OnePlus Ace 6 Ultra vs Samsung Galaxy S25
The Verdict
The OnePlus Ace 6 Ultra and Samsung Galaxy S25 sit in the same category and end up appealing to slightly different buyers. The OnePlus Ace 6 Ultra is the cheaper of the two at $490 versus $800, a difference of about $310. The OnePlus Ace 6 Ultra is the newer release, which usually means a faster chipset and longer software support. OnePlus Ace 6 Ultra stands out for 8600 mah battery provides exceptional endurance, while Samsung Galaxy S25 is praised for compact and pocketable flagship. Use the side-by-side spec table below to compare cameras, displays, battery life and connectivity in detail and decide which one fits your priorities.
Who Should Buy
Buy the OnePlus Ace 6 Ultra if…
- →8600 mAh battery provides exceptional endurance
- →Dimensity 9500 delivers flagship performance at competitive pricing
- →6.82-inch AMOLED display with 4500 nits peak brightness
Buy the Samsung Galaxy S25 if…
- →Compact and pocketable flagship
- →Same Snapdragon 8 Elite as the Ultra model
- →12 GB RAM upgraded from prior generation
Pros & Cons
OnePlus Ace 6 Ultra
Pros
- 8600 mAh battery provides exceptional endurance
- Dimensity 9500 delivers flagship performance at competitive pricing
- 6.82-inch AMOLED display with 4500 nits peak brightness
- Triple 50MP camera system with consistent image quality
- IP69 rating offers robust dust and water resistance
- 100W wired charging enables rapid refueling
Cons
- Dimensity 9500 lags behind Snapdragon 8 Gen 4 in some benchmarks
- 221g weight feels heavy for extended one-handed use
- No microSD card slot for storage expansion
- Availability limited to select Asian markets
- Camera stabilization could be stronger in low light
Samsung Galaxy S25
Pros
- Compact and pocketable flagship
- Same Snapdragon 8 Elite as the Ultra model
- 12 GB RAM upgraded from prior generation
- Excellent 120Hz AMOLED display
- Long 7-year software support promise
Cons
- Small 4000 mAh battery limits endurance
- Slow 25W charging
- 1080p resolution instead of QHD
- No major camera hardware upgrades
Full Specifications
| Spec | OnePlus Ace 6 Ultra | Samsung Galaxy S25 |
|---|---|---|
| Camera | ||
| Main camera | 50MP f/1.6 | 50 MP, f/1.8, OIS |
| Front camera | 32MP f/2.4 | 12 MP, f/2.2 |
| Telephoto | 50MP f/2.0 (3x) | 10 MP 3x optical |
| Ultrawide | 50MP f/2.0 | 12 MP, f/2.2 |
| Video | — | 8K@30fps, 4K@60fps |
| Design | ||
| Colors | Black, White, Gold | — |
| Weight | 221g | — |
| IP rating | IP69 | — |
| Battery | ||
| Capacity | 8600 mAh | 4000 mAh |
| Charging Speed | 100W wired | — |
| Wireless Charging | — | |
| Charging | — | 25W wired |
| Wireless charging | — | 15W Qi2 |
| Display | ||
| Size | 6.82 inches | 6.2 inches |
| Type | AMOLED | Dynamic AMOLED 2X LTPO |
| Brightness | 4500 nits peak | — |
| Resolution | 1440 x 3168 pixels | 2340 x 1080 |
| Refresh rate | 120 Hz | 120Hz |
| Brightness (nits) | — | 2600 |
| Performance | ||
| RAM | 12GB / 16GB | — |
| Chipset | MediaTek Dimensity 9500 | — |
| Storage | 256GB / 512GB | — |
| Software | — | Android 15, One UI 7 |
| Body | ||
| Weight | — | 162 g |
| Material | — | Aluminum frame, Gorilla Glass Victus 2 |
| IP rating | — | IP68 |
| Dimensions | — | 146.9 x 70.5 x 7.2 mm |
| Memory | ||
| RAM | — | 12 GB |
| Storage options | — | 128 GB, 256 GB, 512 GB |
| Processor | ||
| CPU | — | Octa-core (2x4.47 GHz + 6x3.53 GHz) |
| GPU | — | Adreno 830 |
| Chipset | — | Snapdragon 8 Elite for Galaxy |
| Connectivity | ||
| 5G | — | |
| NFC | — | |
| USB | — | USB-C 3.2 |
| Wi-Fi | — | Wi-Fi 7 |
| Bluetooth | — | 5.4 |
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