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 — 89/100 vs 72/100 (a 17-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 2,345,563); the Xiaomi Mix Fold 4 is thinner (4.6mm vs 8.7mm).
Profile comparison
Category scores
Vivo iQOO 15 Ultra
Xiaomi Mix Fold 4
What makes Vivo iQOO 15 Ultra better?
- Higher AnTuTu: 4602290 vs 2345563
- Better Geekbench Single: 3639 vs 2203
- Better Geekbench Multi: 11047 vs 6511
- Bigger battery: 7400 vs 5100 mAh
- Faster charging: 120W vs 67W
- Higher refresh rate: 144Hz vs 120Hz
- Higher performance (99/100 vs 82/100)
- Better camera (78/100 vs 58/100)
- Longer battery life (92/100 vs 70/100)
- Better display (99/100 vs 81/100)
What makes Xiaomi Mix Fold 4 better?
- Lighter: 226g vs 227g
- Better portability (59/100 vs 35/100)
Comparison verdict
Comparing the Vivo iQOO 15 Ultra vs the Xiaomi Mix Fold 4, the Vivo iQOO 15 Ultra scores 17 points higher (89/100 vs 72/100). In the "performance" category, the Vivo iQOO 15 Ultra leads (99/100 vs 82/100). In the "camera" category, the Vivo iQOO 15 Ultra leads (78/100 vs 58/100). In the "battery" category, the Vivo iQOO 15 Ultra leads (92/100 vs 70/100). In the "performance" category, the Vivo iQOO 15 Ultra notably outperforms the Xiaomi Mix Fold 4 (99/100 vs 82/100). In the "display" category, the Vivo iQOO 15 Ultra notably outperforms the Xiaomi Mix Fold 4 (99/100 vs 81/100). In the "camera" category, the Vivo iQOO 15 Ultra notably outperforms the Xiaomi Mix Fold 4 (78/100 vs 58/100). In the "battery" category, the Vivo iQOO 15 Ultra notably outperforms the Xiaomi Mix Fold 4 (92/100 vs 70/100). In the "portability" category, the Xiaomi Mix Fold 4 notably outperforms the Vivo iQOO 15 Ultra (59/100 vs 35/100).
Specs comparison
| Specification | Vivo iQOO 15 Ultra | Xiaomi Mix Fold 4 | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 8 Elite Gen 5 | Qualcomm Snapdragon 8 Gen 3 | |
| AnTuTu | 4602290 | 2345563 | |
| Geekbench Single | 3639 | 2203 | |
| Geekbench Multi | 11047 | 6511 | |
| 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 | |
| Launch price | $799 | — |
Camera comparison
Vivo iQOO 15 Ultra
- Main: 50MP f/1.9
- Ultrawide: 50MP
- Telephoto: 50MP
- Front: 32MP
Xiaomi Mix Fold 4
- Main: 50MP f/1.7
- Ultrawide: 12MP
- Telephoto: 50MP
- Front: 16MP
Display comparison
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
Battery and charging
Vivo iQOO 15 Ultra
- 7400 mAh
- Wired: 120W
- Wireless: 50W
Xiaomi Mix Fold 4
- 5100 mAh
- Wired: 67W
- Wireless: 50W
Overall performance score
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 96.2% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Xiaomi Mix Fold 4
Price unknownDetailed category analysis
performance
In the "performance" category, the Vivo iQOO 15 Ultra notably outperforms the Xiaomi Mix Fold 4 (99/100 vs 82/100).
display
In the "display" category, the Vivo iQOO 15 Ultra notably outperforms the Xiaomi Mix Fold 4 (99/100 vs 81/100).
camera
In the "camera" category, the Vivo iQOO 15 Ultra notably outperforms the Xiaomi Mix Fold 4 (78/100 vs 58/100).
battery
In the "battery" category, the Vivo iQOO 15 Ultra notably outperforms the Xiaomi Mix Fold 4 (92/100 vs 70/100).
portability
In the "portability" category, the Xiaomi Mix Fold 4 notably outperforms the Vivo iQOO 15 Ultra (59/100 vs 35/100).
Frequently asked questions
Which is better: the Vivo iQOO 15 Ultra or the Xiaomi Mix Fold 4?
The Vivo iQOO 15 Ultra is noticeably better than the Xiaomi Mix Fold 4 — the overall rating gap is 17 points.
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 89/100, the Xiaomi Mix Fold 4 — 72/100.
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 (78/100 vs 58/100).
Which is more powerful: the Vivo iQOO 15 Ultra or the Xiaomi Mix Fold 4?
The Vivo iQOO 15 Ultra leads on performance (99/100 vs 82/100).
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, budget-conscious buyers. The Xiaomi Mix Fold 4 is a better fit for gamers and power users.