Redmi K90 Ultra vs Samsung Galaxy A04
The Redmi K90 Ultra (2026) runs on the Qualcomm Snapdragon 8 Elite, while the Samsung Galaxy A04 (2022) runs on the Unisoc; estimated prices are $420 and $135. By overall MobileRank rating, the Redmi K90 Ultra leads — 61/100 vs 19/100 (a 42-point difference). Key differences: the Redmi K90 Ultra has the bigger battery (8550 mAh vs 5000); the Redmi K90 Ultra has NFC for contactless payments, the Samsung Galaxy A04 doesn't; the Samsung Galaxy A04 is noticeably lighter (192g vs 227g).
Redmi K90 Ultra
Samsung Galaxy A04
- Bigger battery: 8550 vs 5000 mAh
- Higher performance (65/100 vs 0/100)
- Better camera (32/100 vs 24/100)
- Longer battery life (77/100 vs 36/100)
- Better display (100/100 vs 0/100)
- Lighter: 192g vs 227g
- Cheaper: $135 vs $420
- Better design/ergonomics (60/100 vs 16/100)
- Better value for money (100/100 vs 81/100)
Comparing the Redmi K90 Ultra vs the Samsung Galaxy A04, the Redmi K90 Ultra scores 42 points higher (61/100 vs 19/100). In the "performance" category, the Redmi K90 Ultra leads (65/100 vs 0/100). In the "battery" category, the Redmi K90 Ultra leads (77/100 vs 36/100). In the "value for money" category, the Samsung Galaxy A04 leads (100/100 vs 81/100). In the "performance" category, the Redmi K90 Ultra significantly outperforms the Samsung Galaxy A04 (65/100 vs 0/100). In the "display" category, the Redmi K90 Ultra significantly outperforms the Samsung Galaxy A04 (100/100 vs 0/100). In the "camera" category, the Redmi K90 Ultra is a bit better (32/100 vs 24/100). In the "battery" category, the Redmi K90 Ultra significantly outperforms the Samsung Galaxy A04 (77/100 vs 36/100). In the "design" category, the Samsung Galaxy A04 significantly outperforms the Redmi K90 Ultra (60/100 vs 16/100). In the "value for money" category, the Samsung Galaxy A04 notably outperforms the Redmi K90 Ultra (100/100 vs 81/100).
| Specification | Redmi K90 Ultra | Samsung Galaxy A04 | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 8 Elite | Unisoc | |
| AnTuTu | 2760000 | — | |
| Geekbench Single | 3050 | — | |
| Geekbench Multi | 9300 | — | |
| Display | 6.8" AMOLED | 6.5" PLS LCD | |
| Resolution | 1280x2772 | 720x1600 | |
| Refresh rate | 165 Hz | — | |
| Battery | 8550 mAh | 5000 mAh | |
| Charging | 100W | — | |
| Main camera | 50 MP | 50 MP | |
| Ultrawide | 8 MP | 0 MP | |
| Front camera | 20 MP | 5 MP | |
| RAM | 12GB / 16GB | 3GB / 4GB / 6GB / 8GB | |
| Storage | 256GB / 512GB | 32GB / 64GB / 128GB | |
| OS | Android 16 | Android 12, One UI Core 4.1 | |
| Brightness (peak) | 3500 nits | — | |
| NFC | yes | no | |
| Protection | IP68/IP69 | — | |
| Dimensions | 162.9×77.9×8.2 mm | 164.4×76.3×9.1 mm | |
| Weight | 227 g | 192 g | |
| Price | $420 | $135 |
Redmi K90 Ultra
- Main: 50MP f/1.7
- Ultrawide: 8MP
- Front: 20MP
Samsung Galaxy A04
- Main: 50MP f/f/1.8
- Front: 5MP
Redmi K90 Ultra
- 6.8" AMOLED
- Resolution: 1280x2772
- Refresh rate: 165 Hz
Samsung Galaxy A04
- 6.5" PLS LCD
- Resolution: 720x1600
- Refresh rate: —
Redmi K90 Ultra
- 8550 mAh
- Wired: 100W
- No wireless charging
Samsung Galaxy A04
- 5000 mAh
- No wireless charging
Price difference: $285. Samsung Galaxy A04 is cheaper by $285.
performance
In the "performance" category, the Redmi K90 Ultra significantly outperforms the Samsung Galaxy A04 (65/100 vs 0/100).
display
In the "display" category, the Redmi K90 Ultra significantly outperforms the Samsung Galaxy A04 (100/100 vs 0/100).
camera
In the "camera" category, the Redmi K90 Ultra is a bit better (32/100 vs 24/100).
battery
In the "battery" category, the Redmi K90 Ultra significantly outperforms the Samsung Galaxy A04 (77/100 vs 36/100).
design
In the "design" category, the Samsung Galaxy A04 significantly outperforms the Redmi K90 Ultra (60/100 vs 16/100).
value for money
In the "value for money" category, the Samsung Galaxy A04 notably outperforms the Redmi K90 Ultra (100/100 vs 81/100).
Which is better: the Redmi K90 Ultra or the Samsung Galaxy A04?
The Redmi K90 Ultra significantly outperforms the Samsung Galaxy A04 by 42 points (61/100 vs 19/100).
What is the rating of the Redmi K90 Ultra and the Samsung Galaxy A04?
The Redmi K90 Ultra has a MobileRank rating of 61/100, the Samsung Galaxy A04 — 19/100.
Which has the better camera: the Redmi K90 Ultra or the Samsung Galaxy A04?
The Redmi K90 Ultra leads on camera score (32/100 vs 24/100).
Which is more powerful: the Redmi K90 Ultra or the Samsung Galaxy A04?
The Redmi K90 Ultra leads on performance (65/100 vs 0/100).
Should you choose the Redmi K90 Ultra over the Samsung Galaxy A04?
The Redmi K90 Ultra is a better fit for active users, those who care about battery life, budget-conscious buyers. The Samsung Galaxy A04 is a better fit for budget-conscious buyers.