OnePlus 15 vs Xiaomi Mi Mix 3 5G
The OnePlus 15 (2025) runs on the Qualcomm Snapdragon 8 Elite, while the Xiaomi Mi Mix 3 5G (2019) runs on the Qualcomm Snapdragon 855. By overall MobileRank rating, the OnePlus 15 leads — 61/100 vs 8/100 (a 53-point difference). Key differences: the OnePlus 15 has the bigger battery (6500 mAh vs 3800); the main camera is 50 MP vs 12 MP; the OnePlus 15 is faster in AnTuTu (3,621,671 vs 824,513).
OnePlus 15
Xiaomi Mi Mix 3 5G
- Higher AnTuTu: 3621671 vs 824513
- Better Geekbench Single: 3050 vs 968
- Better Geekbench Multi: 9300 vs 2731
- Bigger battery: 6500 vs 3800 mAh
- Better main camera: 50MP vs 12MP
- Lighter: 213g vs 225g
- Higher performance (77/100 vs 1/100)
- Better camera (34/100 vs 11/100)
- Longer battery life (48/100 vs 6/100)
- Better display (100/100 vs 0/100)
- Better design/ergonomics (33/100 vs 18/100)
- Overall rating 8/100
Comparing the OnePlus 15 vs the Xiaomi Mi Mix 3 5G, the OnePlus 15 scores 53 points higher (61/100 vs 8/100). In the "performance" category, the OnePlus 15 leads (77/100 vs 1/100). In the "camera" category, the OnePlus 15 leads (34/100 vs 11/100). In the "battery" category, the OnePlus 15 leads (48/100 vs 6/100). In the "performance" category, the OnePlus 15 significantly outperforms the Xiaomi Mi Mix 3 5G (77/100 vs 1/100). In the "display" category, the OnePlus 15 significantly outperforms the Xiaomi Mi Mix 3 5G (100/100 vs 0/100). In the "camera" category, the OnePlus 15 notably outperforms the Xiaomi Mi Mix 3 5G (34/100 vs 11/100). In the "battery" category, the OnePlus 15 significantly outperforms the Xiaomi Mi Mix 3 5G (48/100 vs 6/100). In the "design" category, the OnePlus 15 notably outperforms the Xiaomi Mi Mix 3 5G (33/100 vs 18/100). In the "value for money" category, both devices are on the same level — 55/100.
| Specification | OnePlus 15 | Xiaomi Mi Mix 3 5G | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 8 Elite | Qualcomm Snapdragon 855 | |
| AnTuTu | 3621671 | 824513 | |
| Geekbench Single | 3050 | 968 | |
| Geekbench Multi | 9300 | 2731 | |
| Display | 6.8" AMOLED | 6.4" Super AMOLED | |
| Resolution | — | 1080x2340 | |
| Refresh rate | 120 Hz | — | |
| Battery | 6500 mAh | 3800 mAh | |
| Charging | — | 18W | |
| Main camera | 50 MP | 12 MP | |
| Telephoto | 0 MP | 12 MP | |
| Front camera | 32 MP | 24 MP | |
| RAM | 12GB / 16GB | 6GB | |
| Storage | 256GB / 512GB | 128GB | |
| OS | — | Android 9.0 (Pie); MIUI 10 | |
| Brightness (peak) | 1800 nits | — | |
| NFC | yes | yes | |
| Protection | IP68 | — | |
| Dimensions | 161.4×76.7×8.1 mm | 157.9×74.7×8.5 mm | |
| Weight | 213 g | 225 g | |
| Price | $799 | — |
OnePlus 15
- Main: 50MP
- Front: 32MP
Xiaomi Mi Mix 3 5G
- Main: 12MP f/f/1.8
- Telephoto: 12MP
- Front: 24MP
OnePlus 15
- 6.8" AMOLED
- Refresh rate: 120 Hz
Xiaomi Mi Mix 3 5G
- 6.4" Super AMOLED
- Resolution: 1080x2340
- Refresh rate: —
OnePlus 15
- 6500 mAh
- No wireless charging
Xiaomi Mi Mix 3 5G
- 3800 mAh
- Wired: 18W
- No wireless charging
We compared OnePlus 15 and Xiaomi Mi Mix 3 5G, covering their specs and all relevant benchmarks.
OnePlus 15 leads Xiaomi Mi Mix 3 5G by 339.2% in our overall performance rating.
Xiaomi Mi Mix 3 5G
Price unknownperformance
In the "performance" category, the OnePlus 15 significantly outperforms the Xiaomi Mi Mix 3 5G (77/100 vs 1/100).
display
In the "display" category, the OnePlus 15 significantly outperforms the Xiaomi Mi Mix 3 5G (100/100 vs 0/100).
camera
In the "camera" category, the OnePlus 15 notably outperforms the Xiaomi Mi Mix 3 5G (34/100 vs 11/100).
battery
In the "battery" category, the OnePlus 15 significantly outperforms the Xiaomi Mi Mix 3 5G (48/100 vs 6/100).
design
In the "design" category, the OnePlus 15 notably outperforms the Xiaomi Mi Mix 3 5G (33/100 vs 18/100).
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 3 5G?
The OnePlus 15 significantly outperforms the Xiaomi Mi Mix 3 5G by 53 points (61/100 vs 8/100).
What is the rating of the OnePlus 15 and the Xiaomi Mi Mix 3 5G?
The OnePlus 15 has a MobileRank rating of 61/100, the Xiaomi Mi Mix 3 5G — 8/100.
Which has the better camera: the OnePlus 15 or the Xiaomi Mi Mix 3 5G?
The OnePlus 15 leads on camera score (34/100 vs 11/100).
Which is more powerful: the OnePlus 15 or the Xiaomi Mi Mix 3 5G?
The OnePlus 15 leads on performance (77/100 vs 1/100).
Should you choose the OnePlus 15 over the Xiaomi Mi Mix 3 5G?
The OnePlus 15 is a better fit for active users. The Xiaomi Mi Mix 3 5G is a better fit for everyday use.