COROS
Device summary
Garmin
Forerunner 165
Full specifications
| Basic information | ||
|---|---|---|
| Release year | 2025 | 2024 |
| Starting price | $249 | — |
| Display size | 1.2-inch | 1.2-inch |
| Dimensions | 43.4 mm × 43.4 mm × 11.8 mm | 43.0 mm × 43.0 mm × 11.6 mm |
| Weight | 32 g | 39 g |
| Front material | Mineral glass | — |
| Back material | Fiber-reinforced polymer | — |
| Display | ||
| Display technology | AMOLED | AMOLED |
| Resolution | 390 × 390 | 390 × 390 |
| Protection | Mineral glass | — |
| Performance | ||
| Chipset | All-satellite dual-frequency GNSS | — |
| Storage | 4 GB | — |
| Expandable storage | No | — |
| Battery & charging | ||
| Charging standard | Magnetic charging (<2 h). Daily use 19 days (6 days AOD); all-systems GPS 41 h (30 h AOD); dual-frequency GPS 31 h (24 h AOD); music modes shorter | Garmin proprietary clip / USB charging |
| Battery type | Lithium-ion | Lithium-ion |
| Connectivity | ||
| Cellular | GPS / GLONASS / Galileo / BeiDou / QZSS (dual-frequency), Breadcrumb maps, Microphone / Voice Pins | GPS / multi-GNSS |
| Wi‑Fi | Wi-Fi / COROS App | — |
| Bluetooth | Bluetooth | Bluetooth |
| NFC | — | Yes |
| Build & durability | ||
| Frame | Fiber-reinforced polymer | Fiber-reinforced polymer |
| Ingress protection | 5 ATM | 5 ATM |
| Basic information | ||
|---|---|---|
| Release year | 2025 | 2024 |
| Starting price | $249 | — |
| Display size | 1.2-inch | 1.2-inch |
| Dimensions | 43.4 mm × 43.4 mm × 11.8 mm | 43.0 mm × 43.0 mm × 11.6 mm |
| Weight | 32 g | 39 g |
| Front material | Mineral glass | — |
| Back material | Fiber-reinforced polymer | — |
| Display | ||
| Display technology | AMOLED | AMOLED |
| Resolution | 390 × 390 | 390 × 390 |
| Protection | Mineral glass | — |
| Performance | ||
| Chipset | All-satellite dual-frequency GNSS | — |
| Storage | 4 GB | — |
| Expandable storage | No | — |
| Battery & charging | ||
| Charging standard | Magnetic charging (<2 h). Daily use 19 days (6 days AOD); all-systems GPS 41 h (30 h AOD); dual-frequency GPS 31 h (24 h AOD); music modes shorter | Garmin proprietary clip / USB charging |
| Battery type | Lithium-ion | Lithium-ion |
| Connectivity | ||
| Cellular | GPS / GLONASS / Galileo / BeiDou / QZSS (dual-frequency), Breadcrumb maps, Microphone / Voice Pins | GPS / multi-GNSS |
| Wi‑Fi | Wi-Fi / COROS App | — |
| Bluetooth | Bluetooth | Bluetooth |
| NFC | — | Yes |
| Build & durability | ||
| Frame | Fiber-reinforced polymer | Fiber-reinforced polymer |
| Ingress protection | 5 ATM | 5 ATM |
Key differences
The most meaningful measured gaps in size and weight — not an overall winner.
Thickness
Forerunner 165
0.2 mm thinner · minor difference
Height
Very similar height
Width
Very similar width
Display size
Very similar display size