Ultra-Thin Smart Watch, AMOLED Display, Sleep & Fitness Tracking, Wireless Calling, Information Reminder, Multiple Sports Modes, AI Voice, Calculator, Music Playback, Compatible with Android/iPhone, USB Charging, Rechargeable Lithium Polymer Battery, Silicone Strap – Ideal Gift Product details: Power Mode: USB Charging Battery Properties: Rechargeable Battery Battery Capacity: 200mAh Rechargeable Battery: Lithium Battery-Polymer Wireless Property: wireless … continue reading -> “Ultra-Thin Smart Watch AMOLED Display”