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 (3,077,585 vs 358,608).
Profile comparison
Category scores
Infinix Smart 20
Redmi K90
What makes Infinix Smart 20 better?
- Cheaper at launch: $149 vs $401
- Better portability (68/100 vs 55/100)
What makes Redmi K90 better?
- Higher AnTuTu: 3077585 vs 358608
- Better Geekbench Single: 3013 vs 432
- Better Geekbench Multi: 9287 vs 1416
- Bigger battery: 7100 vs 5200 mAh
- Faster charging: 100W vs 15W
- Better main camera: 50MP vs 8MP
- Higher performance (91/100 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)
Comparison verdict
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 (91/100 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 — 40/100, Redmi K90 — 80/100; 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 significantly outperforms the Infinix Smart 20 (91/100 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).
Specs comparison
| Specification | Infinix Smart 20 | Redmi K90 | |
|---|---|---|---|
| Processor | MediaTek Helio G81 Ultimate | Qualcomm Snapdragon 8 Elite | |
| AnTuTu | 358608 | 3077585 | |
| Geekbench Single | 432 | 3013 | |
| Geekbench Multi | 1416 | 9287 | |
| 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 |
Camera comparison
Infinix Smart 20
- Main: 8MP f/2.0
- Front: 8MP
Redmi K90
- Main: 50MP f/1.9
- Ultrawide: 8MP
- Telephoto: 50MP
- Front: 20MP
Display comparison
Infinix Smart 20
- 6.8" IPS LCD
- Resolution: 1576x720
- Refresh rate: 120 Hz
Redmi K90
- 6.6" AMOLED
- Resolution: 2510x1156
- Refresh rate: 120 Hz
Battery and charging
Infinix Smart 20
- 5200 mAh
- Wired: 15W
- No wireless charging
Redmi K90
- 7100 mAh
- Wired: 100W
- No wireless charging
Overall performance score
We compared Infinix Smart 20 and Redmi K90, covering their specs and all relevant benchmarks.
Redmi K90 leads Infinix Smart 20 by 88.3% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Launch price difference: $252. Infinix Smart 20 was $252 cheaper at launch.
Detailed category analysis
performance
In the "performance" category, the Redmi K90 significantly outperforms the Infinix Smart 20 (91/100 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).
Frequently asked questions
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 (91/100 vs 30/100).
Should you choose the Infinix Smart 20 over the Redmi K90?
The Redmi K90 is a better fit for gamers and power users, budget-conscious buyers.