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 — 61/100 vs 34/100 (a 27-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 Poco X4 NFC is noticeably lighter (207g vs 227g).
Poco X4 NFC
Redmi K90 Ultra
- Better main camera: 108MP vs 50MP
- Lighter: 207g vs 227g
- Better camera (41/100 vs 32/100)
- Better design/ergonomics (41/100 vs 16/100)
- Bigger battery: 8550 vs 5160 mAh
- Faster charging: 100W vs 67W
- Higher refresh rate: 165Hz vs 120Hz
- Higher performance (65/100 vs 0/100)
- Longer battery life (77/100 vs 51/100)
- Better value for money (81/100 vs 55/100)
Comparing the Poco X4 NFC vs the Redmi K90 Ultra, the Redmi K90 Ultra scores 27 points higher (61/100 vs 34/100). 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 51/100). In the "value for money" category, the Redmi K90 Ultra leads (81/100 vs 55/100). In the "performance" category, the Redmi K90 Ultra significantly outperforms the Poco X4 NFC (65/100 vs 0/100). In the "display" category, both devices are on the same level — 100/100. In the "camera" category, the Poco X4 NFC is a bit better (41/100 vs 32/100). In the "battery" category, the Redmi K90 Ultra notably outperforms the Poco X4 NFC (77/100 vs 51/100). In the "design" category, the Poco X4 NFC notably outperforms the Redmi K90 Ultra (41/100 vs 16/100). In the "value for money" category, the Redmi K90 Ultra notably outperforms the Poco X4 NFC (81/100 vs 55/100).
| Specification | Poco X4 NFC | Redmi K90 Ultra | |
|---|---|---|---|
| Processor | MediaTek Dimensity 920 | Qualcomm Snapdragon 8 Elite | |
| AnTuTu | — | 2760000 | |
| Geekbench Single | — | 3050 | |
| Geekbench Multi | — | 9300 | |
| 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 | |
| Price | — | $420 |
Poco X4 NFC
- Main: 108MP f/f/1.9
- Ultrawide: 8MP
- Front: 16MP
Redmi K90 Ultra
- Main: 50MP f/1.7
- Ultrawide: 8MP
- Front: 20MP
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
Poco X4 NFC
- 5160 mAh
- Wired: 67W
- No wireless charging
Redmi K90 Ultra
- 8550 mAh
- Wired: 100W
- No wireless charging
Poco X4 NFC
Price unknownperformance
In the "performance" category, the Redmi K90 Ultra significantly outperforms the Poco X4 NFC (65/100 vs 0/100).
display
In the "display" category, both devices are on the same level — 100/100.
camera
In the "camera" category, the Poco X4 NFC is a bit better (41/100 vs 32/100).
battery
In the "battery" category, the Redmi K90 Ultra notably outperforms the Poco X4 NFC (77/100 vs 51/100).
design
In the "design" category, the Poco X4 NFC notably outperforms the Redmi K90 Ultra (41/100 vs 16/100).
value for money
In the "value for money" category, the Redmi K90 Ultra notably outperforms the Poco X4 NFC (81/100 vs 55/100).
Which is better: the Poco X4 NFC or the Redmi K90 Ultra?
The Redmi K90 Ultra significantly outperforms the Poco X4 NFC by 27 points (61/100 vs 34/100).
What is the rating of the Poco X4 NFC and the Redmi K90 Ultra?
The Poco X4 NFC has a MobileRank rating of 34/100, the Redmi K90 Ultra — 61/100.
Which has the better camera: the Poco X4 NFC or the Redmi K90 Ultra?
The Poco X4 NFC leads on camera score (41/100 vs 32/100).
Which is more powerful: the Poco X4 NFC or the Redmi K90 Ultra?
The Redmi K90 Ultra leads on performance (65/100 vs 0/100).
Should you choose the Poco X4 NFC over the Redmi K90 Ultra?
The Poco X4 NFC is a better fit for everyday use. The Redmi K90 Ultra is a better fit for active users, those who care about battery life, budget-conscious buyers.