Smart Watch Pink Wristband Smartphone Compatible for Android Apple iOS Device Features: GSM 850/900/1800/1900 MHz, Single Micro SIM Card Bluetooth Dialer, Call Reminder, Bluetooth Call Bluetooth SMS / IM Message Notified 1.54" TFT LCD Touch Screen, 240*240 pixels Anti-loss Technology Pedometer, Sleep Monitor, Sedentary Reminder Audio and Video Player Calendar (Synchronizable) Specification: CPU: MTK6260A AMR7 Network and Connectivity: SIM Card: Single SIM Card (Micro SIM Card) Can be as a phone Frequency: GSM 850/900/1800/1900 MHz Bluetooth: Bluetooth 3.0 Storage: RAM 128M, ROM 64M; External memory: Support TF card up to 32GB Media: Music/video: Support Hand-writing: Support Picture Format: JPEG, GIF, BMP, PNG Music Format: MP3, WAV Video Format: MP4 Battery Capacity(mAh): 380 mah Charging Time: 3 hours Stand-by time: 120 hours Talk time: 2-3 hours Material: Glass and Acrylic Dimensions / WxDxH: 43.5*40*9.8mm Net Weight(kg): 0.078 Packing List: 1 * Smart Watch 1 * Manual 1 * Charging CableItem SpecificationFunction: Passometer, Sleep Tracker, Message Reminder, Call Reminder, Answer Call, Dial Call, Remote Control, Push Message.Compatibility: All Android and iOS Mobile Phone and Android Tablet PC. Android Mobile Phone: Samsung, HTC, Sony, LG, HUAWEI, ZTE, OPPO, XIAOMI, and so on. iOS Mobile Phone: iPhone 6 / 6S, iPhone 6 / 6S plus, iPhone 5 / SE, iPhone 5s , iPhone 4, iPhone 4s ect.buyirectional anti loss: Anti lost remind buyirectional search. Entertainment: Video Recording. MP3 local playback; Bluetooth music playing.You can use it with or without smartphone. Install GSM 2G SIM card, it can be use as a phone. Please make sure you have a postpaid sim card, GSM 850/900/1800/1900 MHz, Single Micro SIM Card.Please search "Padgene" for more choice