right? The WOOP 4.0, though, one of the breakthroughs here is, despite all this new technology, it is 33% smaller than the Woop 3.0. Talk about that breakthrough. Yeah, it's quite amazing, actually.

Really a big shout out to the hardware engineering. teams that have been working so hard on this for the last two years. And by the way, I would say more than two years, because this is like, this is probably been the thing that you and I have fought the most about. True. It's like, how can we get as small as possible? How can we get as small as possible? And you telling me, look, we need battery life.

We need to be able to fit all the sensing in the circuit boards. But it's been, I would say, nine years of development. Yeah, yeah, yeah, definitely. And I think, you know, just looking back at all the new sensors we added, all the new sensing modes we added, a vibration motor, all of these things, and we made it 33% smaller, really took some really innovative engineering, not only on getting energy consumption down, but also it's kind of like Tetris inside. How do you fit the circuit board around the components and all these different things?

And it was a grueling, challenging process, a lot of iterations, a lot of ups and downs, but the team really pulled together and we realized the utility in making it smaller fit a lot more people's wrists and it allows for WOOP body to be worn so it's even more seamless when you put it in there. And so it was a big goal for us and we managed to hit it and so proud of the team for doing that. Just to like really underscore that point, whenever we had industrial design meetings talking about WOOP 4.0 and there was a lot of them, we were talking about things down to the 10th and 100th of a millimeter. And if it was changing something by a 10th of a millimeter, that was a big deal, which goes to show you just how small everything

is that we're operating with. Like it really, when you're talking about products that are this small that have 200 components inside of it, I mean, the whoop 4.0 is 200 components inside. There's just so much work that's going into really figuring out, to your point, the Tetris equation of how you get everything in there. What were a few of the things, I know there was really a million things, but what are are a few of the key things that have allowed us to get 33% smaller while still having a five-day battery life, which is also huge.

Yeah, I think it really boils down to two main things that it comes down to. One, looking at our energy efficiency at rest. And so the firmware team and the hardware teams selected really power-efficient components, even the tiniest things, and that was a big part of the criteria for fitting it in. And obviously, a trade-off with size and things like that. And then also having the strap be asleep a lot more. So although it's always on, it's actually the processor goes to sleep in between when it's not cranking. And so the algorithms and everything has to run so efficiently because we only want it to supply power,

maybe only like 20 milliseconds out of every second. And so really fine-tuning that. And then the other part, and this is something we're really excited about, is partnering with a very innovative company called CILA Nanotechnologies, which has developed the world's first commercial silicon anode, battery, and we're proud to have the first ones ever in the Whoop 4.0. This is a unique battery, the CILA battery. You know, when you hear about batteries that have a little more power to them, it kind of

sounds like a sketchy thing. But this has actually been a bit of a breakthrough technology, and Woop was way out ahead. We are the first company to actually be using this new battery technology. Yes, and we're so excited, and it came down. Once again, we wanted to fit everything into a small form factor. And so we needed a bigger battery. However, we couldn't put a bigger battery in the smaller form factor.

And we found SELA a couple of years ago who'd been developing a really amazing, innovative technology to get extra energy into traditional lithium ion batteries. And it works. And we're so proud to be partnering with them. And what SELA's secret sauce is something called the silicon anode. And traditional batteries have a graphite mixture

usually on their anode, which is one component of a battery. And they've developed a novel new chemistry using silicon to get extra energy density. So in the same physical volume of battery, CELA's batteries are more energy dense, which is perfect for our situation. So we're actually able to make a smaller physical battery that still has enough energy that can power

the whoop strap for a multi-day battery life. Okay, speaking of battery technology, one thing that I think is probably within the top five complaints from WOOP members in the last, call it three years, is Will, I wore my battery pack into the shower, I destroyed it, I can't charge my whoop. Why isn't the battery pack waterproof? Okay, good news, battery pack 4.0, completely waterproof.

Talk about how we pulled that off. Yeah, definitely. It's one of the biggest complaints we hear from our members and something that bugged us too, frankly. And the reason why it wasn't waterproof was you had these little things on the side that connected to the generation three of the whoop strap. And also, it just wasn't engineered to resist water. So we went back to the drawing board and we're like, how do we make this watertight? And the big thing we couldn't get around was how do you charge the WOOP 4.0

if you need some contacts to pass the electricity through to charge the battery. And so what we did was use another groundbreaking technology, wireless charging. So we're happy to announce that the Woop 4.0 and the battery pack for it charge each other wirelessly. So the battery pack charges the whoop 4.0 wirelessly. You just slide it on, and you're able to charge the whoop strap, just like you've always charged whoop straps. But now using wireless technology, there's no contacts,

and we re-engineered the entire configuration of the battery pack to make it have the same waterproof rating that the strap has. So what that means is you can now shower with the battery pack, you can jump in a pool with a battery pack, it's not going to die of water anymore. And that I know it's going to make a lot of people, proud. You can also double-tap the battery pack to see its battery life, which is a nice feature because sometimes it's hard to know, is my battery pack, does it have enough juice to charge

my 4.0? And the other thing that this enabled from just a purely design standpoint wireless charging is the silhouette of the 4.0 actually got a lot cleaner. It used to be that they're all different kinds of electrical connectors on the side of the sensor. That's all gone, and now the overall profile of your whoop is really just the clasp. So it's now a much cleaner overall design and something that I think adds to customization, adds to the overall look and feel of the whoop 4.0. This will be the most customizable wearable ever. We've got all sorts of different colors, different buckles, different clasps that you're going to be able to play with.

it also comes with a new super knit band so whoop 3.0 had the pro knit this now has the super knit the super knit is what I would call kind of our most performant band ever it's a slightly thicker slightly more premium feeling band that's now going to come default with the whoop 4.0 and for those of you who love the pro knit we're also going to have whoop 4.0 pro nits so that'll be a for you to choose. So super customizable, a lot of different bands, and we know how much folks love those. Definitely. Obviously, we've been through a lot in building this company. I think people read the headlines and think it's kind of all up into the right. I think people are going to see this technology and assume that we've got magic wands. The last two years have been

really hard. I mean, developing Whoop 4.0 during a global pandemic, component shortages, You know, masks, bans on coming into the office, people having to work remote, ascending test equipment into people's homes and not knowing if they're able to use it properly. Describe some of the challenges that you feel like you've faced in getting this out the door. Definitely. It's been probably the most unique development process, hopefully that we'll ever go through, and it's been incredibly challenging. Obviously, when you're building a hardware product that's as innovative as this, you really want to be all together in the lab with the best equipment possible. Yeah. COVID prevented that from happening for a long time in our Boston office. Then you throw in on top of that, we manufacture in China. And usually our teams would go over, set up test equipment, help teach how to assemble, look at errors over there actually on the line, things like that. Unable to do that throughout the entire time, we've had to stay up at night. The team's done heroic feats, pulling all nighters sometimes, to work on the Chinese schedule to help the workers over there understand how to manufacture a whoop strap. and it's really hard to do it remote over Zoom with a physical product and a lot of tiny components.

So the team, once again, has done truly heroic things, and we managed to get it all together and have a product that we're really proud of shipping. All the data collections that we were doing had to be done during COVID. So we had to create these crazy COVID procedures that were time-consuming to allow for people to come into our labs to get tested.

And obviously, if you're wearing something all over your body, You know, it was practically like people wearing hazmat suits to get data collections. Accuracy's been something that since day one, I think it was an existential question of how accurate can you make a wearable. Especially one that's going to be from the wrist. This is now from the wrist. It's from multiple locations. Describe the sensing suite, and particularly the new photo diodes for whoop 4.0. Well, yeah, you hit the nail on the head with the whoop strap. It all boils down to how accurate can we monitor your body? body and so that we spend an enormous amount of time and resources trying to understand how we can make our sensor even more accurate and so what we did is we

went back to the drawing board the generation two to the generation three largely had the same type of sensors and sensor configuration however with gen 4 we went back and threw everything out and said if we started fresh today with the learnings we have how do we change things up we actually built around 90 different sensor configurations and different prototype whoop straps, looking at how different LEDs and photodiodes, the light detectors, could affect the signal to noise ratio. And so that's what we're really trying to optimize for, is getting more signal with less

noise so that we can get a cleaner signal to make better heart rate predictions. And with Gen 4, we really lock down on a couple different ideas that you'll notice that are different than the Generation 3. We have more LEDs, we have three green LEDs compared to two on the Gen 3. We also have a red and infrared light to give us SBO2. But these extra lights also come with four photodiodes compared to the one photo diode on Gen 3. And what we're really excited about here at launch is not only the increase that this new sensor

configuration gives us in terms of our signal quality, but the ability for us to develop a platform really of research and development to continue to make the heart rate more accurate over time. And so we're really excited that to announce that we have done over 20,000 data collect to develop this generation four. And we're not stopping here. Our Woop Labs team is up and running, and we're going to be developing new algorithms

every month and having a release, hopefully, every quarter, for the generation four to continue to improve our accuracy. Well, it's an amazing accomplishment, and what you and the team have done is really quite spectacular. Describe a little bit in a little bit more detail the different sensor configurations.

You talked about 90 different sensor configurations. configurations, I don't think people fully appreciate how complicated that is and what actually the process is for going from 90 different configurations down to one, which of course is now the best and it's the one that we've got on WOOP 4.0. Yeah, definitely. It's a very long process and the truth of the matter actually is it's an extremely hard, you know, physics problem, modeling problem, what's happening. You can try to make models, which we did before you build any prototypes to understand

how light might travel through the skin and get reflected back. to see what you think would be the best. But at the end of the day, it really comes down to empirical studies and trying to maximize the signal quality. And so what we did was look at the effects of a bunch of different variables. So, you know, we sat down and had a planning session, and we're like, okay, the number of LEDs could affect things. The brightness of the LEDs could affect things.

The number of photodiodes could affect things. The geometric placement of the photodiodes and LEDs in relation to each other could affect things. the mechanical structure on the bottom could affect things. And so you get this huge matrix of different ideas to test out. And basically, we literally built prototypes, which each of those different ideas, trying to change only one thing at a time to suss out when we changed something and we saw a positive or negative effect.

Could we relate it back to what we did? And if so, like, how can we improve the next generation? So we kind of had a series of four phases, we called it, where we changed a category of things, saw which one worked the best. tweaked it and then went to the next category and the next phase built new prototypes and and mind you in each one it's not just building the prototype and throwing it on a bench in the lab it's actually recruiting human participants to come into our labs get strapped up with a whole bunch of

different prototypes chest straps ECGs the whole works collect data in a very careful protocol and also live sports activities and then we get it back and see what worked and didn't work so each round required a ton of work from all of our different teams across hardware, data collection, signal processing, to really understand how we can make the signal that much better. Now, playing dumb for a second, describe why it's important to have different human participants, like different people come in and test. With whoop, we've always wanted to be the most accurate physiological sensor on the market,

but not just in ideal conditions, in conditions where anybody that buys a whoop strap would get the best experience possible. So people have, obviously, different skin tones, things like that that can affect. affect how much light gets absorbed or reflected. So typically speaking, just on that point, people who have much darker skin, and I don't know if this is well known in the industry, they actually have much worse accuracy with other wearables because other wearables only did tests on light-skinned individuals. Yeah.

You know, having started with athletes and working with a diverse population from day one, that was one thing we wanted to nail, was being really accurate for all different skin tones. That's definitely something we're very conscious of and actually true. track when we recruit participants is what's the diversity of skin tone, but also other demographic factors. And even things that are even hard to quantify, such as just anatomical differences in your wrist, where bones, tendons, blood vessels are, you can't really quantify it, so it's really important just to get a wide variety of people to test it out on and see how it'll work

in different conditions. And that's something we took really seriously. So it wasn't just one or two people in the lab for each prototype, you know, it was a suite of 20 to 40 different people. So we've talked about some of the challenges associated with building it. Good news is we're now building it. When are folks getting it? They will be getting the first whoop 4.0s in hand the week of September 27th.

So it's coming out the door. We're manufacturing as we speak. If you are an existing member, you're first in line. Go to the whoop app. Sign up. If you have over six months of membership, by the way, we send it to you for free, like literally. It's just going to show up in the mail.

So there's really no reason not to secure your WOOP 4.0 today. And I think it's, you know, it's an amazing piece of technology. So that's shipping, end of September, first come, first serve. We're launching WOOPRO. WOOPRO is an elevated membership experience, primarily focused on apparel. You know, we see a lot of our members are buying apparel every month or every quarter. This is really the most cost-effective way to do that. So you pay $12 a month, and in turn, you're able to get a free item every quarter.

So, for example, you could get a WOOP battery pack, a WOOP bra or boxers, a new kit. There's going to be some exclusive bands for WOOPRO members. So this is, you know, really your trunk club offering. You're going to be able to get all sorts of cool apparel every quarter. and it's cost effective because if you do the math on 12 bucks a month versus what you get

you're saving I think close to 40% or 50%. Also is going to give you free shipping on everything in the store it's going to give you 20% off anything in the store so we're excited about WUP Pro we hope people enjoy that

and I think to close here Kappa why don't we speak for a second about just like what it means that WOOP is a subscription you know that was I think one of the most profound decisions we made in building the company, going from selling hardware to selling a subscription, having the hardware be included.

Obviously, that's part of this upgrade process, but it's also, I think, how we think about future development. Where are we taking this thing? While we're so excited to launch the 4.0, this is just the beginning of us utilizing this brand new platform that we've built to launch brand new features, new measurements, and a lot more coaching to help people understand how to optimize their performance. And we're also going to get more accurate over time. And we're looking forward to having members get their hands on it soon.

So well said. I mean, this new 4.0 is a new hardware platform. We're going to be sending it firmware updates, you know, where all of a sudden you can now wear the 4.0 in a different location. We're going to be updating the health monitor page and the sleep coach page as they interact with your 4.0. We're going to be doing that in real time. We're going to be adding all kinds of just new software features related to the community,

the ability to follow other people, to be able to interact with your friends. We just launched team chat, which I think people are loving. We're also gonna have a bunch of features related to gamification and achievements and overall performance. So it's a really exciting time, I think,

in the company's history. I'm really proud of WOOP 4.0 and what we've built and just how far we've come together and the rest of the WOOP team. To all the WOOP members out there listening to this, a big thank you from from John and me and the whole whoop team. And I'll just say this, like we feel a deep responsibility

as a subscription business to be launching new features every day, every week, every month, every year to help you improve your health. That's what comes with the subscription and that's the responsibility that we feel to you. So with that, thank you, get your whoop 4.0. It is the best technology we've ever created. We're not just saying that.

And we'll be back soon. Don't forget, you can use the code Will Ahmed. If you're new to Whoop, W-I-L-L-A-H-M-E-D to get 15% off a W-W-P membership, which is going to include the WOOP 4.0. Check us out on social. At Woop, at Will-A-M-E-A-B. Please like, review, subscribe to the WOOP podcast. We appreciate all that feedback. Stay healthy. Stay in the green. You know, You know,