Redmi K90 Ultra vs Vivo X300 E
The Redmi K90 Ultra (2026) runs on the Qualcomm Snapdragon 8 Elite, while the Vivo X300 E (2026) runs on the Qualcomm Snapdragon 8 Gen 5; estimated prices are $420 and $651. By overall MobileRank rating, the Vivo X300 E leads — 81/100 vs 73/100 (a 8-point difference). Key differences: the Redmi K90 Ultra has the bigger battery (8550 mAh vs 7200); the Redmi K90 Ultra is faster in AnTuTu (3,119,308 vs 3,068,952); the Vivo X300 E is noticeably lighter (200g vs 227g).
Redmi K90 Ultra
Vivo X300 E
- Higher AnTuTu: 3119308 vs 3068952
- Better Geekbench Single: 3041 vs 2903
- Bigger battery: 8550 vs 7200 mAh
- Faster charging: 100W vs 90W
- Higher refresh rate: 165Hz vs 144Hz
- Cheaper: $420 vs $651
- Higher performance (92/100 vs 91/100)
- Better Geekbench Multi: 9602 vs 9494
- Lighter: 200g vs 227g
- Better camera (64/100 vs 37/100)
- Longer battery life (83/100 vs 78/100)
- Better portability (61/100 vs 40/100)
Comparing the Redmi K90 Ultra vs the Vivo X300 E, the Vivo X300 E scores 8 points higher (81/100 vs 73/100). In the "camera" category, the Vivo X300 E leads (64/100 vs 37/100). In the "performance" category, the Redmi K90 Ultra and the Vivo X300 E are nearly equal (92/100 vs 91/100). In the "display" category, both devices are on the same level — 94/100. In the "camera" category, the Vivo X300 E notably outperforms the Redmi K90 Ultra (64/100 vs 37/100). In the "battery" category, the Vivo X300 E is a bit better (83/100 vs 78/100). In the "portability" category, the Vivo X300 E notably outperforms the Redmi K90 Ultra (61/100 vs 40/100).
| Specification | Redmi K90 Ultra | Vivo X300 E | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 8 Elite | Qualcomm Snapdragon 8 Gen 5 | |
| AnTuTu | 3119308 | 3068952 | |
| Geekbench Single | 3041 | 2903 | |
| Geekbench Multi | 9494 | 9602 | |
| Display | 6.8" AMOLED | 6.6" AMOLED | |
| Resolution | 1280x2772 | 1260x2750 | |
| Refresh rate | 165 Hz | 144 Hz | |
| Battery | 8550 mAh | 7200 mAh | |
| Charging | 100W | 90W | |
| 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/IP69 | |
| Dimensions | 162.9×77.9×8.2 mm | 157.5×74.3×7.8 mm | |
| Weight | 227 g | 200 g | |
| Price | $420 | $651 |
Redmi K90 Ultra
- Main: 50MP f/1.7
- Ultrawide: 8MP
- Front: 20MP
Vivo X300 E
- Main: 50MP f/f/1.9
- Ultrawide: 8MP
- Telephoto: 50MP
- Front: 50MP
Redmi K90 Ultra
- 6.8" AMOLED
- Resolution: 1280x2772
- Refresh rate: 165 Hz
Vivo X300 E
- 6.6" AMOLED
- Resolution: 1260x2750
- Refresh rate: 144 Hz
Redmi K90 Ultra
- 8550 mAh
- Wired: 100W
- No wireless charging
Vivo X300 E
- 7200 mAh
- Wired: 90W
- Wireless charging: no data
We compared Redmi K90 Ultra and Vivo X300 E, covering their specs and all relevant benchmarks.
Redmi K90 Ultra leads Vivo X300 E by 1.6% in our overall performance rating.
Price difference: $231. Redmi K90 Ultra is cheaper by $231.
performance
In the "performance" category, the Redmi K90 Ultra and the Vivo X300 E are nearly equal (92/100 vs 91/100).
display
In the "display" category, both devices are on the same level — 94/100.
camera
In the "camera" category, the Vivo X300 E notably outperforms the Redmi K90 Ultra (64/100 vs 37/100).
battery
In the "battery" category, the Vivo X300 E is a bit better (83/100 vs 78/100).
portability
In the "portability" category, the Vivo X300 E notably outperforms the Redmi K90 Ultra (61/100 vs 40/100).
Which is better: the Redmi K90 Ultra or the Vivo X300 E?
The Vivo X300 E edges out the Redmi K90 Ultra by just 8 points — the two devices are very close in overall level.
What is the rating of the Redmi K90 Ultra and the Vivo X300 E?
The Redmi K90 Ultra has a MobileRank rating of 73/100, the Vivo X300 E — 81/100.
Which has the better camera: the Redmi K90 Ultra or the Vivo X300 E?
The Vivo X300 E leads on camera score (64/100 vs 37/100).
Should you choose the Redmi K90 Ultra over the Vivo X300 E?
The Redmi K90 Ultra is a better fit for gamers and power users, those who care about battery life. The Vivo X300 E is a better fit for gamers and power users, those who care about battery life.