Redmi K90 vs Vivo iQOO 15
The Redmi K90 (2025) runs on the Qualcomm Snapdragon 8 Elite, while the Vivo iQOO 15 (2025) runs on the Qualcomm Snapdragon 8 Elite; estimated prices are $401 and $599. By overall MobileRank rating, the Vivo iQOO 15 leads — 77/100 vs 68/100 (a 9-point difference). Key differences: the Redmi K90 has the bigger battery (7100 mAh vs 7000); the Vivo iQOO 15 is faster in AnTuTu (3,740,528 vs 3,088,357).
Redmi K90
Vivo iQOO 15
- Bigger battery: 7100 vs 7000 mAh
- Lighter: 206g vs 215g
- Cheaper: $401 vs $599
- Better design/ergonomics (42/100 vs 31/100)
- Better value for money (82/100 vs 69/100)
- Higher AnTuTu: 3740528 vs 3088357
- Higher refresh rate: 144Hz vs 120Hz
- Higher performance (78/100 vs 69/100)
- Better camera (74/100 vs 53/100)
- Longer battery life (77/100 vs 71/100)
Comparing the Redmi K90 vs the Vivo iQOO 15, the Vivo iQOO 15 scores 9 points higher (77/100 vs 68/100). In the "camera" category, the Vivo iQOO 15 leads (74/100 vs 53/100). In the "value for money" category, the Redmi K90 leads (82/100 vs 69/100). In the "performance" category, the Vivo iQOO 15 is a bit better (78/100 vs 69/100). In the "display" category, both devices are on the same level — 100/100. In the "camera" category, the Vivo iQOO 15 notably outperforms the Redmi K90 (74/100 vs 53/100). In the "battery" category, the Vivo iQOO 15 is a bit better (77/100 vs 71/100). In the "design" category, the Redmi K90 is a bit better (42/100 vs 31/100). In the "value for money" category, the Redmi K90 is a bit better (82/100 vs 69/100).
| Specification | Redmi K90 | Vivo iQOO 15 | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 8 Elite | Qualcomm Snapdragon 8 Elite | |
| AnTuTu | 3088357 | 3740528 | |
| Geekbench Single | 3050 | 3050 | |
| Geekbench Multi | 9300 | 9300 | |
| Display | 6.6" AMOLED | 6.8" LTPO AMOLED | |
| Resolution | 2510x1156 | 1440x3168 | |
| Refresh rate | 120 Hz | 144 Hz | |
| Battery | 7100 mAh | 7000 mAh | |
| Charging | 100W | 100W | |
| Wireless charging | 0W | 40W | |
| Main camera | 50 MP | 50 MP | |
| Ultrawide | 8 MP | 50 MP | |
| Telephoto | 50 MP | 50 MP | |
| Front camera | 20 MP | 32 MP | |
| RAM | 12GB / 16GB | 12GB / 16GB | |
| Storage | 256GB / 512GB | 256GB / 512GB / 1TB | |
| OS | Android 16 | Android 16 | |
| Brightness (peak) | 3500 nits | 6000 nits | |
| NFC | yes | yes | |
| Protection | IP68 | IP68 | |
| Dimensions | 157.5×75.3×8.0 mm | 163.7×76.8×8.1 mm | |
| Weight | 206 g | 215 g | |
| Price | $401 | $599 |
Redmi K90
- Main: 50MP f/f/1.9
- Ultrawide: 8MP
- Telephoto: 50MP
- Front: 20MP
Vivo iQOO 15
- Main: 50MP f/f/1.9
- Ultrawide: 50MP
- Telephoto: 50MP
- Front: 32MP
Redmi K90
- 6.6" AMOLED
- Resolution: 2510x1156
- Refresh rate: 120 Hz
Vivo iQOO 15
- 6.8" LTPO AMOLED
- Resolution: 1440x3168
- Refresh rate: 144 Hz
Redmi K90
- 7100 mAh
- Wired: 100W
- No wireless charging
Vivo iQOO 15
- 7000 mAh
- NanoReview test: web browsing 18:52 hrs, total 39:26 hrs
- Wired: 100W
- Wireless: 40W
We compared Redmi K90 and Vivo iQOO 15, covering their specs and all relevant benchmarks.
Vivo iQOO 15 leads Redmi K90 by 17.4% in our overall performance rating.
Price difference: $198. Redmi K90 is cheaper by $198.
performance
In the "performance" category, the Vivo iQOO 15 is a bit better (78/100 vs 69/100).
display
In the "display" category, both devices are on the same level — 100/100.
camera
In the "camera" category, the Vivo iQOO 15 notably outperforms the Redmi K90 (74/100 vs 53/100).
battery
In the "battery" category, the Vivo iQOO 15 is a bit better (77/100 vs 71/100).
design
In the "design" category, the Redmi K90 is a bit better (42/100 vs 31/100).
value for money
In the "value for money" category, the Redmi K90 is a bit better (82/100 vs 69/100).
Which is better: the Redmi K90 or the Vivo iQOO 15?
The Vivo iQOO 15 edges out the Redmi K90 by just 9 points — the two devices are very close in overall level.
What is the rating of the Redmi K90 and the Vivo iQOO 15?
The Redmi K90 has a MobileRank rating of 68/100, the Vivo iQOO 15 — 77/100.
Which has the better camera: the Redmi K90 or the Vivo iQOO 15?
The Vivo iQOO 15 leads on camera score (74/100 vs 53/100).
Which is more powerful: the Redmi K90 or the Vivo iQOO 15?
The Vivo iQOO 15 leads on performance (78/100 vs 69/100).
Should you choose the Redmi K90 over the Vivo iQOO 15?
The Redmi K90 is a better fit for active users, budget-conscious buyers. The Vivo iQOO 15 is a better fit for active users, those who care about battery life.