Features: - This product supports all functions for Android (Passometer, Calendar, Call Sync, Calculator, Clock, Stopwatch, messages, sync instant messages) with the Bluetooth Notice APP (BT) installed. - Bluetooth Dialer, Contacts, Call Reminder, Clock, Anti-loss, Pedometer, Sleep Monitor, Sedentary Reminder, Calendar. - Smart multiligual device with English, Italian, German, Dutch, Spanish, French, Polish, Turkish, Portuguese and Russian installed. - Support music, video, video recording, gravity sensor and handwriting. Picture Format: JPEG, GIF, BMP, PNG. Music Format: MP3, WAV. Video Format: MP4 - Extreme long stand by time for 180 hours. Specifications: - SIM Card: Single SIM Card (Micro SIM Card) - Frequency: 2G GSM/GPRS 850/900/1800/1900 MHz - Bluetooth: 3.0 - Storage: RAM 128M, ROM 64M - External memory: Support TF card up to 16GB - Display: 1.56 inch TFT LCD, 240 x 240 pixels - Camera: 2.0 M - Battery: 380 mAh - Talk Time: 3 Hours - SMS: Support - USB Port: Mini USB 5pin interface - Size: 43.5 x 40 x 11.8 mm - Product Weight: 75g - Color: Black/White/Rosegold Package: 1 x Smart watch 1 x USB charger cable 1 x User guidance or 1 x Smart watches 1 x USB charger cables 1 x User guidances Notice: - Please check the local mobile network carriers for the device's compatibility with 2G. This product does not support wifi. - Please note that functions for iOS are limited. For iOS, the APP does not support synchronization. Only bluetooth connection can be realized. - Please use the smart watch search for mobile phone bluetooth signal to realize bluetooth connection. - The memory card state only can display on PC. - Message function only can be realized after APP synchronization. FAQ: - How to place SIM Card and SD card? Open the back cover, remove the battery, and you will see the card slot. - Unable to switch on? Please make sure the watch is fully charged and press the power button for more than 3 seconds. - Using time too short? Make sure the watch is fully charged (2 hours at least). Please note: With the use of SIM card, the power will run out soon if the signal is poor. - Unable to charge? (1)The battery will be reduce after after few years, please check if the battery works in good condition or not. (2)Change a new charger. (3)Please check the USB interface and try again. - Bad phone call voice? Bad voice may be caused by poor signal. Please find a better place and make sure the phone is not too far away from you. - Unable to recognize SIM card? SIM Card: Single SIM Card (Micro SIM Card), Frequency: 2G - Unable to download APP? There is a possibility that the watch doesn't have enough memory for downloading apps. Please use SD card.