Redmi K90 Pro Max vs Samsung Galaxy A40

The Redmi K90 Pro Max (2025) runs on the Qualcomm Snapdragon 8 Elite Gen 5, while the Samsung Galaxy A40 (2019) runs on the Samsung Exynos 7904; estimated prices are $561 and $250. By overall MobileRank rating, the Redmi K90 Pro Max leads — 84/100 vs 11/100 (a 73-point difference). Key differences: the Redmi K90 Pro Max has the bigger battery (7560 mAh vs 3100); the main camera is 50 MP vs 16 MP; the Redmi K90 Pro Max is faster in AnTuTu (4,119,955 vs 241,600); the Samsung Galaxy A40 is noticeably lighter (140g vs 210g).

The Redmi K90 Pro Max significantly outperforms the Samsung Galaxy A40 by 73 points (84/100 vs 11/100).
Profile comparison
Category scores
Redmi K90 Pro Max
Performance 94
Display 100
Camera 74
Battery 82
Design 37
Value for money 71
Samsung Galaxy A40
Performance 0
Display 0
Camera 8
Battery 0
Design 100
Value for money 93
What makes Redmi K90 Pro Max better?
  • Higher AnTuTu: 4119955 vs 241600
  • Better Geekbench Single: 3640 vs 330
  • Better Geekbench Multi: 11033 vs 975
  • Bigger battery: 7560 vs 3100 mAh
  • Better main camera: 50MP vs 16MP
  • Higher refresh rate: 120Hz vs 60Hz

  • Higher performance (94/100 vs 0/100)
  • Better camera (74/100 vs 8/100)
  • Longer battery life (82/100 vs 0/100)
  • Better display (100/100 vs 0/100)
What makes Samsung Galaxy A40 better?
  • Lighter: 140g vs 210g
  • Cheaper: $250 vs $561

  • Better design/ergonomics (100/100 vs 37/100)
  • Better value for money (93/100 vs 71/100)
Comparison verdict

Comparing the Redmi K90 Pro Max vs the Samsung Galaxy A40, the Redmi K90 Pro Max scores 73 points higher (84/100 vs 11/100). In the "performance" category, the Redmi K90 Pro Max leads (94/100 vs 0/100). In the "camera" category, the Redmi K90 Pro Max leads (74/100 vs 8/100). In the "battery" category, the Redmi K90 Pro Max leads (82/100 vs 0/100). In the "value for money" category, the Samsung Galaxy A40 leads (93/100 vs 71/100). In the "performance" category, the Redmi K90 Pro Max significantly outperforms the Samsung Galaxy A40 (94/100 vs 0/100). In the "display" category, the Redmi K90 Pro Max significantly outperforms the Samsung Galaxy A40 (100/100 vs 0/100). In the "camera" category, the Redmi K90 Pro Max significantly outperforms the Samsung Galaxy A40 (74/100 vs 8/100). In the "battery" category, the Redmi K90 Pro Max significantly outperforms the Samsung Galaxy A40 (82/100 vs 0/100). In the "design" category, the Samsung Galaxy A40 significantly outperforms the Redmi K90 Pro Max (100/100 vs 37/100). In the "value for money" category, the Samsung Galaxy A40 notably outperforms the Redmi K90 Pro Max (93/100 vs 71/100).

Redmi K90 Pro Max: The Redmi K90 Pro Max is a better fit for gamers and power users, those who care about battery life.
Samsung Galaxy A40: The Samsung Galaxy A40 is a better fit for budget-conscious buyers.
Specs comparison
Specification Redmi K90 Pro Max Samsung Galaxy A40
Processor Qualcomm Snapdragon 8 Elite Gen 5 Samsung Exynos 7904
AnTuTu 4119955 241600
Geekbench Single 3640 330
Geekbench Multi 11033 975
Display 6.9" OLED 5.9" AMOLED
Resolution 2608x1200
Refresh rate 120 Hz 60 Hz
Battery 7560 mAh 3100 mAh
Charging 100W
Wireless charging 50W 0W
Main camera 50 MP 16 MP
Ultrawide 50 MP 0 MP
Telephoto 50 MP 0 MP
Front camera 32 MP 25 MP
RAM 16GB 4GB
Storage 256GB / 512GB / 1TB 64GB
OS Android 16
Brightness (peak) 3500 nits
NFC yes yes
Protection IP68
Dimensions 163.3×77.8×7.9 mm 144.4×69.2×7.9 mm
Weight 210 g 140 g
Price $561 $250
Camera comparison
Redmi K90 Pro Max
  • Main: 50MP f/f/1.88
  • Ultrawide: 50MP
  • Telephoto: 50MP
  • Front: 32MP
74
camera
Samsung Galaxy A40
  • Main: 16MP
  • Front: 25MP
8
camera
Display comparison
Redmi K90 Pro Max
  • 6.9" OLED
  • Resolution: 2608x1200
  • Refresh rate: 120 Hz
100
display
Samsung Galaxy A40
  • 5.9" AMOLED
  • Refresh rate: 60 Hz
0
display
Battery and charging
Redmi K90 Pro Max
  • 7560 mAh
  • Wired: 100W
  • Wireless: 50W
82
battery
Samsung Galaxy A40
  • 3100 mAh
  • No wireless charging
0
battery
Overall performance score

We compared Redmi K90 Pro Max and Samsung Galaxy A40, covering their specs and all relevant benchmarks.

Redmi K90 Pro Max Qualcomm Snapdragon 8 Elite Gen 5
84/100
4119955 AnTuTu
Samsung Galaxy A40 Samsung Exynos 7904
11/100 -1605.3%
241600 AnTuTu

Redmi K90 Pro Max leads Samsung Galaxy A40 by 1605.3% in our overall performance rating.

Benchmarks
Price and availability
Redmi K90 Pro Max
$561
Samsung Galaxy A40
$250

Price difference: $311. Samsung Galaxy A40 is cheaper by $311.

Detailed category analysis
performance

In the "performance" category, the Redmi K90 Pro Max significantly outperforms the Samsung Galaxy A40 (94/100 vs 0/100).

display

In the "display" category, the Redmi K90 Pro Max significantly outperforms the Samsung Galaxy A40 (100/100 vs 0/100).

camera

In the "camera" category, the Redmi K90 Pro Max significantly outperforms the Samsung Galaxy A40 (74/100 vs 8/100).

battery

In the "battery" category, the Redmi K90 Pro Max significantly outperforms the Samsung Galaxy A40 (82/100 vs 0/100).

design

In the "design" category, the Samsung Galaxy A40 significantly outperforms the Redmi K90 Pro Max (100/100 vs 37/100).

value for money

In the "value for money" category, the Samsung Galaxy A40 notably outperforms the Redmi K90 Pro Max (93/100 vs 71/100).

Frequently asked questions
Which is better: the Redmi K90 Pro Max or the Samsung Galaxy A40?

The Redmi K90 Pro Max significantly outperforms the Samsung Galaxy A40 by 73 points (84/100 vs 11/100).

What is the rating of the Redmi K90 Pro Max and the Samsung Galaxy A40?

The Redmi K90 Pro Max has a MobileRank rating of 84/100, the Samsung Galaxy A40 — 11/100.

Which has the better camera: the Redmi K90 Pro Max or the Samsung Galaxy A40?

The Redmi K90 Pro Max leads on camera score (74/100 vs 8/100).

Which is more powerful: the Redmi K90 Pro Max or the Samsung Galaxy A40?

The Redmi K90 Pro Max leads on performance (94/100 vs 0/100).

Should you choose the Redmi K90 Pro Max over the Samsung Galaxy A40?

The Redmi K90 Pro Max is a better fit for gamers and power users, those who care about battery life. The Samsung Galaxy A40 is a better fit for budget-conscious buyers.