Poco X3 Pro vs Redmi K90 Ultra
The Poco X3 Pro (2021) runs on the Qualcomm Snapdragon 860, while the Redmi K90 Ultra (2026) runs on the Qualcomm Snapdragon 8 Elite; launch prices were $250 and $420. By overall MobileRank rating, the Redmi K90 Ultra leads — 73/100 vs 49/100 (a 24-point difference). Key differences: the Redmi K90 Ultra has the bigger battery (8550 mAh vs 5160); the main camera is 48 MP vs 50 MP; the Redmi K90 Ultra is faster in AnTuTu (3,119,308 vs 795,343); the Redmi K90 Ultra is thinner (8.2mm vs 9.4mm).
Poco X3 Pro
Redmi K90 Ultra
- Lighter: 215g vs 227g
- Cheaper at launch: $250 vs $420
- Overall rating 49/100
- Higher AnTuTu: 3119308 vs 795343
- Better Geekbench Single: 3041 vs 1004
- Better Geekbench Multi: 9494 vs 2653
- Bigger battery: 8550 vs 5160 mAh
- Faster charging: 100W vs 33W
- Better main camera: 50MP vs 48MP
- Higher refresh rate: 165Hz vs 120Hz
- Higher performance (92/100 vs 53/100)
- Better camera (37/100 vs 36/100)
- Longer battery life (78/100 vs 49/100)
- Better display (94/100 vs 66/100)
- Better portability (40/100 vs 35/100)
Comparing the Poco X3 Pro vs the Redmi K90 Ultra, the Redmi K90 Ultra scores 24 points higher (73/100 vs 49/100). In the "performance" category, the Redmi K90 Ultra leads (92/100 vs 53/100). In the "battery" category, the Redmi K90 Ultra leads (78/100 vs 49/100). Value score: Poco X3 Pro — 50/100, Redmi K90 Ultra — 82/100; it is biased by price level, so it should not be compared directly between devices at different prices. In the "performance" category, the Redmi K90 Ultra significantly outperforms the Poco X3 Pro (92/100 vs 53/100). In the "display" category, the Redmi K90 Ultra notably outperforms the Poco X3 Pro (94/100 vs 66/100). In the "camera" category, the Redmi K90 Ultra and the Poco X3 Pro are nearly equal (37/100 vs 36/100). In the "battery" category, the Redmi K90 Ultra notably outperforms the Poco X3 Pro (78/100 vs 49/100). In the "portability" category, the Redmi K90 Ultra is a bit better (40/100 vs 35/100).
| Specification | Poco X3 Pro | Redmi K90 Ultra | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 860 | Qualcomm Snapdragon 8 Elite | |
| AnTuTu | 795343 | 3119308 | |
| Geekbench Single | 1004 | 3041 | |
| Geekbench Multi | 2653 | 9494 | |
| Display | 6.7" IPS LCD | 6.8" AMOLED | |
| Resolution | 2400x1080 | 1280x2772 | |
| Refresh rate | 120 Hz | 165 Hz | |
| Battery | 5160 mAh | 8550 mAh | |
| Charging | 33W | 100W | |
| Main camera | 48 MP | 50 MP | |
| Ultrawide | 8 MP | 8 MP | |
| Front camera | 20 MP | 20 MP | |
| RAM | 6GB / 8GB | 12GB / 16GB | |
| Storage | 128GB / 256GB | 256GB / 512GB | |
| OS | Android 11 | Android 16 | |
| Brightness (peak) | 450 nits | 3500 nits | |
| NFC | yes | yes | |
| Protection | IP53 | IP68/IP69 | |
| Dimensions | 165.3×76.8×9.4 mm | 162.9×77.9×8.2 mm | |
| Weight | 215 g | 227 g | |
| Launch price | $250 | $420 |
Poco X3 Pro
- Main: 48MP
- Ultrawide: 8MP
- Front: 20MP
Redmi K90 Ultra
- Main: 50MP f/1.7
- Ultrawide: 8MP
- Front: 20MP
Poco X3 Pro
- 6.7" IPS LCD
- Resolution: 2400x1080
- Refresh rate: 120 Hz
Redmi K90 Ultra
- 6.8" AMOLED
- Resolution: 1280x2772
- Refresh rate: 165 Hz
Poco X3 Pro
- 5160 mAh
- Wired: 33W
- No wireless charging
Redmi K90 Ultra
- 8550 mAh
- Wired: 100W
- No wireless charging
We compared Poco X3 Pro and Redmi K90 Ultra, covering their specs and all relevant benchmarks.
Redmi K90 Ultra leads Poco X3 Pro by 74.5% in our overall performance rating.
Launch price difference: $170. Poco X3 Pro was $170 cheaper at launch.
performance
In the "performance" category, the Redmi K90 Ultra significantly outperforms the Poco X3 Pro (92/100 vs 53/100).
display
In the "display" category, the Redmi K90 Ultra notably outperforms the Poco X3 Pro (94/100 vs 66/100).
camera
In the "camera" category, the Redmi K90 Ultra and the Poco X3 Pro are nearly equal (37/100 vs 36/100).
battery
In the "battery" category, the Redmi K90 Ultra notably outperforms the Poco X3 Pro (78/100 vs 49/100).
portability
In the "portability" category, the Redmi K90 Ultra is a bit better (40/100 vs 35/100).
Which is better: the Poco X3 Pro or the Redmi K90 Ultra?
The Redmi K90 Ultra significantly outperforms the Poco X3 Pro by 24 points (73/100 vs 49/100).
What is the rating of the Poco X3 Pro and the Redmi K90 Ultra?
The Poco X3 Pro has a MobileRank rating of 49/100, the Redmi K90 Ultra — 73/100.
Which is more powerful: the Poco X3 Pro or the Redmi K90 Ultra?
The Redmi K90 Ultra leads on performance (92/100 vs 53/100).
Should you choose the Poco X3 Pro over the Redmi K90 Ultra?
The Poco X3 Pro is a better fit for everyday use. The Redmi K90 Ultra is a better fit for gamers and power users, those who care about battery life, budget-conscious buyers.