OnePlus Ace 6 Ultra vs Redmi Note 15 4G
The OnePlus Ace 6 Ultra (2026) runs on the MediaTek Dimensity 9500, while the Redmi Note 15 4G (2025) runs on the MediaTek Helio G100 Ultra. By overall MobileRank rating, the OnePlus Ace 6 Ultra leads — 74/100 vs 51/100 (a 23-point difference). Key differences: the OnePlus Ace 6 Ultra has the bigger battery (8600 mAh vs 6000); the main camera is 50 MP vs 108 MP; the OnePlus Ace 6 Ultra is faster in AnTuTu (3,429,868 vs 575,630); the Redmi Note 15 4G is noticeably lighter (183g vs 217g).
Profile comparison
Category scores
OnePlus Ace 6 Ultra
Redmi Note 15 4G
What makes OnePlus Ace 6 Ultra better?
- Higher AnTuTu: 3429868 vs 575630
- Better Geekbench Single: 3293 vs 727
- Better Geekbench Multi: 10243 vs 2014
- Bigger battery: 8600 vs 6000 mAh
- Faster charging: 120W vs 33W
- Higher refresh rate: 165Hz vs 120Hz
- Higher performance (94/100 vs 44/100)
- Longer battery life (82/100 vs 53/100)
- Better display (94/100 vs 79/100)
What makes Redmi Note 15 4G better?
- Better main camera: 108MP vs 50MP
- Lighter: 183g vs 217g
- Better camera (42/100 vs 35/100)
- Better portability (70/100 vs 43/100)
Comparison verdict
Comparing the OnePlus Ace 6 Ultra vs the Redmi Note 15 4G, the OnePlus Ace 6 Ultra scores 23 points higher (74/100 vs 51/100). In the "performance" category, the OnePlus Ace 6 Ultra leads (94/100 vs 44/100). In the "battery" category, the OnePlus Ace 6 Ultra leads (82/100 vs 53/100). In the "performance" category, the OnePlus Ace 6 Ultra significantly outperforms the Redmi Note 15 4G (94/100 vs 44/100). In the "display" category, the OnePlus Ace 6 Ultra notably outperforms the Redmi Note 15 4G (94/100 vs 79/100). In the "camera" category, the Redmi Note 15 4G is a bit better (42/100 vs 35/100). In the "battery" category, the OnePlus Ace 6 Ultra notably outperforms the Redmi Note 15 4G (82/100 vs 53/100). In the "portability" category, the Redmi Note 15 4G notably outperforms the OnePlus Ace 6 Ultra (70/100 vs 43/100).
Specs comparison
| Specification | OnePlus Ace 6 Ultra | Redmi Note 15 4G | |
|---|---|---|---|
| Processor | MediaTek Dimensity 9500 | MediaTek Helio G100 Ultra | |
| AnTuTu | 3429868 | 575630 | |
| Geekbench Single | 3293 | 727 | |
| Geekbench Multi | 10243 | 2014 | |
| Display | 6.8" AMOLED | 6.8" AMOLED | |
| Resolution | 1272x2772 | 1080x2392 | |
| Refresh rate | 165 Hz | 120 Hz | |
| Battery | 8600 mAh | 6000 mAh | |
| Charging | 120W | 33W | |
| Main camera | 50 MP | 108 MP | |
| Ultrawide | 8 MP | 0 MP | |
| Front camera | 16 MP | 20 MP | |
| RAM | 12GB / 16GB | 6GB / 8GB | |
| Storage | 256GB / 512GB / 1TB | 128GB / 256GB / 512GB | |
| OS | Android 16 | Android 15, up to 4 major Android upgrades, HyperOS 2 | |
| Brightness (peak) | 1800 nits | 3200 nits | |
| NFC | yes | yes | |
| Protection | IP66 | IP64 | |
| Dimensions | 162.5×77.5×8.5 mm | 164.0×75.4×7.9 mm | |
| Weight | 217 g | 183 g | |
| Launch price | $555 | — |
Camera comparison
OnePlus Ace 6 Ultra
- Main: 50MP f/1.8
- Ultrawide: 8MP
- Front: 16MP
Redmi Note 15 4G
- Main: 108MP f/1.7
- Front: 20MP
Display comparison
OnePlus Ace 6 Ultra
- 6.8" AMOLED
- Resolution: 1272x2772
- Refresh rate: 165 Hz
Redmi Note 15 4G
- 6.8" AMOLED
- Resolution: 1080x2392
- Refresh rate: 120 Hz
Battery and charging
OnePlus Ace 6 Ultra
- 8600 mAh
- Wired: 120W
- No wireless charging
Redmi Note 15 4G
- 6000 mAh
- Wired: 33W
- No wireless charging
Overall performance score
We compared OnePlus Ace 6 Ultra and Redmi Note 15 4G, covering their specs and all relevant benchmarks.
OnePlus Ace 6 Ultra leads Redmi Note 15 4G by 495.8% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Redmi Note 15 4G
Price unknownDetailed category analysis
performance
In the "performance" category, the OnePlus Ace 6 Ultra significantly outperforms the Redmi Note 15 4G (94/100 vs 44/100).
display
In the "display" category, the OnePlus Ace 6 Ultra notably outperforms the Redmi Note 15 4G (94/100 vs 79/100).
camera
In the "camera" category, the Redmi Note 15 4G is a bit better (42/100 vs 35/100).
battery
In the "battery" category, the OnePlus Ace 6 Ultra notably outperforms the Redmi Note 15 4G (82/100 vs 53/100).
portability
In the "portability" category, the Redmi Note 15 4G notably outperforms the OnePlus Ace 6 Ultra (70/100 vs 43/100).
Frequently asked questions
Which is better: the OnePlus Ace 6 Ultra or the Redmi Note 15 4G?
The OnePlus Ace 6 Ultra significantly outperforms the Redmi Note 15 4G by 23 points (74/100 vs 51/100).
What is the rating of the OnePlus Ace 6 Ultra and the Redmi Note 15 4G?
The OnePlus Ace 6 Ultra has a MobileRank rating of 74/100, the Redmi Note 15 4G — 51/100.
Which has the better camera: the OnePlus Ace 6 Ultra or the Redmi Note 15 4G?
The Redmi Note 15 4G leads on camera score (42/100 vs 35/100).
Which is more powerful: the OnePlus Ace 6 Ultra or the Redmi Note 15 4G?
The OnePlus Ace 6 Ultra leads on performance (94/100 vs 44/100).
Should you choose the OnePlus Ace 6 Ultra over the Redmi Note 15 4G?
The OnePlus Ace 6 Ultra is a better fit for gamers and power users, those who care about battery life.