Redmi K90 Max vs Samsung Galaxy A40
The Redmi K90 Max (2026) runs on the MediaTek Dimensity 9500, while the Samsung Galaxy A40 (2019) runs on the Samsung Exynos 7904; launch prices were $504 and $250. By overall MobileRank rating, the Redmi K90 Max leads — 75/100 vs 25/100 (a 50-point difference). Key differences: the Redmi K90 Max has the bigger battery (8550 mAh vs 3100); the main camera is 50 MP vs 16 MP; the Redmi K90 Max is faster in AnTuTu (3,760,662 vs 257,901); the Samsung Galaxy A40 is noticeably lighter (140g vs 227g).
Profile comparison
Category scores
Redmi K90 Max
Samsung Galaxy A40
What makes Redmi K90 Max better?
- Higher AnTuTu: 3760662 vs 257901
- Better Geekbench Single: 3293 vs 330
- Better Geekbench Multi: 10243 vs 975
- Bigger battery: 8550 vs 3100 mAh
- Better main camera: 50MP vs 16MP
- Higher refresh rate: 165Hz vs 60Hz
- Higher performance (96/100 vs 19/100)
- Better camera (37/100 vs 17/100)
- Longer battery life (78/100 vs 12/100)
- Better display (94/100 vs 51/100)
What makes Samsung Galaxy A40 better?
- Lighter: 140g vs 227g
- Cheaper at launch: $250 vs $504
- Better portability (84/100 vs 41/100)
Comparison verdict
Comparing the Redmi K90 Max vs the Samsung Galaxy A40, the Redmi K90 Max scores 50 points higher (75/100 vs 25/100). In the "performance" category, the Redmi K90 Max leads (96/100 vs 19/100). In the "camera" category, the Redmi K90 Max leads (37/100 vs 17/100). In the "battery" category, the Redmi K90 Max leads (78/100 vs 12/100). Value score: Redmi K90 Max — 72/100, Samsung Galaxy A40 — 0/100; 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 Max significantly outperforms the Samsung Galaxy A40 (96/100 vs 19/100). In the "display" category, the Redmi K90 Max significantly outperforms the Samsung Galaxy A40 (94/100 vs 51/100). In the "camera" category, the Redmi K90 Max notably outperforms the Samsung Galaxy A40 (37/100 vs 17/100). In the "battery" category, the Redmi K90 Max significantly outperforms the Samsung Galaxy A40 (78/100 vs 12/100). In the "portability" category, the Samsung Galaxy A40 significantly outperforms the Redmi K90 Max (84/100 vs 41/100).
Specs comparison
| Specification | Redmi K90 Max | Samsung Galaxy A40 | |
|---|---|---|---|
| Processor | MediaTek Dimensity 9500 | Samsung Exynos 7904 | |
| AnTuTu | 3760662 | 257901 | |
| Geekbench Single | 3293 | 330 | |
| Geekbench Multi | 10243 | 975 | |
| Display | 6.8" AMOLED | 5.9" AMOLED | |
| Resolution | 2772x1280 | — | |
| Refresh rate | 165 Hz | 60 Hz | |
| Battery | 8550 mAh | 3100 mAh | |
| Charging | 100W | — | |
| Main camera | 50 MP | 16 MP | |
| Ultrawide | 8 MP | 0 MP | |
| Front camera | 20 MP | 25 MP | |
| RAM | 12GB / 16GB | 4GB | |
| Storage | 256GB / 512GB / 1TB | 64GB | |
| OS | Android 16 | — | |
| Brightness (peak) | 3500 nits | — | |
| NFC | yes | yes | |
| Protection | IP66 | — | |
| Dimensions | 162.9×77.9×8.1 mm | 144.4×69.2×7.9 mm | |
| Weight | 227 g | 140 g | |
| Launch price | $504 | $250 |
Camera comparison
Redmi K90 Max
- Main: 50MP f/1.68
- Ultrawide: 8MP
- Front: 20MP
Samsung Galaxy A40
- Main: 16MP
- Front: 25MP
Display comparison
Redmi K90 Max
- 6.8" AMOLED
- Resolution: 2772x1280
- Refresh rate: 165 Hz
Samsung Galaxy A40
- 5.9" AMOLED
- Refresh rate: 60 Hz
Battery and charging
Redmi K90 Max
- 8550 mAh
- Wired: 100W
- No wireless charging
Samsung Galaxy A40
- 3100 mAh
- No wireless charging
Overall performance score
We compared Redmi K90 Max and Samsung Galaxy A40, covering their specs and all relevant benchmarks.
Redmi K90 Max leads Samsung Galaxy A40 by 1358.2% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Launch price difference: $254. Samsung Galaxy A40 was $254 cheaper at launch.
Detailed category analysis
performance
In the "performance" category, the Redmi K90 Max significantly outperforms the Samsung Galaxy A40 (96/100 vs 19/100).
display
In the "display" category, the Redmi K90 Max significantly outperforms the Samsung Galaxy A40 (94/100 vs 51/100).
camera
In the "camera" category, the Redmi K90 Max notably outperforms the Samsung Galaxy A40 (37/100 vs 17/100).
battery
In the "battery" category, the Redmi K90 Max significantly outperforms the Samsung Galaxy A40 (78/100 vs 12/100).
portability
In the "portability" category, the Samsung Galaxy A40 significantly outperforms the Redmi K90 Max (84/100 vs 41/100).
Frequently asked questions
Which is better: the Redmi K90 Max or the Samsung Galaxy A40?
The Redmi K90 Max significantly outperforms the Samsung Galaxy A40 by 50 points (75/100 vs 25/100).
What is the rating of the Redmi K90 Max and the Samsung Galaxy A40?
The Redmi K90 Max has a MobileRank rating of 75/100, the Samsung Galaxy A40 — 25/100.
Which has the better camera: the Redmi K90 Max or the Samsung Galaxy A40?
The Redmi K90 Max leads on camera score (37/100 vs 17/100).
Which is more powerful: the Redmi K90 Max or the Samsung Galaxy A40?
The Redmi K90 Max leads on performance (96/100 vs 19/100).
Should you choose the Redmi K90 Max over the Samsung Galaxy A40?
The Redmi K90 Max is a better fit for gamers and power users, those who care about battery life.