Vivo iQOO 15 Ultra vs Xiaomi Mi Mix Alpha
The Vivo iQOO 15 Ultra (2026) runs on the Qualcomm Snapdragon 8 Elite Gen 5, while the Xiaomi Mi Mix Alpha (2019) runs on the Qualcomm Snapdragon 855+. By overall MobileRank rating, the Vivo iQOO 15 Ultra leads — 84/100 vs 18/100 (a 66-point difference). Key differences: the Vivo iQOO 15 Ultra has the bigger battery (7400 mAh vs 4050); the main camera is 50 MP vs 108 MP; the Vivo iQOO 15 Ultra is faster in AnTuTu (4,602,290 vs 859,084); the Vivo iQOO 15 Ultra has NFC for contactless payments, the Xiaomi Mi Mix Alpha doesn't; the Vivo iQOO 15 Ultra is thinner (8.7mm vs 10.4mm).
Vivo iQOO 15 Ultra
Xiaomi Mi Mix Alpha
- Higher AnTuTu: 4602290 vs 859084
- Better Geekbench Single: 3640 vs 1031
- Better Geekbench Multi: 11033 vs 2864
- Bigger battery: 7400 vs 4050 mAh
- Faster charging: 120W vs 40W
- Lighter: 227g vs 241g
- Higher performance (97/100 vs 2/100)
- Better camera (74/100 vs 48/100)
- Longer battery life (86/100 vs 18/100)
- Better display (100/100 vs 0/100)
- Better design/ergonomics (16/100 vs 0/100)
- Better main camera: 108MP vs 50MP
- Overall rating 18/100
Comparing the Vivo iQOO 15 Ultra vs the Xiaomi Mi Mix Alpha, the Vivo iQOO 15 Ultra scores 66 points higher (84/100 vs 18/100). In the "performance" category, the Vivo iQOO 15 Ultra leads (97/100 vs 2/100). In the "camera" category, the Vivo iQOO 15 Ultra leads (74/100 vs 48/100). In the "battery" category, the Vivo iQOO 15 Ultra leads (86/100 vs 18/100). In the "performance" category, the Vivo iQOO 15 Ultra significantly outperforms the Xiaomi Mi Mix Alpha (97/100 vs 2/100). In the "display" category, the Vivo iQOO 15 Ultra significantly outperforms the Xiaomi Mi Mix Alpha (100/100 vs 0/100). In the "camera" category, the Vivo iQOO 15 Ultra notably outperforms the Xiaomi Mi Mix Alpha (74/100 vs 48/100). In the "battery" category, the Vivo iQOO 15 Ultra significantly outperforms the Xiaomi Mi Mix Alpha (86/100 vs 18/100). In the "design" category, the Vivo iQOO 15 Ultra notably outperforms the Xiaomi Mi Mix Alpha (16/100 vs 0/100). In the "value for money" category, both devices are on the same level — 55/100.
| Specification | Vivo iQOO 15 Ultra | Xiaomi Mi Mix Alpha | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 8 Elite Gen 5 | Qualcomm Snapdragon 855+ | |
| AnTuTu | 4602290 | 859084 | |
| Geekbench Single | 3640 | 1031 | |
| Geekbench Multi | 11033 | 2864 | |
| Display | 6.8" LTPO AMOLED | 7.9" Flexible Super AMOLED | |
| Resolution | 1440x3168 | 2088x2250 | |
| Refresh rate | 144 Hz | — | |
| Battery | 7400 mAh | 4050 mAh | |
| Charging | 120W | 40W | |
| Wireless charging | 50W | 0W | |
| Main camera | 50 MP | 108 MP | |
| Ultrawide | 50 MP | 20 MP | |
| Telephoto | 50 MP | 12 MP | |
| Front camera | 32 MP | — | |
| RAM | 12GB / 16GB / 24GB | 12GB | |
| Storage | 256GB / 512GB / 1TB | 512GB | |
| OS | Android 16 | Android 10 | |
| Brightness (peak) | 8000 nits | — | |
| NFC | yes | no | |
| Protection | IP68 | — | |
| Dimensions | 163.7×76.8×8.7 mm | 154.4×72.3×10.4 mm | |
| Weight | 227 g | 241 g | |
| Price | $799 | — |
Vivo iQOO 15 Ultra
- Main: 50MP f/f/1.9
- Ultrawide: 50MP
- Telephoto: 50MP
- Front: 32MP
Xiaomi Mi Mix Alpha
- Main: 108MP f/f/1.7
- Ultrawide: 20MP
- Telephoto: 12MP
- Front: —
Vivo iQOO 15 Ultra
- 6.8" LTPO AMOLED
- Resolution: 1440x3168
- Refresh rate: 144 Hz
Xiaomi Mi Mix Alpha
- 7.9" Flexible Super AMOLED
- Resolution: 2088x2250
- Refresh rate: —
Vivo iQOO 15 Ultra
- 7400 mAh
- Wired: 120W
- Wireless: 50W
Xiaomi Mi Mix Alpha
- 4050 mAh
- Wired: 40W
- No wireless charging
We compared Vivo iQOO 15 Ultra and Xiaomi Mi Mix Alpha, covering their specs and all relevant benchmarks.
Vivo iQOO 15 Ultra leads Xiaomi Mi Mix Alpha by 435.7% in our overall performance rating.
Xiaomi Mi Mix Alpha
Price unknownperformance
In the "performance" category, the Vivo iQOO 15 Ultra significantly outperforms the Xiaomi Mi Mix Alpha (97/100 vs 2/100).
display
In the "display" category, the Vivo iQOO 15 Ultra significantly outperforms the Xiaomi Mi Mix Alpha (100/100 vs 0/100).
camera
In the "camera" category, the Vivo iQOO 15 Ultra notably outperforms the Xiaomi Mi Mix Alpha (74/100 vs 48/100).
battery
In the "battery" category, the Vivo iQOO 15 Ultra significantly outperforms the Xiaomi Mi Mix Alpha (86/100 vs 18/100).
design
In the "design" category, the Vivo iQOO 15 Ultra notably outperforms the Xiaomi Mi Mix Alpha (16/100 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 Vivo iQOO 15 Ultra or the Xiaomi Mi Mix Alpha?
The Vivo iQOO 15 Ultra significantly outperforms the Xiaomi Mi Mix Alpha by 66 points (84/100 vs 18/100).
What is the rating of the Vivo iQOO 15 Ultra and the Xiaomi Mi Mix Alpha?
The Vivo iQOO 15 Ultra has a MobileRank rating of 84/100, the Xiaomi Mi Mix Alpha — 18/100.
Which has the better camera: the Vivo iQOO 15 Ultra or the Xiaomi Mi Mix Alpha?
The Vivo iQOO 15 Ultra leads on camera score (74/100 vs 48/100).
Which is more powerful: the Vivo iQOO 15 Ultra or the Xiaomi Mi Mix Alpha?
The Vivo iQOO 15 Ultra leads on performance (97/100 vs 2/100).
Should you choose the Vivo iQOO 15 Ultra over the Xiaomi Mi Mix Alpha?
The Vivo iQOO 15 Ultra is a better fit for gamers and power users, those who care about battery life. The Xiaomi Mi Mix Alpha is a better fit for everyday use.