Realme 15T vs Redmi K90 Ultra
The Realme 15T (2026) runs on the MediaTek Dimensity 6400 Max, while the Redmi K90 Ultra (2026) runs on the Qualcomm Snapdragon 8 Elite; launch prices were $250 and $420. By overall MobileRank rating, the Redmi K90 Ultra leads — 73/100 vs 50/100 (a 23-point difference). Key differences: the Redmi K90 Ultra has the bigger battery (8550 mAh vs 7000); the Redmi K90 Ultra is faster in AnTuTu (3,233,695 vs 581,041); the Redmi K90 Ultra has NFC for contactless payments, the Realme 15T doesn't; the Realme 15T is noticeably lighter (210g vs 227g).
Profile comparison
Category scores
Realme 15T
Redmi K90 Ultra
What makes Realme 15T better?
- Lighter: 210g vs 227g
- Cheaper at launch: $250 vs $420
- Better portability (55/100 vs 40/100)
What makes Redmi K90 Ultra better?
- Higher AnTuTu: 3233695 vs 581041
- Better Geekbench Single: 3013 vs 803
- Better Geekbench Multi: 9287 vs 2047
- Bigger battery: 8550 vs 7000 mAh
- Faster charging: 100W vs 60W
- Higher refresh rate: 165Hz vs 120Hz
- Higher performance (92/100 vs 45/100)
- Better camera (37/100 vs 32/100)
- Longer battery life (78/100 vs 63/100)
- Better display (94/100 vs 79/100)
Comparison verdict
Comparing the Realme 15T vs the Redmi K90 Ultra, the Redmi K90 Ultra scores 23 points higher (73/100 vs 50/100). In the "performance" category, the Redmi K90 Ultra leads (92/100 vs 45/100). In the "battery" category, the Redmi K90 Ultra leads (78/100 vs 63/100). Value score: Realme 15T — 50/100, Redmi K90 Ultra — 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 significantly outperforms the Realme 15T (92/100 vs 45/100). In the "display" category, the Redmi K90 Ultra notably outperforms the Realme 15T (94/100 vs 79/100). In the "camera" category, the Redmi K90 Ultra is a bit better (37/100 vs 32/100). In the "battery" category, the Redmi K90 Ultra notably outperforms the Realme 15T (78/100 vs 63/100). In the "portability" category, the Realme 15T notably outperforms the Redmi K90 Ultra (55/100 vs 40/100).
Specs comparison
| Specification | Realme 15T | Redmi K90 Ultra | |
|---|---|---|---|
| Processor | MediaTek Dimensity 6400 Max | Qualcomm Snapdragon 8 Elite | |
| AnTuTu | 581041 | 3233695 | |
| Geekbench Single | 803 | 3013 | |
| Geekbench Multi | 2047 | 9287 | |
| Display | 6.8" AMOLED | 6.8" AMOLED | |
| Resolution | 1080x2372 | 1280x2772 | |
| Refresh rate | 120 Hz | 165 Hz | |
| Battery | 7000 mAh | 8550 mAh | |
| Charging | 60W | 100W | |
| Main camera | 50 MP | 50 MP | |
| Ultrawide | 0 MP | 8 MP | |
| Front camera | 16 MP | 20 MP | |
| RAM | 8GB / 12GB | 12GB / 16GB | |
| Storage | 128GB / 256GB | 256GB / 512GB | |
| OS | Android 15, up to 3 major Android upgrades, Realme UI 6.0 | Android 16 | |
| Brightness (peak) | 4000 nits | 3500 nits | |
| NFC | no | yes | |
| Protection | IP68 | IP68/IP69 | |
| Dimensions | 158.4×75.2×7.8 mm | 162.9×77.9×8.2 mm | |
| Weight | 210 g | 227 g | |
| Launch price | $250 | $420 |
Camera comparison
Realme 15T
- Main: 50MP f/1.8
- Front: 16MP
Redmi K90 Ultra
- Main: 50MP f/1.7
- Ultrawide: 8MP
- Front: 20MP
Display comparison
Realme 15T
- 6.8" AMOLED
- Resolution: 1080x2372
- Refresh rate: 120 Hz
Redmi K90 Ultra
- 6.8" AMOLED
- Resolution: 1280x2772
- Refresh rate: 165 Hz
Battery and charging
Realme 15T
- 7000 mAh
- Wired: 60W
- No wireless charging
Redmi K90 Ultra
- 8550 mAh
- Wired: 100W
- No wireless charging
Overall performance score
We compared Realme 15T and Redmi K90 Ultra, covering their specs and all relevant benchmarks.
Redmi K90 Ultra leads Realme 15T by 82.0% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Launch price difference: $170. Realme 15T was $170 cheaper at launch.
Detailed category analysis
performance
In the "performance" category, the Redmi K90 Ultra significantly outperforms the Realme 15T (92/100 vs 45/100).
display
In the "display" category, the Redmi K90 Ultra notably outperforms the Realme 15T (94/100 vs 79/100).
camera
In the "camera" category, the Redmi K90 Ultra is a bit better (37/100 vs 32/100).
battery
In the "battery" category, the Redmi K90 Ultra notably outperforms the Realme 15T (78/100 vs 63/100).
portability
In the "portability" category, the Realme 15T notably outperforms the Redmi K90 Ultra (55/100 vs 40/100).
Frequently asked questions
Which is better: the Realme 15T or the Redmi K90 Ultra?
The Redmi K90 Ultra significantly outperforms the Realme 15T by 23 points (73/100 vs 50/100).
What is the rating of the Realme 15T and the Redmi K90 Ultra?
The Realme 15T has a MobileRank rating of 50/100, the Redmi K90 Ultra — 73/100.
Which has the better camera: the Realme 15T or the Redmi K90 Ultra?
The Redmi K90 Ultra leads on camera score (37/100 vs 32/100).
Which is more powerful: the Realme 15T or the Redmi K90 Ultra?
The Redmi K90 Ultra leads on performance (92/100 vs 45/100).
Should you choose the Realme 15T over the Redmi K90 Ultra?
The Redmi K90 Ultra is a better fit for gamers and power users, those who care about battery life.