Fitness Tracker M4 Heart Rate Monitor Waterproof

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 Fitness Tracker M4 Heart Rate Monitor Waterproof Smart Bracelet Bluetooth Call Reminder Sport Wristband Sleep Monitor New Gifts for iOS Android

Please note: This bracelet does not require a charger and has a USB plug Main Features: – Bluetooth Synchronization With Bluetooth 4.1, this smart bracelet is available for smartphones with Bluetooth function – Professional 24H-continuous Heart Rate Detection Whether you are resting or doing sports, detect your heart rate accurately – Intelligent Anti-lost Watch will send an alarm after leaving the mobile phone in a certain distance, no need to worry about losing your phone – Sport Monitor This smart bracelet can record steps, calories and distance, so you can know your sports data,adjust your exercise program and live a healthier life – Sleep Monitor Accurately monitor total effective sleeping time and motion time every night, helping you develop good living habits – Sedentary Reminder Develop scientific habits and effectively resist sub-health Function : MAIN FUNCTION- 24H-continuous Heart Rate/Pedometer/Distance/Calories/Sleep Monitor/Sedentary Remind/Smart Photograph/Search Handset/Time/Color Screen display/Incoming call remind/Message Remind/Whatsapp Remind/Facebook Remind, etc. Key Specifications – Bluetooth 4.1. Supports IOS 8.4 or above ; Android 4.4 or above (Download APP from Apple Store or Google Play. Smart phone only, not for PC or Tablet). In addition to the iPhone5 series High quality polymer rechargeable battery guarantees long battery life Bracelet language– Sync with your phone language OR English. IP67 Waterproof and sweat-proof,but do not use in hot water. BT version:Bluetooth4.1 Waterproof:IP67 System:Android 4.4 and above,IOS8.4 and above Screen:0.96 inch color LCD Touch Pannel:Suppot Charger:USB Cable G-Seneor:Support Heart rate Sensor:Support Motor:Support Battery:90Ah Function:24H-continuous Heart Rate/Pedometer/Blood Pressure/Distance/Calories/Sleep Monitor/Sedentary Remind/Smart Photograph/Search Handset/Time/Color Screen /Incoming call remind/Message Remind/Whatsapp Remind/Facebook Remind -The bracelet is an international version, only English, but the content of the message will synchronize the language of the phone(Support English, French, German, Japanese, Spanish, Italian, Russian, Czech, Portuguese, Turkish) Package Includes: Smart Bracelet * 1, Multi Language User’s Manual *1,

For the problem that the bracelet can measure the heart rate in things and in the air, the following explanation is made: 1.At present, the mainstream heart rate bracelets on the market adopt the same measurement method. The principle is not complicated, that is, the PMG signal of the radial artery is obtained by the reflective photoelectric measurement method, and the fast Fourier transform is performed on the PPG signal to analyze the frequency domain. To achieve the detection of the human heart rate. To put it simply, it is to use a light to the artery and then reflect it back. Based on the change of the reflected light, the heart rate of the human body is calculated. 2.Due to many factors such as the physiological structure of the human body, the color of muscles and blood, green light is the color with the highest passing rate in the human body. Therefore, the light source of the heart rate sensor uses green light to achieve minimum loss and interference. 3.Heart rate wristband detection focuses on human tissue. Some data is also read for non-human objects. This is a known and normal phenomenon. After the data is based on the principle of light reflection, the heart rate detection will have a reading. This situation cannot be All avoided, so there will be problems with heart rate data in the case of heart rate bracelet (table) in the case of “air test”.


SKU: 32903540291 Category:
Weight 0.1 kg
Dimensions 10 × 10 × 10 cm
Case Material


Band Material






Waterproof Grade

Life Waterproof

Screen Type

Color LCD

Band Detachable


Application Age Group


Brand Name


Touch Screen





All Compatible

Screen Style









Android 4.4 above, iOS 8.4 above

Standby time

3 days for daily use

Strap size



0.96 inch color screen




bluetooth Sport HR Smart Band


Sleep Monitor,Calories,Take Photo,Steps Counting

Charging time

1.5-2 hours

Charging method

USB in-line charging




Bluetooth Smart Bracelet for Sport


Fashion Sport Men Watch for iPhone


Heart Rate Monitor,Step,Call Reminder

Based on 0 reviews

4.9 overall

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  1. L***i

    In khabarovsk came in forty days with a small track tracked. On the bracelet itself only english, the interface in the phone is russian, the battery charge of the device with the constantly turned on bluetooth was enough for 4 days. In general, not a bad toy for your money.


  2. I***k

    Devi’s good. With pressure-everything is strange, works the rest. You can take it.


  3. J***j

    Cool bracelet! Everything works. Charge holds more than a week. Came for two months, i recommend!


  4. S***v

    Good. The pressure measures quite accurately (for what it was taken), which is surprising: the discrepancy with the tonometer is only a few points. In 10-11 days it was necessary to charge once. Minus is not the most convenient application that wearfit2.0.


  5. Customer

    Works, moeny


  6. D***c

    Delivery 2.5 quiet. Cool! The vice does not show. Sercebitty maya will definitely show. Cut the crumbs, calories. Post-use of the phone. The rhythm of sleep, the alarm clock. At 2 quiet at the corridor, swimming in the soul with a godinnik. The two of them hang on to themselves. For your penny norma.


  7. D***d

    My first freebie, a good thing)))


  8. K***k

    Win we freebies 🙂 Headband comes in a small square box. Content was well secured. Headband checks our activity, sleep quality and functions without major problems. Program is used only for odczytywania data picked by armband. Same headband features a high craftsmanship. Band has the whole weight function, którymi in a small range we can control directly on the display. Enables us among others check date and hours display, zmierzenie heart rate, mierzenie count steps, calories burned, pokonanego range, stopwatch and some additional function running at cooperation with smartphone (eg. Notice that someone calling, or information on message). Minus-zaliczanie quantity steps based on intensive swipe hand. Despite all cool gadget in command.


  9. L***v

    It took a long time, but the glory of god all the norms. Work as a clock)))


  10. R***v

    Advantages: time and pulse like shows exactly. Disadvantages: 1. looks worse than the render picture-the border is painted under the glass silver, has a soapy shine. 2. crooked translated app, barely realized that there is no way to put english. 3. do not notify about calls-bad works with miui, the connection with the phone flies and works incorrectly. 4. the pressure undergoes a couple of tens of points. 5. the screen is not touch, if skip the function have to flip all unnecessary functions. 6. no charging cable-there was a gap between the case and the strap when removing for charging. 7. no smart wake function


  11. K***a

    Love it!!!


  12. M***i

    All according to the description. Fast shipping. Recommend


  13. A***a

    I got it Thanks


  14. G***a



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