Samsung Galaxy Watch 3: specs, who it fits and compatible phones
Galaxy Watch 3 is a smartwatch released in 2020 that works with Android. It lists Standard GPS, 5ATM · IP68 and Samsung Wallet.
Specifications
| Release year | 2020 |
|---|---|
| Case size | 41 / 45 mm |
| Display | AMOLED, Always-On |
| Battery as listed | 2 days (247/340mAh) (approx.) |
| Water rating | 5ATM · IP68 |
| Glass | Gorilla Glass DX |
| Case material | Stainless steel / titanium |
| GPS type | Standard GPS |
| Operating system | Tizen 5.5 (updates ended) |
| Works with | Android |
| Connection | eSIM · LTE |
| Contactless wallet | Samsung Wallet |
| Plan needed | None |
| Health sensors | SpO2, ECG, Blood pressure |
| 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 Samsung
| Model | Release year | Case size | Battery as listed | Water rating | GPS type | Works with |
|---|---|---|---|---|---|---|
| Galaxy Watch 5 | 2022 | 40 / 44 mm | 40 hours (284/410mAh) (approx.) | 5ATM · IP68 | Standard GPS | Android only |
| Galaxy Watch 5 Pro | 2022 | 45 mm | 80 hours (590mAh) (approx.) | 5ATM · IP68 | Standard GPS | Android only |
| Galaxy Watch 6 | 2023 | 40 / 44 mm | 40 hours (300/425mAh) (approx.) | 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 |
|---|---|---|---|---|---|---|
| Pixel Watch (1st gen) | 2022 | 41 mm | Up to 24 hours | 5ATM | Standard GPS | Android only |
| Pixel Watch 2 | 2023 | 41 mm | 24 hours with Always-On | 5ATM · IP68 | Standard GPS | 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 |
Compared with Galaxy Watch 5, Galaxy Watch 3 lists an older release year (2020 against 2022), Stainless steel / titanium case material, where Galaxy Watch 5 lists Aluminum and Gorilla Glass DX glass, where Galaxy Watch 5 lists Sapphire.
Compared with Galaxy Watch 5 Pro, Galaxy Watch 3 lists an older release year (2020 against 2022), Stainless steel / titanium case material, where Galaxy Watch 5 Pro lists Titanium and Gorilla Glass DX glass, where Galaxy Watch 5 Pro lists Sapphire.
Compared with Galaxy Watch 6, Galaxy Watch 3 lists an older release year (2020 against 2023), Stainless steel / titanium case material, where Galaxy Watch 6 lists Aluminum and Gorilla Glass DX glass, where Galaxy Watch 6 lists Sapphire.
Compared with Pixel Watch (1st gen), Galaxy Watch 3 lists an older release year (2020 against 2022) and Stainless steel / titanium case material, where Pixel Watch (1st gen) lists Stainless steel.
Compared with Pixel Watch 2, Galaxy Watch 3 lists an older release year (2020 against 2023) and Stainless steel / titanium case material, where Pixel Watch 2 lists Recycled aluminum.
Compared with Pixel Watch 3, Galaxy Watch 3 lists an older release year (2020 against 2024) and Stainless steel / titanium case material, where Pixel Watch 3 lists Recycled aluminum.
Only values listed exactly are compared.
Phone compatibility and plan
No plan is listed as needed. 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.
Also available: Galaxy Watch 5 Pro, which differs in a newer release year (2022 against 2020), Titanium case material, where Galaxy Watch 3 lists Stainless steel / titanium and Sapphire glass, where Galaxy Watch 3 lists Gorilla Glass DX.
Related guides and lists
- Battery life explained
- Phone compatibility
- Water resistance ratings
- Sensors explained
- Samsung smartwatches
- All models
Last verified September 26, 2026
Features change with updates. Check the maker's current details. See our methodology