Xiaomi Mi Band 4

Fitness trackers / Built-in data readout

The Xiaomi Mi Band 4 is a band based fitness tracker with a 1 inch color touchscreen AMOLED display, real-time heart rate monitor, step counting, sleep tracking and calories burned.

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CR Expert Take

How did it perform in our expert lab testing?

What goes into the Overall Score?

Ratings

EXPERT LAB TESTS

Ease of use

/ 5

Step count accuracy

/ 5

Heart-rate monitor accuracy

/ 5

Versatility

/ 5

Ease of interaction

/ 5

Readability in bright light

/ 5

Readability in low light

/ 5

Ease of pairing

/ 5

Water resistance

/ 5

Detailed Test Results

Overall this model was somewhat easy to use, did not do a good job for counting steps, and poor at measuring heart-rate accuracy. With recent version iPhones, our experts found it somewhat difficult to pair, somewhat easy to synch, somewhat easy to interact with, and likewise for recent version Android phones, somewhat difficult to pair, somewhat easy to synch, and somewhat easy to interact with. It is difficult to attach to the body, somewhat easy to recharge the battery, In our water immersion test it passed the manufacturer's claim of 164 feet for 10 minutes.

About

The Xiaomi Mi Band 4 is a band based fitness tracker with a 1 inch color touchscreen AMOLED display, real-time heart rate monitor, steps, sleep tracking, calories estimation, and connected GPS. The manufacturer claims a battery life of 20 days. It is available in one size with adjustable strap sizes. It is available in colors: black, pink, red maroon, blue, and replaceable bands come in more than ten colors. It has the following sensors: optical heart-rate, 3-axis accelerometer, 3-axis gyroscope, and capacitive proximity. It has notifications for calls, texts, emails. It includes inactivity alerts which remind you to move if you are sitting for a long time. It has a find my phone feature. It can control playback of music from your smartphone. The Xiaomi Mi Band 4 has an easy to read bright AMOLED color touchscreen display, it has swimming with ( distance, lap time, calories and pace), a multitude of useful third party apps, and customizable watch faces with many to choose from. For charging you have to remove the watch pod from its strap and place it into a cradle that has a very short 6-inch USB cable. It has strong vibration so you'll never miss an alert, is small, thin, light-weight, and comfortable to wear. Included accessories: quick start manual and charger. Its dimensions are 0.8 x 0.5 inches (width/thickness) and it weighs 0.8 ounces.

Features & Specs

Features

Activity results read from device

Yes

Displays time

Yes

Touch screen

Yes

Color display

Yes

Display type

color touchscreen AMOLED

Backlight

Real-time heart-rate monitor

Yes

Heart-rate monitor type

Active

Heart-rate monitor requires chest strap

Step counting

Yes

Inactivity alerts

Yes

Multi-sport tracking

treadmill, outdoor running, cycling, walking, pool swimming, and exercise

Sensor types

optical heart-rate, 3-axis accelerometer, 3-axis gyroscope, capacitive proximity

WiFi

Music controls

Yes

Standalone GPS

Connected GPS

Yes

OS compatibility

iOS, Android

App name

Mi Fit

Battery life (days)

Battery removable

Notifications

Yes

Notification types

calls, texts, emails

Socialization

Socialization features

Sleep tracking

Yes

Sleep sensing method

Auto

Floors climbed

Alarm type

vibration

Included accessories

quick start manual, charger

SpO2 sensor

GPS tracking

Bluetooth USB dongle

Food tracking

Specs

Type

band

Sizes

one size with adjustable strap

Display size (in.)

Width

Depth

Weight (oz.)

0.8

Warranty (yrs.)

Dimensions (WxD)

0.8 x 0.5

Color

Price & Shop

Fitness trackers

Xiaomi Mi Band 4

CR Expert Take

What goes into the Overall Score?

Ratings

EXPERT LAB TESTS

Detailed Test Results

About

Features & Specs

Features & Specs

Features

Specs

Price & Shop

Price & Shop

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