Redmi K90 Ultra vs Vivo X300 FE
The Redmi K90 Ultra (2026) runs on the Qualcomm Snapdragon 8 Elite, while the Vivo X300 FE (2026) runs on the Snapdragon 8 Elite Gen 5; estimated prices are $420 and $699. By overall MobileRank rating, the Vivo X300 FE leads — 81/100 vs 75/100 (a 6-point difference). Key differences: the Redmi K90 Ultra has the bigger battery (8550 mAh vs 6500); the Redmi K90 Ultra is faster in AnTuTu (3,119,308 vs 2,869,139); the Vivo X300 FE is noticeably lighter (190g vs 227g).
Redmi K90 Ultra
Vivo X300 FE
- Higher AnTuTu: 3119308 vs 2869139
- Bigger battery: 8550 vs 6500 mAh
- Faster charging: 100W vs 90W
- Higher refresh rate: 165Hz vs 120Hz
- Cheaper: $420 vs $699
- Longer battery life (92/100 vs 81/100)
- Better display (94/100 vs 85/100)
- Better value for money (86/100 vs 74/100)
- Better Geekbench Single: 3640 vs 3041
- Better Geekbench Multi: 11033 vs 9494
- Lighter: 190g vs 227g
- Higher performance (94/100 vs 92/100)
- Better camera (64/100 vs 37/100)
- Better portability (65/100 vs 40/100)
Comparing the Redmi K90 Ultra vs the Vivo X300 FE, the Vivo X300 FE scores 6 points higher (81/100 vs 75/100). In the "camera" category, the Vivo X300 FE leads (64/100 vs 37/100). In the "battery" category, the Redmi K90 Ultra leads (92/100 vs 81/100). In the "value for money" category, the Redmi K90 Ultra leads (86/100 vs 74/100). In the "performance" category, the Vivo X300 FE and the Redmi K90 Ultra are nearly equal (94/100 vs 92/100). In the "display" category, the Redmi K90 Ultra is a bit better (94/100 vs 85/100). In the "camera" category, the Vivo X300 FE notably outperforms the Redmi K90 Ultra (64/100 vs 37/100). In the "battery" category, the Redmi K90 Ultra is a bit better (92/100 vs 81/100). In the "portability" category, the Vivo X300 FE notably outperforms the Redmi K90 Ultra (65/100 vs 40/100). In the "value for money" category, the Redmi K90 Ultra is a bit better (86/100 vs 74/100).
| Specification | Redmi K90 Ultra | Vivo X300 FE | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 8 Elite | Snapdragon 8 Elite Gen 5 | |
| AnTuTu | 3119308 | 2869139 | |
| Geekbench Single | 3041 | 3640 | |
| Geekbench Multi | 9494 | 11033 | |
| Display | 6.8" AMOLED | 6.3" LTPO AMOLED | |
| Resolution | 1280x2772 | 1216x2640 | |
| Refresh rate | 165 Hz | 120 Hz | |
| Battery | 8550 mAh | 6500 mAh | |
| Charging | 100W | 90W | |
| Wireless charging | — | 40W | |
| Main camera | 50 MP | 50 MP | |
| Ultrawide | 8 MP | 8 MP | |
| Telephoto | 0 MP | 50 MP | |
| Front camera | 20 MP | 50 MP | |
| RAM | 12GB / 16GB | 12GB | |
| Storage | 256GB / 512GB | 256GB / 512GB | |
| OS | Android 16 | Android 16 | |
| Brightness (peak) | 3500 nits | 5000 nits | |
| NFC | yes | yes | |
| Protection | IP68/IP69 | IP68 | |
| Dimensions | 162.9×77.9×8.2 mm | 150.8×71.8×8.0 mm | |
| Weight | 227 g | 190 g | |
| Price | $420 | $699 |
Redmi K90 Ultra
- Main: 50MP f/1.7
- Ultrawide: 8MP
- Front: 20MP
Vivo X300 FE
- Main: 50MP f/f/1.6
- Ultrawide: 8MP
- Telephoto: 50MP
- Front: 50MP
Redmi K90 Ultra
- 6.8" AMOLED
- Resolution: 1280x2772
- Refresh rate: 165 Hz
Vivo X300 FE
- 6.3" LTPO AMOLED
- Resolution: 1216x2640
- Refresh rate: 120 Hz
Redmi K90 Ultra
- 8550 mAh
- Wired: 100W
- Wireless charging: no data
Vivo X300 FE
- 6500 mAh
- Wired: 90W
- Wireless: 40W
We compared Redmi K90 Ultra and Vivo X300 FE, covering their specs and all relevant benchmarks.
Redmi K90 Ultra leads Vivo X300 FE by 8.7% in our overall performance rating.
Price difference: $279. Redmi K90 Ultra is cheaper by $279.
performance
In the "performance" category, the Vivo X300 FE and the Redmi K90 Ultra are nearly equal (94/100 vs 92/100).
display
In the "display" category, the Redmi K90 Ultra is a bit better (94/100 vs 85/100).
camera
In the "camera" category, the Vivo X300 FE notably outperforms the Redmi K90 Ultra (64/100 vs 37/100).
battery
In the "battery" category, the Redmi K90 Ultra is a bit better (92/100 vs 81/100).
portability
In the "portability" category, the Vivo X300 FE notably outperforms the Redmi K90 Ultra (65/100 vs 40/100).
value for money
In the "value for money" category, the Redmi K90 Ultra is a bit better (86/100 vs 74/100).
Which is better: the Redmi K90 Ultra or the Vivo X300 FE?
The Vivo X300 FE edges out the Redmi K90 Ultra by just 6 points — the two devices are very close in overall level.
What is the rating of the Redmi K90 Ultra and the Vivo X300 FE?
The Redmi K90 Ultra has a MobileRank rating of 75/100, the Vivo X300 FE — 81/100.
Which has the better camera: the Redmi K90 Ultra or the Vivo X300 FE?
The Vivo X300 FE leads on camera score (64/100 vs 37/100).
Should you choose the Redmi K90 Ultra over the Vivo X300 FE?
The Redmi K90 Ultra is a better fit for gamers and power users, those who care about battery life, budget-conscious buyers. The Vivo X300 FE is a better fit for gamers and power users, those who care about battery life.