APP: FitCloudPro
Chipset: Bluetrum AB5691
System: Android 5.0 and above; iOS 10.0 and above
Flash memory: RAM 400KB, ROM 128Mb
Screen: IPS TFT
Size: 1.46inch
Resolution: 360*360
Touch IC: CST816D
Bluetooth calling: Bluetrum AB5691
Bluetooth: BLE 5.4
WIFI: None
NFC: Yes
Accelerometer sensors: SC7A20H
Heart rate: HX3602H
GPS: None
Body temperature: None
Battery type: Li-Polymer
Battery Capacity: 3.8V/230mAh/502020
Charging way: Wireless Charging
Waterproof level: IP68
Charging time: 2H
Endurance time: 7 Days
Standby power consumption: minimum 70uA
Charger specification: DC 5V

Major function:

APP Software Functions
Sport: Count steps, calories, distance, movement patterns
Health: Heart rate, blood oxygen, sedentary reminder, sleep monitoring, automatic heart rate monitoring, etc
Intelligent Reminder: Call, SMS, Email, WeChat, QQ, Facebook, Twitter, WhatsApp, LinkedIn, Instagram, Messenger, Snapchat, Line, Kakao Talk, Viber, Skype, Telegram, etc.
Other Functions: Raise the wrist to light the screen, alarm clock reminder, remote control photo, find the phone, etc

Hardware Functions
Sport Data: Distance, calories, steps, real-time heart rate, exercise duration
Sport Mode Selection: Outdoor sports, fitness sports, ball games, water sports, etc.
Others: OTA, Quick Settings Panel (Control Center), Data (step count, distance, calories), heart rate, blood pressure, blood oxygen, sleep, wrist-raising to wake screen, weather, WeChat Sports, messages, reminders (notifications, water intake, sedentary, alarm), women’s health, stopwatch, countdown, find phone, find bracelet, shake to take photo, watch face switching, music control, settings (language selection, brightness adjustment, screen-on duration, vibration settings, factory reset, version information), power-on/off logo, components (function editing), password lock, breathing training, exercise, exercise history, do-not-disturb mode, power-saving mode, low-battery reminder, offline voice, voice assistant (SIRI), call function, frequently used contacts, phone dial pad, split screen (sidebar), scan to connect, business card (making friends), calculator, engineering test mode & shipping mode, calendar, Compass, SOS