Poco X4 NFC vs Redmi K90 Ultra
The Poco X4 NFC (2022) runs on the MediaTek Dimensity 920, 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 54/100 (a 19-point difference). Key differences: the Redmi K90 Ultra has the bigger battery (8550 mAh vs 5160); the main camera is 108 MP vs 50 MP; the Redmi K90 Ultra is faster in AnTuTu (3,233,695 vs 750,481); the Poco X4 NFC is noticeably lighter (207g vs 227g).
Profile comparison
Category scores
Poco X4 NFC
Redmi K90 Ultra
What makes Poco X4 NFC better?
- Better main camera: 108MP vs 50MP
- Lighter: 207g vs 227g
- Better camera (44/100 vs 37/100)
- Better portability (52/100 vs 40/100)
What makes Redmi K90 Ultra better?
- Higher AnTuTu: 3233695 vs 750481
- Better Geekbench Single: 3013 vs 936
- Better Geekbench Multi: 9287 vs 2318
- Bigger battery: 8550 vs 5160 mAh
- Faster charging: 100W vs 67W
- Higher refresh rate: 165Hz vs 120Hz
- Higher performance (92/100 vs 51/100)
- Longer battery life (78/100 vs 56/100)
- Better display (94/100 vs 79/100)
Comparison verdict
Comparing the Poco X4 NFC vs the Redmi K90 Ultra, the Redmi K90 Ultra scores 19 points higher (73/100 vs 54/100). In the "performance" category, the Redmi K90 Ultra leads (92/100 vs 51/100). In the "battery" category, the Redmi K90 Ultra leads (78/100 vs 56/100). In the "performance" category, the Redmi K90 Ultra significantly outperforms the Poco X4 NFC (92/100 vs 51/100). In the "display" category, the Redmi K90 Ultra notably outperforms the Poco X4 NFC (94/100 vs 79/100). In the "camera" category, the Poco X4 NFC is a bit better (44/100 vs 37/100). In the "battery" category, the Redmi K90 Ultra notably outperforms the Poco X4 NFC (78/100 vs 56/100). In the "portability" category, the Poco X4 NFC is a bit better (52/100 vs 40/100).
Specs comparison
| Specification | Poco X4 NFC | Redmi K90 Ultra | |
|---|---|---|---|
| Processor | MediaTek Dimensity 920 | Qualcomm Snapdragon 8 Elite | |
| AnTuTu | 750481 | 3233695 | |
| Geekbench Single | 936 | 3013 | |
| Geekbench Multi | 2318 | 9287 | |
| Display | 6.7" Super AMOLED | 6.8" AMOLED | |
| Resolution | 1080x2400 | 1280x2772 | |
| Refresh rate | 120 Hz | 165 Hz | |
| Battery | 5160 mAh | 8550 mAh | |
| Charging | 67W | 100W | |
| Main camera | 108 MP | 50 MP | |
| Ultrawide | 8 MP | 8 MP | |
| Front camera | 16 MP | 20 MP | |
| RAM | 6GB / 8GB | 12GB / 16GB | |
| Storage | 128GB / 256GB | 256GB / 512GB | |
| OS | Android 11, MIUI 12.5 | Android 16 | |
| Brightness (peak) | 1200 nits | 3500 nits | |
| NFC | yes | yes | |
| Protection | — | IP68/IP69 | |
| Dimensions | 163.7×76.2×8.3 mm | 162.9×77.9×8.2 mm | |
| Weight | 207 g | 227 g | |
| Launch price | — | $420 |
Camera comparison
Poco X4 NFC
- Main: 108MP f/1.9
- Ultrawide: 8MP
- Front: 16MP
Redmi K90 Ultra
- Main: 50MP f/1.7
- Ultrawide: 8MP
- Front: 20MP
Display comparison
Poco X4 NFC
- 6.7" Super AMOLED
- Resolution: 1080x2400
- Refresh rate: 120 Hz
Redmi K90 Ultra
- 6.8" AMOLED
- Resolution: 1280x2772
- Refresh rate: 165 Hz
Battery and charging
Poco X4 NFC
- 5160 mAh
- Wired: 67W
- No wireless charging
Redmi K90 Ultra
- 8550 mAh
- Wired: 100W
- No wireless charging
Overall performance score
We compared Poco X4 NFC and Redmi K90 Ultra, covering their specs and all relevant benchmarks.
Redmi K90 Ultra leads Poco X4 NFC by 76.8% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Poco X4 NFC
Price unknownDetailed category analysis
performance
In the "performance" category, the Redmi K90 Ultra significantly outperforms the Poco X4 NFC (92/100 vs 51/100).
display
In the "display" category, the Redmi K90 Ultra notably outperforms the Poco X4 NFC (94/100 vs 79/100).
camera
In the "camera" category, the Poco X4 NFC is a bit better (44/100 vs 37/100).
battery
In the "battery" category, the Redmi K90 Ultra notably outperforms the Poco X4 NFC (78/100 vs 56/100).
portability
In the "portability" category, the Poco X4 NFC is a bit better (52/100 vs 40/100).
Frequently asked questions
Which is better: the Poco X4 NFC or the Redmi K90 Ultra?
The Redmi K90 Ultra is noticeably better than the Poco X4 NFC — the overall rating gap is 19 points.
What is the rating of the Poco X4 NFC and the Redmi K90 Ultra?
The Poco X4 NFC has a MobileRank rating of 54/100, the Redmi K90 Ultra — 73/100.
Which has the better camera: the Poco X4 NFC or the Redmi K90 Ultra?
The Poco X4 NFC leads on camera score (44/100 vs 37/100).
Which is more powerful: the Poco X4 NFC or the Redmi K90 Ultra?
The Redmi K90 Ultra leads on performance (92/100 vs 51/100).
Should you choose the Poco X4 NFC over the Redmi K90 Ultra?
The Redmi K90 Ultra is a better fit for gamers and power users, those who care about battery life.