SPECIFICATIONS Brand Name: TWISTER.CK Category: Smart Watches System: Android OS System: IOS Function: Passometer Function: fitness tracker Function: sleep tracker Function: Mood Tracker Function: REMOTE CONTROL Function: Push Message Function: Speed Measurement Function: Attemper Function: Heart Rate Tracker Function: Interactive Music Function: 24 hour instruction RAM: 128MB SIM Card Available: No Type: On Wrist Voice assistant built-in: No Language: English Network Mode: None Metrics measured: Heart Rate Monitor Bluetooth-compatible Version: 5.0 GPS: Yes Multiple Dials: No Battery Capacity: 300-450mah Mechanism: No Origin: Mainland China Compatibility: All Compatible ROM: 128MB Rear Camera: None Activity Tracked: Steps Tracker Waterproof Grade: Life Waterproof Touch Screen: YES Certification: NONE Choice: yes semi_Choice: yes Description: Name: Smart Watch Product Size: 47.8 x 13.5mm; Strap Specification: 22mm silicone strap (removable and replaceable); Product Weight: 59g; Waterproof Class: IP67; Use Time: 5-7 days (depending on the use scenario); Equipped with Smartphone System: Compatible for Android 5.1 or IOS 8.2 or later; support Bluetooth-Compatible 5.0BLE system APP Name: FitCloudPro; CPU: Realtek8763EWE; RAM: 578KB; ROM: 640KB; Plug-in flash: 128Mb; Heart Rate Chip: HX3605; Accelerometer: STK8321; Bluetooth-Compatible: BLE5.0; Display: 1.46" 360 x 360 IPS; Physical Button: 2 (with coder); Touch: Full screen touch; Battery: 450mAh polymer battery; Charging Mode: USB magnetic charging; Built-in Dial: built-in 5 dial, support custom dial and download dial; Basic Functions: Data, sports, sports records, weather, information, women, music, Alipay, sidebar, stopwatch, timer, alarm clock, payment code, business card, calendar, calculator, search phone, camera; Bluetooth-Compatible Call Connection: connect once; Health Management: Exercise monitoring, sleep monitoring, heart rate monitoring, blood pressure monitoring, respiratory exercise; Sports Mode: 9 sports modes on the watch, mass sports mode on the APP; Calls: common contacts, call records, voice assistant; Wechat Activity: Synchronize the watch's movement steps to the wechat ranking; Message Alerts: Phone, Message, compatible for wechat, QQ, WhatsApp, Line, Facebook, Facebook messenger, Kaokao, Twitter, Skype; Firmware Update: Watch firmware can be upgraded over the air through the APP; Watch Languages: 24 languages (Simplified Chinese, Traditional Chinese, English, German, Russian, Spanish, Portuguese, French, Japanese, Arabic, Dutch, Italian, Czech, Greek, Hebrew, Indonesian, Malay, Polish, Thai, Vietnamese, Finnish, Romanian, Turkish, Croatian) APP Terminal Languages: 24 languages (Simplified Chinese, Traditional Chinese, English, German, Russian, Spanish, Portuguese, French, Japanese, Arabic, Dutch, Italian, Czech, Greek, Hebrew, Indonesian, Malay, Polish, Thai, Vietnamese, Finnish, Romanian, Turkish, Croatian); Packing list: 1 x smart watch 1 x USB cable 1 x manual 1 x packing box Note: There may be color difference due to different computers or smartphones, please forgive me!