Product Dimensions: 47.5*11.9mm
Main Chip: Jieli 7013A
Blood Oxygen Chip: GH3228T
ECG Chip: GH3228T
Heart Rate Chip: GH3228T
Memory: 128Mb
Accelerometer: Supported
Bluetooth Calling: Supported
NFC: Supported
Offline Payment: Supported
Bluetooth: Bluetooth LE 5.3
LCD: 1.56-inch AMOLED, 480*480 resolution
Touch Control: ON-cell
Charging Method: 2PIN magnetic charging
Side Keys: 1 side key + rotating button supported
Waterproof: IP67 waterproof
Battery Capacity: 3.8V 440mAh lithium battery

Major function:

1. 1.56-inch AMOLED HD full-touch screen with 480*480 resolution
2. ECG + PPG (electrode + photoelectric) heart rate testing (generates ECG report, HRV report, and supports ECG playback)
3. Dual-mode Bluetooth calling and smart voice assistant
4. Offline payment, body temperature monitoring, sleep monitoring, heart rate monitoring, and comprehensive health tracking

Software Functions
– Core Health & Communication: Bluetooth calling, ECG, ECG + PPG, multi-risk analysis for ECG diagnosis, body temperature monitoring, incoming call rejection, OTA upgrade
– Flashlight Function: Supported (lighting, SOS, night running alert)
– Daily Utilities: Stopwatch, flashlight, countdown, step counting, calorie calculation, distance tracking, sleep monitoring, sports modes, incoming call reminder, alarm reminder, sedentary reminder, wrist-lift to wake screen, social sharing (WeChat, QQ, Facebook, Twitter), shake to take photos, menstrual cycle tracking
– Sports Modes: 50 modes supported (walking, running, hiking, cycling, rope skipping, basketball, football, etc.)
– Message Reminders: Alerts for calls, SMS, emails, WeChat, QQ, Facebook, Twitter, WhatsApp, LinkedIn, Instagram, Messenger, Snapchat, Line, Kakao Talk, Viber, Skype, Telegram
– Display & Music: 5+2 watch face options (1 for massive watch faces via APP, 1 for custom watch faces), remote music control (pause, previous track, next track for phone player)
– Auxiliary Functions: Dial pad, Siri dialing, find phone, find bracelet, watch face switching
– APP Name: H Band