Whoop 4.0 review
Our Verdict
The Whoop 4.0 is one of the best fitness trackers for those serious well-nigh their sport
For
- Sleep tracking is improve than most other trackers on the marketplace
- Eye rate, peel temperature, SpO2 sensors
- Smaller than the Whoop 3.0
- Interchangeable bands
- Compatible with Whoop Body
Against
- It does crave a monthly subscription
- No screen
- No GPS
Tom's Guide Verdict
The Whoop 4.0 is one of the best fettle trackers for those serious about their sport
Pros
- +
Slumber tracking is better than about other trackers on the market
- +
Center rate, skin temperature, SpO2 sensors
- +
Smaller than the Whoop iii.0
- +
Interchangeable bands
- +
Compatible with Whoop Body
Cons
- -
Information technology does require a monthly subscription
- -
No screen
- -
No GPS
- -
Whoop 4.0 Specifications
Size: 1.5 inches x i inch x 0.5 inches
Waterproof: Up to 10 meters
Battery life: iv-5 days
Sensors: 5 LEDs (three green, 1 red, and 1 infrared) for heart charge per unit, blood oxygen, pare temperature
It's been a while since Whoop announced the Whoop iv.0 fettle tracker, which is 33% smaller and promises to have more accurate middle rate tracking than the Whoop three.0.
What's more, the Whoop 4.0 is uniform with the brand'southward new line of apparel, "Whoop Body," which allows Whoop wearers to wear their wearing apparel in different spots on the trunk, rather than just the wrist. I've been testing the Whoop iv.0 tracker for the past month, and have found it to be a seriously helpful tool for health buffs.
Compared to nearly all of the best fitness trackers on the market, the Whoop 4.0 doesn't have a screen, so you won't be able to use it to say, look at your pace on a run, or check your center rate without logging into the app.
But is it worth the monthly subscription fee, especially when a lot of other trackers as well give you these metrics, as well equally on-the-get data? Read my Whoop 4.0 review here to discover out more.
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Whoop 4.0 review: Price and availability
Similar pretty much every tech item in 2021, the Whoop 4.0 experienced a lot of delays before it shipped.
The Whoop 4.0 band is free, just users will need to pay a Whoop subscription to use it. The subscription itself costs $30 per month, but there are 6-month ($288) and 12-calendar month ($324) subscriptions that work out to be a little cheaper.
The accompanying Whoop Body apparel has piddling pockets, assuasive you to slot the tracker into your garments rather than around your wrist. The range includes sports bras ($79), leggings ($109), compression tops ($64), too as arm sleeves ($34), and boxer shorts ($69 for ii pairs).
For consummate clarity, I had some issues with the first review unit I received, which didn't charge, and I know this is an issue a lot of users have experienced. The 2d unit of measurement worked perfectly, equally is the i I accept been using for this review.
Whoop 4.0 review: Pattern
The Whoop 4.0 is thirty% smaller than the Whoop 3.0. I measured the device in the band on my wrist every bit 1.5 inches long, 1 inch wide, and near 0.5 inches deep. It also has a new design to make swapping straps and removing the unit itself a piffling easier — this is partly down to the introduction of Whoop Body products, which allow you to wear the tracker on dissimilar parts of the body using Whoop gym kit, merely we'll come to that later.
I stand-out feature of the Whoop 4.0 that I actually wish brands like Apple would sit upwards and take notation of, is the charger port. The ring prides itself on 24/7 tracking, and then the charger tin exist slipped over the tracker while it's in the ring on your wrist, for on-the-go charging. The charger does make the tracker a fiddling bulkier and heavier on the wrist, merely it'south not all that bad if you're just sitting backside a desk at work, or on the commute, however, if you are using whatsoever of the Whoop Body accompanying kit, the tracker with the charger would be too bulky to fit in the garments. In my testing, it took almost 2 hours for the tracker to fully charge, just the battery did last for around five days.
Compared to the Whoop 3.0, the charger on the 4.0 is also waterproof, significant you could wear your Whoop and its charger in the shower or while pond. That said, I shortly realized that the fabric wristband didn't dry out all that fast, so I took information technology off when showering and swimming, because who wants a wet wrist for hours? (I also have super-sensitive skin, and found the wet band made me itch a lot).
There'south no display to speak of with the Whoop iv.0 — every bit mentioned above, you have to sync your Whoop and use the accompanying app to cheque all your information. You can double-tap on the tracker to see your battery bar on the side, but apart from that, think of this like a clever bracelet you ignore.
Whoop 4.0 review: Agreement the data
Normally, I'd go into dissimilar ways to get the about out of the tracker in this part of a review, just for new Whoop users, I feel like it'due south important to take a second to explain what the hell you lot're looking at when yous open up the app. I warn you at present, Whoop can experience overwhelming for the starting time week or so, but it soon becomes second nature.
Like Whoop 3.0, Whoop 4.0 works off two metrics — Strain and Recovery. They are the start things you'll come across when you log into your app. Your Recovery score is based on how well y'all've slept. Your Strain score is based on how much y'all've worked out that day. Strain is based on your heart rate, and then if you've gone on a gentle three-hour bike ride, but kept your middle charge per unit pretty low, your strain score volition be lower than if yous've gone on a 30-infinitesimal run. Your strain starts at 0.0 each morning, and the max strain score Whoop is said to give is 21.
Clicking on the Strain tab next to the overview allows you to meet your daily strain again, and how 'primed' y'all are to accept on strain (or hard activeness) that day. As you scroll downwardly, yous'll see your average day strain, eye rate, and calories burned.
The other of import metric is recovery, which accounts for how long you've slept, your respiration rate, your resting heart rate, and your heart charge per unit variability. These don't agree the same weight in Whoop's recovery algorithm, then for case, if y'all have a long but unrestful dark's slumber, your score might exist lower than when you spend less fourth dimension in bed, but sleep well. The algorithm determines how recovered from yesterday's strain. The college your recovery score, the more ready you are to have on a difficult workout.
Whoop 4.0 review: Sleep tracking
I wore the Whoop iv.0, comfortably effectually my wrist for a few weeks as I sleep (or don't sleep, co-ordinate to Whoop). The Whoop automatically detects slumber, and during my testing, I found it was pretty authentic in determining when I'd really fallen asleep — I normally get into bed at around 10 pm, but scroll on my phone or look at photos of my puppy for nearly thirty minutes before actually falling asleep. I was besides wearing my Apple tree Watch six for the elapsing of my testing and constitute the Whoop's slumber tracking to exist far more accurate than the Apple tree Watch, which would ofttimes find sleep if I were sitting watching TV.
When you go out of bed in the morn, you become a notification on your phone alerting y'all that Whoop has calibrated your sleep. This unremarkably happened after I'd been moving around for fifteen-20 minutes, so if, dissimilar me, you don't have to jump out of bed and take the dog for a walk, you might find this sleep score takes a niggling longer to come up through. When you log into the app, Whoop will ask you to make full in your 'journal,' which asks questions about your caffeine intake, or sleep habits. These are completely customizable in the app and are designed to assistance you clarify how behaviors and lifestyle choices bear on your recovery. I toggled near of them off, every bit I didn't desire to run across hard bear witness that I should stop drinking java and looking at my phone before bed, merely still got automated questions about Covid-19 symptoms each morning time.
Under the sleep section of the app, yous can see in-depth information nigh your dark's slumber, including time in bed, hours comatose, slumber need, slumber performance, disturbances, sleep efficiency, and stages of sleep. The app also suggests when yous should go to bed that evening to get enough sleep, which is what Whoop calls the Sleep Coach.
I'm a pretty adept sleeper — I don't struggle to fall asleep, and if I didn't accept a puppy that wakes me upwardly the second the clock turns 7 a.m. (seriously, is he programmed by Whoop as well?), I reckon I'd go a skilful nine hours nigh nights. That said, during my testing, I never managed to get my sleep functioning score above 88%. Whoop'southward algorithm seems to think everyone needs nine-x hours of sleep per night, which, unless you have no social life, kids, or a 9-5 chore, seems a lot. You can boost tomorrow's sleep score by taking a nap, but once more, unless you're an athlete, this probably isn't something you'll take time to exercise.
With the Whoop 4.0, Whoop too added haptic alerts, which can wake y'all up with vibrations on the wrist. You lot tin can set an alarm for an exact fourth dimension, which I did, and found to exist a much more pleasant way to wake up than my iPhone alert. Alternatively, you can set an alarm for your tracker to wake yous upwardly once yous've reached a sleep goal — 100% of your slumber need, 85%, or lxx%, or once your tracker determines you've reached a green Recovery score. Personally, the idea of my tracker robbing me of sleep is a waking nightmare, but the haptic alert is a handy feature.
Whoop 4.0 review: Heart rate tracking
The Whoop iv.0 sensor contains five LEDs (iii dark-green, one blood-red, and one infrared), four photodiodes, and advanced algorithms for more authentic heart charge per unit tracking. A huge complaint many people had with Whoop three.0 was that the center rate tracking was inaccurate. I establish, when comparing my running heart rate data from my Garmin Fenix 6 to the Whoop, the heart charge per unit graphs looked very similar.
Unlike my Garmin, notwithstanding, you cannot connect the Whoop to whatever third-party breast heart rate straps, which are commonly considered to be more accurate than optical sensors. That said, the introduction of Whoop Body is that with a Whoop Body bra, y'all can article of clothing the sensor in the breast ring of your bra. I'm yet to attempt the Whoop tracker with any of the Whoop Trunk clothes but will update this review once I've done so.
Whoop 4.0 review: Workout tracking
Like with sleep tracking, the Whoop uses automatic workout detection to rail your workouts. Whoop will automatically create a workout when information technology thinks y'all are exercising, and tag it to what it thinks your doing, such as a run, or a bicycle ride. Yous can go in and edit the conditioning one time you've finished, and retag it should you demand to. You tin can't delete workouts, only it seemed to pretty accurately pick up when I was running, cycling, or doing a HIIT session.
When you click on the activity in the Whoop app after your workout, y'all'll exist able to see metrics on your heart rate zones and calories burned. Whoop will too requite you information about your workout, such as how it compares to like activities. Whoop doesn't give yous specific conditioning information, like your boilerplate stride if y'all're running, or your boilerplate speed on the bike, so you'll probably want to vesture some other fitness tracker on the other wrist if this information is important to yous.
I know what y'all're thinking — wait, I have to habiliment 2 watches? This is something I've struggled to get my head around with the Whoop. Every bit there'southward no screen, you tin't utilize the Whoop for alive grooming feedback, but this isn't the indicate of the tracker. It's all most your strain and your recovery, which is measured by your middle rate, then I observe information technology easier to call up of the Whoop strap as a fancy heart charge per unit monitor rather than a traditional fettle tracker.
One workaround, however, is to track the activity or workout in the app on your phone, nether the 'Strain Coach' setting. One time you've toggled GPS, and Track Route on, you lot can caput out for your run or ride with your phone and your Whoop, and encounter information such as average pace, and a map of where you lot've traveled, when yous get dorsum. At that place are a huge number of unlike sports to choose from using the drop-downward menu, and the activeness map can and then be synced with third-party apps like Strava.
Another feature I found handy was using my Whoop 4.0 equally a heart rate monitor when using my Peloton Tread. Toggling 'broadcast heart rate' in the device settings allows you lot to use the Whoop as you would a eye rate monitor.
Whoop 4.0 review: Verdict
The Whoop iv.0 is undoubtedly a bright health tracker for anyone looking for enhanced wellness insights. There's a clear reason why a lot of the worlds' pinnacle athletes take been spotted with i on their wrist or around their bicep — for a motorcoach, this data would be invaluable. I haven't even touched on insights such every bit peel temperature, which can exist used as a metric to encounter when your core body temperature is rising — this could be a sign y'all're getting ill, as well equally giving more detailed sleep data. This tracker is manufacture-leading in the tracking and data it provides.
But, is it worth it? At $thirty a calendar month, the Whoop subscription isn't inexpensive, and unless you're really using the data, I'd argue you'd be better off investing in one of the best fettle trackers, or best running watches that give you recovery data, every bit well as the ability to use the watch as, well, a sentinel. That said, I wish I'd had the Whoop 4.0 on my wrist for my last marathon training schedule, and I've plant that on days where I wake up feeling tired, by my Whoop tells me my body strain score is low, it does give me that boot to get my shoes on and do the speed session my brain is telling me to skip.
Like all items of fettle tech, the Whoop iv.0 is just worth it if you use it, but if y'all're looking to enhance your training with in-depth data, or learn to piece of work out more intuitively later a string of overtraining injuries, it's one of the near advanced trackers on the market.
Source: https://www.tomsguide.com/reviews/whoop-4
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