Vivo iQOO 15 Ultra vs Xiaomi Mix Fold 4
The Vivo iQOO 15 Ultra (2026) runs on the Qualcomm Snapdragon 8 Elite Gen 5, while the Xiaomi Mix Fold 4 (2024) runs on the Qualcomm Snapdragon 8 Gen 3. By overall MobileRank rating, the Vivo iQOO 15 Ultra leads — 84/100 vs 55/100 (a 29-point difference). Key differences: the Vivo iQOO 15 Ultra has the bigger battery (7400 mAh vs 5100); the Vivo iQOO 15 Ultra is faster in AnTuTu (4,602,290 vs 2,342,433); the Xiaomi Mix Fold 4 is thinner (4.6mm vs 8.7mm).
Vivo iQOO 15 Ultra
Xiaomi Mix Fold 4
- Higher AnTuTu: 4602290 vs 2342433
- Better Geekbench Single: 3640 vs 2205
- Better Geekbench Multi: 11033 vs 7192
- Bigger battery: 7400 vs 5100 mAh
- Faster charging: 120W vs 67W
- Higher refresh rate: 144Hz vs 120Hz
- Higher performance (97/100 vs 45/100)
- Better camera (74/100 vs 53/100)
- Longer battery life (86/100 vs 60/100)
- Lighter: 226g vs 227g
- Better design/ergonomics (17/100 vs 16/100)
Comparing the Vivo iQOO 15 Ultra vs the Xiaomi Mix Fold 4, the Vivo iQOO 15 Ultra scores 29 points higher (84/100 vs 55/100). In the "performance" category, the Vivo iQOO 15 Ultra leads (97/100 vs 45/100). In the "camera" category, the Vivo iQOO 15 Ultra leads (74/100 vs 53/100). In the "battery" category, the Vivo iQOO 15 Ultra leads (86/100 vs 60/100). In the "performance" category, the Vivo iQOO 15 Ultra significantly outperforms the Xiaomi Mix Fold 4 (97/100 vs 45/100). In the "display" category, both devices are on the same level — 100/100. In the "camera" category, the Vivo iQOO 15 Ultra notably outperforms the Xiaomi Mix Fold 4 (74/100 vs 53/100). In the "battery" category, the Vivo iQOO 15 Ultra notably outperforms the Xiaomi Mix Fold 4 (86/100 vs 60/100). In the "design" category, the Xiaomi Mix Fold 4 and the Vivo iQOO 15 Ultra are nearly equal (17/100 vs 16/100). In the "value for money" category, both devices are on the same level — 55/100.
| Specification | Vivo iQOO 15 Ultra | Xiaomi Mix Fold 4 | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 8 Elite Gen 5 | Qualcomm Snapdragon 8 Gen 3 | |
| AnTuTu | 4602290 | 2342433 | |
| Geekbench Single | 3640 | 2205 | |
| Geekbench Multi | 11033 | 7192 | |
| Display | 6.8" LTPO AMOLED | 8.0" Foldable LTPO AMOLED | |
| Resolution | 1440x3168 | 2224x2488 | |
| Refresh rate | 144 Hz | 120 Hz | |
| Battery | 7400 mAh | 5100 mAh | |
| Charging | 120W | 67W | |
| Wireless charging | 50W | 50W | |
| Main camera | 50 MP | 50 MP | |
| Ultrawide | 50 MP | 12 MP | |
| Telephoto | 50 MP | 50 MP | |
| Front camera | 32 MP | 16 MP | |
| RAM | 12GB / 16GB / 24GB | 12GB / 16GB | |
| Storage | 256GB / 512GB / 1TB | 256GB / 512GB / 1TB | |
| OS | Android 16 | Android 14, HyperOS | |
| Brightness (peak) | 8000 nits | 3000 nits | |
| NFC | yes | yes | |
| Protection | IP68 | IPX8 | |
| Dimensions | 163.7×76.8×8.7 mm | 159.4×143.3×4.6 mm | |
| Weight | 227 g | 226 g | |
| Price | $799 | — |
Vivo iQOO 15 Ultra
- Main: 50MP f/f/1.9
- Ultrawide: 50MP
- Telephoto: 50MP
- Front: 32MP
Xiaomi Mix Fold 4
- Main: 50MP f/f/1.7
- Ultrawide: 12MP
- Telephoto: 50MP
- Front: 16MP
Vivo iQOO 15 Ultra
- 6.8" LTPO AMOLED
- Resolution: 1440x3168
- Refresh rate: 144 Hz
Xiaomi Mix Fold 4
- 8.0" Foldable LTPO AMOLED
- Resolution: 2224x2488
- Refresh rate: 120 Hz
Vivo iQOO 15 Ultra
- 7400 mAh
- Wired: 120W
- Wireless: 50W
Xiaomi Mix Fold 4
- 5100 mAh
- Wired: 67W
- Wireless: 50W
We compared Vivo iQOO 15 Ultra and Xiaomi Mix Fold 4, covering their specs and all relevant benchmarks.
Vivo iQOO 15 Ultra leads Xiaomi Mix Fold 4 by 96.5% in our overall performance rating.
Xiaomi Mix Fold 4
Price unknownperformance
In the "performance" category, the Vivo iQOO 15 Ultra significantly outperforms the Xiaomi Mix Fold 4 (97/100 vs 45/100).
display
In the "display" category, both devices are on the same level — 100/100.
camera
In the "camera" category, the Vivo iQOO 15 Ultra notably outperforms the Xiaomi Mix Fold 4 (74/100 vs 53/100).
battery
In the "battery" category, the Vivo iQOO 15 Ultra notably outperforms the Xiaomi Mix Fold 4 (86/100 vs 60/100).
design
In the "design" category, the Xiaomi Mix Fold 4 and the Vivo iQOO 15 Ultra are nearly equal (17/100 vs 16/100).
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 Mix Fold 4?
The Vivo iQOO 15 Ultra significantly outperforms the Xiaomi Mix Fold 4 by 29 points (84/100 vs 55/100).
What is the rating of the Vivo iQOO 15 Ultra and the Xiaomi Mix Fold 4?
The Vivo iQOO 15 Ultra has a MobileRank rating of 84/100, the Xiaomi Mix Fold 4 — 55/100.
Which has the better camera: the Vivo iQOO 15 Ultra or the Xiaomi Mix Fold 4?
The Vivo iQOO 15 Ultra leads on camera score (74/100 vs 53/100).
Which is more powerful: the Vivo iQOO 15 Ultra or the Xiaomi Mix Fold 4?
The Vivo iQOO 15 Ultra leads on performance (97/100 vs 45/100).
Should you choose the Vivo iQOO 15 Ultra over the Xiaomi Mix Fold 4?
The Vivo iQOO 15 Ultra is a better fit for gamers and power users, those who care about battery life. The Xiaomi Mix Fold 4 is a better fit for everyday use.