Redmi K90 Pro Max vs Vivo X300 Ultra
The Redmi K90 Pro Max (2025) runs on the Qualcomm Snapdragon 8 Elite Gen 5, while the Vivo X300 Ultra (2026) runs on the Qualcomm Snapdragon 8 Elite Gen 5; launch prices were $561 and $950. By overall MobileRank rating, the Vivo X300 Ultra leads — 91/100 vs 86/100 (a 5-point difference). Key differences: the Redmi K90 Pro Max has the bigger battery (7560 mAh vs 7000); the main camera is 50 MP vs 200 MP; the Vivo X300 Ultra is faster in AnTuTu (4,247,433 vs 3,622,315); the Redmi K90 Pro Max is noticeably lighter (210g vs 230g).
Profile comparison
Category scores
Redmi K90 Pro Max
Vivo X300 Ultra
What makes Redmi K90 Pro Max better?
- Bigger battery: 7560 vs 7000 mAh
- Faster wireless charging: 50W vs 40W
- Lighter: 210g vs 230g
- Cheaper at launch: $561 vs $950
- Longer battery life (89/100 vs 85/100)
- Better portability (54/100 vs 39/100)
What makes Vivo X300 Ultra better?
- Higher AnTuTu: 4247433 vs 3622315
- Better main camera: 200MP vs 50MP
- Higher performance (99/100 vs 97/100)
- Better camera (96/100 vs 78/100)
- Better display (89/100 vs 81/100)
Comparison verdict
Comparing the Redmi K90 Pro Max vs the Vivo X300 Ultra, the Vivo X300 Ultra scores 5 points higher (91/100 vs 86/100). In the "camera" category, the Vivo X300 Ultra leads (96/100 vs 78/100). Value score: Redmi K90 Pro Max — 90/100, Vivo X300 Ultra — 94/100; it shows how far a model sits above or below the usual level for its price, and is not part of the overall rating. In the "performance" category, the Vivo X300 Ultra and the Redmi K90 Pro Max are nearly equal (99/100 vs 97/100). In the "display" category, the Vivo X300 Ultra is a bit better (89/100 vs 81/100). In the "camera" category, the Vivo X300 Ultra notably outperforms the Redmi K90 Pro Max (96/100 vs 78/100). In the "battery" category, the Redmi K90 Pro Max and the Vivo X300 Ultra are nearly equal (89/100 vs 85/100). In the "portability" category, the Redmi K90 Pro Max notably outperforms the Vivo X300 Ultra (54/100 vs 39/100).
Specs comparison
| Specification | Redmi K90 Pro Max | Vivo X300 Ultra | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 8 Elite Gen 5 | Qualcomm Snapdragon 8 Elite Gen 5 | |
| AnTuTu | 3622315 | 4247433 | |
| Geekbench Single | 3639 | 3639 | |
| Geekbench Multi | 11047 | 11047 | |
| Display | 6.9" OLED | 6.8" LTPO OLED | |
| Resolution | 2608x1200 | 3168x1440 | |
| Refresh rate | 120 Hz | 120 Hz | |
| Battery | 7560 mAh | 7000 mAh | |
| Charging | 100W | 100W | |
| Wireless charging | 50W | 40W | |
| DXOMark (camera) | — | 170 | |
| Main camera | 50 MP | 200 MP | |
| Ultrawide | 50 MP | 50 MP | |
| Telephoto | 50 MP | 200 MP | |
| Front camera | 32 MP | 32 MP | |
| RAM | 16GB | 12GB / 16GB | |
| Storage | 256GB / 512GB / 1TB | 256GB / 512GB / 1TB | |
| OS | Android 16 | Android 16 | |
| Brightness (peak) | 3500 nits | — | |
| NFC | yes | yes | |
| Protection | IP68 | IP69 | |
| Dimensions | 163.3×77.8×7.9 mm | 163.0×76.8×8.2 mm | |
| Weight | 210 g | 230 g | |
| Launch price | $561 | $950 |
Camera comparison
Redmi K90 Pro Max
- Main: 50MP f/1.88
- Ultrawide: 50MP
- Telephoto: 50MP
- Front: 32MP
Vivo X300 Ultra
- Main: 200MP f/1.6
- Ultrawide: 50MP
- Telephoto: 200MP
- Front: 32MP
Display comparison
Redmi K90 Pro Max
- 6.9" OLED
- Resolution: 2608x1200
- Refresh rate: 120 Hz
Vivo X300 Ultra
- 6.8" LTPO OLED
- Resolution: 3168x1440
- Refresh rate: 120 Hz
Battery and charging
Redmi K90 Pro Max
- 7560 mAh
- Wired: 100W
- Wireless: 50W
Vivo X300 Ultra
- 7000 mAh
- NanoReview test: web browsing 10:18 hrs, total 29:11 hrs
- Wired: 100W
- Wireless: 40W
Overall performance score
We compared Redmi K90 Pro Max and Vivo X300 Ultra, covering their specs and all relevant benchmarks.
Vivo X300 Ultra leads Redmi K90 Pro Max by 14.7% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Launch price difference: $389. Redmi K90 Pro Max was $389 cheaper at launch.
Detailed category analysis
performance
In the "performance" category, the Vivo X300 Ultra and the Redmi K90 Pro Max are nearly equal (99/100 vs 97/100).
display
In the "display" category, the Vivo X300 Ultra is a bit better (89/100 vs 81/100).
camera
In the "camera" category, the Vivo X300 Ultra notably outperforms the Redmi K90 Pro Max (96/100 vs 78/100).
battery
In the "battery" category, the Redmi K90 Pro Max and the Vivo X300 Ultra are nearly equal (89/100 vs 85/100).
portability
In the "portability" category, the Redmi K90 Pro Max notably outperforms the Vivo X300 Ultra (54/100 vs 39/100).
Frequently asked questions
Which is better: the Redmi K90 Pro Max or the Vivo X300 Ultra?
The Vivo X300 Ultra edges out the Redmi K90 Pro Max by just 5 points — the two devices are very close in overall level.
What is the rating of the Redmi K90 Pro Max and the Vivo X300 Ultra?
The Redmi K90 Pro Max has a MobileRank rating of 86/100, the Vivo X300 Ultra — 91/100.
Which has the better camera: the Redmi K90 Pro Max or the Vivo X300 Ultra?
The Vivo X300 Ultra leads on camera score (96/100 vs 78/100).
Should you choose the Redmi K90 Pro Max over the Vivo X300 Ultra?
The Redmi K90 Pro 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, budget-conscious buyers.