Longet Fitness Tracker M4 Blood Pressure Waterproof Smart Bracelet Call Reminder Calories Smart Band Sport Watch for iOS in Smart Wristbands from Consumer Electronics

Longet Fitness Tracker M4 Blood Pressure Waterproof Smart Bracelet Call Reminder Calories Smart Band Sport Watch for iOS in Smart Wristbands from Consumer Electronics
Longet Fitness Tracker M4 Blood Pressure Waterproof Smart Bracelet Call Reminder Calories Smart Band Sport Watch for iOS in Smart Wristbands from Consumer Electronics
Longet Fitness Tracker M4 Blood Pressure Waterproof Smart Bracelet Call Reminder Calories Smart Band Sport Watch for iOS in Smart Wristbands from Consumer Electronics
Longet Fitness Tracker M4 Blood Pressure Waterproof Smart Bracelet Call Reminder Calories Smart Band Sport Watch for iOS in Smart Wristbands from Consumer Electronics
Longet Fitness Tracker M4 Blood Pressure Waterproof Smart Bracelet Call Reminder Calories Smart Band Sport Watch for iOS in Smart Wristbands from Consumer Electronics
Longet Fitness Tracker M4 Blood Pressure Waterproof Smart Bracelet Call Reminder Calories Smart Band Sport Watch for iOS in Smart Wristbands from Consumer Electronics

Product Specification

Function: Blood Pressure

Function: Passometer

Function: Sleep Tracker

Function: Fitness Tracker

Function: Heart Rate Tracker

Function: Social Media Notifications

Function: Alarm Clock

Function: Message Reminder

Function: Call Reminder

Language: English

Compatibility: All Compatible

Touch Screen: No

Waterproof Grade: Life Waterproof

Band Material: Silica

Screen Type: Color LCD

Application Age Group: Adult

Style: Sport

Model: M4

Screen Style: Rectangle/Square-shape

Case Material: Alloy

Band Detachable: Yes

Brand Name: LONGET

Colors: Black,Red,Blue,Pink

Screen: 0.96 inch color screen

Charging time: 1.5-2 hours

Systerm: Android 4.4 above, iOS 8.4 above

Strap size: 250mm*19mm*2mm

for: Sport,Running,Climbing,Biking,

Charging method: USB in-line charging

Type2: Bluetooth Smart Bracelet for Sport

Function2: Heart Rate Monitor,Step,Call Reminder

Type3: Fashion Sport Men Watch for iPhone

Type: bluetooth Sport HR Smart Band

Function: Sleep Monitor,Calories,Take Photo

Type4: Men Amart Watch for sport

Type5: Bluetooth Fitness Tracker for iPhone Android

Type6: Sport Smart Bracelet new 2019

Type7: Fashion Blood Pressure Smart Band for IOS

Description:

Longet Fitness Tracker M4 Blood Pressure Waterproof Smart Bracelet Call Reminder Calories Smart Band Sport Fitness Watch for iOS Free Shipping Supportdropshiping 

Please note that you can purchase the strap of the M4 watch, please open this link——M4 strap 

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Please note:

1.This bracelet does not require a charger and has a USB plug
2.You can't put it in water and can't swim with it The bracelet can't touch the hot water because the hot water has water vapor.
 
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
-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)
 
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.
 
BT version:Bluetooth4.1
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
 
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".
 
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Commetns vunytovuvuji.tk :
Very good thank you very much for the award

Order came but slow shipping almost one month was my parcel to me

I'm very satisfied

Nice watch, works perfectly

I have the product extracted with giveaways. Seller communicates quickly and neatly. Watch today may receive. Watch looks neat looking and was well packed. It works well and is linked to my phone. User Manual is clear and within a half hour I had everything set. I will later another update places. Thanks seller!!

The watch has not yet been checked, i will write later, the delivery was fast!

Everything perfect very nice to the touch and good quality.

The rose is not the same as the photo, plus it does not bring charger or explanations

ok

Bien

Order received. No marriage. Packing is good. Delivery 3 weeks. Everything works. Thank you to the seller. Seller and shop recommend.

Thank you very much for the fast delivery, everything works!!!

That's...

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