Redmi K90 Max vs Vivo iQOO 15 Ultra
The Redmi K90 Max (2026) runs on the MediaTek Dimensity 9500, while the Vivo iQOO 15 Ultra (2026) runs on the Qualcomm Snapdragon 8 Elite Gen 5; estimated prices are $504 and $799. By overall MobileRank rating, the Vivo iQOO 15 Ultra leads — 84/100 vs 67/100 (a 17-point difference). Key differences: the Redmi K90 Max has the bigger battery (8550 mAh vs 7400); the Vivo iQOO 15 Ultra is faster in AnTuTu (4,602,290 vs 3,803,420).
Redmi K90 Max
Vivo iQOO 15 Ultra
- Bigger battery: 8550 vs 7400 mAh
- Higher refresh rate: 165Hz vs 144Hz
- Cheaper: $504 vs $799
- Better value for money (75/100 vs 55/100)
- Higher AnTuTu: 4602290 vs 3803420
- Better Geekbench Single: 3640 vs 3228
- Better Geekbench Multi: 11033 vs 9553
- Faster charging: 120W vs 100W
- Higher performance (97/100 vs 82/100)
- Better camera (74/100 vs 32/100)
- Longer battery life (86/100 vs 77/100)
Comparing the Redmi K90 Max vs the Vivo iQOO 15 Ultra, the Vivo iQOO 15 Ultra scores 17 points higher (84/100 vs 67/100). In the "performance" category, the Vivo iQOO 15 Ultra leads (97/100 vs 82/100). In the "camera" category, the Vivo iQOO 15 Ultra leads (74/100 vs 32/100). In the "value for money" category, the Redmi K90 Max leads (75/100 vs 55/100). In the "performance" category, the Vivo iQOO 15 Ultra notably outperforms the Redmi K90 Max (97/100 vs 82/100). In the "display" category, both devices are on the same level — 100/100. In the "camera" category, the Vivo iQOO 15 Ultra significantly outperforms the Redmi K90 Max (74/100 vs 32/100). In the "battery" category, the Vivo iQOO 15 Ultra is a bit better (86/100 vs 77/100). In the "design" category, both devices are on the same level — 16/100. In the "value for money" category, the Redmi K90 Max notably outperforms the Vivo iQOO 15 Ultra (75/100 vs 55/100).
| Specification | Redmi K90 Max | Vivo iQOO 15 Ultra | |
|---|---|---|---|
| Processor | MediaTek Dimensity 9500 | Qualcomm Snapdragon 8 Elite Gen 5 | |
| AnTuTu | 3803420 | 4602290 | |
| Geekbench Single | 3228 | 3640 | |
| Geekbench Multi | 9553 | 11033 | |
| Display | 6.8" AMOLED | 6.8" LTPO AMOLED | |
| Resolution | 2772x1280 | 1440x3168 | |
| Refresh rate | 165 Hz | 144 Hz | |
| Battery | 8550 mAh | 7400 mAh | |
| Charging | 100W | 120W | |
| Wireless charging | 0W | 50W | |
| Main camera | 50 MP | 50 MP | |
| Ultrawide | 8 MP | 50 MP | |
| Telephoto | 0 MP | 50 MP | |
| Front camera | 20 MP | 32 MP | |
| RAM | 12GB / 16GB | 12GB / 16GB / 24GB | |
| Storage | 256GB / 512GB / 1TB | 256GB / 512GB / 1TB | |
| OS | Android 16 | Android 16 | |
| Brightness (peak) | 3500 nits | 8000 nits | |
| NFC | yes | yes | |
| Protection | IP66 | IP68 | |
| Dimensions | 162.9×77.9×8.1 mm | 163.7×76.8×8.7 mm | |
| Weight | 227 g | 227 g | |
| Price | $504 | $799 |
Redmi K90 Max
- Main: 50MP f/f/1.68
- Ultrawide: 8MP
- Front: 20MP
Vivo iQOO 15 Ultra
- Main: 50MP f/f/1.9
- Ultrawide: 50MP
- Telephoto: 50MP
- Front: 32MP
Redmi K90 Max
- 6.8" AMOLED
- Resolution: 2772x1280
- Refresh rate: 165 Hz
Vivo iQOO 15 Ultra
- 6.8" LTPO AMOLED
- Resolution: 1440x3168
- Refresh rate: 144 Hz
Redmi K90 Max
- 8550 mAh
- Wired: 100W
- No wireless charging
Vivo iQOO 15 Ultra
- 7400 mAh
- Wired: 120W
- Wireless: 50W
We compared Redmi K90 Max and Vivo iQOO 15 Ultra, covering their specs and all relevant benchmarks.
Vivo iQOO 15 Ultra leads Redmi K90 Max by 17.4% in our overall performance rating.
Price difference: $295. Redmi K90 Max is cheaper by $295.
performance
In the "performance" category, the Vivo iQOO 15 Ultra notably outperforms the Redmi K90 Max (97/100 vs 82/100).
display
In the "display" category, both devices are on the same level — 100/100.
camera
In the "camera" category, the Vivo iQOO 15 Ultra significantly outperforms the Redmi K90 Max (74/100 vs 32/100).
battery
In the "battery" category, the Vivo iQOO 15 Ultra is a bit better (86/100 vs 77/100).
design
In the "design" category, both devices are on the same level — 16/100.
value for money
In the "value for money" category, the Redmi K90 Max notably outperforms the Vivo iQOO 15 Ultra (75/100 vs 55/100).
Which is better: the Redmi K90 Max or the Vivo iQOO 15 Ultra?
The Vivo iQOO 15 Ultra is noticeably better than the Redmi K90 Max — the overall rating gap is 17 points.
What is the rating of the Redmi K90 Max and the Vivo iQOO 15 Ultra?
The Redmi K90 Max has a MobileRank rating of 67/100, the Vivo iQOO 15 Ultra — 84/100.
Which has the better camera: the Redmi K90 Max or the Vivo iQOO 15 Ultra?
The Vivo iQOO 15 Ultra leads on camera score (74/100 vs 32/100).
Which is more powerful: the Redmi K90 Max or the Vivo iQOO 15 Ultra?
The Vivo iQOO 15 Ultra leads on performance (97/100 vs 82/100).
Should you choose the Redmi K90 Max over the Vivo iQOO 15 Ultra?
The Redmi K90 Max is a better fit for gamers and power users, those who care about battery life, budget-conscious buyers. The Vivo iQOO 15 Ultra is a better fit for gamers and power users, those who care about battery life.