4.0
WhoopReleased May 1, 2020 · Analysis updated Feb 16, 2026
Whoop 4.0 provides detailed sleep analysis, 24/7 comfort, waterproof design, and 6-day battery life. The Whoop 4.0 scores 80/100 based on 39 expert reviews in the fitness trackers category. Coverage includes reviews from Michaelkummer, Telegraph, Zdnet, and Cyclingnews.
Critic Score
What's this?based on 39 expert reviews
Where to buy
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Pros
- Excellent sleep tracking with detailed analysis(40)
- Comfortable to wear 24/7(11)
- Waterproof(8)
- 6-day battery life(7)
- Long battery life(5)
Cons
- No screen(20)
- Expensive subscription model(15)
- Requires monthly subscription(9)
39 Publication Reviews
AI summary of this review
WHOOP gives you detailed insight into your daily strain, recovery, sleep and more, and makes it easy to correlate lifestyle choices (like what you eat) with changes in your health metrics.
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The Whoop 4.0 tracker provides detailed data on fitness performance and recovery, helping users create better habits around sleep and exercise.
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The Whoop 4.0 is much more than a detailed sleep tracker, and people who work out regularly will see more benefits than those who lead a sedentary life.
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A highly specific piece of tech that provides a depth of insight about health and fitness metrics, but which may be wasted on all but the most committed of users
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After eight months of testing, the WHOOP 4.0 armband remains the reviewer's preferred wearable due to its accurate health monitoring, valuable recovery insights, and convenient daily journal feature.
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WHOOP 4.0 is a screenless, subscription-based wearable that excels at recovery tracking and sleep analysis, offering detailed insights into your body's readiness to perform.
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WHOOP 5.0 is a next-gen tracker that focuses on recovery, sleep, and strain levels, offering actionable insights for athletes who demand performance optimization.
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The WHOOP 4.0 is a comfortable, comprehensive health and fitness tracker that excels at sleep monitoring with personalized recommendations and detailed metrics.
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After trying it out for a year, I do consider the WHOOP to be well worth it.
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The Whoop 4.0 is a screen-free fitness tracker that excels at comprehensive health monitoring without digital distractions, making it ideal for athletes and fitness enthusiasts focused on performance ...
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The reviewer finds WHOOP 4.0 valuable for tracking sleep, recovery, and strain, providing actionable insights that improve awareness of their body's needs.
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Despite the lack of screen and the less-than-optimal data load times, WHOOP is clearly a superior health tracker.
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WHOOP 4.0 is a wearable fitness tracker that offers continuous monitoring of physiological data and provides personalized insights to help you understand and improve your overall health and wellness.
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Whoop 4.0 delivers a host of significant hardware and software upgrades from 3.0. Combined with Whoop Body (garments where the tracker can be placed), Whoop has raised the bar for wearable tech.
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The Whoop 4.0 offers excellent fitness tracking for pickleball with accurate activity recognition and deep recovery insights, though its subscription cost and lack of screen may deter some users.
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The Whoop MG refines the screenless formula with advanced metrics like ECG and blood pressure tracking, but it comes at a steep subscription cost.
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The Whoop 4.0 provides excellent in-depth health analysis and sleep tracking, though its constant monitoring may be overwhelming for some users.
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Whoop is a screenless, wrist-worn wearable that tracks your health, workouts, sleep and overnight recovery via a combination of sensors.
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The WHOOP 4.0 is a premium fitness tracker designed for fitness enthusiasts focused on making major changes, offering advanced biometrics and strain/recovery tracking.
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The WHOOP 4.0 is a competent, purpose-built fitness tracker that provides comprehensive health metrics with agreeable accuracy, though its lack of display and smartwatch features may not suit everyone...
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With some of the best sleep tracking we've come across, the Whoop 4.0 will get you prioritising rest in no time.
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The Whoop 4.0 is a comprehensive fitness tracker that measures sleep, recovery, and strain to help users optimize their performance, though its subscription model and challenging strain scoring may no...
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The Whoop MG delivers unprecedented medical-grade health tracking with ECG and blood pressure insights, but its hefty $359/year price tag may be hard to justify for casual users.
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The WHOOP 4.0 fitness and health tracker gives especially ambitious athletes valuable insights into their own body to optimise training and recovery and to help them reach their full performance poten...
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The popular fitness wearable earns its stripes helping dedicated athletes improve performance by maximizing recovery.
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Years after its debut, the new Whoop band is still a uniquely designed tracker with distinctive health offerings.
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Whoop blends into the background, a lifestyle coach designed to feedback on your rest and recovery, guide you to better sleep habits and to make better choices.
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The Whoop 4.0 is expensive but provides excellent analytics and coaching features that have improved significantly since its initial release.
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The Whoop 4.0 fitness tracker provides detailed, thorough insights that athletes and runners can use to help set, track, and achieve fitness goals, but it's too complicated and expensive for most casu...
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The Whoop 4.0 is an excellent fitness tracker, but you'll have to pay high prices to get it.
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Whoop 4.0 is a substantial leap forward in terms of workout accuracy over Whoop 3.0, but I'm not convinced yet that Whoop has addressed the shortcomings with their recovery algorithm.
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The Whoop 4.0 is meant to be worn 24/7 and gives athletes extraordinary data on their sleep and recovery, but it's not without its downsides.
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The Whoop 5.0 delivers excellent battery life, accurate health tracking, and meaningful new insights, though its subscription pricing makes it a costly commitment.
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For a small subset of wealthy athletes, Whoop is one of the best wearables you can buy, but its $30 monthly subscription and limited features make it hard to recommend for most people.
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Comfortable, competent, and motivational, the Whoop 4.0 is a great distraction-free fitness tracker, but it doesn't standout against the competition, so fails to justify its high price.
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WHOOP 4.0 offers a very polished experience for those looking to delve deeper into their training and performance but the lack of screen will put some off.
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Nechama Katan shares her experience with Whoop 4.0, finding it helpful for recovery tracking but ultimately deciding not to keep it due to cost and existing fitness routines.
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