Redmi K90 Ultra vs Vivo iQOO 15R
The Redmi K90 Ultra (2026) runs on the Qualcomm Snapdragon 8 Elite, while the Vivo iQOO 15R (2026) runs on the Qualcomm Snapdragon 8 Gen 5; launch prices were $420 and $450. By overall MobileRank rating, the Redmi K90 Ultra leads — 73/100 vs 72/100 (a 1-point difference). Key differences: the Redmi K90 Ultra has the bigger battery (8550 mAh vs 6500); the Redmi K90 Ultra is faster in AnTuTu (3,233,695 vs 3,047,741); the Vivo iQOO 15R is noticeably lighter (197g vs 227g).
Profile comparison
Category scores
Redmi K90 Ultra
Vivo iQOO 15R
What makes Redmi K90 Ultra better?
- Higher AnTuTu: 3233695 vs 3047741
- Better Geekbench Single: 3013 vs 2833
- Better Geekbench Multi: 9287 vs 9119
- Bigger battery: 8550 vs 6500 mAh
- Higher refresh rate: 165Hz vs 144Hz
- Cheaper at launch: $420 vs $450
- Higher performance (92/100 vs 90/100)
- Better camera (37/100 vs 35/100)
- Longer battery life (78/100 vs 74/100)
What makes Vivo iQOO 15R better?
- Faster charging: 120W vs 100W
- Lighter: 197g vs 227g
- Better portability (62/100 vs 40/100)
Comparison verdict
Comparing the Redmi K90 Ultra vs the Vivo iQOO 15R, the Redmi K90 Ultra scores 1 points higher (73/100 vs 72/100). Value score: Redmi K90 Ultra — 72/100, Vivo iQOO 15R — 68/100; 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 iQOO 15R 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 Redmi K90 Ultra and the Vivo iQOO 15R are nearly equal (37/100 vs 35/100). In the "battery" category, the Redmi K90 Ultra and the Vivo iQOO 15R are nearly equal (78/100 vs 74/100). In the "portability" category, the Vivo iQOO 15R notably outperforms the Redmi K90 Ultra (62/100 vs 40/100).
Specs comparison
| Specification | Redmi K90 Ultra | Vivo iQOO 15R | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 8 Elite | Qualcomm Snapdragon 8 Gen 5 | |
| AnTuTu | 3233695 | 3047741 | |
| Geekbench Single | 3013 | 2833 | |
| Geekbench Multi | 9287 | 9119 | |
| Display | 6.8" AMOLED | 6.8" LTPO AMOLED | |
| Resolution | 1280x2772 | 2800x1260 | |
| Refresh rate | 165 Hz | 144 Hz | |
| Battery | 8550 mAh | 6500 mAh | |
| Charging | 100W | 120W | |
| Main camera | 50 MP | 50 MP | |
| Ultrawide | 8 MP | 8 MP | |
| Front camera | 20 MP | 16 MP | |
| RAM | 12GB / 16GB | 8GB / 12GB / 16GB | |
| 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 | 157.6×74.4×7.9 mm | |
| Weight | 227 g | 197 g | |
| Launch price | $420 | $450 |
Camera comparison
Redmi K90 Ultra
- Main: 50MP f/1.7
- Ultrawide: 8MP
- Front: 20MP
Vivo iQOO 15R
- Main: 50MP f/1.8
- Ultrawide: 8MP
- Front: 16MP
Display comparison
Redmi K90 Ultra
- 6.8" AMOLED
- Resolution: 1280x2772
- Refresh rate: 165 Hz
Vivo iQOO 15R
- 6.8" LTPO AMOLED
- Resolution: 2800x1260
- Refresh rate: 144 Hz
Battery and charging
Redmi K90 Ultra
- 8550 mAh
- Wired: 100W
- No wireless charging
Vivo iQOO 15R
- 6500 mAh
- Wired: 120W
- No wireless charging
Overall performance score
We compared Redmi K90 Ultra and Vivo iQOO 15R, covering their specs and all relevant benchmarks.
Redmi K90 Ultra leads Vivo iQOO 15R by 6.1% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Launch price difference: $30. Redmi K90 Ultra was $30 cheaper at launch.
Detailed category analysis
performance
In the "performance" category, the Redmi K90 Ultra and the Vivo iQOO 15R 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 Redmi K90 Ultra and the Vivo iQOO 15R are nearly equal (37/100 vs 35/100).
battery
In the "battery" category, the Redmi K90 Ultra and the Vivo iQOO 15R are nearly equal (78/100 vs 74/100).
portability
In the "portability" category, the Vivo iQOO 15R notably outperforms the Redmi K90 Ultra (62/100 vs 40/100).
Frequently asked questions
Which is better: the Redmi K90 Ultra or the Vivo iQOO 15R?
The Redmi K90 Ultra edges out the Vivo iQOO 15R by just 1 points — the two devices are very close in overall level.
What is the rating of the Redmi K90 Ultra and the Vivo iQOO 15R?
The Redmi K90 Ultra has a MobileRank rating of 73/100, the Vivo iQOO 15R — 72/100.
Should you choose the Redmi K90 Ultra over the Vivo iQOO 15R?
The Redmi K90 Ultra is a better fit for gamers and power users, those who care about battery life. The Vivo iQOO 15R is a better fit for gamers and power users.