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M4 Waterproof Sport Smart Watch Health Fitness Activity Tracker Wrist Band Bracelet

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1.SMS, information, call reminders.

2.Bluetooth synchronization.

3.Data synchronization does not require cable.

4.Remote camera, take photos by phone through remote control of the wristband.

5.Activity tracker, record your daily activity: steps, distance, time, calories; check and share your data anytime.

6.Anti-lost, the wristband will remind you with vibration when your phone is 5m away from you.

7.When the Bluetooth is disconnected or the phone is out of the Bluetooth distance, the watch will alert you.

8.Sleep monitor, check sleep trend chart to view your sleep time and quality.

9.Sedentary reminder, set it to remind you to walk or exercise after a long time sit.

10.IP67 Waterproof, smart bracelet from water (Not for swimming or taking a shower).

11.Blood pressure, Spo2, Heart rate monitor

12.USB charging cable




Device model: M4 heart rate bracelet

Bluetooth: 4.0

Battery: 90mA Polymer Lithium-ion

Charging Time: 2 hour  Using Time:about 7 days  Standby Time: about 15 days

Waterproof: Life Waterproof

Compatible system: for IOS8.0 and above,for Android4.4 and above

Synchronization Range: 3m(theoretical rang is 10m without any interference)

Main functions: heart rate monitoring, step counting, calorie burning, distance, RTC display, automatic sleep monitoring, call reminder, information push, alarm reminder, anti-lost, remote control, etc.

Waterproof and dustproof: sweatproof, rainproof, splashproof

Display screen size: 0.96 inches

Screen type: TFT

Connection parameters: Bluetooth Low-power Bluetooth 4.0 synchronization

Other parameters: appearance material TPU

Product net weight: 22g

Product color: black, blue, red

Other features: touch screen: full touch screen

Control mode: button switch

Data Storage: Record 7 days of detailed exercise data

Battery type: polymer lithium battery

Charging method: USB charging cable


Packing list:


1* m4 smart bracelet

1* charging cable

1* Instruction manual




Customer reviews

4.3 out of 5
Average rating based on 3 reviews

Recommendation for purchase


Based on 5 recommendations

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Most positive
06/19/2020, 19:11
The clock is very good. Everything corresponds to the description. The goods came whole, the box is very crumpled.
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4 out of 5
Everything works. Charging included. Through the app easily configured.
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4 out of 5
Barbaric!. Arrived faster than expected.
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5 out of 5
The clock is very good. Everything corresponds to the description. The goods came whole, the box is very crumpled.
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