U Watch UX Wrist waterproof for iPhone 6 Plus 5S 4S Samsung S5 S6 Note 4 HTC Android Phone Smart phone (White) Headphones, business health companion, Bluetooth music, fashion along with you Connect the headphones, use it to call & answer Health care, at the same time, convenient, fashion 24 hours record the movements of the wearer, record the mileage, steps; Sleeping Management; Synchro Tokimeki; Step Gauge Management; Compass; Intelligent anti-theft; Built-in heart rate monitoring Shortcut NFC (Short-range wireless communication technology) Pairing Shortcut, intelligent identification; NFC is a short-range high-frequency radio technology, in 13.56MHz Frequency operation within 20 cm distance. The transmission speed 106 Kbit / sec, 212 Kbit / s or 424 Kbit /sec three. Between you and me, more secure, more intimate ... 85% of the runners confirmed that the heart rate monitor can be very good to improve their training results, ensure the security of movement and improve efficiency; Perfectly compatible with all the OS The best health monitoring, slimming products for you Power saving: Built-in 260mAH polymer battery, more durable and more secure! Charging can be filled with two hours