Whoop Band 4.0

Whoop Band 4.0 overview

It is a sleek, screenless fitness and health tracker designed for 24/7 wear, offering in-depth insights into your body’s performance, recovery and sleep. It features an advanced sensor array with five LEDs (including green, red and infrared) and four photodiodes to accurately monitor heart rate, heart rate variability (HRV), respiratory rate, blood oxygen (SpO₂), skin temperature and more. The device is 33% smaller than its predecessor and comes with an IP68 rating, making it water-resistant up to 10 meters and durable for everyday use, workouts and sleep tracking.

The Whoop 4.0 is built around a subscription model that gives users access to a powerful app that tracks three main pillars: strain, recovery and sleep. The Strain Coach helps manage physical and mental effort throughout the day, the Recovery Score evaluates readiness based on physiological markers like HRV and resting heart rate and the Sleep Coach recommends optimal sleep duration and wake times, complete with a smart haptic alarm. It also supports journaling features to track lifestyle factors such as caffeine intake, stress levels and hydration, helping users correlate behavior with health trends.

Battery life lasts up to five days on a single charge and it features a unique wireless battery pack that allows you to charge the device while wearing it, ensuring uninterrupted tracking. Though it lacks a screen and standard smartwatch features like step counting or notifications, it compensates with accurate data and personalized feedback tailored for performance-minded users.

The Whoop 4.0 is ideal for athletes, biohackers or anyone serious about optimizing their health and performance, offering a high level of data-driven coaching and accountability through its app. It is available in multiple color options, with customizable bands and garments to match your style and comfort preferences.

Buy this product at The Tomorrow Technology ltd