ETbotu Smart Bracelet Multifunction Waterproof Fitness Activity Tracker Sports R3 Bracelet Watch Heart Rate Monitor Wris

-- Support cell phone real-time connection through Bluetooth, effectively avoiding missing massage or phone call.
-- 24 hours real time dynamic heart rate monitor, plan appropriate physical exercises.
-- Automatically track your sleep quality, and alarm silent vibration will wake you up.
-- Large Battery capacity 80mAh ensures a long standby time.