OnePlus Ace 6 Ultra vs Samsung Galaxy S25 Ultra
The Verdict
The OnePlus Ace 6 Ultra and Samsung Galaxy S25 Ultra 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 $1,300, a difference of about $810. 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 Ultra is praised for class-leading 200 mp main camera with 5x periscope zoom. 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 Ultra if…
- →Class-leading 200 MP main camera with 5x periscope zoom
- →Built-in S Pen for note-taking and productivity
- →Bright 2600-nit display with Gorilla Glass Armor 2
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 Ultra
Pros
- Class-leading 200 MP main camera with 5x periscope zoom
- Built-in S Pen for note-taking and productivity
- Bright 2600-nit display with Gorilla Glass Armor 2
- Snapdragon 8 Elite delivers top-tier performance
- 7 years of OS and security updates
Cons
- Very expensive at $1299 starting price
- S Pen lost Bluetooth remote features
- Charging speed still capped at 45W
- Large and heavy for one-handed use
Full Specifications
| Spec | OnePlus Ace 6 Ultra | Samsung Galaxy S25 Ultra |
|---|---|---|
| Camera | ||
| Main camera | 50MP f/1.6 | 200 MP, f/1.7, OIS |
| Front camera | 32MP f/2.4 | 12 MP, f/2.2 |
| Telephoto | 50MP f/2.0 (3x) | 50 MP 5x periscope + 10 MP 3x |
| Ultrawide | 50MP f/2.0 | 50 MP, f/1.9 |
| Video | — | 8K@30fps, 4K@120fps |
| Design | ||
| Colors | Black, White, Gold | — |
| Weight | 221g | — |
| IP rating | IP69 | — |
| Battery | ||
| Capacity | 8600 mAh | 5000 mAh |
| Charging Speed | 100W wired | — |
| Wireless Charging | — | |
| Charging | — | 45W wired |
| Wireless charging | — | 15W Qi2 |
| Display | ||
| Size | 6.82 inches | 6.9 inches |
| Type | AMOLED | Dynamic AMOLED 2X LTPO |
| Brightness | 4500 nits peak | — |
| Resolution | 1440 x 3168 pixels | 3120 x 1440 |
| 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 | — | 218 g |
| Material | — | Titanium frame, Gorilla Glass Armor 2 |
| IP rating | — | IP68 |
| Dimensions | — | 162.8 x 77.6 x 8.2 mm |
| Memory | ||
| RAM | — | 12 GB |
| Storage options | — | 256 GB, 512 GB, 1 TB |
| 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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