![Whoop review: can a wrist strap without a screen really make you fitter, healthier and faster? We put it to the test | Cycling Weekly Whoop review: can a wrist strap without a screen really make you fitter, healthier and faster? We put it to the test | Cycling Weekly](https://cdn.mos.cms.futurecdn.net/U3myauez7gS8FqNExiLDFi.jpg)
Whoop review: can a wrist strap without a screen really make you fitter, healthier and faster? We put it to the test | Cycling Weekly
![Help, I haven't been able to get any charge to my whoop 4.0. Once the battery pack goes green the strap doesn't work even with repeated taps on the top of the Help, I haven't been able to get any charge to my whoop 4.0. Once the battery pack goes green the strap doesn't work even with repeated taps on the top of the](https://external-preview.redd.it/help-i-havent-been-able-to-get-any-charge-to-my-whoop-4-0-v0-HaML9Jhcv_32EZ4gIan3fz7bA-ZErXQTcX1T03ZDmlQ.png?format=pjpg&auto=webp&s=2f1fb7a23e885a6e2be4cff3356bcbb6b75daa8e)
Help, I haven't been able to get any charge to my whoop 4.0. Once the battery pack goes green the strap doesn't work even with repeated taps on the top of the
![Amazon.com: WHOOP Battery Pack 4.0 – Portable, Wearable, Water-Resistant Charging Component 4.0 Wearable Health, Fitness & Activity Tracker : Electronics Amazon.com: WHOOP Battery Pack 4.0 – Portable, Wearable, Water-Resistant Charging Component 4.0 Wearable Health, Fitness & Activity Tracker : Electronics](https://images-na.ssl-images-amazon.com/images/I/41XDrk9P0dL._AC_UL200_SR200,200_.jpg)