Garmin
Device summary
OnePlus
OnePlus Watch 3 43mm
Full specifications
| Basic information | ||
|---|---|---|
| Release year | 2024 | 2025 |
| Starting price | — | — |
| Display size | 1.2-inch | 1.3-inch |
| Dimensions | 43.0 mm × 43.0 mm × 11.6 mm | 43.2 mm × 43.2 mm × 11.0 mm |
| Weight | 39 g | 38 g |
| Front material | — | 2.5D glass |
| Back material | — | — |
| Display | ||
| Display technology | AMOLED | AMOLED |
| Resolution | 390 × 390 | 466 × 466 |
| Protection | — | 2.5D glass |
| Performance | ||
| Chipset | — | Snapdragon W5 Gen 1 + BES2800BP MCU |
| Expandable storage | — | No |
| Battery & charging | ||
| Charging standard | Garmin proprietary clip / USB charging | Magnetic charging (≈1 hour to full) |
| Battery type | Lithium-ion | Lithium-ion |
| Typical capacity | — | 354 mAh |
| Rated capacity | — | 345 mAh |
| Connectivity | ||
| Cellular | GPS / multi-GNSS | GPS / multi-GNSS (Beidou, GPS, Galileo, GLONASS, QZSS) |
| Bluetooth | Bluetooth | Bluetooth 5.2 |
| NFC | Yes | Yes |
| Build & durability | ||
| Frame | Fiber-reinforced polymer | Stainless steel |
| Ingress protection | 5 ATM | 5 ATM / IP68 |
| Basic information | ||
|---|---|---|
| Release year | 2024 | 2025 |
| Starting price | — | — |
| Display size | 1.2-inch | 1.3-inch |
| Dimensions | 43.0 mm × 43.0 mm × 11.6 mm | 43.2 mm × 43.2 mm × 11.0 mm |
| Weight | 39 g | 38 g |
| Front material | — | 2.5D glass |
| Back material | — | — |
| Display | ||
| Display technology | AMOLED | AMOLED |
| Resolution | 390 × 390 | 466 × 466 |
| Protection | — | 2.5D glass |
| Performance | ||
| Chipset | — | Snapdragon W5 Gen 1 + BES2800BP MCU |
| Expandable storage | — | No |
| Battery & charging | ||
| Charging standard | Garmin proprietary clip / USB charging | Magnetic charging (≈1 hour to full) |
| Battery type | Lithium-ion | Lithium-ion |
| Typical capacity | — | 354 mAh |
| Rated capacity | — | 345 mAh |
| Connectivity | ||
| Cellular | GPS / multi-GNSS | GPS / multi-GNSS (Beidou, GPS, Galileo, GLONASS, QZSS) |
| Bluetooth | Bluetooth | Bluetooth 5.2 |
| NFC | Yes | Yes |
| Build & durability | ||
| Frame | Fiber-reinforced polymer | Stainless steel |
| Ingress protection | 5 ATM | 5 ATM / IP68 |
Key differences
The most meaningful measured gaps in size and weight — not an overall winner.
Thickness
OnePlus Watch 3 43mm
0.6 mm thinner
Display size
OnePlus Watch 3 43mm
0.1 in larger display · minor difference
Height
Very similar height
Width
Very similar width
What these size differences mean
Calculated from the dimensions shown, rounded to 0.1 mm and 1 g. Percentages use the smaller measurement as the reference. Fold and rotation settings affect the dimensions compared.
- OnePlus Watch 3 43mm is 0.2 mm (0.5% relative to Forerunner 165) wider. Check this difference against the width of your current device and pocket opening.
- OnePlus Watch 3 43mm is 0.2 mm (0.5% relative to Forerunner 165) taller. This describes the body outline; screen diagonal alone does not tell you the overall size.
- Forerunner 165 is 0.6 mm (5.5% relative to OnePlus Watch 3 43mm) thicker. Cases and camera protrusions can change the clearance you need.
- OnePlus Watch 3 43mm is 1 g lighter. This is the listed device-weight difference, not a measured comfort rating.
Use these figures to compare physical size. They do not establish one-handed reach, pocket fit, durability or an overall winner.
Sources and measurement notes
Sizometry compares published specifications and calculates differences. These are not hands-on measurements or tests of comfort, performance or pocket fit.
Forerunner 165
OnePlus Watch 3 43mm
Check the exact model, year, region and configuration on the linked page. References may cover several variants. Folded and unfolded dimensions differ; cases and camera protrusions may change the space a device needs. Drawings share a relative scale and are not calibrated to life size on your screen.