OnePlus 15 vs Xiaomi Mi Mix Alpha
The OnePlus 15 (2025) runs on the Qualcomm Snapdragon 8 Elite, while the Xiaomi Mi Mix Alpha (2019) runs on the Qualcomm Snapdragon 855+. By overall MobileRank rating, the OnePlus 15 leads — 61/100 vs 18/100 (a 43-point difference). Key differences: the OnePlus 15 has the bigger battery (6500 mAh vs 4050); the main camera is 50 MP vs 108 MP; the OnePlus 15 is faster in AnTuTu (3,621,671 vs 859,084); the OnePlus 15 has NFC for contactless payments, the Xiaomi Mi Mix Alpha doesn't; the OnePlus 15 is noticeably lighter (213g vs 241g).
OnePlus 15
Xiaomi Mi Mix Alpha
- Higher AnTuTu: 3621671 vs 859084
- Better Geekbench Single: 3050 vs 1031
- Better Geekbench Multi: 9300 vs 2864
- Bigger battery: 6500 vs 4050 mAh
- Lighter: 213g vs 241g
- Higher performance (77/100 vs 2/100)
- Longer battery life (48/100 vs 18/100)
- Better display (100/100 vs 0/100)
- Better design/ergonomics (33/100 vs 0/100)
- Better main camera: 108MP vs 50MP
- Better camera (48/100 vs 34/100)
Comparing the OnePlus 15 vs the Xiaomi Mi Mix Alpha, the OnePlus 15 scores 43 points higher (61/100 vs 18/100). In the "performance" category, the OnePlus 15 leads (77/100 vs 2/100). In the "camera" category, the Xiaomi Mi Mix Alpha leads (48/100 vs 34/100). In the "battery" category, the OnePlus 15 leads (48/100 vs 18/100). In the "performance" category, the OnePlus 15 significantly outperforms the Xiaomi Mi Mix Alpha (77/100 vs 2/100). In the "display" category, the OnePlus 15 significantly outperforms the Xiaomi Mi Mix Alpha (100/100 vs 0/100). In the "camera" category, the Xiaomi Mi Mix Alpha is a bit better (48/100 vs 34/100). In the "battery" category, the OnePlus 15 significantly outperforms the Xiaomi Mi Mix Alpha (48/100 vs 18/100). In the "design" category, the OnePlus 15 significantly outperforms the Xiaomi Mi Mix Alpha (33/100 vs 0/100). In the "value for money" category, both devices are on the same level — 55/100.
| Specification | OnePlus 15 | Xiaomi Mi Mix Alpha | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 8 Elite | Qualcomm Snapdragon 855+ | |
| AnTuTu | 3621671 | 859084 | |
| Geekbench Single | 3050 | 1031 | |
| Geekbench Multi | 9300 | 2864 | |
| Display | 6.8" AMOLED | 7.9" Flexible Super AMOLED | |
| Resolution | — | 2088x2250 | |
| Refresh rate | 120 Hz | — | |
| Battery | 6500 mAh | 4050 mAh | |
| Charging | — | 40W | |
| Main camera | 50 MP | 108 MP | |
| Ultrawide | 0 MP | 20 MP | |
| Telephoto | 0 MP | 12 MP | |
| Front camera | 32 MP | — | |
| RAM | 12GB / 16GB | 12GB | |
| Storage | 256GB / 512GB | 512GB | |
| OS | — | Android 10 | |
| Brightness (peak) | 1800 nits | — | |
| NFC | yes | no | |
| Protection | IP68 | — | |
| Dimensions | 161.4×76.7×8.1 mm | 154.4×72.3×10.4 mm | |
| Weight | 213 g | 241 g | |
| Price | $799 | — |
OnePlus 15
- Main: 50MP
- Front: 32MP
Xiaomi Mi Mix Alpha
- Main: 108MP f/f/1.7
- Ultrawide: 20MP
- Telephoto: 12MP
- Front: —
OnePlus 15
- 6.8" AMOLED
- Refresh rate: 120 Hz
Xiaomi Mi Mix Alpha
- 7.9" Flexible Super AMOLED
- Resolution: 2088x2250
- Refresh rate: —
OnePlus 15
- 6500 mAh
- No wireless charging
Xiaomi Mi Mix Alpha
- 4050 mAh
- Wired: 40W
- No wireless charging
We compared OnePlus 15 and Xiaomi Mi Mix Alpha, covering their specs and all relevant benchmarks.
OnePlus 15 leads Xiaomi Mi Mix Alpha by 321.6% in our overall performance rating.
Xiaomi Mi Mix Alpha
Price unknownperformance
In the "performance" category, the OnePlus 15 significantly outperforms the Xiaomi Mi Mix Alpha (77/100 vs 2/100).
display
In the "display" category, the OnePlus 15 significantly outperforms the Xiaomi Mi Mix Alpha (100/100 vs 0/100).
camera
In the "camera" category, the Xiaomi Mi Mix Alpha is a bit better (48/100 vs 34/100).
battery
In the "battery" category, the OnePlus 15 significantly outperforms the Xiaomi Mi Mix Alpha (48/100 vs 18/100).
design
In the "design" category, the OnePlus 15 significantly outperforms the Xiaomi Mi Mix Alpha (33/100 vs 0/100).
value for money
In the "value for money" category, both devices are on the same level — 55/100.
Which is better: the OnePlus 15 or the Xiaomi Mi Mix Alpha?
The OnePlus 15 significantly outperforms the Xiaomi Mi Mix Alpha by 43 points (61/100 vs 18/100).
What is the rating of the OnePlus 15 and the Xiaomi Mi Mix Alpha?
The OnePlus 15 has a MobileRank rating of 61/100, the Xiaomi Mi Mix Alpha — 18/100.
Which has the better camera: the OnePlus 15 or the Xiaomi Mi Mix Alpha?
The Xiaomi Mi Mix Alpha leads on camera score (48/100 vs 34/100).
Which is more powerful: the OnePlus 15 or the Xiaomi Mi Mix Alpha?
The OnePlus 15 leads on performance (77/100 vs 2/100).
Should you choose the OnePlus 15 over the Xiaomi Mi Mix Alpha?
The OnePlus 15 is a better fit for active users. The Xiaomi Mi Mix Alpha is a better fit for everyday use.