Huawei · 2021
Watch GT 3 - 42mmSize, Dimensions & Wrist Fit
The Huawei Watch GT 3 - 42mm sits best on flat wrist widths of about 45–60mm (≈ 12.0–16.0cm wrist circumference). Adjust the slider below to check your wrist.
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The Watch GT 3 - 42mm in short
The figures that decide whether this watch suits you, pulled out of the full specification sheet further down.
- Rated for 7 days of use per charge.
- Water rated to 50 m.
- 35g on the wrist. Lighter than 87% of the 42mm watches we have weights for.
- 1.32 inches OLED/AMOLED display, always-on capable.
- Takes 20mm bands, so third-party straps fit without an adapter.
Does the Watch GT 3 - 42mm fit your wrist?
Drag the slider to your wrist width and see the Watch GT 3 - 42mm overlaid at true scale. Lug-to-lug — not case diameter — decides whether a watch overhangs your wrist.
Happy with the fit? Check current availability for the Watch GT 3 - 42mm.
Find it on Amazon2D Dimension Schematics
The Watch GT 3 - 42mm drawn to scale — from above, and in profile against the wrist.
- Huawei Watch GT 3 - 42mm42.3mm · 10.2mm thick
3D preview
Huawei Watch GT 3 - 42mm on a wrist
On an arm sized to your own wrist — the view a product photo never gives you.
Shapes are built from published measurements, not manufacturer 3D models — accurate proportions, generic dial.
Which Watch GT 3 size fits you?
This model comes in 2 versions. Set your measurement and each one reports its own verdict — tap any size to open its page.
Which of these fits your wrist?
Roughly a 14.7cm wrist circumference — the measurement a tape gives you. Compared against lug-to-lug where we have it, case width otherwise.
All 2 Watch GT 3 variants fit this wrist. The 45.9mm gives you the most presence without overhanging; the smallest is the discreet end of the range.
- Width
- 42.3mm
- Thick
- 10.2mm
- Weight
- 35g
6.4mm clear a side
- Width
- 45.9mm
- Thick
- 11mm
- Weight
- 42.6g
4.6mm clear a side
View this sizeWatch GT 3 - 42mm battery life
The runtime the manufacturer publishes for everyday use.
- Smartwatch7 days
How the Watch GT 3 - 42mm ranks on battery
Against the 61 Huawei watches in our database, ranked on each figure Huawei publishes.
- Everyday use7 days#29 of 61
- Capacity455 mAh#14 of 53
What size band does the Watch GT 3 - 42mm take?
Lug width
20mm
Any 20mm strap fits, so you are not restricted to Huawei's own bands. Quick-release pins let you swap without tools — check that a replacement lists 20mm and quick-release before buying.
Affiliate disclosure: As an Amazon Associate, WatchFitTool earns from qualifying purchases. If you buy through links on this page, we may earn a commission at no extra cost to you. Learn more.
Watch GT 3 - 42mm specifications
The figures that decide a purchase, followed by every line Huawei publishes.
- Battery life
- 7 days
- Display
- 1.32 inches
- Resolution
- 466 x 466 px
- Water rating
- 5 ATM
- Strap
- 20 mm
- Storage
- 4GB
Full specification sheet
116 published lines across 8 groups, unedited
Design
- width
- 42.3
- height
- 42.3
- volume
- 18.25 cm³
- weight
- 35 g
- thickness
- 10.2
- ATM rating
- 5 ATM
- resolution
- 466 x 466 px
- screen size
- 1.32 inches
- Display type
- OLED/AMOLED
- Has a display
- pixel density
- 353 ppi
- width of band
- 20 mm
- water resistance
- Waterproof
- Always-On Display
- has a touch screen
- waterproof depth rating
- 50 m
- Watch band is replaceable
- Has sapphire glass display
- maximum operating temperature
- 45 °C
- has branded damage-resistant glass
- lowest potential operating temperature
- -20 °C
Battery
- battery life
- 7 days
- battery power
- 455 mAh
- has wireless charging
- has a removable battery
- Has a solar power battery
- has a rechargeable battery
Sensors
- has GPS
- has a compass
- Has a barometer
- has a gyroscope
- Has a cadence sensor
- has an accelerometer
- Monitors perspiration
- Has a heart rate monitor
- Has a temperature sensor
- Monitors blood oxygenation levels
Features
- RAM
- 32MB
- release date
- 2021-10-19
- Has a stopwatch
- Has smart alarm
- warranty period
- 1 years
- Has call control
- Has silent alarm
- has HRV tracking
- internal storage
- 4GB
- measures VO2 max
- Has notifications
- Has ECG technology
- Locates your phone
- has a front camera
- has fall detection
- has voice commands
- Acquires GPS faster
- Has vibrating alerts
- number of microphones
- 1
- shows readiness level
- Can be used to answer calls
- measures resting heart rate
- has irregular heart rate warnings
- has fast/slow heart rate notifications
- Has a built-in camera remote control function
Connectivity
- has NFC
- supports ANT+
- supports Wi-Fi
- supports Galileo
- Bluetooth version
- 5.1
- has a cellular module
- Is compatible with iOS
- Is compatible with Android
Miscellaneous
- has aptX
- Has passcode
- Has auto pause
- Is compatible with Windows
- Is compatible with Mac OS X
- has an external memory slot
- Compatible with smart scales
- has a battery level indicator
- has a socket for a 3.5 mm audio jack
- Compatible with external heart rate monitors
App & Software
- Ad-free
- Free app
- Tracks BMI
- Has coaching
- Includes maps
- Supports routes
- Has achievements
- Has goal setting
- Has live tracking
- Has exercise diary
- Predicts ovulation
- Can be personalised
- Has weight tracking
- Predicts start date
- Tracks water intake
- Has inactivity alerts
- Has period notifications
- Has temperature tracking
- Doesn’t require account
- Provides activity reports
- Displays fertile window notifications
- Counts how many calories you've burned
Activity tracking
- Measures pace
- Tracks distance
- Tracks elevation
- Designed for golf
- Tracks your sleep
- Tracks steps taken
- Designed for diving
- Has a route tracker
- Has exercise tagging
- Has multi-sport mode
- Tracks calorie intake
- Provides sleep reports
- Detects activities automatically
- Has a stroke counter for swimming
Compare the Watch GT 3 - 42mm head to head
How each one differs in the three measurements you can feel on the wrist. Figures are relative to the Watch GT 3 - 42mm.
Alternatives to the Watch GT 3 - 42mm
Watches that cover a similar amount of wrist, with the measurements that separate them.
Huawei
Watch GT 5 Pro 42 mm
- Width
- 42.5mm
- Thick
- 9.6mm
- Weight
- 44g
Huawei
Watch 5 - 42mm
- Width
- 42mm
- Thick
- 10.5mm
- Weight
- 51g
Huawei
Watch
- Width
- 42mm
- Thick
- 11.3mm
- Weight
- —
Huawei
Honor Magic Watch 2 - 42mm · 45.9mm
- Width
- 41.8mm
- Thick
- 9.4mm
- Weight
- 29g
Huawei
Watch GT 2 - 42mm
- Width
- 41.8mm
- Thick
- 9.4mm
- Weight
- 29g
Huawei
Watch GT Elegant Edition
- Width
- 42.8mm
- Thick
- 10.5mm
- Weight
- 36.2g
Watch GT 3 - 42mm — Frequently Asked Questions
Will the Huawei Watch GT 3 - 42mm fit my wrist?
The Huawei Watch GT 3 - 42mm looks balanced on flat wrist widths of roughly 45–60mm (about 12.0–16.0cm circumference). Drag the slider above to check it against your own measurement.
What size band does the Huawei Watch GT 3 - 42mm take?
20mm. Any 20mm strap fits, so you are not limited to Huawei's own bands — look for a quick-release fitting if you want to swap without tools.
How long does the Huawei Watch GT 3 - 42mm battery last?
Huawei rates it at 7 days per charge in everyday use.
How does the Huawei Watch GT 3 - 42mm battery compare with other Huawei watches?
At 7 days in everyday use it ranks #29 of the 61 Huawei watches in our database — the top 48% of the range. The full ranking, including GPS and power-saving figures, is on our Huawei battery life comparison.
Is the Huawei Watch GT 3 - 42mm thick for a 42mm watch?
At 10.2mm, thinner than 92% of 42mm watches, so it slides under a cuff more easily than most of its size. Thickness, not case width, is what decides whether a watch catches on a shirt cuff.
Should I get the 42.3mm or 45.9mm Watch GT 3?
The Watch GT 3 comes in 2 case sizes — 42.3mm, 45.9mm. Which one suits you depends on the flat width of your wrist rather than preference: the larger sizes need a wider wrist to sit inside the edge. Set your measurement in the size picker above and each variant reports its clearance in millimetres.
What other watches are the same size as the Huawei Watch GT 3 - 42mm?
Certina DS Action Chrono PVD / Carbon / Bracelet, Omega Speedmaster Professional Moonwatch 3861 Moonshine Gold / Black Lacquer, TAG Heuer Carrera Chronograph Seafarer Stainless Steel / Silver, Garmin Forerunner® 570 - 42mm all sit within half a millimetre of the Huawei Watch GT 3 - 42mm's 42.3mm case, so they cover the same amount of wrist.
