The WHOOP 4.0 sensor and a black onyx superknit band are sold together. They are brand new and have never been used. This is a cheaper alternative to ordering a replacement sensor and band from WHOOP.

Feel free to message me if you have any questions/concerns.

I am also selling a replacement WHOOP 4.0 battery charging cable - see my seller profile for the listing.

*The sensor is in perfect working order as it charges and enters pairing mode successfully. However, I do not take responsibility in the extremely unlikely event that the sensor stops working after I send it.