Redmi K80 Ultra vs Samsung Galaxy A40
The Redmi K80 Ultra (2025) runs on the MediaTek Dimensity 9400+, while the Samsung Galaxy A40 (2019) runs on the Samsung Exynos 7904; launch prices were $350 and $250. By overall MobileRank rating, the Redmi K80 Ultra leads — 73/100 vs 25/100 (a 48-point difference). Key differences: the Redmi K80 Ultra has the bigger battery (7410 mAh vs 3100); the main camera is 50 MP vs 16 MP; the Redmi K80 Ultra is faster in AnTuTu (2,874,956 vs 257,901); the Samsung Galaxy A40 is noticeably lighter (140g vs 219g).
Profile comparison
Category scores
Redmi K80 Ultra
Samsung Galaxy A40
What makes Redmi K80 Ultra better?
- Higher AnTuTu: 2874956 vs 257901
- Better Geekbench Single: 2729 vs 330
- Better Geekbench Multi: 8430 vs 975
- Bigger battery: 7410 vs 3100 mAh
- Better main camera: 50MP vs 16MP
- Higher refresh rate: 144Hz vs 60Hz
- Higher performance (89/100 vs 19/100)
- Better camera (37/100 vs 17/100)
- Longer battery life (86/100 vs 12/100)
- Better display (94/100 vs 51/100)
What makes Samsung Galaxy A40 better?
- Lighter: 140g vs 219g
- Cheaper at launch: $250 vs $350
- Better portability (84/100 vs 40/100)
Comparison verdict
Comparing the Redmi K80 Ultra vs the Samsung Galaxy A40, the Redmi K80 Ultra scores 48 points higher (73/100 vs 25/100). In the "performance" category, the Redmi K80 Ultra leads (89/100 vs 19/100). In the "camera" category, the Redmi K80 Ultra leads (37/100 vs 17/100). In the "battery" category, the Redmi K80 Ultra leads (86/100 vs 12/100). Value score: Redmi K80 Ultra — 80/100, 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 K80 Ultra significantly outperforms the Samsung Galaxy A40 (89/100 vs 19/100). In the "display" category, the Redmi K80 Ultra significantly outperforms the Samsung Galaxy A40 (94/100 vs 51/100). In the "camera" category, the Redmi K80 Ultra notably outperforms the Samsung Galaxy A40 (37/100 vs 17/100). In the "battery" category, the Redmi K80 Ultra significantly outperforms the Samsung Galaxy A40 (86/100 vs 12/100). In the "portability" category, the Samsung Galaxy A40 significantly outperforms the Redmi K80 Ultra (84/100 vs 40/100).
Specs comparison
| Specification | Redmi K80 Ultra | Samsung Galaxy A40 | |
|---|---|---|---|
| Processor | MediaTek Dimensity 9400+ | Samsung Exynos 7904 | |
| AnTuTu | 2874956 | 257901 | |
| Geekbench Single | 2729 | 330 | |
| Geekbench Multi | 8430 | 975 | |
| Display | 6.8" OLED | 5.9" AMOLED | |
| Resolution | 1280x2772 | — | |
| Refresh rate | 144 Hz | 60 Hz | |
| Battery | 7410 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 15 | — | |
| Brightness (peak) | 3200 nits | — | |
| NFC | yes | yes | |
| Protection | IP68 | — | |
| Dimensions | — | 144.4×69.2×7.9 mm | |
| Weight | 219 g | 140 g | |
| Launch price | $350 | $250 |
Camera comparison
Redmi K80 Ultra
- Main: 50MP f/1.9
- Ultrawide: 8MP
- Front: 20MP
Samsung Galaxy A40
- Main: 16MP
- Front: 25MP
Display comparison
Redmi K80 Ultra
- 6.8" OLED
- Resolution: 1280x2772
- Refresh rate: 144 Hz
Samsung Galaxy A40
- 5.9" AMOLED
- Refresh rate: 60 Hz
Battery and charging
Redmi K80 Ultra
- 7410 mAh
- Wired: 100W
- Wireless charging: no data
Samsung Galaxy A40
- 3100 mAh
- No wireless charging
Overall performance score
We compared Redmi K80 Ultra and Samsung Galaxy A40, covering their specs and all relevant benchmarks.
Redmi K80 Ultra leads Samsung Galaxy A40 by 1014.8% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Launch price difference: $100. Samsung Galaxy A40 was $100 cheaper at launch.
Detailed category analysis
performance
In the "performance" category, the Redmi K80 Ultra significantly outperforms the Samsung Galaxy A40 (89/100 vs 19/100).
display
In the "display" category, the Redmi K80 Ultra significantly outperforms the Samsung Galaxy A40 (94/100 vs 51/100).
camera
In the "camera" category, the Redmi K80 Ultra notably outperforms the Samsung Galaxy A40 (37/100 vs 17/100).
battery
In the "battery" category, the Redmi K80 Ultra significantly outperforms the Samsung Galaxy A40 (86/100 vs 12/100).
portability
In the "portability" category, the Samsung Galaxy A40 significantly outperforms the Redmi K80 Ultra (84/100 vs 40/100).
Frequently asked questions
Which is better: the Redmi K80 Ultra or the Samsung Galaxy A40?
The Redmi K80 Ultra significantly outperforms the Samsung Galaxy A40 by 48 points (73/100 vs 25/100).
What is the rating of the Redmi K80 Ultra and the Samsung Galaxy A40?
The Redmi K80 Ultra has a MobileRank rating of 73/100, the Samsung Galaxy A40 — 25/100.
Which has the better camera: the Redmi K80 Ultra or the Samsung Galaxy A40?
The Redmi K80 Ultra leads on camera score (37/100 vs 17/100).
Which is more powerful: the Redmi K80 Ultra or the Samsung Galaxy A40?
The Redmi K80 Ultra leads on performance (89/100 vs 19/100).
Should you choose the Redmi K80 Ultra over the Samsung Galaxy A40?
The Redmi K80 Ultra is a better fit for gamers and power users, those who care about battery life, budget-conscious buyers.