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Blackview W40 Smart Watch Review and Ranking

The Blackview W40 is a budget Bluetooth smartwatch with a 1.43-inch AMOLED always-on display, calling, notifications, 100+ sports modes, and reference health and sleep tracking. It is strongest as a low-cost daily fitness and lifestyle watch, supported by a value score of 85. Recurring connection complaints and a modest durability score limit its appeal for users who need dependable long-term tracking.
Expert reviewed
68
Overall score
Data-driven scoring Expert reviewed Updated analysis

Why we ranked it highly

The Blackview W40 is a round smartwatch aimed at users who want everyday phone connectivity and broad basic tracking without a high purchase price. Its feature set includes a 1.43-inch AMOLED touchscreen with an always-on option, Bluetooth calls, app notifications, more than 100 sports modes, heart-rate and blood-oxygen readings, stress status, and staged sleep tracking. GPS is supplied through a connected smartphone and the Da Fit app rather than built into the watch. It includes silicone and nylon braided straps, which adds flexibility for daily wear. The watch also has IP68 water resistance, magnetic charging, customizable watch faces, and practical tools such as alarms, music controls, a calculator, and a flashlight. It is best viewed as a general lifestyle and activity companion: the manufacturer says measurement results are for reference only, and review data identifies connectivity and reliability as important caveats.
90-day review Expert reviewed User feedback Data scoring

Key specs

Additional details

Operating System
iOS, Android
Additional Features
Always On Display
GPS Geotagging Functionality
GPS Via Smartphone
Band Material Type
Silicone, Nylon
Water Resistance Level
Waterproof
Human Interface Input
Buttons, Microphone, Touchscreen
Supported Application
Always-on Display, AMOLED Display,2 Pack Watch Bands(Silicone+Nylon),Answer/Make calls/AI Control, Notifications, IP68 Waterproof/100 Sports Modes/Heart Rate/SpO2/Stress/Sleep Monitor, weather, alarm, timer, stopwatch, calendar, calculator, menstrual cycle tracker, games,World Clock,sedentary and drink water reminder, music control, remote control to take photos on your phone etc.
Water Resistance Depth
10 Meters
Supported Satellite Navigation System
GPS
Metrics Measured
Heart Rate, Blood oxygen, Sleep Tracker, Weather Forecast, Music Player Control
Closure Type
Buckle

Style

Shape
Round
Style Name
Modern
Color
W40-Gold Pink

Connectivity

Connectivity Technology
Bluetooth
Wireless Compability
Bluetooth
Wireless Provider
Unlocked
Communication Feature
Voice Call, Text Messaging, Phone Call

Compatibility

Compatible Devices
Smartphone
Compatible Phone Models
Compatible with iOS and Android devices

Memory & Storage

Memory Storage Capacity
128 MB
RAM Memory Installed
481 KB

Item details

Brand
Blackview
Model Name
W40Gold Pink
Target Audience
Girls, Unisex Adults, Unisex Youth, Women
Age Range Description
Adult
Model Number
W40
Built-In Media
Charging Cable, Nylon Strap*1, Product Manual*1, Silicon Strap*1, Smart Watch*1
Wearable Computer Type
Smart Watch
UPC
810192205486
Manufacturer
Blackview

Battery

Battery Capacity
380 Milliamp Hours
Battery Cell Type
Lithium Ion
Battery Charge Time
2.5 Hours

Display

Screen Size
1.43 Inches
Display Type
AMOLED
Resolution
360 x 360

Measurements

Item Dimensions
7.17 x 3.39 x 0.71 inches

User guide

Waterproof Rating
IP68

Scores breakdown

62 /100

Health impact

74 /100

Fitness support

66 /100

Sleep support

55 /100

Recovery support

72 /100

Wellness support

69 /100

Effectiveness

43 /100

Evidence quality

72 /100

Safety

Strengths

  • 1.43-inch AMOLED always-on display with 360 x 360 resolution
  • Two included strap options: silicone and nylon braided
  • More than 100 sports modes with phone-connected GPS
  • Bluetooth calling, notifications, and everyday utility tools
  • IP68 water-resistance rating
  • Strong value score of 85 at the listed price of 37.32
  • High portability score of 83 and straightforward magnetic charging
  • Large review base of 12,194 reviews with a 4.1/5 average rating

Limitations

  • Bluetooth disconnections are a recurring customer complaint
  • Reported battery life varies substantially between users
  • Durability score is 55, with reports of units failing after a few months
  • Health and sleep measurements are for reference only, not medical use
  • Tracking accuracy score of 58 indicates limited confidence in precise measurements
  • Da Fit app and notification setup can be difficult for some users
  • No ability to download additional apps is reported
  • Warranty and support information is limited, reflected in the 45 support score

Ideal user profiles

  • Budget-focused buyers seeking a basic Bluetooth smartwatch
  • Users who want a bright screen for time, calls, and notifications
  • People who prefer silicone and nylon strap options for daily wear
  • Beginners looking for broad activity and sleep tracking features
  • iPhone and Android users who accept phone-connected GPS

Use cases

  • Checking calls and selected phone notifications from the wrist
  • Tracking daily steps, activity duration, and basic workout sessions
  • Using one of 100+ sports modes for general exercise logging
  • Reviewing reference heart-rate, blood-oxygen, stress, and sleep data
  • Using alarms, timers, weather, music controls, and a calculator
  • Customizing the watch face with available designs or photos
  • Monitoring basic activity trends through the Da Fit app

Fit and positioning

Who this works for

Health positioning

The W40 is primarily a general lifestyle smartwatch with fitness, wellness, and reference health-monitoring functions. It can display heart-rate, blood-oxygen, stress, and sleep information alongside activity data, but it is not presented as a medical device. Its health impact score of 62 reflects moderate relevance for day-to-day awareness rather than strong evidence of health outcomes. The broader appeal is the combination of activity support, phone connectivity, and routine tools in an affordable wearable.

Best for

This watch is best suited to budget-conscious users who want a large, readable AMOLED screen, wrist-based call handling, notifications, and broad everyday activity features. Its fitness support score of 74, comfort score of 78, and value score of 85 make it a practical option for beginners and casual exercisers. It also suits people who value having both silicone and nylon strap options, provided they are comfortable using phone-linked GPS and reference-level health data.

Not best for

The W40 is less suitable for users who require highly dependable notifications, stable Bluetooth pairing, detailed on-device data, or precise workout metrics. Its tracking accuracy score is 58, app experience score is 57, and customer feedback includes recurring disconnections. Buyers seeking proven health measurements should also look elsewhere, as the device is not medical equipment and its evidence quality score is 43. Long-term reliability is another concern, with a durability score of 55.

Health benefits

The W40 can support general health awareness by placing reference heart-rate, blood-oxygen, stress, sleep, and activity information in one device. Its health impact score of 62 suggests a useful but limited role in daily monitoring. These features may help users notice routines and trends, but the supplied product information states that readings are for reference only and should not be used as medical measurements.

Performance analysis

How it performs in practice

Each scoring dimension is separated into a compact card so the strengths and tradeoffs are easier to compare without reading one long block.

Effectiveness analysis

The W40 earns an effectiveness score of 69, indicating competent performance for its main role as a budget smartwatch with everyday fitness features. Its AMOLED display, calling functions, notifications, 100+ sports modes, and basic monitoring create a broad feature set for the price. Reviews frequently praise appearance, simple setup, battery performance, and general usefulness. However, reported Bluetooth disconnections, notification delays, and occasional device failures mean effectiveness may vary materially between users and phones.

Evidence quality

The evidence quality score of 43 is limited. Available information largely consists of manufacturer feature claims and customer experiences, rather than product-specific clinical validation of heart-rate, blood-oxygen, stress, or sleep outputs. Customer reports can describe practical use but cannot verify measurement accuracy or health benefit. The manufacturer explicitly says the watch is not a medical device and that results are for reference only. This supports cautious use for general tracking, not clinical interpretation.

Safety

The W40 receives a safety score of 72. It is an IP68-rated wearable with a lithium-ion battery and skin-contact straps, and no specific safety incident pattern is supplied beyond reliability reports. Users should follow the product instructions for charging, water exposure, and normal wear. Because its heart-rate, blood-oxygen, stress, and sleep results are reference measurements rather than medical readings, they should not be used to make health decisions or replace professional advice.

Comfort

Comfort is a relative strength at 78. The included silicone and nylon braided straps give users two material options, and reviews mention good fit and appreciation for switching bands, including by a user with sensitive skin. The 1.43-inch round face may feel large for some wrists; one reviewer specifically found it bigger than preferred. Comfort is therefore likely to depend on wrist size and display preference.

How it compares

Within the budget smartwatch category, the W40 appears stronger for screen quality, broad everyday features, comfort, portability, and upfront value than for measurement confidence or connected-software reliability. Its 1.43-inch AMOLED always-on display, dual straps, calls, and 100+ sports modes give it a competitive casual-use profile. Fitness support at 74 and wellness support at 72 are respectable, while tracking accuracy at 58 and app experience at 57 are more modest. It is a practical general smartwatch, not a specialist sports, recovery, or health-monitoring device.

Ranking summary

The W40's overall score of 68 reflects a capable but uneven budget smartwatch profile. It gains ground through value at 85, portability at 83, maintenance at 81, comfort at 78, and fitness support at 74. The large AMOLED display, calling function, two straps, and high number of sports modes make the package appealing at its listed price. Its rank is held back by evidence quality at 43, warranty and support at 45, durability at 55, app experience at 57, and tracking accuracy at 58. The result is solid everyday value rather than consistently dependable performance.

Buying advice

Consider the Blackview W40 if you want an affordable smartwatch for calls, selected notifications, basic exercise logging, sleep trend viewing, and everyday wrist convenience. It is especially compelling if an AMOLED screen, two strap styles, and a low upfront price matter more than advanced analytics. Before buying, confirm that your iPhone or Android phone meets the stated compatibility requirements and be prepared to use Da Fit for pairing and phone GPS. Check the retailer's return and warranty terms carefully. Avoid it if stable notifications, precise body measurements, detailed training analysis, or proven long-term reliability are priorities.
68
Overall score

Final verdict

The Blackview W40 is a good-value, entry-level smartwatch rather than a high-confidence health or training tool. Its main strengths are its 1.43-inch AMOLED always-on display, broad daily feature set, two included straps, practical portability, and value score of 85. It can suit casual users who want calls, notifications, activity logging, and reference sleep or health data in one affordable device. Its main limitation is inconsistent reliability: Bluetooth disconnections, app friction, variable battery results, and failure reports reduce confidence. It is a sensible budget option when purchased with realistic expectations and clear return coverage.
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Key topics

Blackview W40 smartwatch review, Blackview smart watch for women review, AMOLED fitness tracker review, budget Bluetooth calling smartwatch, smartwatch with sleep monitor, 100 sports modes smartwatch, Da Fit smartwatch review, Blackview fitness watch

Frequently asked questions

Is the Blackview W40 good for fitness tracking?
The Blackview W40 has a fitness support score of 74 and includes more than 100 sports modes, step tracking, calories, exercise duration, and phone-connected GPS. It is better suited to general activity logging than precise training analysis, as its tracking accuracy score is 58 and customer feedback on measurement consistency is mixed.
Can the Blackview W40 track sleep?
Yes. The watch reports deep, light, awake, and REM sleep stages, giving it a sleep support score of 66. This can be useful for observing general sleep patterns, but the manufacturer states that its readings are for reference only and should not be treated as medical information.
Does the Blackview W40 require an app?
The W40 uses the Da Fit app for phone connection and features such as GPS-linked activity tracking. Reviews indicate that some users connect without difficulty, while others report setup friction, delayed notifications, or disconnections. Check that your phone runs Android 6.0 or later or iOS 9.0 or later.
How long does the Blackview W40 battery last?
Blackview states up to seven days of use and around 25 days of standby time after a 2.5-hour charge. Customer reports vary: some users report roughly a week, while others report around two to three days. Always-on display use, calls, notifications, and connection behavior may affect practical runtime.
Is the Blackview W40 comfortable to wear?
Comfort is one of its stronger areas, with a score of 78. The package includes both silicone and nylon braided straps, and reviewers mention a good fit and appreciation for the alternative band materials. One reviewer found the watch face larger than preferred, so wrist size and display preference remain worth considering.
Are the Blackview W40 health measurements accurate?
The watch offers heart-rate, blood-oxygen, stress, and sleep measurements, but its tracking accuracy score is 58 and evidence quality score is 43. The supplied information does not establish medical-grade accuracy. Blackview also states that the data is for reference only, so it is best used for general awareness rather than health decisions.
What are the main Blackview W40 drawbacks?
The clearest limitations are inconsistent Bluetooth reliability, notification issues, and a durability score of 55. Some customers report frequent disconnections or devices that stop functioning after a short period. The Da Fit experience also receives a moderate app score of 57, and support information is limited.
Is the Blackview W40 good value for money?
Its value score of 85 is a major positive. At the listed price of 37.32, it combines an AMOLED always-on display, Bluetooth calls, two straps, broad sports modes, and basic health and sleep tracking. The trade-off is less confidence in long-term reliability, data precision, and connected-app consistency.

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