Whoop 4.0

The Whoop 4.0 health and fitness monitors adds SpO2 and skin temperature tracking, but suffered from inflated heart rate readings and falsely detected activities in testing.

-- As reviewed by PCMag
Whoop 4.0 1

Product details

  • EVERYTHING YOU NEED IS INCLUDED: Purchase includes an initial 12-month WHOOP membership, 4.0 hardware, Onyx SuperKnit band, and wearable, waterproof* battery pack.
  • CONTINUOUS MONITORING: WHOOP is a unique wearable fitness device that offers continuous monitoring of physiological data, including heart rate, respiratory rate, resting heart rate, heart rate variability, skin temperature, blood oxygen levels, daily activity and sleep so users can better understand their overall health and wellness status and track their progress over time.
  • PERSONALIZED FOR YOUR GOALS: WHOOP is insight-driven, providing users with clear next steps and a science-backed approach so they can understand and improve their overall health and optimize performance. Track and log your daily behaviors like activity, diet, alcohol consumption, stress levels, caffeine intake and more with the WHOOP Journal. WHOOP then calculates which behaviors help or hurt your sleep and recovery most, making it easier to stick with healthy habits.
  • ON THE GO CHARGING: Get continuous data for days on a single charge with our waterproof* battery pack that enables you to charge on the go while you wear it.
  • COMMUNITY SUPPORT: WHOOP offers a supportive community of users, including professional athletes and fitness enthusiasts, who share their experiences and insights. This community provides users with inspiration and encouragement as they work to achieve their fitness and wellness goals. Additionally, WHOOP's community provides users with access to expert resources and guidance to help them optimize their health and wellness.
  • MONITOR & MANAGE STRESS LEVELS: Now WHOOP gives you daily insights about your stress, and science-backed techniques to help manage it. Stress Monitor measures your HRV and heart rate to calculate a personalized stress score from 0 to 3. Based on your score, you can choose a breathwork session to either increase your alertness for performance or increase relaxation in a stressful moment.
  • STRENGTH TRAINER: Strength Trainer fills a critical gap in the wearables space by quantifying both cardiovascular & muscular load for a comprehensive view of your training & overall Strain, allowing you to train more effectively & efficiently. Strength Trainer tracks exercises, reps, & weight usage to calculate your muscular load & strain on your musculoskeletal system, either from building your own workout or chosing from pre-built options by some of the best trainers & athletes in the world.

PROS

+ Tracks blood oxygen saturation and body temperature
+ Haptic alarms
+ Offers weekly and monthly performance assessments
+ Waterproof, highly portable charger

CONS

- Innacurate heart rate readings and workout tracking in testing
- Can irritate skin
- Requires pricey membership
- Knit bands take a long time to dry
- No display
- Mediocre battery life

Expert reviews and ratings

By PCMag on January 26, 2022
The Whoop 4.0 health and fitness monitors adds SpO2 and skin temperature tracking, but suffered from inflated heart rate readings and falsely detected activities in testing.
50
By TechRadar on January 06, 2022
The Whoop 4.0 fitness tracker looks much like its predecessor, with a simple screenless design, but there are some major changes under the hood including new SpO2 and temperature sensors, all packed into a smaller case. Data is synced with the Whoop smartphone app, where you'll find a wealth of health and fitness stats to help you optimize your training, sleep routine, and lifestyle to perform at your best. If you're not deeply invested in sport then it'll likely be overkill, but if you want to push yourself to the next level then it's an excellent tool.
80
By The Verge on March 02, 2022
The Whoop 4.0 is a recovery-focused fitness tracker with a lot of buzz, celebrity backers, and a devoted fan base. However, it’s ultimately an experimental niche wearable that’s too expensive for the average person.
70
By TechAdvisor on November 30, 2022
The Whoop 4.0 is unobtrusive and provides interesting fitness data after about a month of use, but it doesn’t give enough guidance to justify the expensive subscription plan.
70
By Pocket-Lint on May 21, 2023
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. It's not a replacement for a smartwatch or a fitness tracker, but for those wanting something obtrusive the Whoop is an interesting choice.
80
By Pocket-Lint on May 21, 2023
O Whoop é um treinador de estilo de vida concebido para dar feedback sobre o seu descanso e recuperação, guiá-lo para melhores hábitos de sono e para fazer melhores escolhas. Não é um substituto para um smartwatch ou um monitor de fitness, mas para aqueles que pretendem algo discreto, o Whoop é uma escolha interessante.
80
By Pocket-Lint on May 21, 2023
Whoop gaat op in de achtergrond, een lifestyle coach ontworpen om feedback te geven over je rust en herstel, je te begeleiden naar betere slaapgewoonten en betere keuzes te maken. Het is geen vervanging voor een smartwatch of een fitnesstracker, maar voor wie iets opdringerigs wil is de Whoop een interessante keuze.
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By Tom's Guide on January 05, 2022
The Whoop 4.0 is one of the best fitness trackers for those serious about their sport
90
By Pocket-Lint on May 21, 2023
Whoop tritt in den Hintergrund, ein Lifestyle-Coach, der Ihnen Feedback zu Ihrer Erholung gibt, Sie zu besseren Schlafgewohnheiten anleitet und Ihnen hilft, bessere Entscheidungen zu treffen. Es ist kein Ersatz für eine Smartwatch oder einen Fitness-Tracker, aber für diejenigen, die etwas Auffälliges suchen, ist Whoop eine interessante Wahl.
80
By Pocket-Lint on May 21, 2023
Whoop se funde en el fondo, un entrenador de estilo de vida diseñado para retroalimentar tu descanso y recuperación, guiarte hacia mejores hábitos de sueño y a tomar mejores decisiones. No es un sustituto de un smartwatch o un rastreador de fitness, pero para aquellos que quieren algo molesto el Whoop es una opción interesante.
80
By Pocket-Lint on May 21, 2023
Whoop se fond dans le décor. Il s'agit d'un coach de style de vie conçu pour fournir un retour d'information sur votre repos et votre récupération, vous guider vers de meilleures habitudes de sommeil et vous aider à faire de meilleurs choix. Il ne remplace pas une smartwatch ou un tracker de fitness, mais pour ceux qui recherchent quelque chose de discret, le Whoop est un choix intéressant.
80
By Pocket-Lint on August 30, 2023
This is a superb screen-free recovery tracker, perfect if you're serious about your training.
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