Google Pixel Watch 4 - 45mm vs Huawei Watch Ultimate
Size, specs & wrist fit compared
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Which one fits you
On wrists narrower than about 51mm, the Google Pixel Watch 4 - 45mm is the safer pick — it stays proportionate down to roughly 47mm, where the Huawei Watch Ultimate starts to hang over the edge. Above 51mm both sit cleanly, and the Huawei Watch Ultimate gives you more presence.
The Huawei Watch Ultimate wears larger than the Google Pixel Watch 4 - 45mm (48.5mm vs 45mm case), giving it more wrist presence — and needing a wider wrist to sit cleanly.
The Google Pixel Watch 4 - 45mm is the slimmer of the two (12.3mm vs 13mm), so it slides under a cuff more easily.
On the wrist the Google Pixel Watch 4 - 45mm feels lighter (36.7g vs 76g, case only).
The Google Pixel Watch 4 - 45mm is thinner than 70% of the 45mm watches we track and the Huawei Watch Ultimate than 73% of the 49mm ones — so both wear flatter than their widths suggest.
The Huawei Watch Ultimate is 3.5mm wider, 3.5mm longer, 0.7mm thicker and 39.3g heavier than the Google Pixel Watch 4 - 45mm. Both are circular.
Pixel Watch 4 - 45mm
Huawei
Watch Ultimate
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Pixel Watch 4 - 45mm
Huawei
Watch Ultimate
2D Dimension Schematics
Every case drawn to scale on a shared centre — from above, and in profile against the wrist.
- Google Pixel Watch 4 - 45mm45mm · 12.3mm thick
- Huawei Watch Ultimate48.5mm · 13mm thick
3D preview
Google Pixel Watch 4 - 45mm vs Huawei Watch Ultimate 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 Huawei Watch Ultimate lasts 8.7× as long as the Google Pixel Watch 4 - 45mm (14 days against 38.4 hours).
Google Pixel Watch 4 - 45mmHuawei Watch Ultimate
Smartwatch
1.6 days14 daysTraining
—192 hoursGPS
—192 hoursBattery Saver
72 hours—
Specifications
The short version
10 key specs| Spec | GooglePixel Watch 4 - 45mm | HuaweiWatch Ultimate |
|---|---|---|
| Case Width | 45mm | 48.5mm |
| Thickness | 12.3mm | 13mm |
| Weight | 36.7g | 76g |
| Shape | Circular | Circular |
| Water Resistance | 5 ATM | 10 ATM |
| GPS | Yes | Yes |
| Display type | OLED/AMOLED | OLED/AMOLED |
| Screen size | 1.4 inches | 1.5 inches |
| Battery life | 1.6 days | 14 days |
| Released | 2025 | 2023 |
Every specification
123 specs| Spec | Google Pixel Watch 4 - 45mm | Huawei Watch Ultimate |
|---|---|---|
| Design | ||
| width | 45 | 48.5 |
| height | 45 | 48.5 |
| volume | 24.91 cm³ | 30.58 cm³ |
| weight | 36.7 g | 76 g |
| thickness | 12.3 | 13 |
| ATM rating | 5 ATM | 10 ATM |
| resolution | 456 x 456 px | 466 x 466 px |
| screen size | 1.4 inches | 1.5 inches |
| Display type | OLED/AMOLED | OLED/AMOLED |
| Has a display | Yes | Yes |
| pixel density | 320 ppi | 311 ppi |
| water resistance | Waterproof | Waterproof |
| Always-On Display | Yes | Yes |
| has a touch screen | Yes | Yes |
| Gorilla Glass version | Gorilla Glass 5 | — |
| waterproof depth rating | 50 m | 100 m |
| Watch band is replaceable | Yes | Yes |
| Has sapphire glass display | No | Yes |
| Ingress Protection (IP) rating | IP68 | IP68 |
| has branded damage-resistant glass | Yes | No |
| width of band | — | 22 mm |
| maximum operating temperature | — | 45 °C |
| lowest potential operating temperature | — | -20 °C |
| Battery | ||
| charge time | 1.25 hours | 1 hours |
| battery life | 1.6 days | 14 days |
| battery power | 455 mAh | 530 mAh |
| has wireless charging | No | Yes |
| has a removable battery | No | No |
| Has a solar power battery | No | No |
| has a rechargeable battery | Yes | Yes |
| battery life in power save mode | 72 hours | — |
| battery life with GPS on | — | 192 hours |
| battery life in training mode | — | 192 hours |
| Sensors | ||
| has GPS | Yes | Yes |
| has a compass | Yes | Yes |
| Has a barometer | Yes | Yes |
| has a gyroscope | Yes | Yes |
| Has a cadence sensor | Yes | Yes |
| has an accelerometer | Yes | Yes |
| Monitors perspiration | No | — |
| Has a heart rate monitor | Yes | Yes |
| Has a temperature sensor | Yes | Yes |
| Monitors blood oxygenation levels | Yes | Yes |
| Features | ||
| RAM | 2GB | 2GB |
| release date | 2025-08-20 | 2023-03-23 |
| Has a stopwatch | Yes | Yes |
| Has smart alarm | No | — |
| warranty period | 1 years | 1 years |
| Has call control | Yes | Yes |
| Has silent alarm | Yes | Yes |
| has HRV tracking | Yes | No |
| internal storage | 32GB | 32GB |
| measures VO2 max | Yes | Yes |
| Has notifications | Yes | Yes |
| Has ECG technology | Yes | Yes |
| Locates your phone | Yes | Yes |
| has fall detection | Yes | — |
| has voice commands | Yes | — |
| Acquires GPS faster | No | Yes |
| Has vibrating alerts | Yes | Yes |
| shows readiness level | Yes | Yes |
| 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 | Yes | Yes |
| SIM cards | 1 eSIM | — |
| Wi-Fi version | Wi-Fi 4 (802.11n), Wi-Fi 5 (802.11ac), Wi-Fi 6 (802.11ax) | — |
| supports Wi-Fi | Yes | Yes |
| supports Galileo | Yes | Yes |
| Bluetooth version | 6 | 5.2 |
| has a cellular module | Yes | No |
| Is compatible with iOS | No | Yes |
| Is compatible with Android | Yes | Yes |
| Miscellaneous | ||
| Has passcode | Yes | Yes |
| Is compatible with Windows | No | No |
| Is compatible with Mac OS X | No | No |
| has an external memory slot | No | No |
| has a battery level indicator | Yes | Yes |
| has a socket for a 3.5 mm audio jack | No | No |
| Has auto pause | — | Yes |
| Has trackback mode | — | Yes |
| Compatible with smart scales | — | Yes |
| Provides the sunrise/sunset time | — | Yes |
| Compatible with external heart rate monitors | — | Yes |
| App & Software | ||
| Ad-free | Yes | Yes |
| Free app | 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 |
| Tracks BMI | — | Yes |
| number of exercises | — | 144 |
| 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 | Yes |
| Tracks calorie intake | Yes | Yes |
| Provides sleep reports | Yes | Yes |
| Detects activities automatically | Yes | Yes |
| Has a stroke counter for swimming | No | Yes |
Wrist Fit
Google Pixel Watch 4 - 45mm
Sits best on wrists ~47–64mm wide (≈ 12.6–17.1cm circumference).
Huawei Watch Ultimate
Sits best on wrists ~51–69mm wide (≈ 13.6–18.4cm circumference).
Frequently Asked Questions
Is the Google Pixel Watch 4 - 45mm bigger than the Huawei Watch Ultimate?
The Huawei Watch Ultimate is bigger — 48.5mm vs 45mm case width.
Which fits a smaller wrist better, the Google Pixel Watch 4 - 45mm or the Huawei Watch Ultimate?
The Google Pixel Watch 4 - 45mm suits wrists around 47–64mm wide, and the Huawei Watch Ultimate around 51–69mm. The one with the smaller lower bound is the safer pick for a small wrist.
Can I see the Google Pixel Watch 4 - 45mm and Huawei Watch Ultimate 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.