Specification:Material: Steel + Siliconscreen size: 1.44inch touch screenscreen resolution: 128*128battery: built-in 230mAH lithium-ion batteryCPU: MTK6260-ARM7interface: USB 3.0charging time: 2-3hourstalking time: 6 hoursstandby time: 168 hoursphone book: 1500bluetooth transmitting: about15mlanguage: English、 French、 Spanish、 Portuguese、 Korean、 Italian、 German、 Indonesian、 Finnish、 Thai、 Turkish、 Russian、 Arabic、 Swedish etc.wrist strap size: 16cm-23cmFunction:bluetoothphonebookmessagingcall logmusicnotificationremote capture photossettingsanti-lostpower savingringtonebarometeraltimeterpedometerstopwatchalarmFeatures:Time/Date/Week/Battery state displayRinging reminder when you receive a call (after Bluetooth paring)Ringing reminder once your mobile phone disconnectedDisplay the number or name of incoming calls(after Bluetooth paring)Answer or Dial calls from watch(after Bluetooth paring)Support hands-free calls、 phone book (after Bluetooth paring)Play the music in your phone(after Bluetooth paring)Sync call history(after Bluetooth paring)Anti-lost alarm function: When cellphone left watch alarm automatically、 after a certain distance to avoid lose the phones (after Bluetooth paring)Ring reminder when your smart phone receive a message (including SMS、Wechat、 Facebook、 Twitter、 WhatsApp、 Skype、 and so on. Only for android phone. you need to download apk)Sync SMS(only for android phone、 you need download apk)Remote taking photo function: You can control your cellphone to take photo from the watch.(only for android phone and you need to download apk)Package includes:1 * smart watch1 * manual1 * USB cable