WHOOP Battery Pack 4.0 – Portable, Wearable, Water-Resistant Charging Component 4.0 Wearable Health, Fitness & Activity…

Make sure this fits by entering your model number.
LONG-LASTING POWER – Get continuous data for days on a single charge with our battery pack that enables you to charge on-the-go while you wear it.
DURABLE & WATER RESISTANT – Designed to provide long-lasting power for years to come. P68 dust-proof and water-resistant up to 1 meter for 2 hours.
COMPACT & PORTABLE – Compact and lightweight, making it easy to carry with you wherever you go. Whether you’re traveling, working out, or simply need to extend your WHOOP tracker’s battery life, this battery pack is the perfect solution.
EASY TO USE – To charge your WHOOP 4.0 Health and Fitness Tracker, simply slide the battery pack on your device for charging on-the-go. Use the included USB cable to recharge your battery pack from a laptop.
SAFE & RELIABLE – Built with safety in mind, our WHOOP 4.0 Battery Pack features overcharge and short-circuit protection to ensure that your WHOOP tracker is always protected.