Function:Sleep Tracker

Function:Message Reminder

Function:Call Reminder

Function:Blood Pressure

Function:Alarm Clock

Function:Social Media Notifications

Function:Heart Rate Tracker

Function:Activity Tracker

Waterproof Grade:Life Waterproof

Compatibility:All Compatible

Language:English

Touch Screen:No

Screen Type:Color LCD

Band Material:Silica

Band Detachable:Yes

Case Material:ooo

Model:M4 smart bracelet

Application Age Group:Adult

Style:Sport

Screen Style:Rectangle/Square-shape

Colors:black,red,blue,pink,

Battery:90Ah

Screen:0.96 inch color screen

Charging time:1.5-2 hours

CPU:NRF52832

Systerm:Android 4.4 above, iOS 8.4 above

Strap size:about  250mm*19mm*2mm

for:Sport,Running,Climbing,Biking

Charging method:USB in-line charging

Function:heart rate monitor ,blood pressure ,call reminder

Type:bluetooth fitness watch for sport

Type2:sport smart bracelet for iPhone xiaomi

Type3:heart rate monitor fitness band

Type4:call reminder smart wristband for iOS Android

processing time 3-7 business days

estimated delivery 7-40 business days

Lerbyee Smart Bracelet M4 real-time Heart Rate Monitor Nrf52832 Fitness Tracker Watch Color Screen Call Reminder Wristband Blood Pressure Activity Tracker New Free Shipping 

Please note:

1.This bracelet does not require a charger and has a USB plug

2.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)

3.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.

ღ MULTIFUNCATION BLUETOOTH SMART WATCH -Pedometer, Calories, Distance ,Heart Rate Monitor, Blood pressure ,Sleep quality measurement, Call reminder, Alarm clock,Search bracelet and so on, these amazing features are available, do not hesitate; new App wearfit  is more comprehensive,  inside newest chip more stable faster and  ,Besides, it is with high quality comfortable and fashion strap.

ღ ANDROID AND IOS PHONES COMPATIBLE - This smart watch is compatible with all Bluetooth enabled smartphones including Android and IOS phones. IOS phones such as iPhone X/8/8 Plus/7/7 Plus/6/6 Plus/6s; Android phones such as Samsung Galaxy S8/S8 Plus/S7/ S7 Edge/S6/S6 Edge/S5/S4/S3, iphone 6 or above ,Samsung Note 5/4/3/2, SONY, HTC, Huawei, Xiaomi, ZTE, Lenovo, OPPO,LG smart phones. not support 5/5s/SE

ღ DURABLE AND COMFORTABLE WATERPROOF SMART WATCH - Precision laminating process,Anti-sweat Nano TPU85 material watch strap, very light-weighted to wear, and the soft watch strap is comfortable to wear. Unique waterproof design, good for outdoor activity. 

ღ   Simple operation: Flip your wrist and the screen will be bright. Shake your arm and you can take photos, so that the self-portraits more conveniently. Set this function manually by APP.

ღ SMART GIFT FOR YOU,YOUR LOVERS AND YOUR FAMILY - This fashion and multifunctional smart watch,very easy and durable to use, it’s suitable for any age people even your children and the elderly. We will offer you Lifetime Warranty of our Bluetooth smart watch, so just purchase it without any worries. Our Bluetooth smartwatch is a good gift for you,your family and your friends!