Model : i5sShape: watch typeScreen size: 2.2Network standard: GSMCamera pixels: less than 5 millionMemory card : Support memory cardStandby time: 72 (h)Body color: black, white, goldhe main parameters:CPU: MTK2502CProduct size: 58*39.3*11.5mmProduct net weight: 44gMemory: 64+128MBSIM card: support GSM 2G/4 frequency dual card dual standby (mobile, Unicom) 850/900/1800/1900SD memory card: supports up to 32GB expansionDisplay: 2.2ips, 4:3 240*320Battery capacity: 500mAhBluetooth version: 4.0Interface style: 6 squaresLanguage: Chinese-English / Multi-language Main functions: alarm clock, anti-lost alarm, calendar, recording, MP3, driving record, Bluetooth music, photo recording, remote photography, step counting function, sleep monitoring, sedentary reminder, drinking reminder, e-book, calculator, voice king , stopwatch, facebook, twitter, whatsapp Tip: Support mobile and Unicom small cards, does not support telecom cards.