OnePlus Ace 6 Ultra vs Xiaomi Mi Mix 3 5G
The OnePlus Ace 6 Ultra (2026) runs on the MediaTek Dimensity 9500, while the Xiaomi Mi Mix 3 5G (2019) runs on the Qualcomm Snapdragon 855. By overall MobileRank rating, the OnePlus Ace 6 Ultra leads — 66/100 vs 8/100 (a 58-point difference). Key differences: the OnePlus Ace 6 Ultra has the bigger battery (8600 mAh vs 3800); the main camera is 50 MP vs 12 MP; the OnePlus Ace 6 Ultra is faster in AnTuTu (3,429,868 vs 824,513).
OnePlus Ace 6 Ultra
Xiaomi Mi Mix 3 5G
- Higher AnTuTu: 3429868 vs 824513
- Better Geekbench Single: 3228 vs 968
- Better Geekbench Multi: 9553 vs 2731
- Bigger battery: 8600 vs 3800 mAh
- Faster charging: 120W vs 18W
- Better main camera: 50MP vs 12MP
- Lighter: 217g vs 225g
- Higher performance (76/100 vs 1/100)
- Better camera (31/100 vs 11/100)
- Longer battery life (82/100 vs 6/100)
- Better display (100/100 vs 0/100)
- Better design/ergonomics (28/100 vs 18/100)
- Better value for money (72/100 vs 55/100)
- Overall rating 8/100
Comparing the OnePlus Ace 6 Ultra vs the Xiaomi Mi Mix 3 5G, the OnePlus Ace 6 Ultra scores 58 points higher (66/100 vs 8/100). In the "performance" category, the OnePlus Ace 6 Ultra leads (76/100 vs 1/100). In the "camera" category, the OnePlus Ace 6 Ultra leads (31/100 vs 11/100). In the "battery" category, the OnePlus Ace 6 Ultra leads (82/100 vs 6/100). In the "value for money" category, the OnePlus Ace 6 Ultra leads (72/100 vs 55/100). In the "performance" category, the OnePlus Ace 6 Ultra significantly outperforms the Xiaomi Mi Mix 3 5G (76/100 vs 1/100). In the "display" category, the OnePlus Ace 6 Ultra significantly outperforms the Xiaomi Mi Mix 3 5G (100/100 vs 0/100). In the "camera" category, the OnePlus Ace 6 Ultra notably outperforms the Xiaomi Mi Mix 3 5G (31/100 vs 11/100). In the "battery" category, the OnePlus Ace 6 Ultra significantly outperforms the Xiaomi Mi Mix 3 5G (82/100 vs 6/100). In the "design" category, the OnePlus Ace 6 Ultra is a bit better (28/100 vs 18/100). In the "value for money" category, the OnePlus Ace 6 Ultra notably outperforms the Xiaomi Mi Mix 3 5G (72/100 vs 55/100).
| Specification | OnePlus Ace 6 Ultra | Xiaomi Mi Mix 3 5G | |
|---|---|---|---|
| Processor | MediaTek Dimensity 9500 | Qualcomm Snapdragon 855 | |
| AnTuTu | 3429868 | 824513 | |
| Geekbench Single | 3228 | 968 | |
| Geekbench Multi | 9553 | 2731 | |
| Display | 6.8" AMOLED | 6.4" Super AMOLED | |
| Resolution | 1272x2772 | 1080x2340 | |
| Refresh rate | 165 Hz | — | |
| Battery | 8600 mAh | 3800 mAh | |
| Charging | 120W | 18W | |
| Main camera | 50 MP | 12 MP | |
| Ultrawide | 8 MP | 0 MP | |
| Telephoto | 0 MP | 12 MP | |
| Front camera | 16 MP | 24 MP | |
| RAM | 12GB / 16GB | 6GB | |
| Storage | 256GB / 512GB / 1TB | 128GB | |
| OS | Android 16 | Android 9.0 (Pie); MIUI 10 | |
| Brightness (peak) | 1800 nits | — | |
| NFC | yes | yes | |
| Protection | IP66 | — | |
| Dimensions | 162.5×77.5×8.5 mm | 157.9×74.7×8.5 mm | |
| Weight | 217 g | 225 g | |
| Price | $555 | — |
OnePlus Ace 6 Ultra
- Main: 50MP f/f/1.8
- Ultrawide: 8MP
- Front: 16MP
Xiaomi Mi Mix 3 5G
- Main: 12MP f/f/1.8
- Telephoto: 12MP
- Front: 24MP
OnePlus Ace 6 Ultra
- 6.8" AMOLED
- Resolution: 1272x2772
- Refresh rate: 165 Hz
Xiaomi Mi Mix 3 5G
- 6.4" Super AMOLED
- Resolution: 1080x2340
- Refresh rate: —
OnePlus Ace 6 Ultra
- 8600 mAh
- Wired: 120W
- No wireless charging
Xiaomi Mi Mix 3 5G
- 3800 mAh
- Wired: 18W
- No wireless charging
We compared OnePlus Ace 6 Ultra and Xiaomi Mi Mix 3 5G, covering their specs and all relevant benchmarks.
OnePlus Ace 6 Ultra leads Xiaomi Mi Mix 3 5G by 316.0% in our overall performance rating.
Xiaomi Mi Mix 3 5G
Price unknownperformance
In the "performance" category, the OnePlus Ace 6 Ultra significantly outperforms the Xiaomi Mi Mix 3 5G (76/100 vs 1/100).
display
In the "display" category, the OnePlus Ace 6 Ultra significantly outperforms the Xiaomi Mi Mix 3 5G (100/100 vs 0/100).
camera
In the "camera" category, the OnePlus Ace 6 Ultra notably outperforms the Xiaomi Mi Mix 3 5G (31/100 vs 11/100).
battery
In the "battery" category, the OnePlus Ace 6 Ultra significantly outperforms the Xiaomi Mi Mix 3 5G (82/100 vs 6/100).
design
In the "design" category, the OnePlus Ace 6 Ultra is a bit better (28/100 vs 18/100).
value for money
In the "value for money" category, the OnePlus Ace 6 Ultra notably outperforms the Xiaomi Mi Mix 3 5G (72/100 vs 55/100).
Which is better: the OnePlus Ace 6 Ultra or the Xiaomi Mi Mix 3 5G?
The OnePlus Ace 6 Ultra significantly outperforms the Xiaomi Mi Mix 3 5G by 58 points (66/100 vs 8/100).
What is the rating of the OnePlus Ace 6 Ultra and the Xiaomi Mi Mix 3 5G?
The OnePlus Ace 6 Ultra has a MobileRank rating of 66/100, the Xiaomi Mi Mix 3 5G — 8/100.
Which has the better camera: the OnePlus Ace 6 Ultra or the Xiaomi Mi Mix 3 5G?
The OnePlus Ace 6 Ultra leads on camera score (31/100 vs 11/100).
Which is more powerful: the OnePlus Ace 6 Ultra or the Xiaomi Mi Mix 3 5G?
The OnePlus Ace 6 Ultra leads on performance (76/100 vs 1/100).
Should you choose the OnePlus Ace 6 Ultra over the Xiaomi Mi Mix 3 5G?
The OnePlus Ace 6 Ultra is a better fit for active users, those who care about battery life. The Xiaomi Mi Mix 3 5G is a better fit for everyday use.