Redmi K90 vs Samsung Galaxy A03 Core
The Redmi K90 (2025) runs on the Qualcomm Snapdragon 8 Elite, while the Samsung Galaxy A03 Core (2022) runs on the Unisoc SC9863A; launch prices were $401 and $100. By overall MobileRank rating, the Redmi K90 leads — 76/100 vs 24/100 (a 52-point difference). Key differences: the Redmi K90 has the bigger battery (7100 mAh vs 5000); the main camera is 50 MP vs 8 MP; the Redmi K90 is faster in AnTuTu (3,077,585 vs 153,667); the Redmi K90 has NFC for contactless payments, the Samsung Galaxy A03 Core doesn't; the Redmi K90 is thinner (8.0mm vs 9.1mm).
Profile comparison
Category scores
Redmi K90
Samsung Galaxy A03 Core
What makes Redmi K90 better?
- Higher AnTuTu: 3077585 vs 153667
- Better Geekbench Single: 3013 vs 205
- Better Geekbench Multi: 9287 vs 846
- Bigger battery: 7100 vs 5000 mAh
- Better main camera: 50MP vs 8MP
- Higher refresh rate: 120Hz vs 60Hz
- Higher performance (91/100 vs 9/100)
- Better camera (58/100 vs 10/100)
- Longer battery life (72/100 vs 66/100)
- Better display (82/100 vs 32/100)
- Better portability (55/100 vs 50/100)
What makes Samsung Galaxy A03 Core better?
- Lighter: 196g vs 206g
- Cheaper at launch: $100 vs $401
- Overall rating 24/100
Comparison verdict
Comparing the Redmi K90 vs the Samsung Galaxy A03 Core, the Redmi K90 scores 52 points higher (76/100 vs 24/100). In the "performance" category, the Redmi K90 leads (91/100 vs 9/100). In the "camera" category, the Redmi K90 leads (58/100 vs 10/100). Value score: Redmi K90 — 80/100, Samsung Galaxy A03 Core — 36/100; 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 significantly outperforms the Samsung Galaxy A03 Core (91/100 vs 9/100). In the "display" category, the Redmi K90 significantly outperforms the Samsung Galaxy A03 Core (82/100 vs 32/100). In the "camera" category, the Redmi K90 significantly outperforms the Samsung Galaxy A03 Core (58/100 vs 10/100). In the "battery" category, the Redmi K90 is a bit better (72/100 vs 66/100). In the "portability" category, the Redmi K90 is a bit better (55/100 vs 50/100).
Specs comparison
| Specification | Redmi K90 | Samsung Galaxy A03 Core | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 8 Elite | Unisoc SC9863A | |
| AnTuTu | 3077585 | 153667 | |
| Geekbench Single | 3013 | 205 | |
| Geekbench Multi | 9287 | 846 | |
| Display | 6.6" AMOLED | 6.5" IPS LCD | |
| Resolution | 2510x1156 | — | |
| Refresh rate | 120 Hz | 60 Hz | |
| Battery | 7100 mAh | 5000 mAh | |
| Charging | 100W | — | |
| Main camera | 50 MP | 8 MP | |
| Ultrawide | 8 MP | 0 MP | |
| Telephoto | 50 MP | 0 MP | |
| Front camera | 20 MP | 5 MP | |
| RAM | 12GB / 16GB | 2GB | |
| Storage | 256GB / 512GB | 32GB | |
| OS | Android 16 | — | |
| Brightness (peak) | 3500 nits | — | |
| NFC | yes | no | |
| Protection | IP68 | — | |
| Dimensions | 157.5×75.3×8.0 mm | 164.2×75.9×9.1 mm | |
| Weight | 206 g | 196 g | |
| Launch price | $401 | $100 |
Camera comparison
Redmi K90
- Main: 50MP f/1.9
- Ultrawide: 8MP
- Telephoto: 50MP
- Front: 20MP
Samsung Galaxy A03 Core
- Main: 8MP
- Front: 5MP
Display comparison
Redmi K90
- 6.6" AMOLED
- Resolution: 2510x1156
- Refresh rate: 120 Hz
Samsung Galaxy A03 Core
- 6.5" IPS LCD
- Refresh rate: 60 Hz
Battery and charging
Redmi K90
- 7100 mAh
- Wired: 100W
- No wireless charging
Samsung Galaxy A03 Core
- 5000 mAh
- Wireless charging: no data
Overall performance score
We compared Redmi K90 and Samsung Galaxy A03 Core, covering their specs and all relevant benchmarks.
Redmi K90 leads Samsung Galaxy A03 Core by 1902.8% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Launch price difference: $301. Samsung Galaxy A03 Core was $301 cheaper at launch.
Detailed category analysis
performance
In the "performance" category, the Redmi K90 significantly outperforms the Samsung Galaxy A03 Core (91/100 vs 9/100).
display
In the "display" category, the Redmi K90 significantly outperforms the Samsung Galaxy A03 Core (82/100 vs 32/100).
camera
In the "camera" category, the Redmi K90 significantly outperforms the Samsung Galaxy A03 Core (58/100 vs 10/100).
battery
In the "battery" category, the Redmi K90 is a bit better (72/100 vs 66/100).
portability
In the "portability" category, the Redmi K90 is a bit better (55/100 vs 50/100).
Frequently asked questions
Which is better: the Redmi K90 or the Samsung Galaxy A03 Core?
The Redmi K90 significantly outperforms the Samsung Galaxy A03 Core by 52 points (76/100 vs 24/100).
What is the rating of the Redmi K90 and the Samsung Galaxy A03 Core?
The Redmi K90 has a MobileRank rating of 76/100, the Samsung Galaxy A03 Core — 24/100.
Which has the better camera: the Redmi K90 or the Samsung Galaxy A03 Core?
The Redmi K90 leads on camera score (58/100 vs 10/100).
Which is more powerful: the Redmi K90 or the Samsung Galaxy A03 Core?
The Redmi K90 leads on performance (91/100 vs 9/100).
Should you choose the Redmi K90 over the Samsung Galaxy A03 Core?
The Redmi K90 is a better fit for gamers and power users, budget-conscious buyers.