Smart sports bracelet

Smart sports bracelet at a glance

The F21 smart sports bracelet is a Bluetooth wristband for everyday activity, sleep and health tracking. It pairs with the companion app on iOS 8.0 or above and Android 4.4 or above, and runs on a 100 mAh polymer lithium-ion battery.

Main functions

• Heart rate monitoring
• Blood pressure monitoring
• Pedometer with distance and calorie tracking
• Sleep monitoring
• Stopwatch and countdown
• Call reminder showing caller number or name
• Information, alarm, anti-lost and sedentary reminders
• Female physiology reminders
• Remote photo taking
• Wrist-up screen wake

Hardware and sensors

• Master: nRF 52832
• G-sensor: KXTJ3-1057
• Heart rate sensor: Everlight PD70-01C-TR7
• Vibration reminder: motor vibration
• Waterproof level: IP68
• Connection: Bluetooth BLE 4.0
• Display type: TFT

Size, materials and weight

• Host: 47 x 24 x 13 mm
• Whole machine: 260 x 24 x 13 mm
• Appearance size: 154 x 88 x 31 mm
• Product weight: 30 g
• Strap material: silicone strap
• Materials: plastic, glass
• Packaging: paper box

Controls and colours

Other operations include single touch control and lifting your wrist to brighten the screen. Available colours: black gray, black red and black green.

App and compatibility

Product model F21. App operating system: iOS 8.0 or above and Android 4.4 or above.

Battery and charging

• Battery: polymer lithium-ion battery, 100 mAh
• Standby time: 7-10 days
• Charging method: magnetic charging cable
• Charging time: about 2 hours

Supported languages

Simplified Chinese, Traditional Chinese, English, German, Russian, Japanese, French, Korean, Portuguese, Spanish, Chinese, Italian, Persian and Vietnamese.

Product images