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

Amazon.com Price: $49.00 (as of 04/02/2025 04:28 PST- Details)

FSA/HSA: WHOOP is FSA/HSA eligible! As a certified retailer, you can purchase your WHOOP 4.0 Battery Pack directly with your FSA/HSA card at checkout.
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.