OnePlus Ace 6 Ultra vs Redmi Note 15
The OnePlus Ace 6 Ultra (2026) runs on the MediaTek Dimensity 9500, while the Redmi Note 15 (2026) runs on the Qualcomm Snapdragon 6 Gen 3; launch prices were $555 and $229. By overall MobileRank rating, the OnePlus Ace 6 Ultra leads — 74/100 vs 57/100 (a 17-point difference). Key differences: the OnePlus Ace 6 Ultra has the bigger battery (8600 mAh vs 5520); the main camera is 50 MP vs 108 MP; the OnePlus Ace 6 Ultra is faster in AnTuTu (3,429,868 vs 825,374); the Redmi Note 15 is noticeably lighter (178g vs 217g).
Profile comparison
Category scores
OnePlus Ace 6 Ultra
Redmi Note 15
What makes OnePlus Ace 6 Ultra better?
- Higher AnTuTu: 3429868 vs 825374
- Better Geekbench Single: 3293 vs 1013
- Better Geekbench Multi: 10243 vs 3000
- Bigger battery: 8600 vs 5520 mAh
- Faster charging: 120W vs 45W
- Higher refresh rate: 165Hz vs 120Hz
- Higher performance (94/100 vs 55/100)
- Longer battery life (82/100 vs 54/100)
- Better display (94/100 vs 79/100)
What makes Redmi Note 15 better?
- Better main camera: 108MP vs 50MP
- Lighter: 178g vs 217g
- Cheaper at launch: $229 vs $555
- Better camera (46/100 vs 35/100)
- Better portability (79/100 vs 43/100)
Comparison verdict
Comparing the OnePlus Ace 6 Ultra vs the Redmi Note 15, the OnePlus Ace 6 Ultra scores 17 points higher (74/100 vs 57/100). In the "performance" category, the OnePlus Ace 6 Ultra leads (94/100 vs 55/100). In the "camera" category, the Redmi Note 15 leads (46/100 vs 35/100). In the "battery" category, the OnePlus Ace 6 Ultra leads (82/100 vs 54/100). Value score: OnePlus Ace 6 Ultra — 66/100, Redmi Note 15 — 68/100; it shows how far a model sits above or below the usual level for its price, and is not part of the overall rating. In the "performance" category, the OnePlus Ace 6 Ultra significantly outperforms the Redmi Note 15 (94/100 vs 55/100). In the "display" category, the OnePlus Ace 6 Ultra notably outperforms the Redmi Note 15 (94/100 vs 79/100). In the "camera" category, the Redmi Note 15 is a bit better (46/100 vs 35/100). In the "battery" category, the OnePlus Ace 6 Ultra notably outperforms the Redmi Note 15 (82/100 vs 54/100). In the "portability" category, the Redmi Note 15 significantly outperforms the OnePlus Ace 6 Ultra (79/100 vs 43/100).
Specs comparison
| Specification | OnePlus Ace 6 Ultra | Redmi Note 15 | |
|---|---|---|---|
| Processor | MediaTek Dimensity 9500 | Qualcomm Snapdragon 6 Gen 3 | |
| AnTuTu | 3429868 | 825374 | |
| Geekbench Single | 3293 | 1013 | |
| Geekbench Multi | 10243 | 3000 | |
| Display | 6.8" AMOLED | 6.8" AMOLED | |
| Resolution | 1272x2772 | 2392x1080 | |
| Refresh rate | 165 Hz | 120 Hz | |
| Battery | 8600 mAh | 5520 mAh | |
| Charging | 120W | 45W | |
| Main camera | 50 MP | 108 MP | |
| Ultrawide | 8 MP | 8 MP | |
| Front camera | 16 MP | 20 MP | |
| RAM | 12GB / 16GB | 8GB / 12GB | |
| Storage | 256GB / 512GB / 1TB | 256GB / 512GB | |
| OS | Android 16 | Android 15 | |
| Brightness (peak) | 1800 nits | 3200 nits | |
| NFC | yes | yes | |
| Protection | IP66 | IP66 | |
| Dimensions | 162.5×77.5×8.5 mm | 164.0×75.4×7.4 mm | |
| Weight | 217 g | 178 g | |
| Launch price | $555 | $229 |
Camera comparison
OnePlus Ace 6 Ultra
- Main: 50MP f/1.8
- Ultrawide: 8MP
- Front: 16MP
Redmi Note 15
- Main: 108MP f/1.7
- Ultrawide: 8MP
- Front: 20MP
Display comparison
OnePlus Ace 6 Ultra
- 6.8" AMOLED
- Resolution: 1272x2772
- Refresh rate: 165 Hz
Redmi Note 15
- 6.8" AMOLED
- Resolution: 2392x1080
- Refresh rate: 120 Hz
Battery and charging
OnePlus Ace 6 Ultra
- 8600 mAh
- Wired: 120W
- No wireless charging
Redmi Note 15
- 5520 mAh
- Wired: 45W
- No wireless charging
Overall performance score
We compared OnePlus Ace 6 Ultra and Redmi Note 15, covering their specs and all relevant benchmarks.
OnePlus Ace 6 Ultra leads Redmi Note 15 by 315.6% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Launch price difference: $326. Redmi Note 15 was $326 cheaper at launch.
Detailed category analysis
performance
In the "performance" category, the OnePlus Ace 6 Ultra significantly outperforms the Redmi Note 15 (94/100 vs 55/100).
display
In the "display" category, the OnePlus Ace 6 Ultra notably outperforms the Redmi Note 15 (94/100 vs 79/100).
camera
In the "camera" category, the Redmi Note 15 is a bit better (46/100 vs 35/100).
battery
In the "battery" category, the OnePlus Ace 6 Ultra notably outperforms the Redmi Note 15 (82/100 vs 54/100).
portability
In the "portability" category, the Redmi Note 15 significantly outperforms the OnePlus Ace 6 Ultra (79/100 vs 43/100).
Frequently asked questions
Which is better: the OnePlus Ace 6 Ultra or the Redmi Note 15?
The OnePlus Ace 6 Ultra is noticeably better than the Redmi Note 15 — the overall rating gap is 17 points.
What is the rating of the OnePlus Ace 6 Ultra and the Redmi Note 15?
The OnePlus Ace 6 Ultra has a MobileRank rating of 74/100, the Redmi Note 15 — 57/100.
Which has the better camera: the OnePlus Ace 6 Ultra or the Redmi Note 15?
The Redmi Note 15 leads on camera score (46/100 vs 35/100).
Which is more powerful: the OnePlus Ace 6 Ultra or the Redmi Note 15?
The OnePlus Ace 6 Ultra leads on performance (94/100 vs 55/100).
Should you choose the OnePlus Ace 6 Ultra over the Redmi Note 15?
The OnePlus Ace 6 Ultra is a better fit for gamers and power users, those who care about battery life.