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Xiaomi Mi Band 4 Review | 171 Data compared

Avg. price in UK: ~£35
Avg. price in US: ~$40
Form factor: wristband
Battery life: 20 days
Screen size: 0.95 inch

Xiaomi Mi Band 4 review. Compare 171 technical specifications and user reviews to see how it ranks among fitness trackers and if it is worth buying.

8.0

Excellent

7.7

Very good

9.1

Exceptional

7.6
Swimming
Score components:
28.0%
10
ATM rating
24.0%
4.0
Open-water swim mode
18.0%
10
Waterproof depth rating
15.0%
4.0
GPS
15.0%
9.5
Battery life
8.6
Kids
Score components:
30.0%
9.5
Battery life
25.0%
8.2
Weight
20.0%
10
ATM rating
15.0%
4.8
Screen size
10.0%
10
Price

Best prices in UK

Best rankings

#13 in Best Xiaomi Fitness Trackers
#19 in Best Fitness Trackers for Swimming
#25 in Best Budget Fitness Trackers
#30 in Best Fitness Trackers for Women
#38 in Best Fitness Trackers

Verdict

The Xiaomi Mi Band 4 is a lightweight (22.1g) fitness tracker featuring a vibrant 0.95-inch AMOLED color touchscreen with 120x240 resolution and 400 nits brightness. Key characteristics include 5ATM water resistance, a 6-axis high-precision sensor for tracking six sport modes—including swimming stroke recognition—and a 135mAh battery offering up to 20 days of life. Its main pros are the bright, customizable color display, excellent battery longevity, and improved health metrics like continuous heart rate and sleep monitoring. However, its notable cons include the lack of built-in GPS, requiring a smartphone connection for outdoor route tracking, and a charging cradle that still requires removing the tracker module from the silicone strap.

Technical Specifications of Xiaomi Mi Band 4

Overall score

8.0

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Popularity

What it is: An indicator based on the number of reviews received by the fitness tracker.

When it matters: When you prefer to buy a product chosen and reviewed by many other consumers.

Health

7.1

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Heart rate monitor

What it is: Sensor that measures heart rate in real time.

When it matters: When you care about live heart-rate feedback during training or resting trends outside of workouts.

Importance: HIGH

Resting heart rate

What it is: Measures heart rate while resting.

When it matters: When deeper insight into sleep quality, recovery, or overall readiness matters more than raw numbers alone.

Importance: MEDIUM

Fast/slow heart rate alerts

What it is: Alerts for heart rates that are too fast or too slow.

When it matters: When you want the tracker to warn you about unusual changes instead of only logging them.

Importance: LOW

Irregular heart rate alerts

What it is: Warns of irregular or abnormal heart rhythms.

When it matters: When you want the tracker to warn you about unusual changes instead of only logging them.

Importance: LOW

Blood oxygen sensor

What it is: Sensor that measures blood oxygen saturation.

When it matters: When blood oxygen readings are part of the health picture you want from the device instead of relying on heart rate and step count alone.

Importance: MEDIUM

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Sports & Navigation

8.3

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GPS

What it is: Satellite navigation capability for positioning and tracking.

When it matters: When you train outdoors and want pace, distance, and route tracking without depending completely on your phone.

Importance: LOW

Satellite systems supported

What it is: States which satellite navigation systems the device can use for positioning.

When it matters: When you train outdoors and want stronger positioning, route guidance, and navigation independence from your phone.

Importance: LOW

GNSS bands supported

What it is: Number and type of GNSS frequency bands supported.

When it matters: When you train outdoors and want stronger positioning, route guidance, and navigation independence from your phone.

Importance: LOW

Galileo support

What it is: Supports Galileo satellite system.

When it matters: When you train outdoors and want stronger positioning, route guidance, and navigation independence from your phone.

Importance: LOW

Acquires GPS faster

What it is: Shows whether the tracker includes features that help it lock onto satellite positioning more quickly at the start of an outdoor activity.

When it matters: When you train outdoors and want stronger positioning, route guidance, and navigation independence from your phone.

Importance: LOW

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Smart Features

7.7

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Notifications

What it is: Delivers smartphone notifications on the watch.

When it matters: When getting calls, messages, and app alerts on your wrist saves you from checking your phone constantly.

Importance: MEDIUM

Vibrating alerts

What it is: Provides vibration-based notifications and alerts.

When it matters: When staying reachable from your wrist helps you avoid checking your phone constantly.

Importance: LOW

Call control

What it is: Allows control of phone calls from the device.

When it matters: When staying reachable from your wrist helps you avoid checking your phone constantly.

Importance: LOW

Call answering

What it is: Allows answering calls directly from the device.

When it matters: When staying reachable from your wrist helps you avoid checking your phone constantly.

Importance: LOW

Calendar sync

What it is: Syncs calendar events with the connected device.

When it matters: When staying reachable from your wrist helps you avoid checking your phone constantly.

Importance: LOW

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App & Wellness

9.4

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Activity reports

What it is: Generates summaries and insights from activity data.

When it matters: When you want the app to motivate you with goals, reports, coaching, or progress feedback over time.

Importance: LOW

Goal setting

What it is: Allows setting personal fitness or activity goals.

When it matters: When you want the app to motivate you with goals, reports, coaching, or progress feedback over time.

Importance: LOW

Achievements

What it is: Rewards progress and completed milestones.

When it matters: When you want the app to motivate you with goals, reports, coaching, or progress feedback over time.

Importance: LOW

Inactivity alerts

What it is: Alerts when the user has been inactive for too long.

When it matters: When account rules, app costs, exports, or software flexibility affect whether the ecosystem suits you long term.

Importance: LOW

Coaching

What it is: Provides guided training and workout advice.

When it matters: When you want the app to motivate you with goals, reports, coaching, or progress feedback over time.

Importance: LOW

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Connectivity

7.8

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Bluetooth version

What it is: Version of Bluetooth supported by the device.

When it matters: When wireless stability, pairing quality, and long-term phone compatibility matter more than Bluetooth being a simple checkbox.

Importance: LOW

Good value: >=5.0

Maximum Bluetooth range

What it is: States the maximum Bluetooth connection range supported under normal conditions.

When it matters: When compatibility with your phone, computer, accessories, or wireless setup affects how well the tracker fits into your ecosystem.

Importance: LOW

Good value: >=10 m

NFC

What it is: Supports near-field communication for contactless features.

When it matters: When compatibility with your phone, computer, accessories, or wireless setup affects how well the tracker fits into your ecosystem.

Importance: LOW

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Wi-Fi connectivity

What it is: Connects to wireless internet networks.

When it matters: When the tracker should sync, update, or download data directly without always routing everything through the phone.

Importance: LOW

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Wi-Fi version

What it is: Version of Wi-Fi standard supported.

When it matters: When compatibility with your phone, computer, accessories, or wireless setup affects how well the tracker fits into your ecosystem.

Importance: LOW

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Battery

7.9

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Battery life

What it is: Total time the battery lasts on a full charge.

When it matters: When the tracker needs to last through travel, sleep tracking, long workouts, or several days between charges.

Importance: HIGH

Good value: >5 days

Battery life with GPS on

What it is: Battery duration when GPS tracking is active.

When it matters: When you want fewer charging breaks during travel, longer workouts, sleep tracking, or continuous use.

Importance: LOW

Good value: >=8 hours

N/A

Battery life in training mode

What it is: Battery duration during active training sessions.

When it matters: When you want fewer charging breaks during travel, longer workouts, sleep tracking, or continuous use.

Importance: LOW

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Battery life in power-saving mode

What it is: Battery duration when using power-saving mode.

When it matters: When you want fewer charging breaks during travel, longer workouts, sleep tracking, or continuous use.

Importance: LOW

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Battery capacity

What it is: Energy storage capacity of the battery.

When it matters: When you want rough battery context behind the runtime claim instead of trusting the advertised hours alone.

Importance: MEDIUM

Good value: >=100 mAh

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Display

6.7

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Display

What it is: Main interface showing information and metrics.

When it matters: When easier reading at a glance and better day-to-day screen comfort matter to you.

Importance: LOW

Screen size

What it is: Physical size of the device’s display measured diagonally.

When it matters: When easier reading at a glance and better day-to-day screen comfort matter to you.

Importance: MEDIUM

Display type

What it is: Technology used for the screen, such as AMOLED or LCD.

When it matters: When display technology affects contrast, color quality, power efficiency, or how premium the screen feels.

Importance: MEDIUM

Screen resolution

What it is: Total number of pixels displayed on the screen.

When it matters: When easier reading at a glance and better day-to-day screen comfort matter to you.

Importance: MEDIUM

Pixel density

What it is: Number of pixels per inch determining screen sharpness.

When it matters: When easier reading at a glance and better day-to-day screen comfort matter to you.

Importance: LOW

Good value: >=280 ppi

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Design & Durability

8.5

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Form factor

What it is: Overall physical design and shape.

When it matters: When materials, shape, and build details affect comfort, durability, or how discreet the device feels.

Importance: LOW

wristband

Hybrid design

What it is: Combines analog and digital display elements.

When it matters: When materials, shape, and build details affect comfort, durability, or how discreet the device feels.

Importance: LOW

Designed for kids

What it is: Indicates whether the fitness tracker is explicitly designed for children, with child-focused sizing, branding, safety limits, or kid-oriented activity features.

When it matters: This matters when you want a tracker that is genuinely child-focused rather than just a smaller adult model.

Importance: LOW

Replaceable watch band

What it is: Ability to replace the wristband with other styles.

When it matters: When strap comfort, fit, or the ability to swap bands matters for sport, style, or replacement.

Importance: LOW

Band width

What it is: Width of the strap where it connects to the watch.

When it matters: When strap comfort, fit, or the ability to swap bands matters for sport, style, or replacement.

Importance: LOW

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Xiaomi Mi Band 4 vs the average fitness tracker

Why is Xiaomi Mi Band 4 better than the average fitness tracker?

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10 days longer battery life
Xiaomi Mi Band 4 has a higher battery life than the average fitness tracker (20 days vs 10 days). The average fitness tracker has 10 days of battery life.
What it is: Total time the battery lasts on a full charge.
When it matters: When the tracker needs to last through travel, sleep tracking, long workouts, or several days between charges.
Importance: HIGH
Good value: >5 days
Xiaomi Mi Band 4 has a higher battery life than the average fitness tracker (20 days vs 10 days). The average fitness tracker has 10 days of battery life.20 days vs 10 days
Lower resting heart rate
Xiaomi Mi Band 4 supports Resting heart rate, while the average fitness tracker does not. 48.2% of fitness trackers support Resting heart rate.
Tracks resting heart rate.
What it is: Measures heart rate while resting.
When it matters: When deeper insight into sleep quality, recovery, or overall readiness matters more than raw numbers alone.
Importance: MEDIUM
Xiaomi Mi Band 4 supports Resting heart rate, while the average fitness tracker does not. 48.2% of fitness trackers support Resting heart rate.
Touchscreen
Xiaomi Mi Band 4 has a touchscreen, while the average fitness tracker does not. 43.8% of fitness trackers have a touchscreen.
What it is: Ability of the display to recognize touch input.
When it matters: When smooth touch response and quicker on-screen interaction matter during workouts or daily use.
Importance: LOW
Xiaomi Mi Band 4 has a touchscreen, while the average fitness tracker does not. 43.8% of fitness trackers have a touchscreen.
Swim stroke counter
Xiaomi Mi Band 4 supports swim stroke counting, while the average fitness tracker does not. 21.6% of fitness trackers support swim stroke counting.
What it is: Counts swim strokes during swimming workouts.
When it matters: When swimming metrics and pool or open-water tracking are important to your routine.
Importance: LOW
Xiaomi Mi Band 4 supports swim stroke counting, while the average fitness tracker does not. 21.6% of fitness trackers support swim stroke counting.
Coaching features
Xiaomi Mi Band 4 supports coaching, while the average fitness tracker does not. 32.8% of fitness trackers support coaching.
What it is: Provides guided training and workout advice.
When it matters: When you want the app to motivate you with goals, reports, coaching, or progress feedback over time.
Importance: LOW
Xiaomi Mi Band 4 supports coaching, while the average fitness tracker does not. 32.8% of fitness trackers support coaching.
Phone finder support
Xiaomi Mi Band 4 supports phone finding, while the average fitness tracker does not. 49.5% of fitness trackers support phone finding.
What it is: Helps locate a connected smartphone.
When it matters: When staying reachable from your wrist helps you avoid checking your phone constantly.
Importance: LOW
Xiaomi Mi Band 4 supports phone finding, while the average fitness tracker does not. 49.5% of fitness trackers support phone finding.
Tracks elevation
Xiaomi Mi Band 4 supports elevation tracking, while the average fitness tracker does not. 27.2% of fitness trackers support elevation tracking.
Elevation estimate via connected phone GPS
What it is: Measures elevation gain and loss during activity.
When it matters: When you train outdoors and want stronger positioning, route guidance, and navigation independence from your phone.
Importance: LOW
Xiaomi Mi Band 4 supports elevation tracking, while the average fitness tracker does not. 27.2% of fitness trackers support elevation tracking.
Color display
Xiaomi Mi Band 4 has a color display, while the average fitness tracker does not. 37.9% of fitness trackers have a color display.
What it is: Displays full color visuals.
When it matters: When display technology affects contrast, color quality, power efficiency, or how premium the screen feels.
Importance: LOW
Xiaomi Mi Band 4 has a color display, while the average fitness tracker does not. 37.9% of fitness trackers have a color display.
Lower resting heart rate
Xiaomi Mi Band 4 supports Resting heart rate, while the average fitness tracker does not. 48.2% of fitness trackers support Resting heart rate.
Swim stroke counter
Xiaomi Mi Band 4 supports swim stroke counting, while the average fitness tracker does not. 21.6% of fitness trackers support swim stroke counting.
Tracks elevation
Xiaomi Mi Band 4 supports elevation tracking, while the average fitness tracker does not. 27.2% of fitness trackers support elevation tracking.
Built-in gyroscope
Xiaomi Mi Band 4 has a gyroscope, while the average fitness tracker does not. 26.4% of fitness trackers have a gyroscope.
Built-in route tracker
Xiaomi Mi Band 4 supports route tracking, while the average fitness tracker does not. 49.8% of fitness trackers support route tracking.
10 days longer battery life
Xiaomi Mi Band 4 has a higher battery life than the average fitness tracker (20 days vs 10 days). The average fitness tracker has 10 days of battery life.
22.7% larger battery capacity
Xiaomi Mi Band 4 has a higher battery capacity than the average fitness tracker (135 mAh vs 110 mAh). The average fitness tracker has 110 mAh of battery capacity.
Touchscreen
Xiaomi Mi Band 4 has a touchscreen, while the average fitness tracker does not. 43.8% of fitness trackers have a touchscreen.
Color display
Xiaomi Mi Band 4 has a color display, while the average fitness tracker does not. 37.9% of fitness trackers have a color display.
14.2% higher pixel density
Xiaomi Mi Band 4 has a higher pixel density than the average fitness tracker (282 ppi vs 247 ppi). The average fitness tracker has a pixel density of 247 ppi.
Durable display glass
Xiaomi Mi Band 4 uses more durable display glass than the average fitness tracker (tempered glass vs glass). The average fitness tracker uses glass display glass.
Modern Bluetooth version
Xiaomi Mi Band 4 supports a newer Bluetooth version than the average fitness tracker (5 vs 4.0). The average fitness tracker supports Bluetooth 4.0.
Phone finder support
Xiaomi Mi Band 4 supports phone finding, while the average fitness tracker does not. 49.5% of fitness trackers support phone finding.
Passcode protection
Xiaomi Mi Band 4 supports passcode protection, while the average fitness tracker does not. 17.2% of fitness trackers support passcode protection.
Call control
Xiaomi Mi Band 4 supports call controls, while the average fitness tracker does not. 40.9% of fitness trackers support call controls.
Gesture control
Xiaomi Mi Band 4 supports gesture controls, while the average fitness tracker does not. 40.8% of fitness trackers support gesture controls.
Coaching features
Xiaomi Mi Band 4 supports coaching, while the average fitness tracker does not. 32.8% of fitness trackers support coaching.

Why is Xiaomi Mi Band 4 worse than the average fitness tracker?

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No automatic activity detection
Xiaomi Mi Band 4 does not support automatic activity detection, while the average fitness tracker does. 50.3% of fitness trackers support automatic activity detection.
0.5 hours longer charging time
Xiaomi Mi Band 4 has a higher charging time than the average fitness tracker (2 hours vs 1.5 hours). The average fitness tracker needs 1.5 hours to charge.
Lower screen resolution
Xiaomi Mi Band 4 has a lower screen resolution than the average fitness tracker (120x240 vs 194x368). The average fitness tracker has a screen resolution of 194x368.
11.1% lower screen brightness
Xiaomi Mi Band 4 has a lower screen brightness than the average fitness tracker (400 nits vs 450 nits). The average fitness tracker has screen brightness of 450 nits.
0.09 inch smaller screen size
Xiaomi Mi Band 4 has a lower screen size than the average fitness tracker (1 inch vs 1.04 inch). The average fitness tracker has a screen size of 1.04 inch.
50% smaller internal storage
Xiaomi Mi Band 4 has a lower internal storage than the average fitness tracker (0 GB vs 0.032 GB). The average fitness tracker has 0.032 GB of internal storage.
1.7 mm thicker design
Xiaomi Mi Band 4 is thicker than the average fitness tracker (12.7 mm vs 11 mm). The average fitness tracker has a thickness of 11 mm.
4.92 mm greater height
Xiaomi Mi Band 4 is taller than the average fitness tracker (45.7 mm vs 40.8 mm). The average fitness tracker has a height of 40.8 mm.
10 °C higher minimum operating temperature
Xiaomi Mi Band 4 has a higher minimum operating temperature than the average fitness tracker (-10 °C vs 0 °C). The average fitness tracker supports a minimum operating temperature of 0 °C.
Ads in app
Xiaomi Mi Band 4 shows ads in the app, while the average fitness tracker does not. 50.6% of fitness trackers have an ad-free app.
No automatic activity detection
Xiaomi Mi Band 4 does not support automatic activity detection, while the average fitness tracker does. 50.3% of fitness trackers support automatic activity detection.
What it is: Automatically recognizes and records physical activities.
When it matters: When you want common workouts captured even on days when you forget to start tracking manually.
Importance: MEDIUM
Xiaomi Mi Band 4 does not support automatic activity detection, while the average fitness tracker does. 50.3% of fitness trackers support automatic activity detection.
0.5 hours longer charging time
Xiaomi Mi Band 4 has a higher charging time than the average fitness tracker (2 hours vs 1.5 hours). The average fitness tracker needs 1.5 hours to charge.
What it is: Time required for a full charge.
When it matters: When short charging windows matter and you do not want the tracker off your wrist for too long.
Importance: MEDIUM
Xiaomi Mi Band 4 has a higher charging time than the average fitness tracker (2 hours vs 1.5 hours). The average fitness tracker needs 1.5 hours to charge.2 hours vs 1.5 hours
Lower screen resolution
Xiaomi Mi Band 4 has a lower screen resolution than the average fitness tracker (120x240 vs 194x368). The average fitness tracker has a screen resolution of 194x368.
What it is: Total number of pixels displayed on the screen.
When it matters: When easier reading at a glance and better day-to-day screen comfort matter to you.
Importance: MEDIUM
Xiaomi Mi Band 4 has a lower screen resolution than the average fitness tracker (120x240 vs 194x368). The average fitness tracker has a screen resolution of 194x368.120x240 vs 194x368
11.1% lower screen brightness
Xiaomi Mi Band 4 has a lower screen brightness than the average fitness tracker (400 nits vs 450 nits). The average fitness tracker has screen brightness of 450 nits.
What it is: Maximum brightness output of the screen.
When it matters: When visibility changes often between indoor, outdoor, daytime, and low-light conditions.
Importance: HIGH
Good value: >=450 nits
Xiaomi Mi Band 4 has a lower screen brightness than the average fitness tracker (400 nits vs 450 nits). The average fitness tracker has screen brightness of 450 nits.400 nits vs 450 nits
50% smaller internal storage
Xiaomi Mi Band 4 has a lower internal storage than the average fitness tracker (0 GB vs 0.032 GB). The average fitness tracker has 0.032 GB of internal storage.
What it is: Amount of internal data storage available.
When it matters: When app smoothness, onboard storage, or device-side performance affects your daily experience.
Importance: LOW
Xiaomi Mi Band 4 has a lower internal storage than the average fitness tracker (0 GB vs 0.032 GB). The average fitness tracker has 0.032 GB of internal storage.0.016 GB vs 0.032 GB
0.09 inch smaller screen size
Xiaomi Mi Band 4 has a lower screen size than the average fitness tracker (1 inch vs 1.04 inch). The average fitness tracker has a screen size of 1.04 inch.
What it is: Physical size of the device’s display measured diagonally.
When it matters: When easier reading at a glance and better day-to-day screen comfort matter to you.
Importance: MEDIUM
Xiaomi Mi Band 4 has a lower screen size than the average fitness tracker (1 inch vs 1.04 inch). The average fitness tracker has a screen size of 1.04 inch.0.95 inch vs 1.04 inch
Ads in app
Xiaomi Mi Band 4 shows ads in the app, while the average fitness tracker does not. 50.6% of fitness trackers have an ad-free app.
What it is: Operates without advertisements.
When it matters: When account rules, app costs, exports, or software flexibility affect whether the ecosystem suits you long term.
Importance: LOW
Xiaomi Mi Band 4 shows ads in the app, while the average fitness tracker does not. 50.6% of fitness trackers have an ad-free app.
1.7 mm thicker design
Xiaomi Mi Band 4 is thicker than the average fitness tracker (12.7 mm vs 11 mm). The average fitness tracker has a thickness of 11 mm.
What it is: Total depth of the watch case.
When it matters: When overall size, thickness, or weight affects comfort during all-day wear, sleep, or exercise.
Importance: LOW
Good value: <10 mm
Xiaomi Mi Band 4 is thicker than the average fitness tracker (12.7 mm vs 11 mm). The average fitness tracker has a thickness of 11 mm.12.7 mm vs 11 mm

Design & Durability

Graphic comparison of Xiaomi Mi Band 4 and

Attribute category

Attribute

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Third-party reviews

United Kingdom

(Reviews last updated: Jun 2026)

What customers like about Xiaomi Mi Band 4?

Exceptional value for money with a rich feature set at a budget price point.
Bright, high-resolution AMOLED color display that is easily readable even in direct sunlight.
Long-lasting battery life, typically ranging from 14 to 20 days on a single charge.
Lightweight and comfortable design suitable for 24/7 wear, including sleep.
Water-resistant up to 50 metres (5ATM), making it safe for swimming and showers.
Includes useful smartphone-like features such as music playback control and app notifications.

What customers dislike about Xiaomi Mi Band 4?

Proprietary charging cradle is fiddly, requiring the tracker module to be popped out of the strap.
Accuracy issues with specific metrics, particularly inconsistent heart rate and swim distance tracking.
Software limitations in the Mi Fit app, such as a non-intuitive UI and lack of data export to common apps like Strava.
Inability to multitask; users cannot access other features (like a timer or stopwatch) during an active workout.
Lack of integrated GPS, requiring a tethered connection to a smartphone for accurate location data.
Poor support for emojis and Unicode characters in notifications, which often appear as boxes or question marks.

Expert reviews

androidcoliseum.com

28/08/2019

The Xiaomi Mi Band 4 Review - a good thing getting better

The Xiaomi Mi Band 4 is an affordable, feature-packed alternative to higher-priced fitness trackers, retailing for under $50. It delivers standout features like a bright, colorful 0.95-inch AMOLED screen and an exceptional battery life that easily lasts between 14 and 20 days depending on your settings. Fitness enthusiasts will appreciate the vastly expanded exercise tracking...Read more

wareable.com

31/07/2019

Xiaomi Mi Band 4 review - Wareable

The Xiaomi Mi Band 4 is deemed an untouchable budget fitness tracker, featuring a vibrant AMOLED color touchscreen and improved smartwatch features like music control. It provides reliable daily activity tracking that competes with more expensive alternatives, acting as a significant upgrade in the low-cost wearable market. However, the review notes cons regarding subpar swimming...Read more

techradar.com

23/07/2019

Xiaomi Mi Band 4 review - TechRadar

The Xiaomi Mi Band 4 delivers exceptional value for a budget fitness tracker, introducing a larger 0.95-inch color OLED touch display with up to 400 nits of brightness that greatly improves visibility both indoors and outdoors. The slim, lightweight 21g tracker fits into older Mi Band 3 straps and maintains a user-friendly navigation interface utilizing swipes and taps. It is...Read more

root-nation.com

19/07/2019

Xiaomi Mi Smart Band 4 review Do you need a comparison of these reviews to see how the Mi Band 4 holds up against newer models like the Mi Band 8?

The Root Nation review characterizes the Xiaomi Mi Smart Band 4 as a significant upgrade, highlighting the vibrant 0.95-inch color AMOLED display and 2.5D tempered glass as major pros. Key functionalities praised include built-in music controls, a 6-axis accelerometer for detailed activity tracking, and a long-lasting, 20-day battery life. Conversely, the review notes drawbacks,...Read more

galaxus.de

20/08/2019

Xiaomi Mi Smart Band 4 tested: a temptingly affordable fitness tracker

The Galaxus review of the Xiaomi Mi Smart Band 4 highlights the device as a remarkably low-priced wearable featuring a significantly upgraded, sunlight-readable AMOLED display that handles core health-tracking tasks like sleep and heart rate monitoring. It is praised for its long battery life, secure strap, and ability to track six specific sports, including pool swimming, making it...Read more

pmc.ncbi.nlm.nih.gov

30/01/2022

Is the Xiaomi Mi Band 4 an Accuracy Tool for Measuring... - PMCAre you looking for a specific comparison between the Mi Band 4 and a newer model, or p...

This study evaluates the Xiaomi Mi Band 4 (MB4) as a reasonable and valid low-cost fitness tracker (~25 EUR) for tracking health metrics. The research monitored 46 adult participants (averaging 38.65 years old) across both controlled laboratory and free-living conditions, comparing the device against video recordings, Firstbeat monitors, and Sense Wear monitors. The primary pros...Read more

androidauthority.com

30/11/2021

Xiaomi Mi Band 4 review: A solid, cheap fitness tracker

The Xiaomi Mi Band 4 stands out as a highly accurate and budget-friendly fitness tracker that significantly improves upon its predecessor with a vibrant, 0.95-inch RGB AMOLED touchscreen display that is easily readable in direct sunlight. It delivers robust and reliable tracking for core metrics like sleep, steps, and daily calories, while boasting an impressive 20-day battery life...Read more

trustedreviews.com

02/12/2019

Xiaomi Mi Band 4 Review - Trusted Reviews

The Xiaomi Mi Band 4 is highlighted as a high-value budget fitness tracker featuring a bright 0.95-inch AMOLED color touchscreen and 20-day battery life. It includes functional features such as swim tracking, music controls, and effective notification mirroring. Conversely, the device lacks built-in GPS, requiring a smartphone connection for tracking outdoor workouts. The user...Read more

techadvisor.com

28/11/2019

Xiaomi Mi Band 4 Review: Unbeatable Value - Tech Advisor

Xiaomi Mi Band 4 Review Summary The Xiaomi Mi Band 4 is an exceptional budget-friendly fitness tracker that delivers unbeatable value at its low price point, acting as a strong competitor to pricier alternatives like Fitbit. The standout feature of this fifth-generation device is its new 0.95-inch customizable color AMOLED display, which is 40% larger than its predecessor and pushes...Read more

coolsmartphone.com

07/10/2019

Xiaomi Mi Smart Band 4 - Review - Coolsmartphone

The Xiaomi Mi Smart Band 4 is an impressive, budget-friendly fitness tracker priced at £34.99 that excels at casual health tracking. Its standout feature is its phenomenal 20-day battery life, easily outpacing premium smartwatches and allowing users to wear it for weeks without a charge. The device features a vibrant, tough 0.95-inch AMOLED touchscreen display that offers excellent...Read more

fullsync.co.uk

15/10/2019

Xiaomi Mi Band 4 Smart Bracelet review

The Xiaomi Mi Band 4 is a well-built and robust smart bracelet that offers a sleek design with a customizable 0.95-inch AMOLED color display. It is exceptionally comfortable for continuous all-day and all-night use, featuring a smooth, highly adjustable TPU band that dries quickly without causing skin irritation. The device boasts exceptional waterproof protection up to 5ATM, making...Read more

techgearlab.com

17/10/2019

Xiaomi Mi Band 4 Review | Tested & Rated

The Xiaomi Mi Band 4 is an affordable, entry-level fitness tracker that offers great value for budget-conscious users but lacks advanced features and style. On the positive side, it features a highly accurate step counter and distance estimator during walks, alongside an impressive battery life that can last up to 20 days on default settings. The tracker is lightweight, low-profile,...Read more

smartzone.de

30/06/2019

Xiaomi Mi Band 4 Review - Smartzone

The Xiaomi Mi Band 4 is a highly capable and budget-friendly fitness tracker that stands out for its high-quality build and sleek, lightweight design weighing just 22.1 grams. Its absolute highlight is the new 0.95-inch AMOLED color display with a 120 x 240 resolution, which remains perfectly readable even under direct sunlight thanks to its five adjustable brightness levels. The...Read more

chinamobilemag.de

15/07/2019

Xiaomi Mi Band 4 review", "Xiaomi Mi Band 4 test", "Xiaomi Mi Band 4 hands-on

The ChinaMobileMag review concludes that the Xiaomi Mi Band 4 is a highly sensible upgrade over its predecessor, offering exceptional value for its budget-friendly price tag. The tracker's standout feature is its new 0.95-inch color OLED display, which provides crisp visuals and vastly superior brightness outdoors compared to the Mi Band 3. Additional hardware strengths include its...Read more

windowsunited.de

04/08/2019

Xiaomi Mi Band 4 long-term review - WindowsUnited(galaxus.de) | 20.08.2019 | Xiaomi Mi Smart Band 4 review: an enticingly cheap fitness tracker

The WindowsUnited long-term review highlights the Xiaomi Mi Band 4 as a significant upgrade, featuring a vibrant 0.95-inch AMOLED color touchscreen, a 6-axis motion sensor with automatic activity detection, and a new pool swimming mode. Key conveniences include on-device music controls and improved visibility, making it a strong fitness tracker option. Conversely, the review notes...Read more

techreviewer.de

07/10/2024

Xiaomi Mi Band 4 Review - Fitness Tracker with Color Display!

The Xiaomi Mi Band 4 is a highly capable and budget-friendly fitness tracker featuring a significant upgrade to a 0.95-inch AMOLED color touch-display with a sharp 240 x 120 pixel resolution. It retains the compact design of its predecessor, offering cross-compatibility with Mi Band 3 wristbands. Equipped with a 6-axis motion sensor and a PPG heart rate monitor, the device tracks...Read more

fitness-tracker-test.info

09/01/2020

Mi Band 4 Review – Way More Fitness Tracker Than the Price Suggests

The Xiaomi Mi Band 4, featured in reviews from sources like techreviewer.de and expertreviews.co.uk, acts as an affordable fitness tracker featuring a 0.95-inch AMOLED color touchscreen, a 6-axis motion sensor for accurate tracking, and a 20-day battery life. Key strengths include six specialized workout modes, including pool swimming with stroke detection, alongside comfortable,...Read more

connect.de

23/09/2019

Xiaomi Mi Band 4 review - Connect

The Xiaomi Mi Band 4 is a highly affordable fitness tracker priced at just €39 that delivers an impressive range of features and top-tier value for money. The device is exceptionally lightweight at 22 grams and offers a comfortable fit thanks to its soft TPU strap. It features a sharp, high-contrast 0.95-inch color OLED touchscreen with a 120 x 240 pixel resolution and incorporates...Read more

computerbild.de

19/08/2020

Xiaomi Mi Smart Band 4 Review - COMPUTER BILD

The COMPUTER BILD review concludes that the Xiaomi Mi Smart Band 4 serves as a highly affordable entry-level fitness tracker, earning an overall test rating of 4.3 ("ausreichend" / sufficient). On the positive side, the tracker excels with an outstanding battery life that can reach up to 20 days and a sharp, full-color AMOLED display that expands to 0.95 inches. It provides precise...Read more

chip.de

02/04/2020

Xiaomi Mi Band 4 review - CHIP", "Xiaomi Mi Band 4 tested - CHIP

from CHIP: Review Summary The Xiaomi Mi Band 4 is a highly affordable fitness tracker that delivers strong performance for budget-conscious users, earning a "Good" (1.8) overall test rating and a "Very Cheap" (1.1) price evaluation. Its greatest strengths lie in its exceptional 98.2% step-counting accuracy and its outstanding battery life, which lasted 17.5 days in lab testing...Read more

lesnumeriques.com

11/05/2022

Great Deal: Xiaomi Mi Smart Band 4 Fitness Tracker for 22.90

The Xiaomi Mi Smart Band 4 is an entry-level activity tracker praised for its outstanding "champion" battery life and its vibrant, highly readable OLED color screen. It features an improved interface and quality ergonomics, making it a very compelling, budget-friendly option for general lifestyle tracking. At its deal price of €22.90 (a 35% discount), the review highlights the...Read more

planetenumerique.com

23/07/2019

Xiaomi Mi Band 4 Smartband Review: The Best Value for Money Right Now

The Planète Numérique review highly praises the Xiaomi Mi Band 4 as the best budget-friendly activity tracker of 2019, successfully delivering meaningful hardware upgrades without increasing its under-€30 price tag. The standout feature is its 0.95-inch color AMOLED touchscreen display, which replaces the previous generation's monochrome panel, offering excellent readability even in...Read more

digitec.ch

21/08/2019

Xiaomi Mi Smart Band 4 Review: A Fitness Tracker...", "Testing the Xiaomi Mi Smart Band 4: A Fitness Tracker...

The Digitec review highlights the Xiaomi Mi Smart Band 4 as an affordable tracker featuring a vibrant 0.95-inch AMOLED color display, a 39.9% larger screen than its predecessor, and impressive 5 ATM water resistance. It offers reliable, basic functionality, including accurate step counting, sleep monitoring, and an excellent, secure silicone strap. Conversely, the review notes...Read more

it-connect.fr

16/08/2019

Xiaomi Mi Band 4 review: the 40-euro fitness tracker", "Testing the Xiaomi Mi Band 4, the 40-euro smart band

of the Xiaomi Mi Smart Band 4 The Xiaomi Mi Smart Band 4 is an affordable, entry-level fitness tracker priced officially at €39.99, featuring a 0.95-inch AMOLED color touchscreen, 5 ATM water resistance, and a lightweight 22.1-gram design. A major upgrade from its monochrome predecessor, the Mi Band 3, this model introduces a vibrant color display with over 40 customizable watch...Read more

20minutes.fr

26/07/2019

Xiaomi Mi Smart Band 4: Is the 40-euro fitness tracker actually any good?

The Xiaomi Mi Smart Band 4 is a highly capable and budget-friendly activity tracker that offers an excellent performance-to-price ratio at just 40 euros. It features a sleek design consisting of a silicon strap and a vibrant, high-contrast color OLED touch screen made of tempered glass. Setting up the device takes only a few minutes using the redesigned, user-friendly Mi Fit...Read more

lesnumeriques.com

05/07/2019

Xiaomi Mi Smart Band 4 Review: Endurance Above All

The Xiaomi Mi Smart Band 4 is an affordable lifestyle fitness tracker that offers substantial upgrades over its predecessor, featuring a larger, vibrant 0.95-inch color OLED display and an improved touchscreen interface. Its standout feature is an exceptional battery life, lasting up to 10 days even under intensive use, alongside native music controls and a comfortable, highly...Read more

frandroid.com

29/06/2021

Xiaomi Mi Band 4 Review: Our Full Verdict - Smartwatches / Fitness Trackers

The Xiaomi Mi Band 4 is a lightweight and budget-friendly fitness tracker that introduces a larger, vibrant 0.95-inch OLED color display with up to 16,000 colors, marking a significant visual upgrade over its predecessor’s monochrome screen. In everyday testing, its battery life stands out as phenomenal, lasting 16 full days on a single charge even with power-heavy features like...Read more

elcomercio.pe

28/08/2019

ANALYSIS | We evaluate Xiaomi's Mi Smart Band 4

The El Comercio review of the Xiaomi Mi Smart Band 4 highlights the 0.95-inch color AMOLED screen, which significantly enhances outdoor visibility, readability, and customization via watch faces. Key advantages include functional music controls, smartphone notification synchronization, and a robust battery that lasts up to 20 days. However, the analysis notes significant drawbacks,...Read more

businessinsider.es

09/08/2019

Xiaomi Mi Smart Band 4 Review - Business Insider

The Xiaomi Mi Smart Band 4 is an excellent, low-cost entry-level fitness tracker that functions as a lightweight, 22-gram companion to a smartphone. Key advantages highlighted in the review include its impressive, bright 0.95-inch AMOLED color touchscreen, highly customizable notifications, and exceptional battery life that lasts up to 15 days on a single charge. Additionally, it...Read more

palabraderunner.com

25/06/2019

Xiaomi Mi Band 4 review: hands-on with all the new features", "Xiaomi Mi Band 4: review and opinion on all its new features

Overview of the Xiaomi Mi Band 4 Review The Xiaomi Mi Band 4 (also called the Mi Smart Band 4) is a highly successful, budget-friendly activity tracker that delivers unbeatable value for around €35. The most significant upgrade from previous versions is its larger 0.95-inch AMOLED color touchscreen, which features a higher 240x120 resolution and adjustable brightness up to 400 nits....Read more

computerhoy.20minutos.es

08/07/2019

Xiaomi Mi Band 4 review and opinion", "Xiaomi Mi Band 4: Review and verdict

The Xiaomi Mi Band 4 is an affordable fitness tracker that improves upon its predecessor with a larger, vibrant 0.95-inch OLED color display, making it much easier to read outdoors with its five manually adjustable brightness levels. A major highlight of this version is its increased independence from the Mi Fit app, allowing users to start, track, and stop various workouts (like...Read more

elespanol.com

01/07/2019

Xiaomi Mi Smart Band 4 Review: Boost Your Activity Without Breaking the Bank

The Xiaomi Mi Smart Band 4 offers an excellent balance between features and affordability, priced at around €35. A standout feature is its vibrant 0.95-inch AMOLED color touchscreen, which significantly enhances visibility outdoors compared to previous models. Health and lifestyle monitoring are major strong points, featuring highly convenient automatic sleep tracking with detailed...Read more

bambiniconlavaligia.com

19/03/2020

MI Smart Band 4: affordable smartwatch

The review from BambiniConLaValigia highlights the Xiaomi Mi Smart Band 4 as an ultra-affordable, lightweight smart wearable that serves as an excellent everyday health companion for amateur sports enthusiasts. Priced at under 30 Euros, it bridges the gap for those wanting smart features without a massive financial investment. The reviewer notes that the device is comfortable to...Read more

techprincess.it

29/07/2019

Xiaomi Mi Band 4 Review: The ultimate budget wearable

The original Xiaomi Mi Band is hailed by TechPrincess as a revolutionary, budget-friendly wearable, praised for its minimalist design, exceptional 30+ day battery life, and reliable step and sleep tracking. Its basic, effective functionality includes vibration alerts for notifications and an intelligent, light-sleep-detecting silent alarm. Key drawbacks mentioned in the review...Read more

multiplayer.it

16/07/2019

Xiaomi Mi Band 4 review", "Xiaomi Mi Band 4: The review

The Xiaomi Mi Band 4 is a highly competitive, budget-friendly smart band that marks a significant evolution for the series, primarily due to its new 0.95-inch AMOLED color display. Priced at just 34,99€, it features a screen that is 40% larger than its predecessor, offering much better brightness and a completely redesigned, vibrant user interface. The device excels at passive...Read more

macitynet.it

13/07/2019

Xiaomi Mi Band 4 Review: The Queen of Smartbands Is...

The Macitynet review crowns the Xiaomi Mi Band 4 as the undisputed queen of budget fitness trackers, highlighting its massive leap forward over previous generations. The most notable upgrade is the vibrant 0.95-inch AMOLED color touchscreen display ( 1 2 0 × 2 4 0 resolution), which drastically improves readability under direct sunlight compared to the monochrome screen of the Mi...Read more

ilfattoquotidiano.it

09/07/2019

Xiaomi Mi Band 4 is the 35-euro smartband that has it all

The Xiaomi Mi Band 4 is a highly budget-friendly fitness tracker priced at 35 euros that balances low cost with a strong feature set, making it highly appealing for everyday use. Its main advantages include a vibrant 0.95-inch AMOLED color touchscreen, a lightweight 22-gram design with easily swappable silicone straps, and an impressive 14-day battery life that recharges in just two...Read more

andreagaleazzi.com

28/06/2019

Xiaomi Mi Band 4 Review: A True Best Buy!

The Xiaomi Mi Band 4 is highly rated as a "best buy" due to its competitive pricing, premium features, and significant upgrades over its predecessor. The most notable improvement is its 0.95-inch AMOLED color display, which offers excellent visibility even under direct sunlight. The fitness tracker features continuous heart rate monitoring, highly accurate step tracking that...Read more

dday.it

24/07/2019

Mi Band 4 Review: With the AMOLED Screen, It's Now Almost Perfect", "Mi Band 4 Review: Now Nearly Perfect with Its AMOLED Screen

Based on the review from DDay.it, the Xiaomi Mi Band 4 stands out as a highly economical fitness tracker that offers significant improvements, primarily due to its new 0.95-inch AMOLED color touch display. Pros highlighted in the review include its exceptional 20-day battery life (which still had 17% remaining after intensive daily testing), high-precision step counting (recording...Read more

gadgetkeuze.nl

30/08/2019

Xiaomi Mi Band 4 Review - Gadget Choice

The Gadget Keuze review highlights the Xiaomi Mi Band 4 as an exceptionally affordable, high-value fitness tracker featuring a minimalist, lightweight aluminum and plastic design bundled with a soft, interchangeable silicone strap. Its standout hardware upgrade is a vibrant 0.95-inch AMOLED color touchscreen with a 240 x 120-pixel resolution and adjustable brightness that makes it...Read more

popula.nl

04/07/2022

The 3 best activity trackers of 2023 from the test

This product review by Popula.nl highlights the top three activity trackers of the year, breaking them down by price, functionality, and use case. The overall "Best Buy" is the Huawei Band Pro 4, praised for its rich features and built-in GPS/speedometer, making it ideal for runners and cyclists tracking routes without a smartphone. Its pros include a vibrant AMOLED display, a...Read more

nl.techreviewer.de

07/10/2024

Xiaomi Mi Band 4 review - fitness tracker with color display!

The TechReviewer review highlights the Xiaomi Mi Band 4 Global edition as a well-crafted and comfortable fitness tracker that offers substantial upgrades over its predecessor at an affordable price. A standout feature is its sharp, 0.95-inch AMOLED color touchscreen, which delivers 400 nits of brightness for excellent readability in direct sunlight, along with support for over 53...Read more

tweakers.net

15/07/2019

Xiaomi Mi Band 4 Black (Black) - KevinMech - Product reviews

The Xiaomi Mi Band 4, reviewed on Tweakers, is a budget-friendly fitness tracker praised for its bright color OLED display, extensive customization options, and long-lasting battery life. It offers high value at approximately 30 euros, providing a significant visual upgrade over previous, black-and-white models. YouTube · However, the review notes limitations, specifically...Read more

droidapp.nl

03/05/2020

Xiaomi Mi Band 4 review: an extensive fitness tracker for little money

Summary The Xiaomi Mi Band 4 is an affordable, waterproof fitness tracker available for around 30 to 40 euros that features a color AMOLED display and a comfortable silicone strap. It provides diverse functionalities directly from your wrist, including tracking steps, distance, and burned calories, alongside offering automatic sleep monitoring and manual or automatic heart rate...Read more

carlokonijn.nl

16/02/2020

Xiaomi Mi Band 4 review | Digital Security IT Advisor

However, the reviewer points out a few specific cons regarding the accompanying mobile app and standard settings. By default, the band prioritizes extreme battery saving over health metrics, meaning continuous heart rate monitoring must be manually enabled by the user. The primary disadvantage lies in the un-intuitive layout of the application software. For instance, viewing...Read more

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