Huawei
Watch GT 3 - 42mm vs Watch GT 5 Pro 42 mm
Size, specs & wrist fit compared
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Which one fits you
Both need much the same wrist — roughly 45–61mm across the flat of the wrist. Neither will fit where the other won't, so decide on thickness, weight and features instead.
The Watch GT 3 - 42mm and Watch GT 5 Pro 42 mm share a near-identical 42.3mm case, so wrist presence comes down to thickness, lug-to-lug and weight.
The Watch GT 5 Pro 42 mm is the slimmer of the two (9.6mm vs 10.2mm), so it slides under a cuff more easily.
On the wrist the Watch GT 3 - 42mm feels lighter (35g vs 44g, case only).
The Watch GT 3 - 42mm is thinner than 92% of the 42mm watches we track and the Watch GT 5 Pro 42 mm than 92% of the 43mm ones — so both wear flatter than their widths suggest.
The Watch GT 5 Pro 42 mm is 0.2mm wider, 0.2mm longer, 0.6mm thinner and 9g heavier than the Watch GT 3 - 42mm. Both are circular.
Watch GT 3 - 42mm
Watch GT 5 Pro 42 mm
Switch or add watches
Huawei
Watch GT 3 - 42mm
Huawei
Watch GT 5 Pro 42 mm
2D Dimension Schematics
Every case drawn to scale on a shared centre — from above, and in profile against the wrist.
- Huawei Watch GT 3 - 42mm42.3mm · 10.2mm thick
- Huawei Watch GT 5 Pro 42 mm42.5mm · 9.6mm thick
3D preview
Watch GT 3 - 42mm vs Watch GT 5 Pro 42 mm on a wrist
Sized to your own wrist, turned any way you like.
Shapes are built from published measurements, not manufacturer 3D models — accurate proportions, generic dial.
Battery life compared
Furthest apart in Smartwatch mode, where the 3 - 42mm lasts 1.8× as long as the 5 Pro 42 mm (7 days against 4 days).
3 - 42mm5 Pro 42 mm
Smartwatch
7 days4 days
Specifications
The short version
10 key specs| Spec | HuaweiWatch GT 3 - 42mm | HuaweiWatch GT 5 Pro 42 mm |
|---|---|---|
| Case Width | 42.3mm | 42.5mm |
| Thickness | 10.2mm | 9.6mm |
| Weight | 35g | 44g |
| Shape | Circular | Circular |
| Water Resistance | 5 ATM | 5 ATM |
| GPS | Yes | Yes |
| Display type | OLED/AMOLED | OLED/AMOLED |
| Screen size | 1.32 inches | 1.32 inches |
| Battery life | 7 days | 4 days |
| Released | 2021 | 2024 |
Every specification
118 specs| Spec | Huawei Watch GT 3 - 42mm | Huawei Watch GT 5 Pro 42 mm |
|---|---|---|
| Design | ||
| width | 42.3 | 42.5 |
| height | 42.3 | 42.5 |
| volume | 18.25 cm³ | 17.34 cm³ |
| weight | 35 g | 44 g |
| thickness | 10.2 | 9.6 |
| ATM rating | 5 ATM | 5 ATM |
| resolution | 466 x 466 px | 466 x 466 px |
| screen size | 1.32 inches | 1.32 inches |
| Display type | OLED/AMOLED | OLED/AMOLED |
| Has a display | Yes | Yes |
| pixel density | 353 ppi | 326 ppi |
| width of band | 20 mm | 20 mm |
| water resistance | Waterproof | Waterproof |
| Always-On Display | Yes | Yes |
| has a touch screen | Yes | Yes |
| waterproof depth rating | 50 m | 50 m |
| Watch band is replaceable | Yes | Yes |
| Has sapphire glass display | No | Yes |
| maximum operating temperature | 45 °C | 45 °C |
| has branded damage-resistant glass | No | No |
| lowest potential operating temperature | -20 °C | 20 °C |
| is designed for kids | — | No |
| Battery | ||
| battery life | 7 days | 4 days |
| battery power | 455 mAh | 323 mAh |
| has wireless charging | Yes | Yes |
| has a removable battery | No | No |
| Has a solar power battery | No | No |
| has a rechargeable battery | Yes | Yes |
| Sensors | ||
| has GPS | Yes | Yes |
| has a compass | Yes | Yes |
| Has a barometer | Yes | Yes |
| has a gyroscope | Yes | Yes |
| Has a cadence sensor | No | No |
| has an accelerometer | Yes | Yes |
| Monitors perspiration | No | No |
| Has a heart rate monitor | Yes | Yes |
| Has a temperature sensor | Yes | Yes |
| Monitors blood oxygenation levels | Yes | Yes |
| Features | ||
| RAM | 32MB | — |
| release date | 2021-10-19 | 2024-09-19 |
| Has a stopwatch | Yes | Yes |
| Has smart alarm | Yes | No |
| warranty period | 1 years | 1 years |
| Has call control | Yes | Yes |
| Has silent alarm | Yes | Yes |
| has HRV tracking | Yes | — |
| internal storage | 4GB | — |
| measures VO2 max | Yes | — |
| Has notifications | Yes | Yes |
| Has ECG technology | No | Yes |
| Locates your phone | Yes | Yes |
| has a front camera | No | — |
| has fall detection | No | No |
| has voice commands | No | Yes |
| Acquires GPS faster | No | No |
| Has vibrating alerts | Yes | Yes |
| number of microphones | 1 | 1 |
| shows readiness level | No | — |
| Can be used to answer calls | Yes | Yes |
| measures resting heart rate | Yes | Yes |
| has irregular heart rate warnings | Yes | Yes |
| has fast/slow heart rate notifications | Yes | Yes |
| Has a built-in camera remote control function | Yes | Yes |
| Connectivity | ||
| has NFC | No | Yes |
| supports ANT+ | No | No |
| supports Wi-Fi | No | Yes |
| supports Galileo | Yes | Yes |
| Bluetooth version | 5.1 | 5.2 |
| has a cellular module | No | No |
| Is compatible with iOS | Yes | Yes |
| Is compatible with Android | Yes | Yes |
| Wi-Fi version | — | Wi-Fi 4 (802.11n) |
| Miscellaneous | ||
| has aptX | No | — |
| Has passcode | Yes | Yes |
| Has auto pause | Yes | Yes |
| Is compatible with Windows | No | No |
| Is compatible with Mac OS X | No | No |
| has an external memory slot | No | No |
| Compatible with smart scales | Yes | Yes |
| has a battery level indicator | Yes | Yes |
| has a socket for a 3.5 mm audio jack | No | No |
| Compatible with external heart rate monitors | Yes | Yes |
| App & Software | ||
| Ad-free | Yes | Yes |
| Free app | Yes | Yes |
| Tracks BMI | Yes | Yes |
| Has coaching | Yes | Yes |
| Includes maps | Yes | Yes |
| Supports routes | Yes | Yes |
| Has achievements | Yes | Yes |
| Has goal setting | Yes | Yes |
| Has live tracking | Yes | Yes |
| Has exercise diary | Yes | Yes |
| Predicts ovulation | Yes | Yes |
| Can be personalised | Yes | Yes |
| Has weight tracking | Yes | Yes |
| Predicts start date | Yes | Yes |
| Tracks water intake | Yes | Yes |
| Has inactivity alerts | Yes | Yes |
| Has period notifications | Yes | Yes |
| Has temperature tracking | Yes | Yes |
| Doesn’t require account | No | — |
| Provides activity reports | Yes | Yes |
| Displays fertile window notifications | Yes | Yes |
| Counts how many calories you've burned | Yes | Yes |
| Activity tracking | ||
| Measures pace | Yes | Yes |
| Tracks distance | Yes | Yes |
| Tracks elevation | Yes | Yes |
| Designed for golf | No | Yes |
| Tracks your sleep | Yes | Yes |
| Tracks steps taken | Yes | Yes |
| Designed for diving | No | Yes |
| Has a route tracker | Yes | Yes |
| Has exercise tagging | Yes | Yes |
| Has multi-sport mode | No | No |
| Tracks calorie intake | Yes | Yes |
| Provides sleep reports | Yes | Yes |
| Detects activities automatically | Yes | Yes |
| Has a stroke counter for swimming | Yes | — |
Wrist Fit
Huawei Watch GT 3 - 42mm
Sits best on wrists ~45–60mm wide (≈ 12.0–16.0cm circumference).
Huawei Watch GT 5 Pro 42 mm
Sits best on wrists ~45–61mm wide (≈ 12.0–16.3cm circumference).
Frequently Asked Questions
Is the Huawei Watch GT 3 - 42mm bigger than the Huawei Watch GT 5 Pro 42 mm?
The Huawei Watch GT 5 Pro 42 mm is bigger — 42.5mm vs 42.3mm case width.
Which fits a smaller wrist better, the Huawei Watch GT 3 - 42mm or the Huawei Watch GT 5 Pro 42 mm?
The Huawei Watch GT 3 - 42mm suits wrists around 45–60mm wide, and the Huawei Watch GT 5 Pro 42 mm around 45–61mm. The one with the smaller lower bound is the safer pick for a small wrist.
Can I see the Huawei Watch GT 3 - 42mm and Huawei Watch GT 5 Pro 42 mm side by side at true scale?
Yes — the schematics and photos above show both watches at matched scale, and our fit tool overlays each on your wrist width.