Mechanism:Yes<br>Origin:CN(Origin)<br>SIM Card Available:No<br>System:Android OS<br>GPS:No<br>Type:On Wrist<br>Compatibility:All Compatible<br>ROM:<128MB<br>Function:Passometer<br>Rear Camera:None<br>Language:English<br>RAM:<128MB<br>Waterproof Grade:Professional Waterproof<br>Multiple Dials:Yes<br>Certification:CE<br>Battery Capacity:120-180mAh<br>Network Mode:None<br>CPU Model:JB39-K1020082701<br>Style:Fashion<br>Movement Type:Electronic<br>Screen Shape:Round<br>Resolution:240*240<br>APP Download Available:Yes<br>Case Material:Alloy<br>CPU Manufacturer:Mediatek<br>Display Size:1.09inch<br>Band Material:Stainless Steel<br>Application Age Group:Adult<br>Battery Detachable:No<br>Band Detachable:Yes<br><br><br>Special Feature<br>1. Compatible with<br>IOS<br>For iPhone 4S/5/5S/5C/6/6 Plus/6S/6S Plus/SE/7/7 Plus with iOS 8.0 and above.<br>2. Compatible<br>with<br>Android 4.4 and above.<br>3. Supports Bluetooth-compatible 4.0 +<br>4. Standby for 30 days, normal use for 5-7 days (based on 140mAh battery)<br>Buying Notes:<br>Watch Language About<br>G31<br>: Chinese, Traditional Chinese, English, German, Korean, Spanish, Japanese, French, Russian, Arabic, Ukrainian, Italy, Portugal<br>Watch Language About I5s:<br>Chinese,<br>French<br>,<br>Russian, English, Spanish, Portuguese, Japanese...Multi-lingual