Main Features:<br />- Sleep Monitor<br />Record sleep quality and time・ analysis sleep condition according to your data<br />- Remote Camera<br />Take selfie freely after connecting to your phone by Bluetooth・ keep your beautiful moments<br />- Call Reminder<br />Remind you by vibration even in a noisy environment・ not easy to miss any important call<br />- Pedometer<br />Measure your sports data・ including distance・ calories・ steps・ etc.<br /><br />Bluetooth Version: Bluetooth 4.0<br />Bluetooth calling: Phone call reminder<br />Messaging: Message reminder<br />Health tracker: Pedometer・Sleep monitor<br />Remote control function: Remote Camera<br />Alert type: Vibration<br />Screen: OLED<br />Operating mode: Touch Screen<br />Type of battery: Li-polymer Battery<br />Battery Capacty: 40mAh<br />Charging Time: About 2hours<br />Standby time: About 7 days<br />People: Female table・Male table<br />Shape of the dial: Rectangle<br />Case material: ABS<br />Band material: TPU<br />Compatible OS: Android・IOS<br />Compatability: Android 4.3 / iOS 7.0 and above systems<br />Dial size: 3.6 x 1.8 x 1.2 cm / 0.71 x 0.47 inches<br />Band size: 23 x 1.2 cm / 9.06 x 0.47 inches<br />Product size (L x W x H): 23.00 x 1.80 x 1.20 cm / 9.06 x 0.71 x 0.47 inches<br />Package size (L x W x H): 14.80 x 9.50 x 2.10 cm / 5.83 x 3.74 x 0.83 inches<br />Product weight: 0.0140 kg<br />Package weight: 0.0800 kg<br />Package Contents: 1 x U02 Smart Wristband・ 1 x Chinese-English User Manual・ 1 x Charging Cable