Infinix Smart 20 vs Redmi K90
The Infinix Smart 20 (2026) runs on the MediaTek Helio G81 Ultimate, while the Redmi K90 (2025) runs on the Qualcomm Snapdragon 8 Elite; launch prices were $149 and $401. By overall MobileRank rating, the Redmi K90 leads — 76/100 vs 33/100 (a 43-point difference). Key differences: the Redmi K90 has the bigger battery (7100 mAh vs 5200); the main camera is 8 MP vs 50 MP; the Redmi K90 is faster in AnTuTu (3,088,357 vs 358,383).
Infinix Smart 20
Redmi K90
- Cheaper at launch: $149 vs $401
- Better portability (68/100 vs 55/100)
- Higher AnTuTu: 3088357 vs 358383
- Better Geekbench Single: 3041 vs 432
- Better Geekbench Multi: 9494 vs 1416
- Bigger battery: 7100 vs 5200 mAh
- Faster charging: 100W vs 15W
- Better main camera: 50MP vs 8MP
- Higher performance (92/100 vs 30/100)
- Better camera (58/100 vs 10/100)
- Longer battery life (72/100 vs 48/100)
- Better display (82/100 vs 55/100)
Comparing the Infinix Smart 20 vs the Redmi K90, the Redmi K90 scores 43 points higher (76/100 vs 33/100). In the "performance" category, the Redmi K90 leads (92/100 vs 30/100). In the "camera" category, the Redmi K90 leads (58/100 vs 10/100). In the "battery" category, the Redmi K90 leads (72/100 vs 48/100). Value score: Infinix Smart 20 — 42/100, Redmi K90 — 90/100; it is biased by price level, so it should not be compared directly between devices at different prices. In the "performance" category, the Redmi K90 significantly outperforms the Infinix Smart 20 (92/100 vs 30/100). In the "display" category, the Redmi K90 notably outperforms the Infinix Smart 20 (82/100 vs 55/100). In the "camera" category, the Redmi K90 significantly outperforms the Infinix Smart 20 (58/100 vs 10/100). In the "battery" category, the Redmi K90 notably outperforms the Infinix Smart 20 (72/100 vs 48/100). In the "portability" category, the Infinix Smart 20 is a bit better (68/100 vs 55/100).
| Specification | Infinix Smart 20 | Redmi K90 | |
|---|---|---|---|
| Processor | MediaTek Helio G81 Ultimate | Qualcomm Snapdragon 8 Elite | |
| AnTuTu | 358383 | 3088357 | |
| Geekbench Single | 432 | 3041 | |
| Geekbench Multi | 1416 | 9494 | |
| Display | 6.8" IPS LCD | 6.6" AMOLED | |
| Resolution | 1576x720 | 2510x1156 | |
| Refresh rate | 120 Hz | 120 Hz | |
| Battery | 5200 mAh | 7100 mAh | |
| Charging | 15W | 100W | |
| Main camera | 8 MP | 50 MP | |
| Ultrawide | 0 MP | 8 MP | |
| Telephoto | 0 MP | 50 MP | |
| Front camera | 8 MP | 20 MP | |
| RAM | 4GB | 12GB / 16GB | |
| Storage | 64GB / 128GB | 256GB / 512GB | |
| OS | Android 16 | Android 16 | |
| Brightness (peak) | 700 nits | 3500 nits | |
| NFC | yes | yes | |
| Protection | IP64 | IP68 | |
| Dimensions | 167.7×78.8×7.7 mm | 157.5×75.3×8.0 mm | |
| Weight | — | 206 g | |
| Launch price | $149 | $401 |
Infinix Smart 20
- Main: 8MP f/f/2.0
- Front: 8MP
Redmi K90
- Main: 50MP f/f/1.9
- Ultrawide: 8MP
- Telephoto: 50MP
- Front: 20MP
Infinix Smart 20
- 6.8" IPS LCD
- Resolution: 1576x720
- Refresh rate: 120 Hz
Redmi K90
- 6.6" AMOLED
- Resolution: 2510x1156
- Refresh rate: 120 Hz
Infinix Smart 20
- 5200 mAh
- Wired: 15W
- No wireless charging
Redmi K90
- 7100 mAh
- Wired: 100W
- No wireless charging
We compared Infinix Smart 20 and Redmi K90, covering their specs and all relevant benchmarks.
Redmi K90 leads Infinix Smart 20 by 88.4% in our overall performance rating.
Launch price difference: $252. Infinix Smart 20 was $252 cheaper at launch.
performance
In the "performance" category, the Redmi K90 significantly outperforms the Infinix Smart 20 (92/100 vs 30/100).
display
In the "display" category, the Redmi K90 notably outperforms the Infinix Smart 20 (82/100 vs 55/100).
camera
In the "camera" category, the Redmi K90 significantly outperforms the Infinix Smart 20 (58/100 vs 10/100).
battery
In the "battery" category, the Redmi K90 notably outperforms the Infinix Smart 20 (72/100 vs 48/100).
portability
In the "portability" category, the Infinix Smart 20 is a bit better (68/100 vs 55/100).
Which is better: the Infinix Smart 20 or the Redmi K90?
The Redmi K90 significantly outperforms the Infinix Smart 20 by 43 points (76/100 vs 33/100).
What is the rating of the Infinix Smart 20 and the Redmi K90?
The Infinix Smart 20 has a MobileRank rating of 33/100, the Redmi K90 — 76/100.
Which has the better camera: the Infinix Smart 20 or the Redmi K90?
The Redmi K90 leads on camera score (58/100 vs 10/100).
Which is more powerful: the Infinix Smart 20 or the Redmi K90?
The Redmi K90 leads on performance (92/100 vs 30/100).
Should you choose the Infinix Smart 20 over the Redmi K90?
The Infinix Smart 20 is a better fit for everyday use. The Redmi K90 is a better fit for gamers and power users, budget-conscious buyers.