
It seems to work well but the battery life is only 3 or 4 days if you wear it at night. Revain suggests that you buy a face protector with it. I did but the face is slightly domed so the protector doesn't lie flat and collects dust around the rim. If you don't use a protector the face gets scratched up easily.

Smart Xiaomi Mi Band 7 CN Bracelet, Black
45 Review

Honor Watch GS Pro Smart Watch, 1.39" AMOLED Waterproof with Bluetooth GPS and 25-Day Standby Time for Fitness and Running (White)
90 Review

MuGo Women'S Smart Watch, 1.69" Fitness Tracker With Heart Rate And Sleep Monitor, Touch Screen Pedometer Watch, IP67 Waterproof Activity Tracker For IOS And Android - Pink
34 Review

Renewed Apple Watch Series 6 (GPS, 40mm) Blue 🕰️ Aluminum Case with Navy Sport Band - Get Yours Now!
88 Review