Realme 12 4G vs Redmi K90 Ultra
The Realme 12 4G (2024) runs on the Qualcomm Snapdragon 685, while the Redmi K90 Ultra (2026) runs on the Qualcomm Snapdragon 8 Elite. By overall MobileRank rating, the Redmi K90 Ultra leads — 73/100 vs 45/100 (a 28-point difference). Key differences: the Redmi K90 Ultra has the bigger battery (8550 mAh vs 5000); the Redmi K90 Ultra is faster in AnTuTu (3,233,695 vs 476,175); the Realme 12 4G is noticeably lighter (187g vs 227g).
Profile comparison
Category scores
Realme 12 4G
Redmi K90 Ultra
What makes Realme 12 4G better?
- Lighter: 187g vs 227g
- Better portability (68/100 vs 40/100)
What makes Redmi K90 Ultra better?
- Higher AnTuTu: 3233695 vs 476175
- Better Geekbench Single: 3013 vs 466
- Better Geekbench Multi: 9287 vs 1396
- Bigger battery: 8550 vs 5000 mAh
- Faster charging: 100W vs 67W
- Higher refresh rate: 165Hz vs 120Hz
- Higher performance (92/100 vs 34/100)
- Better camera (37/100 vs 32/100)
- Longer battery life (78/100 vs 53/100)
- Better display (94/100 vs 79/100)
Comparison verdict
Comparing the Realme 12 4G vs the Redmi K90 Ultra, the Redmi K90 Ultra scores 28 points higher (73/100 vs 45/100). In the "performance" category, the Redmi K90 Ultra leads (92/100 vs 34/100). In the "battery" category, the Redmi K90 Ultra leads (78/100 vs 53/100). In the "performance" category, the Redmi K90 Ultra significantly outperforms the Realme 12 4G (92/100 vs 34/100). In the "display" category, the Redmi K90 Ultra notably outperforms the Realme 12 4G (94/100 vs 79/100). In the "camera" category, the Redmi K90 Ultra is a bit better (37/100 vs 32/100). In the "battery" category, the Redmi K90 Ultra notably outperforms the Realme 12 4G (78/100 vs 53/100). In the "portability" category, the Realme 12 4G notably outperforms the Redmi K90 Ultra (68/100 vs 40/100).
Specs comparison
| Specification | Realme 12 4G | Redmi K90 Ultra | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 685 | Qualcomm Snapdragon 8 Elite | |
| AnTuTu | 476175 | 3233695 | |
| Geekbench Single | 466 | 3013 | |
| Geekbench Multi | 1396 | 9287 | |
| Display | 6.7" AMOLED | 6.8" AMOLED | |
| Resolution | 1080x2400 | 1280x2772 | |
| Refresh rate | 120 Hz | 165 Hz | |
| Battery | 5000 mAh | 8550 mAh | |
| Charging | 67W | 100W | |
| Main camera | 50 MP | 50 MP | |
| Ultrawide | 0 MP | 8 MP | |
| Front camera | 16 MP | 20 MP | |
| RAM | 8GB | 12GB / 16GB | |
| Storage | 128GB / 256GB / 512GB | 256GB / 512GB | |
| OS | Android 14, Realme UI 5.0 | Android 16 | |
| Brightness (peak) | 2000 nits | 3500 nits | |
| NFC | yes | yes | |
| Protection | IP54 | IP68/IP69 | |
| Dimensions | 163.0×75.5×7.9 mm | 162.9×77.9×8.2 mm | |
| Weight | 187 g | 227 g | |
| Launch price | — | $420 |
Camera comparison
Realme 12 4G
- Main: 50MP f/1.9
- Front: 16MP
Redmi K90 Ultra
- Main: 50MP f/1.7
- Ultrawide: 8MP
- Front: 20MP
Display comparison
Realme 12 4G
- 6.7" AMOLED
- Resolution: 1080x2400
- Refresh rate: 120 Hz
Redmi K90 Ultra
- 6.8" AMOLED
- Resolution: 1280x2772
- Refresh rate: 165 Hz
Battery and charging
Realme 12 4G
- 5000 mAh
- Wired: 67W
- No wireless charging
Redmi K90 Ultra
- 8550 mAh
- Wired: 100W
- No wireless charging
Overall performance score
We compared Realme 12 4G and Redmi K90 Ultra, covering their specs and all relevant benchmarks.
Redmi K90 Ultra leads Realme 12 4G by 85.3% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Realme 12 4G
Price unknownDetailed category analysis
performance
In the "performance" category, the Redmi K90 Ultra significantly outperforms the Realme 12 4G (92/100 vs 34/100).
display
In the "display" category, the Redmi K90 Ultra notably outperforms the Realme 12 4G (94/100 vs 79/100).
camera
In the "camera" category, the Redmi K90 Ultra is a bit better (37/100 vs 32/100).
battery
In the "battery" category, the Redmi K90 Ultra notably outperforms the Realme 12 4G (78/100 vs 53/100).
portability
In the "portability" category, the Realme 12 4G notably outperforms the Redmi K90 Ultra (68/100 vs 40/100).
Frequently asked questions
Which is better: the Realme 12 4G or the Redmi K90 Ultra?
The Redmi K90 Ultra significantly outperforms the Realme 12 4G by 28 points (73/100 vs 45/100).
What is the rating of the Realme 12 4G and the Redmi K90 Ultra?
The Realme 12 4G has a MobileRank rating of 45/100, the Redmi K90 Ultra — 73/100.
Which has the better camera: the Realme 12 4G or the Redmi K90 Ultra?
The Redmi K90 Ultra leads on camera score (37/100 vs 32/100).
Which is more powerful: the Realme 12 4G or the Redmi K90 Ultra?
The Redmi K90 Ultra leads on performance (92/100 vs 34/100).
Should you choose the Realme 12 4G over the Redmi K90 Ultra?
The Redmi K90 Ultra is a better fit for gamers and power users, those who care about battery life.