QS40 1.39 inch BT5.2 Smart Sport Watch, Support Bluetooth Call / Sleep / Blood Oxygen / Temperatu...

General specifications:
1. Product size: 44.7x10.5mm
2. Case material: Zinc alloy, PC+ABS
3. Strap material: silicone strap
4. Product weight: 57g
5. Waterproof level: IP67
6. Battery life: 5-7 days (depending on usage scenarios)
7. Charging time: Less than or equal to 2H
8. Compatible with smartphone systems: Android 4.4 or IOS 9.0 or above systems that support Bluetooth 5.2 BLE
9. Watch firmware language: Chinese, English, German, Russian, Spanish, Portuguese, French, Japanese, Italian, Polish
10. APP language: Russian, Indonesian, German, Italian, Czech, Japanese, French, Polish, Simplified Chinese, Traditional Chinese, English, Portuguese, Spanish, Arabic, Korean

Hardware Configuration:
1. MCU: RTL8763EWE
2. Battery: 260mAh
3. APP: Fit Cloud Pro
4. Flash: 128Mb
5. Heart rate chip: LC09A
6. Bluetooth: BLE5.2
7. Display: 1.39 inch, 360x360 TFT display
8. Physical buttons: 2
9. Touch: Full screen touch

Software configuration:
1. Built-in dials: 5 built-in dials, supports custom dials
2. Basic functions: breathing training, respiration rate, female menstrual cycle, state, Audio, call records, incoming call/answer/rejection, music, message push, alarm clock, Turn your wrist to brighten the screen, backhand screen off, Do Not Disturb Mode, Shake to take a photo, find phone, Step count, countdown, stopwatch
3. Bluetooth call connection: Connect 1 time
4. Health management: Sleep monitoring, heart rate, blood pressure, Blood oxygen, breathing training, Sedentary reminder
5. Sports modes: 8 sports modes