It takes time to use all the functions. Online manuals with over 100 pages! I can't comment on the sleep tracking until I've used it.
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
Amazfit T-Rex - Rugged Smartwatch in Army Green: Unleash Your Inner Adventurer!
49 Review
HUAWEI Watch GT 2 (42mm) - AMOLED Display, 1 π°οΈ Week Battery, GPS, Heart Rate Monitor, Night Black (International Model, No Warranty)
135 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
Replacement Band For Garmin Fenix 3 / Garmin Fenix 3 HR / Garmin Fenix 5X Fitness Smartwatch Accessories Watch Strap Band
30 Review
Smart Xiaomi Mi Band 7 Global bracelet for Russia, black
94 Review
Garmin Vivosmart Purple Certified Refurbished
23 Review
Smart bracelet Xiaomi Mi Smart Band 4 RU, black
213 Review