Redmi 12 4G vs Redmi K90 Ultra
The Redmi 12 4G (2023) runs on the MediaTek Helio G88, 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 38/100 (a 35-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 365,001); the Redmi 12 4G is noticeably lighter (198g vs 227g).
Profile comparison
Category scores
Redmi 12 4G
Redmi K90 Ultra
What makes Redmi 12 4G better?
- Lighter: 198g vs 227g
- Better portability (58/100 vs 40/100)
What makes Redmi K90 Ultra better?
- Higher AnTuTu: 3233695 vs 365001
- Better Geekbench Single: 3013 vs 430
- Better Geekbench Multi: 9287 vs 1375
- Bigger battery: 8550 vs 5000 mAh
- Faster charging: 100W vs 18W
- Higher performance (92/100 vs 29/100)
- Better camera (37/100 vs 33/100)
- Longer battery life (78/100 vs 43/100)
- Better display (94/100 vs 57/100)
Comparison verdict
Comparing the Redmi 12 4G vs the Redmi K90 Ultra, the Redmi K90 Ultra scores 35 points higher (73/100 vs 38/100). In the "performance" category, the Redmi K90 Ultra leads (92/100 vs 29/100). In the "battery" category, the Redmi K90 Ultra leads (78/100 vs 43/100). In the "performance" category, the Redmi K90 Ultra significantly outperforms the Redmi 12 4G (92/100 vs 29/100). In the "display" category, the Redmi K90 Ultra significantly outperforms the Redmi 12 4G (94/100 vs 57/100). In the "camera" category, the Redmi K90 Ultra and the Redmi 12 4G are nearly equal (37/100 vs 33/100). In the "battery" category, the Redmi K90 Ultra significantly outperforms the Redmi 12 4G (78/100 vs 43/100). In the "portability" category, the Redmi 12 4G notably outperforms the Redmi K90 Ultra (58/100 vs 40/100).
Specs comparison
| Specification | Redmi 12 4G | Redmi K90 Ultra | |
|---|---|---|---|
| Processor | MediaTek Helio G88 | Qualcomm Snapdragon 8 Elite | |
| AnTuTu | 365001 | 3233695 | |
| Geekbench Single | 430 | 3013 | |
| Geekbench Multi | 1375 | 9287 | |
| Display | 6.8" IPS LCD | 6.8" AMOLED | |
| Resolution | 1080x2460 | 1280x2772 | |
| Refresh rate | — | 165 Hz | |
| Battery | 5000 mAh | 8550 mAh | |
| Charging | 18W | 100W | |
| Main camera | 50 MP | 50 MP | |
| Ultrawide | 8 MP | 8 MP | |
| Front camera | 8 MP | 20 MP | |
| RAM | 2GB / 4GB / 6GB / 8GB | 12GB / 16GB | |
| Storage | 128GB / 256GB | 256GB / 512GB | |
| OS | Android 13, MIUI 14 | Android 16 | |
| Brightness (peak) | — | 3500 nits | |
| NFC | yes | yes | |
| Protection | IP53 | IP68/IP69 | |
| Dimensions | 168.6×76.3×8.2 mm | 162.9×77.9×8.2 mm | |
| Weight | 198 g | 227 g | |
| Launch price | — | $420 |
Camera comparison
Redmi 12 4G
- Main: 50MP f/1.8
- Ultrawide: 8MP
- Front: 8MP
Redmi K90 Ultra
- Main: 50MP f/1.7
- Ultrawide: 8MP
- Front: 20MP
Display comparison
Redmi 12 4G
- 6.8" IPS LCD
- Resolution: 1080x2460
- Refresh rate: —
Redmi K90 Ultra
- 6.8" AMOLED
- Resolution: 1280x2772
- Refresh rate: 165 Hz
Battery and charging
Redmi 12 4G
- 5000 mAh
- Wired: 18W
- No wireless charging
Redmi K90 Ultra
- 8550 mAh
- Wired: 100W
- No wireless charging
Overall performance score
We compared Redmi 12 4G and Redmi K90 Ultra, covering their specs and all relevant benchmarks.
Redmi K90 Ultra leads Redmi 12 4G by 88.7% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Redmi 12 4G
Price unknownDetailed category analysis
performance
In the "performance" category, the Redmi K90 Ultra significantly outperforms the Redmi 12 4G (92/100 vs 29/100).
display
In the "display" category, the Redmi K90 Ultra significantly outperforms the Redmi 12 4G (94/100 vs 57/100).
camera
In the "camera" category, the Redmi K90 Ultra and the Redmi 12 4G are nearly equal (37/100 vs 33/100).
battery
In the "battery" category, the Redmi K90 Ultra significantly outperforms the Redmi 12 4G (78/100 vs 43/100).
portability
In the "portability" category, the Redmi 12 4G notably outperforms the Redmi K90 Ultra (58/100 vs 40/100).
Frequently asked questions
Which is better: the Redmi 12 4G or the Redmi K90 Ultra?
The Redmi K90 Ultra significantly outperforms the Redmi 12 4G by 35 points (73/100 vs 38/100).
What is the rating of the Redmi 12 4G and the Redmi K90 Ultra?
The Redmi 12 4G has a MobileRank rating of 38/100, the Redmi K90 Ultra — 73/100.
Which is more powerful: the Redmi 12 4G or the Redmi K90 Ultra?
The Redmi K90 Ultra leads on performance (92/100 vs 29/100).
Should you choose the Redmi 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.