Apple Watch Series 9 - Stainless Steel · 45mm vs Google Pixel Watch 4 - 41mm
Size, specs & wrist fit compared
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Which one fits you
On wrists narrower than about 47mm, the Google Pixel Watch 4 - 41mm is the safer pick — it stays proportionate down to roughly 43mm, where the Apple Watch Series 9 - Stainless Steel · 45mm starts to hang over the edge. Above 47mm both sit cleanly, and the Apple Watch Series 9 - Stainless Steel · 45mm gives you more presence.
The Google Pixel Watch 4 - 41mm wears larger than the Apple Watch Series 9 - Stainless Steel · 45mm (41mm vs 38mm case), giving it more wrist presence — and needing a wider wrist to sit cleanly.
The Apple Watch Series 9 - Stainless Steel · 45mm is the slimmer of the two (10.7mm vs 12.3mm), so it slides under a cuff more easily.
On the wrist the Google Pixel Watch 4 - 41mm feels lighter (31g vs 51.5g, case only).
Both are middle-of-the-pack for thickness among the 38mm and 41mm watches in the database.
The Google Pixel Watch 4 - 41mm is 3mm wider, 4mm shorter, 1.6mm thicker and 20.5g lighter than the Apple Watch Series 9 - Stainless Steel · 45mm.
Apple
Watch Series 9 - Stainless Steel · 45mm
Pixel Watch 4 - 41mm
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Apple
Watch Series 9 - Stainless Steel · 45mm
Pixel Watch 4 - 41mm
2D Dimension Schematics
Every case drawn to scale on a shared centre — from above, and in profile against the wrist.
- Apple Watch Series 9 - Stainless Steel · 45mm38mm × 45mm · 10.7mm thick
- Google Pixel Watch 4 - 41mm41mm · 12.3mm thick
3D preview
Apple Watch Series 9 - Stainless Steel · 45mm vs Google Pixel Watch 4 - 41mm 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 Google Pixel Watch 4 - 41mm lasts 1.7× as long as the Apple Watch Series 9 - Stainless Steel · 45mm (30 hours against 18 hours).
Apple Watch Series 9 - Stainless Steel · 45mmGoogle Pixel Watch 4 - 41mm
Battery Saver
36 hours48 hoursSmartwatch
0.75 days1.25 days
Specifications
The short version
11 key specs| Spec | AppleWatch Series 9 - Stainless Steel · 45mm | GooglePixel Watch 4 - 41mm |
|---|---|---|
| Case Width | 38mm | 41mm |
| Lug-to-Lug | 45mm | 41mm |
| Thickness | 10.7mm | 12.3mm |
| Weight | 51.5g | 31g |
| Shape | Rectangle | Circular |
| Water Resistance | Waterproof | 5 ATM |
| GPS | Yes | Yes |
| Display type | OLED/AMOLED | OLED/AMOLED |
| Screen size | 1.9 inches | 1.2 inches |
| Battery life | 0.75 days | 1.25 days |
| Released | 2023 | 2025 |
Every specification
120 specs| Spec | Apple Watch Series 9 - Stainless Steel · 45mm | Google Pixel Watch 4 - 41mm |
|---|---|---|
| Design | ||
| width | 38 | 41 |
| height | 45 | 41 |
| volume | 18.3 cm³ | 20.68 cm³ |
| weight | 51.5 g | 31 g |
| thickness | 10.7 | 12.3 |
| resolution | 396 x 484 px | 408 x 408 px |
| screen size | 1.9 inches | 1.2 inches |
| Display type | OLED/AMOLED | OLED/AMOLED |
| Has a display | Yes | Yes |
| pixel density | 329 ppi | 320 ppi |
| water resistance | Waterproof | Waterproof |
| Always-On Display | Yes | Yes |
| has a touch screen | Yes | Yes |
| is designed for kids | No | — |
| waterproof depth rating | 50 m | 50 m |
| Watch band is replaceable | Yes | Yes |
| Has sapphire glass display | No | No |
| Ingress Protection (IP) rating | IP68 | IP68 |
| has branded damage-resistant glass | No | Yes |
| ATM rating | — | 5 ATM |
| Gorilla Glass version | — | Gorilla Glass 5 |
| Battery | ||
| charge time | 1.2 hours | 1.25 hours |
| battery life | 0.75 days | 1.25 days |
| has wireless charging | Yes | 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 | 36 hours | 48 hours |
| battery power | — | 325 mAh |
| 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 | Yes |
| 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 | 1GB | 2GB |
| release date | 2023-09-12 | 2025-08-20 |
| Has a stopwatch | Yes | Yes |
| Has smart alarm | No | No |
| warranty period | 1 years | 1 years |
| Has call control | Yes | Yes |
| Has silent alarm | Yes | Yes |
| has HRV tracking | Yes | Yes |
| internal storage | 64GB | 32GB |
| measures VO2 max | Yes | Yes |
| Has notifications | Yes | Yes |
| Has ECG technology | Yes | Yes |
| Locates your phone | Yes | Yes |
| has a front camera | No | — |
| has fall detection | Yes | Yes |
| has voice commands | Yes | Yes |
| Acquires GPS faster | No | No |
| Has vibrating alerts | Yes | Yes |
| number of microphones | 1 | — |
| shows readiness level | No | 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 | 1 eSIM |
| Wi-Fi version | Wi-Fi 4 (802.11n) | Wi-Fi 4 (802.11n), Wi-Fi 5 (802.11ac), Wi-Fi 6 (802.11ax) |
| supports ANT+ | No | — |
| supports Wi-Fi | Yes | Yes |
| supports Galileo | Yes | Yes |
| Bluetooth version | 5.3 | 6 |
| has a cellular module | Yes | Yes |
| Is compatible with iOS | Yes | No |
| Is compatible with Android | No | Yes |
| Miscellaneous | ||
| has aptX | No | — |
| Has passcode | Yes | Yes |
| Has auto pause | Yes | — |
| has crash detection | 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 | — |
| 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 | — |
| App & Software | ||
| Ad-free | Yes | Yes |
| Free app | Yes | Yes |
| Has coaching | No | Yes |
| Has achievements | Yes | Yes |
| Has goal setting | 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 |
| Provides activity reports | Yes | Yes |
| Counts how many calories you've burned | Yes | Yes |
| Includes maps | — | Yes |
| Supports routes | — | Yes |
| Has live tracking | — | Yes |
| Doesn’t require account | — | No |
| Displays fertile window notifications | — | Yes |
| Activity tracking | ||
| Measures pace | Yes | Yes |
| Tracks distance | Yes | Yes |
| Tracks elevation | Yes | Yes |
| Designed for golf | No | No |
| Tracks your sleep | Yes | Yes |
| Tracks steps taken | Yes | Yes |
| Designed for diving | No | No |
| Has a route tracker | Yes | Yes |
| Has exercise tagging | Yes | Yes |
| Has multi-sport mode | Yes | No |
| Tracks calorie intake | Yes | Yes |
| Provides sleep reports | Yes | Yes |
| Detects activities automatically | Yes | Yes |
| Has a stroke counter for swimming | Yes | No |
Wrist Fit
Apple Watch Series 9 - Stainless Steel · 45mm
Sits best on wrists ~47–64mm wide (≈ 12.6–17.1cm circumference).
Google Pixel Watch 4 - 41mm
Sits best on wrists ~43–59mm wide (≈ 11.5–15.8cm circumference).
Frequently Asked Questions
Is the Apple Watch Series 9 - Stainless Steel · 45mm bigger than the Google Pixel Watch 4 - 41mm?
The Google Pixel Watch 4 - 41mm is bigger — 41mm vs 38mm case width.
Which fits a smaller wrist better, the Apple Watch Series 9 - Stainless Steel · 45mm or the Google Pixel Watch 4 - 41mm?
The Apple Watch Series 9 - Stainless Steel · 45mm suits wrists around 47–64mm wide, and the Google Pixel Watch 4 - 41mm around 43–59mm. The one with the smaller lower bound is the safer pick for a small wrist.
Can I see the Apple Watch Series 9 - Stainless Steel · 45mm and Google Pixel Watch 4 - 41mm 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.