Samsung
Galaxy Watch Ultra vs Xiaomi Watch S4
Device summary
Xiaomi
Xiaomi Watch S4
Full specifications
| Basic information | ||
|---|---|---|
| Release year | 2024 | 2024 |
| Starting price | — | — |
| Display size | 1.5-inch | 1.4-inch |
| Dimensions | 47.4 mm × 47.1 mm × 12.1 mm | 47.3 mm × 47.3 mm × 12.0 mm |
| Weight | 61 g | 45 g |
| Front material | Sapphire crystal | — |
| Back material | — | — |
| Display | ||
| Display technology | Super AMOLED | AMOLED |
| Resolution | 480 × 480 | 466 × 466 |
| Peak brightness | 3000 nits | — |
| Protection | Sapphire crystal | — |
| Performance | ||
| Chipset | Exynos W1000 (5 Core, 3nm) | — |
| RAM | 2 GB | — |
| Storage | 32 GB | — |
| Expandable storage | No | No |
| Battery & charging | ||
| Battery capacity | 590 mAh | — |
| Charging standard | Wireless charging (WPC) with Fast Charging | Magnetic charging dock |
| Battery type | Lithium-ion | Lithium-ion polymer |
| Connectivity | ||
| Cellular | LTE, Dual-frequency GPS (L1+L5) | GPS / multi-GNSS |
| Wi‑Fi | Wi‑Fi 2.4GHz & 5GHz | — |
| Bluetooth | Bluetooth 5.3 | Bluetooth |
| NFC | Yes | Yes |
| Build & durability | ||
| Frame | Titanium (Grade 4) | — |
| Ingress protection | 10ATM / IP68 / MIL-STD-810H | 5 ATM |
Basic information
Release year
- Galaxy Watch Ultra
- 2024
- Xiaomi Watch S4
- 2024
Starting price
- Galaxy Watch Ultra
- —
- Xiaomi Watch S4
- —
Display size
- Galaxy Watch Ultra
- 1.5-inch
- Xiaomi Watch S4
- 1.4-inch
Dimensions
- Galaxy Watch Ultra
- 47.4 mm × 47.1 mm × 12.1 mm
- Xiaomi Watch S4
- 47.3 mm × 47.3 mm × 12.0 mm
Weight
- Galaxy Watch Ultra
- 61 g
- Xiaomi Watch S4
- 45 g
Front material
- Galaxy Watch Ultra
- Sapphire crystal
- Xiaomi Watch S4
- —
Back material
- Galaxy Watch Ultra
- —
- Xiaomi Watch S4
- —
Display
Display technology
- Galaxy Watch Ultra
- Super AMOLED
- Xiaomi Watch S4
- AMOLED
Resolution
- Galaxy Watch Ultra
- 480 × 480
- Xiaomi Watch S4
- 466 × 466
Peak brightness
- Galaxy Watch Ultra
- 3000 nits
- Xiaomi Watch S4
- —
Protection
- Galaxy Watch Ultra
- Sapphire crystal
- Xiaomi Watch S4
- —
Performance
Chipset
- Galaxy Watch Ultra
- Exynos W1000 (5 Core, 3nm)
- Xiaomi Watch S4
- —
RAM
- Galaxy Watch Ultra
- 2 GB
- Xiaomi Watch S4
- —
Storage
- Galaxy Watch Ultra
- 32 GB
- Xiaomi Watch S4
- —
Expandable storage
- Galaxy Watch Ultra
- No
- Xiaomi Watch S4
- No
Battery & charging
Battery capacity
- Galaxy Watch Ultra
- 590 mAh
- Xiaomi Watch S4
- —
Charging standard
- Galaxy Watch Ultra
- Wireless charging (WPC) with Fast Charging
- Xiaomi Watch S4
- Magnetic charging dock
Battery type
- Galaxy Watch Ultra
- Lithium-ion
- Xiaomi Watch S4
- Lithium-ion polymer
Connectivity
Cellular
- Galaxy Watch Ultra
- LTE, Dual-frequency GPS (L1+L5)
- Xiaomi Watch S4
- GPS / multi-GNSS
Wi‑Fi
- Galaxy Watch Ultra
- Wi‑Fi 2.4GHz & 5GHz
- Xiaomi Watch S4
- —
Bluetooth
- Galaxy Watch Ultra
- Bluetooth 5.3
- Xiaomi Watch S4
- Bluetooth
NFC
- Galaxy Watch Ultra
- Yes
- Xiaomi Watch S4
- Yes
Build & durability
Frame
- Galaxy Watch Ultra
- Titanium (Grade 4)
- Xiaomi Watch S4
- —
Ingress protection
- Galaxy Watch Ultra
- 10ATM / IP68 / MIL-STD-810H
- Xiaomi Watch S4
- 5 ATM
Key differences
The most meaningful measured gaps in size and weight — not an overall winner.
Weight
Xiaomi Watch S4
16 g lighter
Height
Very similar height
Width
Very similar width
Thickness
Very similar thickness