Samsung
Galaxy Watch Ultra 2 vs OPPO Watch X3
Device summary
OPPO
OPPO Watch X3
Full specifications
| Basic information | ||
|---|---|---|
| Release year | 2026 | 2026 |
| Starting price | — | — |
| Display size | 1.5-inch | 1.5-inch |
| Dimensions | 47.4 mm × 47.1 mm × 10.7 mm | 47.4 mm × 47.4 mm × 11.0 mm |
| Weight | 62 g | 43 g |
| Front material | Sapphire crystal | Sapphire crystal |
| Back material | — | PA with fiberglass |
| Display | ||
| Display technology | Super AMOLED | LTPO AMOLED |
| Resolution | 498 × 498 | 466 × 466 |
| Peak brightness | 5000 nits | 3000 nits |
| Protection | Sapphire crystal | Sapphire crystal |
| Performance | ||
| Chipset | Qualcomm Snapdragon Wear Elite (SDW6100) | Snapdragon W5 + BES2800BP MCU |
| RAM | 2 GB | 2 GB |
| Storage | 64 GB | 32 GB |
| Expandable storage | No | No |
| Battery & charging | ||
| Battery capacity | 800 mAh | — |
| Charging standard | Wireless charging (WPC) with Fast Charging | Watch VOOC Flash Charge (~75 min; 10 min ≈ 1 day) |
| Battery type | Lithium-ion | Lithium-ion (silicon-carbon) |
| Typical capacity | — | 646 mAh |
| Rated capacity | — | 632 mAh |
| Connectivity | ||
| Cellular | LTE, Dual-frequency GPS (L1+L5) | Dual-band GPS L1+L5 / multi-GNSS |
| Wi‑Fi | Wi‑Fi 6 | WLAN 2.4 / 5 GHz |
| Bluetooth | Bluetooth 6.0 | Bluetooth 5.2 |
| NFC | Yes | Yes |
| Build & durability | ||
| Frame | Titanium | Titanium alloy (TC4) |
| Ingress protection | 10ATM+ / IP69K / EN13319 | 5 ATM / IP68 / IP69 / MIL-STD-810H |
Basic information
Release year
- Galaxy Watch Ultra 2
- 2026
- OPPO Watch X3
- 2026
Starting price
- Galaxy Watch Ultra 2
- —
- OPPO Watch X3
- —
Display size
- Galaxy Watch Ultra 2
- 1.5-inch
- OPPO Watch X3
- 1.5-inch
Dimensions
- Galaxy Watch Ultra 2
- 47.4 mm × 47.1 mm × 10.7 mm
- OPPO Watch X3
- 47.4 mm × 47.4 mm × 11.0 mm
Weight
- Galaxy Watch Ultra 2
- 62 g
- OPPO Watch X3
- 43 g
Front material
- Galaxy Watch Ultra 2
- Sapphire crystal
- OPPO Watch X3
- Sapphire crystal
Back material
- Galaxy Watch Ultra 2
- —
- OPPO Watch X3
- PA with fiberglass
Display
Display technology
- Galaxy Watch Ultra 2
- Super AMOLED
- OPPO Watch X3
- LTPO AMOLED
Resolution
- Galaxy Watch Ultra 2
- 498 × 498
- OPPO Watch X3
- 466 × 466
Peak brightness
- Galaxy Watch Ultra 2
- 5000 nits
- OPPO Watch X3
- 3000 nits
Protection
- Galaxy Watch Ultra 2
- Sapphire crystal
- OPPO Watch X3
- Sapphire crystal
Performance
Chipset
- Galaxy Watch Ultra 2
- Qualcomm Snapdragon Wear Elite (SDW6100)
- OPPO Watch X3
- Snapdragon W5 + BES2800BP MCU
RAM
- Galaxy Watch Ultra 2
- 2 GB
- OPPO Watch X3
- 2 GB
Storage
- Galaxy Watch Ultra 2
- 64 GB
- OPPO Watch X3
- 32 GB
Expandable storage
- Galaxy Watch Ultra 2
- No
- OPPO Watch X3
- No
Battery & charging
Battery capacity
- Galaxy Watch Ultra 2
- 800 mAh
- OPPO Watch X3
- —
Charging standard
- Galaxy Watch Ultra 2
- Wireless charging (WPC) with Fast Charging
- OPPO Watch X3
- Watch VOOC Flash Charge (~75 min; 10 min ≈ 1 day)
Battery type
- Galaxy Watch Ultra 2
- Lithium-ion
- OPPO Watch X3
- Lithium-ion (silicon-carbon)
Typical capacity
- Galaxy Watch Ultra 2
- —
- OPPO Watch X3
- 646 mAh
Rated capacity
- Galaxy Watch Ultra 2
- —
- OPPO Watch X3
- 632 mAh
Connectivity
Cellular
- Galaxy Watch Ultra 2
- LTE, Dual-frequency GPS (L1+L5)
- OPPO Watch X3
- Dual-band GPS L1+L5 / multi-GNSS
Wi‑Fi
- Galaxy Watch Ultra 2
- Wi‑Fi 6
- OPPO Watch X3
- WLAN 2.4 / 5 GHz
Bluetooth
- Galaxy Watch Ultra 2
- Bluetooth 6.0
- OPPO Watch X3
- Bluetooth 5.2
NFC
- Galaxy Watch Ultra 2
- Yes
- OPPO Watch X3
- Yes
Build & durability
Frame
- Galaxy Watch Ultra 2
- Titanium
- OPPO Watch X3
- Titanium alloy (TC4)
Ingress protection
- Galaxy Watch Ultra 2
- 10ATM+ / IP69K / EN13319
- OPPO Watch X3
- 5 ATM / IP68 / IP69 / MIL-STD-810H
Key differences
The most meaningful measured gaps in size and weight — not an overall winner.
Weight
OPPO Watch X3
19 g lighter
Thickness
Galaxy Watch Ultra 2
0.3 mm thinner · minor difference
Height
Very similar height
Width
Very similar width