Redmi 15 4G vs Redmi K90
The Redmi 15 4G (2025) runs on the Qualcomm Snapdragon 685, while the Redmi K90 (2025) runs on the Qualcomm Snapdragon 8 Elite. By overall MobileRank rating, the Redmi K90 leads — 76/100 vs 43/100 (a 33-point difference). Key differences: the Redmi K90 has the bigger battery (7100 mAh vs 7000); the Redmi K90 is faster in AnTuTu (3,077,585 vs 476,175); the Redmi K90 is noticeably lighter (206g vs 224g).
Profile comparison
Category scores
Redmi 15 4G
Redmi K90
What makes Redmi 15 4G better?
- Higher refresh rate: 144Hz vs 120Hz
- Overall rating 43/100
What makes Redmi K90 better?
- Higher AnTuTu: 3077585 vs 476175
- Better Geekbench Single: 3013 vs 466
- Better Geekbench Multi: 9287 vs 1396
- Bigger battery: 7100 vs 7000 mAh
- Faster charging: 100W vs 33W
- Lighter: 206g vs 224g
- Higher performance (91/100 vs 34/100)
- Better camera (58/100 vs 30/100)
- Longer battery life (72/100 vs 58/100)
- Better display (82/100 vs 74/100)
- Better portability (55/100 vs 39/100)
Comparison verdict
Comparing the Redmi 15 4G vs the Redmi K90, the Redmi K90 scores 33 points higher (76/100 vs 43/100). In the "performance" category, the Redmi K90 leads (91/100 vs 34/100). In the "camera" category, the Redmi K90 leads (58/100 vs 30/100). In the "battery" category, the Redmi K90 leads (72/100 vs 58/100). In the "performance" category, the Redmi K90 significantly outperforms the Redmi 15 4G (91/100 vs 34/100). In the "display" category, the Redmi K90 is a bit better (82/100 vs 74/100). In the "camera" category, the Redmi K90 notably outperforms the Redmi 15 4G (58/100 vs 30/100). In the "battery" category, the Redmi K90 is a bit better (72/100 vs 58/100). In the "portability" category, the Redmi K90 notably outperforms the Redmi 15 4G (55/100 vs 39/100).
Specs comparison
| Specification | Redmi 15 4G | Redmi K90 | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 685 | Qualcomm Snapdragon 8 Elite | |
| AnTuTu | 476175 | 3077585 | |
| Geekbench Single | 466 | 3013 | |
| Geekbench Multi | 1396 | 9287 | |
| Display | 6.9" IPS LCD | 6.6" AMOLED | |
| Resolution | 1080x2340 | 2510x1156 | |
| Refresh rate | 144 Hz | 120 Hz | |
| Battery | 7000 mAh | 7100 mAh | |
| Charging | 33W | 100W | |
| Main camera | 50 MP | 50 MP | |
| Ultrawide | 0 MP | 8 MP | |
| Telephoto | 0 MP | 50 MP | |
| Front camera | 8 MP | 20 MP | |
| RAM | 4GB / 6GB / 8GB | 12GB / 16GB | |
| Storage | 128GB / 256GB | 256GB / 512GB | |
| OS | Android 15, HyperOS 2 | Android 16 | |
| Brightness (peak) | — | 3500 nits | |
| NFC | yes | yes | |
| Protection | IP64 | IP68 | |
| Dimensions | 171.1×82.1×8.6 mm | 157.5×75.3×8.0 mm | |
| Weight | 224 g | 206 g | |
| Launch price | — | $401 |
Camera comparison
Redmi 15 4G
- Main: 50MP f/1.8
- Front: 8MP
Redmi K90
- Main: 50MP f/1.9
- Ultrawide: 8MP
- Telephoto: 50MP
- Front: 20MP
Display comparison
Redmi 15 4G
- 6.9" IPS LCD
- Resolution: 1080x2340
- Refresh rate: 144 Hz
Redmi K90
- 6.6" AMOLED
- Resolution: 2510x1156
- Refresh rate: 120 Hz
Battery and charging
Redmi 15 4G
- 7000 mAh
- Wired: 33W
- No wireless charging
Redmi K90
- 7100 mAh
- Wired: 100W
- No wireless charging
Overall performance score
We compared Redmi 15 4G and Redmi K90, covering their specs and all relevant benchmarks.
Redmi K90 leads Redmi 15 4G by 84.5% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Redmi 15 4G
Price unknownDetailed category analysis
performance
In the "performance" category, the Redmi K90 significantly outperforms the Redmi 15 4G (91/100 vs 34/100).
display
In the "display" category, the Redmi K90 is a bit better (82/100 vs 74/100).
camera
In the "camera" category, the Redmi K90 notably outperforms the Redmi 15 4G (58/100 vs 30/100).
battery
In the "battery" category, the Redmi K90 is a bit better (72/100 vs 58/100).
portability
In the "portability" category, the Redmi K90 notably outperforms the Redmi 15 4G (55/100 vs 39/100).
Frequently asked questions
Which is better: the Redmi 15 4G or the Redmi K90?
The Redmi K90 significantly outperforms the Redmi 15 4G by 33 points (76/100 vs 43/100).
What is the rating of the Redmi 15 4G and the Redmi K90?
The Redmi 15 4G has a MobileRank rating of 43/100, the Redmi K90 — 76/100.
Which has the better camera: the Redmi 15 4G or the Redmi K90?
The Redmi K90 leads on camera score (58/100 vs 30/100).
Which is more powerful: the Redmi 15 4G or the Redmi K90?
The Redmi K90 leads on performance (91/100 vs 34/100).
Should you choose the Redmi 15 4G over the Redmi K90?
The Redmi K90 is a better fit for gamers and power users, budget-conscious buyers.