Black Sport Smartwatch Misirun -S21 With Lithium Battery Rechargeable

15-day Battery Life|Full touch color screen|IP67 waterproof| Smart reminder |Health monitoring|7+ sports modes|Suitable for iOS and Android
Regular price $79.99 Sale price $59.99
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12-Month Warranty

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New technology, leading the future

Brand new large touch screen

1.28 inch zinc alloy case, light luxury full touch color screen, 240*240 resolution, retina high-definition large screen brings a clear visual experience on the wrist

Information synchronization smart reminder

Advanced HR sensor will automatically monitor your real-time heart rate all day. You can also intuitively check the heart rate graph and Rest/Average/Max/Min heart rate data in the app. Allowing you to know your health better.

better starts now

for your healthy life

Real-time heart rate detection

It uses a wrist optical heart rate sensor to record the heart rate 24 hours a day. You can browse the daily heart rate changes through the app software and know your health and exercise effect at any time


Sleep monitoring

Record your sleep duration and sleep quality in real time, give a reasonable sleep index, and help improve sleep quality



Waterproof IP67

This watch is IP67 waterproof.You can wear it when you arewashing hands or running inthe rain, even go to swimmingwith it, instead of taking it offfrequently.

The correct way for connecting your watch with your phones.

Misirun - S21Smart watch


Size: L*W*H=43.7*43.7*11.4

Weight: 52.5g

Wristband size: total length 265MM, adjustable length 155-247MM

Chip: HS6620D

APP: Da Fit

Compatible system: Android5.1 (inclusive) and above, IOS8.0 and above)

FLASH memory: RAM128KB ROM32Mb

Type: TFT

Screen size: 1.28 inches

Pixel: 240RGB*240

Touch type: full screen touch

BT: BT4.2

Heart rate: Tianyi Hexin HRS3300

Battery capacity: 170mAh polymer lithium ion

Charging method: magnetic charging cable

Charging time: about 2.5 hours

Life time: 4-6 days of use, 20 days of standby

Waterproof rating: IP67

Software function

Main functions: exercise record (step counting, distance, calorie calculation), exercise

mode, message push, information storage, sleep monitoring, blood pressure

measurement, blood oxygen saturation measurement, stopwatch, camera control, full

font language

APP software functions: steps, sleep, heart rate, blood pressure, blood oxygen

saturation, exercise data recording, dial selection, message push, daily alarm clock,

photo control, weather information, WeChat exercise, find bracelet, time format, do

not disturb mode Time, turn the wrist to brighten the screen

Supported languages: Danish, Ukrainian, Russian, Bulgarian, Bokmal, Norwegian,

Hindi, Indonesian, German, Italian, Czech, Japanese, Pashto, French, Polish, Thai,

Swedish, Simplified Chinese, Traditional Chinese, Finnish, English, Dutch, Portuguese,

Spanish, Vietnamese, Arabic, Korean


Q1: why does the smart braceletautomatically disconnect Bluetooth when the Android screen goesout?

1 >Lock background APP. When the DaFit process is cleared, the smart bracelet will be disconnected fromthe mobile phone.

2 > Set APP self-startup

3> Unrestricted background operation.The Androidmobile phone installed with APP intelligently restrictsthe background operation by default, and App shouldbe set manually without any restriction.

Q2: Why cannot the smart bracelet receive messagepush?

1> Please confirm that you have turned on the switchfor message push at the mobile phone client.

2 > Please confirm that messages can be displayednormally in the mobile phone notification bar. Themessage push on the smart bracelet is completedby reading the message from the mobile phonenotification

The smart bracelet will not receive the message pushif there is no message in the mobile phone notificationbar.

(You need to find notification settings in the mobilephone settings, and turn on the notification switch ofWeChat, QQcall, SMS and mobile phone client).

3> Turn on the mobille phone --- Settings. Enter "Notification useright" on the top search box, re-openDa Fit.

Q3:Why can't take a hot bath with the smart bracelet?

The bath water has a relatively high temperature,and generates a lot of vapor which is in the gas phasewith small molecular radius and can easily infiltrate intothe smart bracelet from the shell gap.

When the temperature drops down, the vapor'will condensate intoliquid-phase droplets which will easily cause the shortcircuit inside the smart bracelet and damage the circuit board and thendamage the smart bracelet.

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