Optaa Original Mobile Watch Phone with Calling System Supports iOS & Android Device Smartwatch012139 Smartwatch(Black Strap M)

Android Phone/IOS can support all function in the description,you need to download the sync software at Google-play/iTunes(please refer to the manual instruction ).Size: 41x48x12mm. Fish technology: Stainless steel wire drawing. Net weight: 50g. ScreAppearance en Size: 3.91cm CPU: MTK6260A. Display: 3.91cm. TFT HD LCD; Resolution ratio: 240x240 pixel. Bluetooth: Ver.3.0 *Battery Type Li-polymer Battery. Battery: 350mAh. Band (2G): GSM 850/900/1800/1900MHz Single Micro SIM Card 1. Ringing reminder when you receive a call,Ringing reminder once your mobile phone disconnected,Display the number or name of incoming calls 2. Answer or Dial calls from your wrist,Support hands-free calls. 3. Sync Phone book/SMS/call history (only for android phone) 4. Ring reminder when your Android 2.3 or above smart phone receive a message(including Facebook, Twitter, WhatsApp, Skype etc).