System requirements:
Android 4.4 and above, IOS 8.0 and above, support bluetooth 5.0
Bluetooth version:
BLE 5.0
The bluetooth chip:
Realtek RTL8762C
Heart rate chip:
VC31
Bracelet memory:
128M bit flash, 160k byte ram
Screen display:
1.28-inch IPS color screen 240X240
Battery capacity:
200 mah
Standby time:
About 25 to 30
Working time:
About ten days
Physical buttons:
Full touch and button
Waterproof level:
IP68
The sensor:
Gravity sensor STK8321

APP supported language:
English, Arabic, Czech, Dutch, French, German, Indonesian, Italian, Japanese, Korean, polish, Portuguese, Russian, simplified Chinese, Spanish, Thai, traditional Chinese, Turkish

The basic function:

Time and date display, step count, calories, distance, weather display, stopwatch
Heart rate monitoring (real-time monitoring and timing monitoring -- 2 hours interval), blood pressure and oxygen monitoring and sleep monitoring (sleep duration and sleep quality)
Store 8 historical information, adjust the brightness of the bracelet, check the MAC address of the bracelet, and reset the bracelet
Multiple movement modes (running, cycling, swimming, tennis, rope skipping, table tennis, badminton) GPS movement track function
The first interface of the bracelet can be switched with the UI of the massive dial.

Features:

WeChat sports access, sports goal setting, fitness information sharingFeatures WeChat sports access, sports goal setting, fitness information sharing Weather, smart alarm clock, raise the hand to light the screen, light the screen time, find the phone, find the bracelet, reject incoming calls, take photos with shake, do not disturb mode (do not disturb the time setting, turn off the bracelet vibration, turn off the information reminder)

APP Tefiti:

SUOTA function, upgrade the bracelet firmware through APK/APP to automatically synchronize data to APK/APP, historical record query, APP help: general problem solving

Android and IOS app sync: Tefiti alert: (IOS system searches the apple store for Tefiti to download and install; Android systemin Google store search Tefiti download and install)