Google Pixel Watch 4: specs, who it fits and compatible phones
Pixel Watch 4 is a smartwatch released in 2025 that works with Android. It lists Dual-band GNSS, 5ATM · IP68 and Google Wallet.
Specifications
| Release year | 2025 |
|---|---|
| Case size | 41 / 45 mm |
| Brightness | 3000 nits |
| Battery as listed | Up to 30 hours (41) · 40 hours (45) |
| Water rating | 5ATM · IP68 |
| Glass | Gorilla Glass |
| Case material | Aluminum |
| GPS type | Dual-band GNSS |
| Operating system | Wear OS |
| Works with | Android |
| Connection | eSIM · LTE |
| Contactless wallet | Google Wallet |
| Plan needed | Optional |
| Health sensors | SpO2, HRV, Skin temperature, ECG |
| Safety features | SOS, Fall detection |
Who it fits
- Works with Android.
- Lists SOS or fall detection, see our guide for older adults.
- Lists an exact water rating of 5ATM or higher.
How it compares
Closest models from Google
| Model | Release year | Case size | Battery as listed | Water rating | GPS type | Works with |
|---|---|---|---|---|---|---|
| Pixel Watch 5 | 2026 | 41 / 45 mm | 30 hours (41) · 40 hours (45) | 5ATM · IP68 | Dual-band GNSS | Android only |
| Pixel Watch 3 | 2024 | 41 / 45 mm | 24 hours (36 hours in saver mode; longer on the 45 mm) | 5ATM · IP68 | Standard GPS | Android only |
| Pixel Watch 2 | 2023 | 41 mm | 24 hours with Always-On | 5ATM · IP68 | Standard GPS | Android only |
Closest models from other brands
| Model | Release year | Case size | Battery as listed | Water rating | GPS type | Works with |
|---|---|---|---|---|---|---|
| Galaxy Watch 8 | 2025 | 40 / 44 mm | Up to 29 hours (AOD) (approx.) | 5ATM · IP68 | Dual-band GNSS | Android only |
| Galaxy Watch 8 Classic | 2025 | 46 mm | Up to 34 hours (AOD) (approx.) | 5ATM · IP68 | Dual-band GNSS | Android only |
| Galaxy Watch 7 | 2024 | 40 / 44 mm | 40 hours (300/425mAh) (approx.) | 5ATM · IP68 | Dual-band GNSS + maps | Android only |
Compared with Pixel Watch 5, Pixel Watch 4 lists an older release year (2025 against 2026) and Aluminum case material, where Pixel Watch 5 lists Recycled aluminum.
Compared with Pixel Watch 3, Pixel Watch 4 lists dual-band GPS, where Pixel Watch 3 lists single-band, a newer release year (2025 against 2024) and a brighter listed display (3000 nits against 2000).
Compared with Pixel Watch 2, Pixel Watch 4 lists dual-band GPS, where Pixel Watch 2 lists single-band, a newer release year (2025 against 2023) and a brighter listed display (3000 nits against 1000).
Compared with Galaxy Watch 8, Pixel Watch 4 lists Gorilla Glass glass, where Galaxy Watch 8 lists Sapphire and case sizes of 41 / 45 mm against 40 / 44 mm.
Compared with Galaxy Watch 8 Classic, Pixel Watch 4 lists Aluminum case material, where Galaxy Watch 8 Classic lists Stainless steel and Gorilla Glass glass, where Galaxy Watch 8 Classic lists Sapphire.
Compared with Galaxy Watch 7, Pixel Watch 4 lists a newer release year (2025 against 2024), Gorilla Glass glass, where Galaxy Watch 7 lists Sapphire and case sizes of 41 / 45 mm against 40 / 44 mm.
Only values listed exactly are compared.
Phone compatibility and plan
An optional plan adds features. Check the maker's page for terms. Has eSIM or LTE, so it can work without the phone if you add a carrier plan.
Sensors and features are listed as the maker names them and are not medical measurements.
Related guides and lists
- Battery life explained
- Phone compatibility
- Water resistance ratings
- Sensors explained
- Google smartwatches
- All models
Last verified September 26, 2026
Features change with updates. Check the maker's current details. See our methodology