Smartwatch Fitness Tracker For Android or IOS

This smartwatch adopts Bluetooth v3.0 technology to connect your phone. Up to 33ft connection range guarantees low signal delay. It is fully compatible with Android phones and Apple phones on the market.  A super light Bluetooth smartwatch, also your backup smartphone. Using the smartwatch to activity tracker, afternoon sleep reminder, music playing to relax. As you want, you can do everything by the smartwatch. Support make calls by Bluetooth on the smartwatch. When inserting a SIM Card, it Simply takes a GSM Cell phone, you are able to make phone Call / Answer Call / Dial Call directly from the smartwatch.  Specification:  Network standard:GSM,2G 100%brand new and high quality RAM and ROM:128M and 64M Interface: USB  Note:Wearable device monitors human activities through electronic sensors are at the consumer electronics level. It's normal for certain deviation. You should treat data objectively. --Please do not compare to hospital equipment about reading it is NOT a medical device