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Original! DFit D21 Heart Rate Monitor Waterproof Swim Smart Android and iOS


Original! DFit D21 Heart Rate Monitor Smartband Waterproof Swim Smart Band Bracelet Health Fitness Tracker for Android and iOS


Product Specifications:


Main Chipset NRF51822
Sensor Triaxial Gravity Sensor
Languages Chinese, English
OS Android4.4 or higher, iOS 7.0 or higher
LCD Pixels 0.66" 64*48
BT Version Bluetooth 4.0
BT Connection Distance 8-12m
Battery Capacity: 80mAh
Standby Time 7 days
Charging Electric Current 200mA
Charging Type: Touching Point Charging(Clip Charger)
Average Working Current 6mAh
Average Standby Current: Less than 40uA
Working Voltage: 3.7V
Working Temperature: -20~70
Woriking Humidity 5%~95% non-congealable
Dimension 23.7*12.2*(164~232mm)
Colors: Black, Pink, White, Purple
Main Body Material PC
Watchband Material Silica Gel
Net Weight 28g
Waterproof Grade IPX65


Product Functions List:


Time Display Support
Date Display Support
Steps Display Support
Distance Display Support
Calorie Consuming Display Support
Calling Reminder Support
Message Reminder Support
Sitting Alert Support
Photo-taking Control Not Support
Music Control Not Support
Sleeping Monitoring Support
Bluetooth Connect Support
Battery-charging Protection Support
Keypad Not Support
Anti-lost of Phone Not Support
Heart Rate Monitoring Support


Precise heart rate test smart bracelet for your health.

Multiple functions: heart rate monitor, waterproof, touch operation, pedometer, sleep monitor, sms reminder, call reminder, fast charging.

Accurately measure heart rate by green light sensor.

Built-in NFC for easy life.

Automatically turn on screen to check time when you rotate your wrist.

True waterproof, you can take shower or swim with it.



Remind you when SMS or calls come.

Reliable sports assistant.

More features: quick charging, long standby time, big battery volume.

Soft and comfortable silicone gel wristband.

It's compatible to both Android and iOS smartphones with English App.

Four different colors wristband for your personal choice.

Real life photo.


Real life photo.