Samsung
Device summary
Samsung
Galaxy Watch9 40mm
Full specifications
| Basic information | ||
|---|---|---|
| Release year | 2025 | 2026 |
| Starting price | — | — |
| Display size | 1.3-inch | 1.3-inch |
| Dimensions | 40.4 mm × 42.7 mm × 8.6 mm | 40.4 mm × 42.7 mm × 8.6 mm |
| Weight | 30 g | 32 g |
| Front material | Sapphire crystal | Sapphire crystal |
| Back material | — | — |
| Display | ||
| Display technology | Super AMOLED | Super AMOLED |
| Resolution | 438 × 438 | 438 × 438 |
| Peak brightness | 3000 nits | 3000 nits |
| Protection | Sapphire crystal | Sapphire crystal |
| Performance | ||
| Chipset | Exynos W1000 (5 Core, 3nm) | Qualcomm Snapdragon Wear Elite (SDW6100) |
| RAM | 2 GB | 2 GB |
| Storage | 32 GB | 32 GB |
| Expandable storage | No | No |
| Battery & charging | ||
| Charging standard | Wireless charging (WPC) with Fast Charging | Wireless charging (WPC) with Fast Charging |
| Battery type | Lithium-ion | Lithium-ion |
| Battery capacity | 325 mAh | 390 mAh |
| Connectivity | ||
| Cellular | LTE (optional models), Dual-frequency GPS (L1+L5) | LTE (optional models), Dual-frequency GPS (L1+L5) |
| Wi‑Fi | Wi‑Fi 2.4GHz & 5GHz | Wi-Fi 2.4GHz+5GHz |
| Bluetooth | Bluetooth 5.3 | Bluetooth 6.0 |
| NFC | Yes | Yes |
| Build & durability | ||
| Frame | Armor aluminum | Aluminum |
| Ingress protection | 5ATM / IP68 / MIL-STD-810H | 5ATM / IP68 / MIL-STD-810H |
| Basic information | ||
|---|---|---|
| Release year | 2025 | 2026 |
| Starting price | — | — |
| Display size | 1.3-inch | 1.3-inch |
| Dimensions | 40.4 mm × 42.7 mm × 8.6 mm | 40.4 mm × 42.7 mm × 8.6 mm |
| Weight | 30 g | 32 g |
| Front material | Sapphire crystal | Sapphire crystal |
| Back material | — | — |
| Display | ||
| Display technology | Super AMOLED | Super AMOLED |
| Resolution | 438 × 438 | 438 × 438 |
| Peak brightness | 3000 nits | 3000 nits |
| Protection | Sapphire crystal | Sapphire crystal |
| Performance | ||
| Chipset | Exynos W1000 (5 Core, 3nm) | Qualcomm Snapdragon Wear Elite (SDW6100) |
| RAM | 2 GB | 2 GB |
| Storage | 32 GB | 32 GB |
| Expandable storage | No | No |
| Battery & charging | ||
| Charging standard | Wireless charging (WPC) with Fast Charging | Wireless charging (WPC) with Fast Charging |
| Battery type | Lithium-ion | Lithium-ion |
| Battery capacity | 325 mAh | 390 mAh |
| Connectivity | ||
| Cellular | LTE (optional models), Dual-frequency GPS (L1+L5) | LTE (optional models), Dual-frequency GPS (L1+L5) |
| Wi‑Fi | Wi‑Fi 2.4GHz & 5GHz | Wi-Fi 2.4GHz+5GHz |
| Bluetooth | Bluetooth 5.3 | Bluetooth 6.0 |
| NFC | Yes | Yes |
| Build & durability | ||
| Frame | Armor aluminum | Aluminum |
| Ingress protection | 5ATM / IP68 / MIL-STD-810H | 5ATM / IP68 / MIL-STD-810H |
Key differences
The most meaningful measured gaps in size and weight — not an overall winner.
Height
Very similar height
Width
Very similar width
Thickness
Very similar thickness
Weight
Very similar weight
Height, width, thickness, and weight are very similar between these devices.