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; launch prices were $420 and $651. By overall MobileRank rating, the Vivo X300 E leads — 79/100 vs 73/100 (a 6-point difference). Key differences: the Redmi K90 Ultra has the bigger battery (8550 mAh vs 7200); the Redmi K90 Ultra is faster in AnTuTu (3,233,695 vs 2,886,527); the Vivo X300 E is noticeably lighter (200g vs 227g).
Profile comparison
Category scores
Redmi K90 Ultra
Vivo X300 E
What makes Redmi K90 Ultra better?
- Higher AnTuTu: 3233695 vs 2886527
- Better Geekbench Single: 3013 vs 2833
- Better Geekbench Multi: 9287 vs 9119
- Bigger battery: 8550 vs 7200 mAh
- Faster charging: 100W vs 90W
- Higher refresh rate: 165Hz vs 144Hz
- Cheaper at launch: $420 vs $651
- Higher performance (92/100 vs 90/100)
- Longer battery life (78/100 vs 70/100)
What makes Vivo X300 E better?
- Lighter: 200g vs 227g
- Better camera (64/100 vs 37/100)
- Better portability (61/100 vs 40/100)
Comparison verdict
Comparing the Redmi K90 Ultra vs the Vivo X300 E, the Vivo X300 E scores 6 points higher (79/100 vs 73/100). In the "camera" category, the Vivo X300 E leads (64/100 vs 37/100). Value score: Redmi K90 Ultra — 72/100, Vivo X300 E — 72/100; 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 Redmi K90 Ultra and the Vivo X300 E are nearly equal (92/100 vs 90/100). 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 Redmi K90 Ultra is a bit better (78/100 vs 70/100). In the "portability" category, the Vivo X300 E notably outperforms the Redmi K90 Ultra (61/100 vs 40/100).
Specs comparison
| Specification | Redmi K90 Ultra | Vivo X300 E | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 8 Elite | Qualcomm Snapdragon 8 Gen 5 | |
| AnTuTu | 3233695 | 2886527 | |
| Geekbench Single | 3013 | 2833 | |
| Geekbench Multi | 9287 | 9119 | |
| 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 | |
| Launch price | $420 | $651 |
Camera comparison
Redmi K90 Ultra
- Main: 50MP f/1.7
- Ultrawide: 8MP
- Front: 20MP
Vivo X300 E
- Main: 50MP f/1.9
- Ultrawide: 8MP
- Telephoto: 50MP
- Front: 50MP
Display comparison
Redmi K90 Ultra
- 6.8" AMOLED
- Resolution: 1280x2772
- Refresh rate: 165 Hz
Vivo X300 E
- 6.6" AMOLED
- Resolution: 1260x2750
- Refresh rate: 144 Hz
Battery and charging
Redmi K90 Ultra
- 8550 mAh
- Wired: 100W
- No wireless charging
Vivo X300 E
- 7200 mAh
- Wired: 90W
- No wireless charging
Overall performance score
We compared Redmi K90 Ultra and Vivo X300 E, covering their specs and all relevant benchmarks.
Redmi K90 Ultra leads Vivo X300 E by 12.0% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Launch price difference: $231. Redmi K90 Ultra was $231 cheaper at launch.
Detailed category analysis
performance
In the "performance" category, the Redmi K90 Ultra and the Vivo X300 E are nearly equal (92/100 vs 90/100).
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 Redmi K90 Ultra is a bit better (78/100 vs 70/100).
portability
In the "portability" category, the Vivo X300 E notably outperforms the Redmi K90 Ultra (61/100 vs 40/100).
Frequently asked questions
Which is better: the Redmi K90 Ultra or the Vivo X300 E?
The Vivo X300 E 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 E?
The Redmi K90 Ultra has a MobileRank rating of 73/100, the Vivo X300 E — 79/100.
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.