Lerbyee Fitness Tracker M4 Waterproof IP67 Blood Pressure Smart Bracelet Bluetooth Call Reminder Sport Wristband for iOS Android

Lerbyee Fitness Tracker M4 Waterproof IP67 Blood Pressure Smart Bracelet Bluetooth Call Reminder Sport Wristband for iOS Android

List Price: US $49.98
Price: US $14.99
You save: US $34.99 (70%)
Color:
Sliver Black
Sliver Red
Sliver Blue
Gold Black
Gold Blue
Gold Red
Ships From:
China
United Kingdom
Russian Federation
List Price: US $49.98
Price: US $14.99
You save: US $34.99 (70%)
item specifics
Case Material:
PLASTIC
Band Material:
Silica
Function:
Blood Pressure,Passometer,Sleep Tracker,Calendar,Heart Rate Tracker,Alarm Clock,Activity Tracker,Fitness Tracker,Social Media Notifications,Message Reminder,Call Reminder
Language:
Russian,Portuguese,Spanish,English,German,Italian,Japanese,French
Style:
Sport
Waterproof Grade:
Life Waterproof
Screen Type:
Color LCD
Band Detachable:
Yes
Application Age Group:
Adult
Brand Name:
Lerbyee
Touch Screen:
Yes
Model:
M4
Compatibility:
All Compatible
Screen Style:
Rectangle/Square-shape
Color:
Black,Red,Blue
Waterproof:
IP67
Battery:
90Ah
Systerm:
Android 4.4 above, iOS 8.4 above
Standby time:
3 days for daily use
Strap size:
250mm*19mm*2mm
Screen:
0.96 inch color screen
for:
Sport,Running,Climbing,Biking,Swimming
Type:
bluetooth Sport HR Smart Band
Function:
Sleep Monitor,Calories,Take Photo,Steps Counting
Charging time:
1.5-2 hours
Charging method:
USB in-line charging
CPU:
NRF52832
Type2:
Bluetooth Smart Bracelet for Sport
Type3:
Fashion Sport Men Watch for iPhone
Function2:
Heart Rate Monitor,Step,Call Reminder
Product description

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

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.

-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

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
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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