Features Tips: Unlocked for Worldwide use. Please ensure local area network is compatible. Please check with your carrier/provider before purchasing this item. 3G Smartwatch Phone 1.39 inch Android 5.1 MTK6580 1.3GHz Quad Core 2GB RAM 16GB ROM Heart Rate Monitor Pedometer GPS Parameters: Display: 1.39 inch IPS screen CPU: MTK6580 1.3GHz Quad Core System: Android 5.1 RAM+ROM: 2GB RAM + 16GB ROM Bluetooth: 4.0 SIM type: single nano SIM Functions: OTA, GPS, Heart Rate Monitor, Pedometer, Message, Music, Weather, Notification Remind Network: GSM: 850/900/1800/1900MHz WCDMA: 850/1900/2100MHz Basic Information OS: Android 5.1 CPU: MTK6580 Cores: 1.3GHz,Quad Core RAM: 2GB ROM: 16GB External Memory: Not Supported Compatible OS: Android,IOS Network Wireless Connectivity: 3G,Bluetooth,GPS,GSM Network type: GSM+WCDMA Frequency: GSM 850/900/1800/1900MHz WCDMA 850/1900/2100MHz Support 3G : Yes GPS: Yes Bluetooth: Yes Bluetooth Version: V4.0 Display Screen type: OLED Screen size: 1.39 inch IPS: Yes Screen resolution: 400 x 400 Camera type: No camera SIM Card Slot: Single SIM Battery: Built-in 450mAh Li-ion battery Languages: Traditional / Simplified Chinese, Indonesian, Malaysian, Czech, Danish, German, English, Spanish, French, Croatian, Italian, Dutch, Norwegian, Polish, Portuguese, Romanian, Slovenian, Finnish, Swedish, Turkish, Greek, Russian, Ukrainian, Hebrew, Thai, Korean Package Contents 1 x Smart Watch FAQ for 3G Smartwatch Phone Will the watch come with Google play store? It comes with Google play store , you can download and install APK on it. How long the standby time of LEMFO LEM5 Pro? 100 hours. Is there a camera on it? There is no camera on it. Can i connect LEM5 Pro Bluetooth with my iPhone or android phone? Yes, it supports IOS 8 and Android 5.0 or above phone. How much time does LEM5 Pro need to be charged? LEM5 Pro needs to be charged at least 3 hours. Can i change the strap of the smartwatch? No, the strap can't be changed. Why there is no response when pressing the power button? Because when you press the two buttons simultaneously, the machine enters the restore to factory default settings interface. In order to quit this interface the device should be shut down by long-press the power button and then you need to reboot it. Can I download other themes or interfaces to the watch? It only supports built-in themes and interfaces and you cannot download others. What is the difference between inserting the SIM card and not? If you insert the SIM card you can independently use most of its functions without connecting to your cell phone. While if you do not insert the SIM card, some functions will not work.