Samsung
Galaxy Watch8 40mm vs Galaxy Watch 9 40mm
Device summary
Samsung
Galaxy Watch 9 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 | ||
| Battery capacity | 325 mAh | 390 mAh |
| Charging standard | Wireless charging (WPC) with Fast Charging | Wireless charging (WPC) with Fast Charging |
| Battery type | Lithium-ion | Lithium-ion |
| 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 6 |
| 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
- Galaxy Watch8 40mm
- 2025
- Galaxy Watch 9 40mm
- 2026
Starting price
- Galaxy Watch8 40mm
- —
- Galaxy Watch 9 40mm
- —
Display size
- Galaxy Watch8 40mm
- 1.3-inch
- Galaxy Watch 9 40mm
- 1.3-inch
Dimensions
- Galaxy Watch8 40mm
- 40.4 mm × 42.7 mm × 8.6 mm
- Galaxy Watch 9 40mm
- 40.4 mm × 42.7 mm × 8.6 mm
Weight
- Galaxy Watch8 40mm
- 30 g
- Galaxy Watch 9 40mm
- 32 g
Front material
- Galaxy Watch8 40mm
- Sapphire crystal
- Galaxy Watch 9 40mm
- Sapphire crystal
Back material
- Galaxy Watch8 40mm
- —
- Galaxy Watch 9 40mm
- —
Display
Display technology
- Galaxy Watch8 40mm
- Super AMOLED
- Galaxy Watch 9 40mm
- Super AMOLED
Resolution
- Galaxy Watch8 40mm
- 438 × 438
- Galaxy Watch 9 40mm
- 438 × 438
Peak brightness
- Galaxy Watch8 40mm
- 3000 nits
- Galaxy Watch 9 40mm
- 3000 nits
Protection
- Galaxy Watch8 40mm
- Sapphire crystal
- Galaxy Watch 9 40mm
- Sapphire crystal
Performance
Chipset
- Galaxy Watch8 40mm
- Exynos W1000 (5 Core, 3nm)
- Galaxy Watch 9 40mm
- Qualcomm Snapdragon Wear Elite (SDW6100)
RAM
- Galaxy Watch8 40mm
- 2 GB
- Galaxy Watch 9 40mm
- 2 GB
Storage
- Galaxy Watch8 40mm
- 32 GB
- Galaxy Watch 9 40mm
- 32 GB
Expandable storage
- Galaxy Watch8 40mm
- No
- Galaxy Watch 9 40mm
- No
Battery & charging
Battery capacity
- Galaxy Watch8 40mm
- 325 mAh
- Galaxy Watch 9 40mm
- 390 mAh
Charging standard
- Galaxy Watch8 40mm
- Wireless charging (WPC) with Fast Charging
- Galaxy Watch 9 40mm
- Wireless charging (WPC) with Fast Charging
Battery type
- Galaxy Watch8 40mm
- Lithium-ion
- Galaxy Watch 9 40mm
- Lithium-ion
Connectivity
Cellular
- Galaxy Watch8 40mm
- LTE (optional models), Dual-frequency GPS (L1+L5)
- Galaxy Watch 9 40mm
- LTE (optional models), Dual-frequency GPS (L1+L5)
Wi‑Fi
- Galaxy Watch8 40mm
- Wi‑Fi 2.4GHz & 5GHz
- Galaxy Watch 9 40mm
- Wi‑Fi 6
Bluetooth
- Galaxy Watch8 40mm
- Bluetooth 5.3
- Galaxy Watch 9 40mm
- Bluetooth 6.0
NFC
- Galaxy Watch8 40mm
- Yes
- Galaxy Watch 9 40mm
- Yes
Build & durability
Frame
- Galaxy Watch8 40mm
- Armor aluminum
- Galaxy Watch 9 40mm
- Aluminum
Ingress protection
- Galaxy Watch8 40mm
- 5ATM / IP68 / MIL-STD-810H
- Galaxy Watch 9 40mm
- 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.