Redmi 17C vs Redmi K90 Ultra
The Redmi 17C (2026) runs on the MediaTek Helio G81 Ultra, while the Redmi K90 Ultra (2026) runs on the Qualcomm Snapdragon 8 Elite; estimated prices are $100 and $420. By overall MobileRank rating, the Redmi K90 Ultra leads — 75/100 vs 33/100 (a 42-point difference). Key differences: the Redmi K90 Ultra has the bigger battery (8550 mAh vs 5160); the main camera is 13 MP vs 50 MP; the Redmi K90 Ultra is faster in AnTuTu (3,119,308 vs 358,383); the Redmi K90 Ultra has NFC for contactless payments, the Redmi 17C doesn't; the Redmi 17C is noticeably lighter (206g vs 227g).
Redmi 17C
Redmi K90 Ultra
- Lighter: 206g vs 227g
- Cheaper: $100 vs $420
- Better portability (53/100 vs 40/100)
- Higher AnTuTu: 3119308 vs 358383
- Better Geekbench Single: 3041 vs 432
- Better Geekbench Multi: 9494 vs 1416
- Bigger battery: 8550 vs 5160 mAh
- Faster charging: 100W vs 18W
- Better main camera: 50MP vs 13MP
- Higher refresh rate: 165Hz vs 120Hz
- Higher performance (92/100 vs 30/100)
- Better camera (37/100 vs 10/100)
- Longer battery life (92/100 vs 54/100)
- Better display (94/100 vs 55/100)
- Better value for money (86/100 vs 50/100)
Comparing the Redmi 17C vs the Redmi K90 Ultra, the Redmi K90 Ultra scores 42 points higher (75/100 vs 33/100). In the "performance" category, the Redmi K90 Ultra leads (92/100 vs 30/100). In the "camera" category, the Redmi K90 Ultra leads (37/100 vs 10/100). In the "battery" category, the Redmi K90 Ultra leads (92/100 vs 54/100). In the "value for money" category, the Redmi K90 Ultra leads (86/100 vs 50/100). In the "performance" category, the Redmi K90 Ultra significantly outperforms the Redmi 17C (92/100 vs 30/100). In the "display" category, the Redmi K90 Ultra significantly outperforms the Redmi 17C (94/100 vs 55/100). In the "camera" category, the Redmi K90 Ultra notably outperforms the Redmi 17C (37/100 vs 10/100). In the "battery" category, the Redmi K90 Ultra significantly outperforms the Redmi 17C (92/100 vs 54/100). In the "portability" category, the Redmi 17C is a bit better (53/100 vs 40/100). In the "value for money" category, the Redmi K90 Ultra significantly outperforms the Redmi 17C (86/100 vs 50/100).
| Specification | Redmi 17C | Redmi K90 Ultra | |
|---|---|---|---|
| Processor | MediaTek Helio G81 Ultra | Qualcomm Snapdragon 8 Elite | |
| AnTuTu | 358383 | 3119308 | |
| Geekbench Single | 432 | 3041 | |
| Geekbench Multi | 1416 | 9494 | |
| Display | 6.9" IPS LCD | 6.8" AMOLED | |
| Resolution | 720x1640 | 1280x2772 | |
| Refresh rate | 120 Hz | 165 Hz | |
| Battery | 5160 mAh | 8550 mAh | |
| Charging | 18W | 100W | |
| Main camera | 13 MP | 50 MP | |
| Ultrawide | 0 MP | 8 MP | |
| Front camera | 5 MP | 20 MP | |
| RAM | 4GB | 12GB / 16GB | |
| Storage | 64GB / 128GB | 256GB / 512GB | |
| OS | Android 16 | Android 16 | |
| Brightness (peak) | 600 nits | 3500 nits | |
| NFC | no | yes | |
| Protection | — | IP68/IP69 | |
| Dimensions | — | 162.9×77.9×8.2 mm | |
| Weight | 206 g | 227 g | |
| Price | $100 | $420 |
Redmi 17C
- Main: 13MP f/2.2
- Front: 5MP
Redmi K90 Ultra
- Main: 50MP f/1.7
- Ultrawide: 8MP
- Front: 20MP
Redmi 17C
- 6.9" IPS LCD
- Resolution: 720x1640
- Refresh rate: 120 Hz
Redmi K90 Ultra
- 6.8" AMOLED
- Resolution: 1280x2772
- Refresh rate: 165 Hz
Redmi 17C
- 5160 mAh
- Wired: 18W
- Wireless charging: no data
Redmi K90 Ultra
- 8550 mAh
- Wired: 100W
- Wireless charging: no data
We compared Redmi 17C and Redmi K90 Ultra, covering their specs and all relevant benchmarks.
Redmi K90 Ultra leads Redmi 17C by 88.5% in our overall performance rating.
Price difference: $320. Redmi 17C is cheaper by $320.
performance
In the "performance" category, the Redmi K90 Ultra significantly outperforms the Redmi 17C (92/100 vs 30/100).
display
In the "display" category, the Redmi K90 Ultra significantly outperforms the Redmi 17C (94/100 vs 55/100).
camera
In the "camera" category, the Redmi K90 Ultra notably outperforms the Redmi 17C (37/100 vs 10/100).
battery
In the "battery" category, the Redmi K90 Ultra significantly outperforms the Redmi 17C (92/100 vs 54/100).
portability
In the "portability" category, the Redmi 17C is a bit better (53/100 vs 40/100).
value for money
In the "value for money" category, the Redmi K90 Ultra significantly outperforms the Redmi 17C (86/100 vs 50/100).
Which is better: the Redmi 17C or the Redmi K90 Ultra?
The Redmi K90 Ultra significantly outperforms the Redmi 17C by 42 points (75/100 vs 33/100).
What is the rating of the Redmi 17C and the Redmi K90 Ultra?
The Redmi 17C has a MobileRank rating of 33/100, the Redmi K90 Ultra — 75/100.
Which has the better camera: the Redmi 17C or the Redmi K90 Ultra?
The Redmi K90 Ultra leads on camera score (37/100 vs 10/100).
Which is more powerful: the Redmi 17C or the Redmi K90 Ultra?
The Redmi K90 Ultra leads on performance (92/100 vs 30/100).
Should you choose the Redmi 17C over the Redmi K90 Ultra?
The Redmi 17C is a better fit for everyday use. The Redmi K90 Ultra is a better fit for gamers and power users, those who care about battery life, budget-conscious buyers.