Redmi K90 Max vs Vivo X300 Ultra
The Redmi K90 Max (2026) runs on the MediaTek Dimensity 9500, while the Vivo X300 Ultra (2026) runs on the Qualcomm Snapdragon 8 Elite Gen 5; estimated prices are $504 and $950. By overall MobileRank rating, the Vivo X300 Ultra leads — 87/100 vs 67/100 (a 20-point difference). Key differences: the Redmi K90 Max has the bigger battery (8550 mAh vs 7000); the main camera is 50 MP vs 200 MP; the Vivo X300 Ultra is faster in AnTuTu (4,247,433 vs 3,803,420).
Redmi K90 Max
Vivo X300 Ultra
- Bigger battery: 8550 vs 7000 mAh
- Higher refresh rate: 165Hz vs 120Hz
- Lighter: 227g vs 230g
- Cheaper: $504 vs $950
- Better design/ergonomics (16/100 vs 12/100)
- Better value for money (75/100 vs 44/100)
- Higher AnTuTu: 4247433 vs 3803420
- Better Geekbench Single: 3640 vs 3228
- Better Geekbench Multi: 11033 vs 9553
- Better main camera: 200MP vs 50MP
- Higher performance (96/100 vs 82/100)
- Better camera (96/100 vs 32/100)
Comparing the Redmi K90 Max vs the Vivo X300 Ultra, the Vivo X300 Ultra scores 20 points higher (87/100 vs 67/100). In the "performance" category, the Vivo X300 Ultra leads (96/100 vs 82/100). In the "camera" category, the Vivo X300 Ultra leads (96/100 vs 32/100). In the "value for money" category, the Redmi K90 Max leads (75/100 vs 44/100). In the "performance" category, the Vivo X300 Ultra is a bit better (96/100 vs 82/100). In the "display" category, both devices are on the same level — 100/100. In the "camera" category, the Vivo X300 Ultra significantly outperforms the Redmi K90 Max (96/100 vs 32/100). In the "battery" category, both devices are on the same level — 77/100. In the "design" category, the Redmi K90 Max and the Vivo X300 Ultra are nearly equal (16/100 vs 12/100). In the "value for money" category, the Redmi K90 Max significantly outperforms the Vivo X300 Ultra (75/100 vs 44/100).
| Specification | Redmi K90 Max | Vivo X300 Ultra | |
|---|---|---|---|
| Processor | MediaTek Dimensity 9500 | Qualcomm Snapdragon 8 Elite Gen 5 | |
| AnTuTu | 3803420 | 4247433 | |
| Geekbench Single | 3228 | 3640 | |
| Geekbench Multi | 9553 | 11033 | |
| Display | 6.8" AMOLED | 6.8" LTPO OLED | |
| Resolution | 2772x1280 | 3168x1440 | |
| Refresh rate | 165 Hz | 120 Hz | |
| Battery | 8550 mAh | 7000 mAh | |
| Charging | 100W | 100W | |
| Wireless charging | 0W | 40W | |
| DXOMark (camera) | — | 170 | |
| Main camera | 50 MP | 200 MP | |
| Ultrawide | 8 MP | 50 MP | |
| Telephoto | 0 MP | 200 MP | |
| Front camera | 20 MP | 32 MP | |
| RAM | 12GB / 16GB | 12GB / 16GB | |
| Storage | 256GB / 512GB / 1TB | 256GB / 512GB / 1TB | |
| OS | Android 16 | Android 16 | |
| Brightness (peak) | 3500 nits | — | |
| NFC | yes | yes | |
| Protection | IP66 | IP69 | |
| Dimensions | 162.9×77.9×8.1 mm | 163.0×76.8×8.2 mm | |
| Weight | 227 g | 230 g | |
| Price | $504 | $950 |
Redmi K90 Max
- Main: 50MP f/f/1.68
- Ultrawide: 8MP
- Front: 20MP
Vivo X300 Ultra
- Main: 200MP f/f/1.6
- Ultrawide: 50MP
- Telephoto: 200MP
- Front: 32MP
Redmi K90 Max
- 6.8" AMOLED
- Resolution: 2772x1280
- Refresh rate: 165 Hz
Vivo X300 Ultra
- 6.8" LTPO OLED
- Resolution: 3168x1440
- Refresh rate: 120 Hz
Redmi K90 Max
- 8550 mAh
- Wired: 100W
- No wireless charging
Vivo X300 Ultra
- 7000 mAh
- NanoReview test: web browsing 10:18 hrs, total 29:11 hrs
- Wired: 100W
- Wireless: 40W
We compared Redmi K90 Max and Vivo X300 Ultra, covering their specs and all relevant benchmarks.
Vivo X300 Ultra leads Redmi K90 Max by 10.5% in our overall performance rating.
Price difference: $446. Redmi K90 Max is cheaper by $446.
performance
In the "performance" category, the Vivo X300 Ultra is a bit better (96/100 vs 82/100).
display
In the "display" category, both devices are on the same level — 100/100.
camera
In the "camera" category, the Vivo X300 Ultra significantly outperforms the Redmi K90 Max (96/100 vs 32/100).
battery
In the "battery" category, both devices are on the same level — 77/100.
design
In the "design" category, the Redmi K90 Max and the Vivo X300 Ultra are nearly equal (16/100 vs 12/100).
value for money
In the "value for money" category, the Redmi K90 Max significantly outperforms the Vivo X300 Ultra (75/100 vs 44/100).
Which is better: the Redmi K90 Max or the Vivo X300 Ultra?
The Vivo X300 Ultra significantly outperforms the Redmi K90 Max by 20 points (87/100 vs 67/100).
What is the rating of the Redmi K90 Max and the Vivo X300 Ultra?
The Redmi K90 Max has a MobileRank rating of 67/100, the Vivo X300 Ultra — 87/100.
Which has the better camera: the Redmi K90 Max or the Vivo X300 Ultra?
The Vivo X300 Ultra leads on camera score (96/100 vs 32/100).
Which is more powerful: the Redmi K90 Max or the Vivo X300 Ultra?
The Vivo X300 Ultra leads on performance (96/100 vs 82/100).
Should you choose the Redmi K90 Max over the Vivo X300 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 X300 Ultra is a better fit for gamers and power users, mobile photography enthusiasts, those who care about battery life.