Key Specifications:1.Color:Black, Pink, silver, gold, black steel, silver steel, gold steel2.APP:dafit3. Waterproof: IP67 waterproof4. ROM+RAM: 16MB FLASH + 160KB RAM, external expansion 128MB FLASH5. The largest external storage capacity: 128MB6. Display type: IPS7. Screen resolution: 240*2408. Screen size: 1.28inches Colorful LCD9. Touch screen: full touch10. Bluetooth version: BT5.111. Battery type: polymer12. Battery capacity: 210mAhFunction:1. Health: Comments (model NO.) Heart rate: Tianyihexin 3300+ dynamic heart rate, blood pressure: by software, blood oxygen: N/A2. Message push (Facebook, twitter, whatsapp, WeChat, QQ, SMS) optional3. Step counter, music player, Bluetooth call, call history, contacts, phone dialing, sedentary reminder (APP), sleep monitoring, remote photo, weather forecast4. Fun games can entertain yourself at any time, so that you can have proper entertainment and relax in your busy work, Add energy to your life5. Language: APP: Support 13 languagesLanguages supported by the bracelet: Chinese, English, Hungry, Japanese, French, Spanish, PortuguesePackage included:1 x Sport Smart Watch AK37