OnePlus Ace 6 Ultra vs Realme 15x
The OnePlus Ace 6 Ultra (2026) runs on the MediaTek Dimensity 9500, while the Realme 15x (2025) runs on the MediaTek Dimensity 6300; estimated prices are $555 and $250. By overall MobileRank rating, the OnePlus Ace 6 Ultra leads — 66/100 vs 37/100 (a 29-point difference). Key differences: the OnePlus Ace 6 Ultra has the bigger battery (8600 mAh vs 7000); the OnePlus Ace 6 Ultra is faster in AnTuTu (3,429,868 vs 524,785); the OnePlus Ace 6 Ultra has NFC for contactless payments, the Realme 15x doesn't.
OnePlus Ace 6 Ultra
Realme 15x
- Higher AnTuTu: 3429868 vs 524785
- Better Geekbench Single: 3228 vs 771
- Better Geekbench Multi: 9553 vs 1980
- Bigger battery: 8600 vs 7000 mAh
- Faster charging: 120W vs 60W
- Higher refresh rate: 165Hz vs 144Hz
- Higher performance (76/100 vs 0/100)
- Longer battery life (82/100 vs 60/100)
- Lighter: 212g vs 217g
- Cheaper: $250 vs $555
- Better camera (38/100 vs 31/100)
- Better design/ergonomics (35/100 vs 28/100)
- Better value for money (93/100 vs 72/100)
Comparing the OnePlus Ace 6 Ultra vs the Realme 15x, the OnePlus Ace 6 Ultra scores 29 points higher (66/100 vs 37/100). In the "performance" category, the OnePlus Ace 6 Ultra leads (76/100 vs 0/100). In the "battery" category, the OnePlus Ace 6 Ultra leads (82/100 vs 60/100). In the "value for money" category, the Realme 15x leads (93/100 vs 72/100). In the "performance" category, the OnePlus Ace 6 Ultra significantly outperforms the Realme 15x (76/100 vs 0/100). In the "display" category, both devices are on the same level — 100/100. In the "camera" category, the Realme 15x is a bit better (38/100 vs 31/100). In the "battery" category, the OnePlus Ace 6 Ultra notably outperforms the Realme 15x (82/100 vs 60/100). In the "design" category, the Realme 15x is a bit better (35/100 vs 28/100). In the "value for money" category, the Realme 15x notably outperforms the OnePlus Ace 6 Ultra (93/100 vs 72/100).
| Specification | OnePlus Ace 6 Ultra | Realme 15x | |
|---|---|---|---|
| Processor | MediaTek Dimensity 9500 | MediaTek Dimensity 6300 | |
| AnTuTu | 3429868 | 524785 | |
| Geekbench Single | 3228 | 771 | |
| Geekbench Multi | 9553 | 1980 | |
| Display | 6.8" AMOLED | 6.8" IPS LCD | |
| Resolution | 1272x2772 | 720x1570 | |
| Refresh rate | 165 Hz | 144 Hz | |
| Battery | 8600 mAh | 7000 mAh | |
| Charging | 120W | 60W | |
| Main camera | 50 MP | 50 MP | |
| Ultrawide | 8 MP | 0 MP | |
| Front camera | 16 MP | 50 MP | |
| RAM | 12GB / 16GB | 6GB / 8GB | |
| Storage | 256GB / 512GB / 1TB | 128GB / 256GB | |
| OS | Android 16 | Android 15 | |
| Brightness (peak) | 1800 nits | 1200 nits | |
| NFC | yes | no | |
| Protection | IP66 | IP68/IP69 | |
| Dimensions | 162.5×77.5×8.5 mm | 166.1×77.9×8.3 mm | |
| Weight | 217 g | 212 g | |
| Price | $555 | $250 |
OnePlus Ace 6 Ultra
- Main: 50MP f/f/1.8
- Ultrawide: 8MP
- Front: 16MP
Realme 15x
- Main: 50MP f/1.8
- Front: 50MP
OnePlus Ace 6 Ultra
- 6.8" AMOLED
- Resolution: 1272x2772
- Refresh rate: 165 Hz
Realme 15x
- 6.8" IPS LCD
- Resolution: 720x1570
- Refresh rate: 144 Hz
OnePlus Ace 6 Ultra
- 8600 mAh
- Wired: 120W
- No wireless charging
Realme 15x
- 7000 mAh
- Wired: 60W
- No wireless charging
We compared OnePlus Ace 6 Ultra and Realme 15x, covering their specs and all relevant benchmarks.
OnePlus Ace 6 Ultra leads Realme 15x by 553.6% in our overall performance rating.
Price difference: $305. Realme 15x is cheaper by $305.
performance
In the "performance" category, the OnePlus Ace 6 Ultra significantly outperforms the Realme 15x (76/100 vs 0/100).
display
In the "display" category, both devices are on the same level — 100/100.
camera
In the "camera" category, the Realme 15x is a bit better (38/100 vs 31/100).
battery
In the "battery" category, the OnePlus Ace 6 Ultra notably outperforms the Realme 15x (82/100 vs 60/100).
design
In the "design" category, the Realme 15x is a bit better (35/100 vs 28/100).
value for money
In the "value for money" category, the Realme 15x notably outperforms the OnePlus Ace 6 Ultra (93/100 vs 72/100).
Which is better: the OnePlus Ace 6 Ultra or the Realme 15x?
The OnePlus Ace 6 Ultra significantly outperforms the Realme 15x by 29 points (66/100 vs 37/100).
What is the rating of the OnePlus Ace 6 Ultra and the Realme 15x?
The OnePlus Ace 6 Ultra has a MobileRank rating of 66/100, the Realme 15x — 37/100.
Which has the better camera: the OnePlus Ace 6 Ultra or the Realme 15x?
The Realme 15x leads on camera score (38/100 vs 31/100).
Which is more powerful: the OnePlus Ace 6 Ultra or the Realme 15x?
The OnePlus Ace 6 Ultra leads on performance (76/100 vs 0/100).
Should you choose the OnePlus Ace 6 Ultra over the Realme 15x?
The OnePlus Ace 6 Ultra is a better fit for active users, those who care about battery life. The Realme 15x is a better fit for budget-conscious buyers.