Redmi K90 Ultra vs Samsung Galaxy A52s
The Redmi K90 Ultra (2026) runs on the Qualcomm Snapdragon 8 Elite, while the Samsung Galaxy A52s (2021) runs on the Qualcomm Snapdragon 778G; launch prices were $420 and $449. By overall MobileRank rating, the Redmi K90 Ultra leads — 73/100 vs 55/100 (a 18-point difference). Key differences: the Redmi K90 Ultra has the bigger battery (8550 mAh vs 4500); the main camera is 50 MP vs 64 MP; the Redmi K90 Ultra is faster in AnTuTu (3,233,695 vs 783,606); the Samsung Galaxy A52s is noticeably lighter (189g vs 227g).
Profile comparison
Category scores
Redmi K90 Ultra
Samsung Galaxy A52s
What makes Redmi K90 Ultra better?
- Higher AnTuTu: 3233695 vs 783606
- Better Geekbench Single: 3013 vs 1017
- Better Geekbench Multi: 9287 vs 2943
- Bigger battery: 8550 vs 4500 mAh
- Faster charging: 100W vs 25W
- Higher refresh rate: 165Hz vs 120Hz
- Cheaper at launch: $420 vs $449
- Higher performance (92/100 vs 54/100)
- Longer battery life (78/100 vs 40/100)
- Better display (94/100 vs 80/100)
What makes Samsung Galaxy A52s better?
- Better main camera: 64MP vs 50MP
- Lighter: 189g vs 227g
- Better camera (50/100 vs 37/100)
- Better portability (70/100 vs 40/100)
Comparison verdict
Comparing the Redmi K90 Ultra vs the Samsung Galaxy A52s, the Redmi K90 Ultra scores 18 points higher (73/100 vs 55/100). In the "performance" category, the Redmi K90 Ultra leads (92/100 vs 54/100). In the "camera" category, the Samsung Galaxy A52s leads (50/100 vs 37/100). In the "battery" category, the Redmi K90 Ultra leads (78/100 vs 40/100). Value score: Redmi K90 Ultra — 72/100, Samsung Galaxy A52s — 34/100; 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 Ultra significantly outperforms the Samsung Galaxy A52s (92/100 vs 54/100). In the "display" category, the Redmi K90 Ultra is a bit better (94/100 vs 80/100). In the "camera" category, the Samsung Galaxy A52s is a bit better (50/100 vs 37/100). In the "battery" category, the Redmi K90 Ultra significantly outperforms the Samsung Galaxy A52s (78/100 vs 40/100). In the "portability" category, the Samsung Galaxy A52s significantly outperforms the Redmi K90 Ultra (70/100 vs 40/100).
Specs comparison
| Specification | Redmi K90 Ultra | Samsung Galaxy A52s | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 8 Elite | Qualcomm Snapdragon 778G | |
| AnTuTu | 3233695 | 783606 | |
| Geekbench Single | 3013 | 1017 | |
| Geekbench Multi | 9287 | 2943 | |
| Display | 6.8" AMOLED | 6.5" Super AMOLED | |
| Resolution | 1280x2772 | 2400x1080 | |
| Refresh rate | 165 Hz | 120 Hz | |
| Battery | 8550 mAh | 4500 mAh | |
| Charging | 100W | 25W | |
| Main camera | 50 MP | 64 MP | |
| Ultrawide | 8 MP | 12 MP | |
| Front camera | 20 MP | 32 MP | |
| RAM | 12GB / 16GB | 6GB / 8GB | |
| Storage | 256GB / 512GB | 128GB / 256GB | |
| OS | Android 16 | Android 11 | |
| Brightness (peak) | 3500 nits | — | |
| NFC | yes | — | |
| Protection | IP68/IP69 | — | |
| Dimensions | 162.9×77.9×8.2 mm | — | |
| Weight | 227 g | 189 g | |
| Launch price | $420 | $449 |
Camera comparison
Redmi K90 Ultra
- Main: 50MP f/1.7
- Ultrawide: 8MP
- Front: 20MP
Samsung Galaxy A52s
- Main: 64MP f/1.8
- Ultrawide: 12MP
- Front: 32MP
Display comparison
Redmi K90 Ultra
- 6.8" AMOLED
- Resolution: 1280x2772
- Refresh rate: 165 Hz
Samsung Galaxy A52s
- 6.5" Super AMOLED
- Resolution: 2400x1080
- Refresh rate: 120 Hz
Battery and charging
Redmi K90 Ultra
- 8550 mAh
- Wired: 100W
- No wireless charging
Samsung Galaxy A52s
- 4500 mAh
- Wired: 25W
- Wireless charging: no data
Overall performance score
We compared Redmi K90 Ultra and Samsung Galaxy A52s, covering their specs and all relevant benchmarks.
Redmi K90 Ultra leads Samsung Galaxy A52s by 312.7% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Launch price difference: $29. Redmi K90 Ultra was $29 cheaper at launch.
Detailed category analysis
performance
In the "performance" category, the Redmi K90 Ultra significantly outperforms the Samsung Galaxy A52s (92/100 vs 54/100).
display
In the "display" category, the Redmi K90 Ultra is a bit better (94/100 vs 80/100).
camera
In the "camera" category, the Samsung Galaxy A52s is a bit better (50/100 vs 37/100).
battery
In the "battery" category, the Redmi K90 Ultra significantly outperforms the Samsung Galaxy A52s (78/100 vs 40/100).
portability
In the "portability" category, the Samsung Galaxy A52s significantly outperforms the Redmi K90 Ultra (70/100 vs 40/100).
Frequently asked questions
Which is better: the Redmi K90 Ultra or the Samsung Galaxy A52s?
The Redmi K90 Ultra is noticeably better than the Samsung Galaxy A52s — the overall rating gap is 18 points.
What is the rating of the Redmi K90 Ultra and the Samsung Galaxy A52s?
The Redmi K90 Ultra has a MobileRank rating of 73/100, the Samsung Galaxy A52s — 55/100.
Which has the better camera: the Redmi K90 Ultra or the Samsung Galaxy A52s?
The Samsung Galaxy A52s leads on camera score (50/100 vs 37/100).
Which is more powerful: the Redmi K90 Ultra or the Samsung Galaxy A52s?
The Redmi K90 Ultra leads on performance (92/100 vs 54/100).
Should you choose the Redmi K90 Ultra over the Samsung Galaxy A52s?
The Redmi K90 Ultra is a better fit for gamers and power users, those who care about battery life.