Infinix Smart 4 vs Redmi K90 Pro Max
The Infinix Smart 4 (2019) runs on the MediaTek Helio A22, while the Redmi K90 Pro Max (2025) runs on the Qualcomm Snapdragon 8 Elite Gen 5. By overall MobileRank rating, the Redmi K90 Pro Max leads — 86/100 vs 20/100 (a 66-point difference). Key differences: the Redmi K90 Pro Max has the bigger battery (7560 mAh vs 4000); the main camera is 8 MP vs 50 MP; the Redmi K90 Pro Max is faster in AnTuTu (4,119,955 vs 155,362); the Redmi K90 Pro Max has NFC for contactless payments, the Infinix Smart 4 doesn't; the Infinix Smart 4 is noticeably lighter (183g vs 210g).
Infinix Smart 4
Redmi K90 Pro Max
- Lighter: 183g vs 210g
- Better portability (66/100 vs 54/100)
- Higher AnTuTu: 4119955 vs 155362
- Better Geekbench Single: 3640 vs 300
- Better Geekbench Multi: 11033 vs 486
- Bigger battery: 7560 vs 4000 mAh
- Better main camera: 50MP vs 8MP
- Higher performance (98/100 vs 10/100)
- Better camera (78/100 vs 10/100)
- Longer battery life (89/100 vs 32/100)
- Better display (81/100 vs 38/100)
Comparing the Infinix Smart 4 vs the Redmi K90 Pro Max, the Redmi K90 Pro Max scores 66 points higher (86/100 vs 20/100). In the "performance" category, the Redmi K90 Pro Max leads (98/100 vs 10/100). In the "camera" category, the Redmi K90 Pro Max leads (78/100 vs 10/100). In the "battery" category, the Redmi K90 Pro Max leads (89/100 vs 32/100). In the "performance" category, the Redmi K90 Pro Max significantly outperforms the Infinix Smart 4 (98/100 vs 10/100). In the "display" category, the Redmi K90 Pro Max significantly outperforms the Infinix Smart 4 (81/100 vs 38/100). In the "camera" category, the Redmi K90 Pro Max significantly outperforms the Infinix Smart 4 (78/100 vs 10/100). In the "battery" category, the Redmi K90 Pro Max significantly outperforms the Infinix Smart 4 (89/100 vs 32/100). In the "portability" category, the Infinix Smart 4 is a bit better (66/100 vs 54/100).
| Specification | Infinix Smart 4 | Redmi K90 Pro Max | |
|---|---|---|---|
| Processor | MediaTek Helio A22 | Qualcomm Snapdragon 8 Elite Gen 5 | |
| AnTuTu | 155362 | 4119955 | |
| Geekbench Single | 300 | 3640 | |
| Geekbench Multi | 486 | 11033 | |
| Display | 6.6" IPS LCD | 6.9" OLED | |
| Resolution | 720x1600 | 2608x1200 | |
| Refresh rate | — | 120 Hz | |
| Battery | 4000 mAh | 7560 mAh | |
| Charging | — | 100W | |
| Wireless charging | — | 50W | |
| Main camera | 8 MP | 50 MP | |
| Ultrawide | 0 MP | 50 MP | |
| Telephoto | 0 MP | 50 MP | |
| Front camera | 5 MP | 32 MP | |
| RAM | 1GB | 16GB | |
| Storage | — | 256GB / 512GB / 1TB | |
| OS | Android 9.0 Pie (Go edition) | Android 16 | |
| Brightness (peak) | — | 3500 nits | |
| NFC | no | yes | |
| Protection | — | IP68 | |
| Dimensions | 167.0×76.0×8.3 mm | 163.3×77.8×7.9 mm | |
| Weight | 183 g | 210 g | |
| Launch price | — | $561 |
Infinix Smart 4
- Main: 8MP
- Front: 5MP
Redmi K90 Pro Max
- Main: 50MP f/f/1.88
- Ultrawide: 50MP
- Telephoto: 50MP
- Front: 32MP
Infinix Smart 4
- 6.6" IPS LCD
- Resolution: 720x1600
- Refresh rate: —
Redmi K90 Pro Max
- 6.9" OLED
- Resolution: 2608x1200
- Refresh rate: 120 Hz
Infinix Smart 4
- 4000 mAh
- Wireless charging: no data
Redmi K90 Pro Max
- 7560 mAh
- Wired: 100W
- Wireless: 50W
We compared Infinix Smart 4 and Redmi K90 Pro Max, covering their specs and all relevant benchmarks.
Redmi K90 Pro Max leads Infinix Smart 4 by 96.2% in our overall performance rating.
Infinix Smart 4
Price unknownperformance
In the "performance" category, the Redmi K90 Pro Max significantly outperforms the Infinix Smart 4 (98/100 vs 10/100).
display
In the "display" category, the Redmi K90 Pro Max significantly outperforms the Infinix Smart 4 (81/100 vs 38/100).
camera
In the "camera" category, the Redmi K90 Pro Max significantly outperforms the Infinix Smart 4 (78/100 vs 10/100).
battery
In the "battery" category, the Redmi K90 Pro Max significantly outperforms the Infinix Smart 4 (89/100 vs 32/100).
portability
In the "portability" category, the Infinix Smart 4 is a bit better (66/100 vs 54/100).
Which is better: the Infinix Smart 4 or the Redmi K90 Pro Max?
The Redmi K90 Pro Max significantly outperforms the Infinix Smart 4 by 66 points (86/100 vs 20/100).
What is the rating of the Infinix Smart 4 and the Redmi K90 Pro Max?
The Infinix Smart 4 has a MobileRank rating of 20/100, the Redmi K90 Pro Max — 86/100.
Which has the better camera: the Infinix Smart 4 or the Redmi K90 Pro Max?
The Redmi K90 Pro Max leads on camera score (78/100 vs 10/100).
Which is more powerful: the Infinix Smart 4 or the Redmi K90 Pro Max?
The Redmi K90 Pro Max leads on performance (98/100 vs 10/100).
Should you choose the Infinix Smart 4 over the Redmi K90 Pro Max?
The Infinix Smart 4 is a better fit for everyday use. The Redmi K90 Pro Max is a better fit for gamers and power users, those who care about battery life, budget-conscious buyers.