Poco F3 vs Redmi K90 Ultra
The Poco F3 (2021) runs on the Qualcomm Snapdragon 870, while the Redmi K90 Ultra (2026) runs on the Qualcomm Snapdragon 8 Elite; launch prices were $370 and $420. 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 4520); the main camera is 48 MP vs 50 MP; the Redmi K90 Ultra is faster in AnTuTu (3,233,695 vs 998,482); the Poco F3 is noticeably lighter (196g vs 227g).
Profile comparison
Category scores
Poco F3
Redmi K90 Ultra
What makes Poco F3 better?
- Lighter: 196g vs 227g
- Cheaper at launch: $370 vs $420
- Better portability (64/100 vs 40/100)
What makes Redmi K90 Ultra better?
- Higher AnTuTu: 3233695 vs 998482
- Better Geekbench Single: 3013 vs 1298
- Better Geekbench Multi: 9287 vs 3520
- Bigger battery: 8550 vs 4520 mAh
- Faster charging: 100W vs 33W
- Better main camera: 50MP vs 48MP
- Higher refresh rate: 165Hz vs 120Hz
- Higher performance (92/100 vs 61/100)
- Better camera (37/100 vs 36/100)
- Longer battery life (78/100 vs 42/100)
- Better display (94/100 vs 79/100)
Comparison verdict
Comparing the Poco F3 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 61/100). In the "battery" category, the Redmi K90 Ultra leads (78/100 vs 42/100). Value score: Poco F3 — 40/100, Redmi K90 Ultra — 72/100; it shows how far a model sits above or below the usual level for its price, and is not part of the overall rating. In the "performance" category, the Redmi K90 Ultra significantly outperforms the Poco F3 (92/100 vs 61/100). In the "display" category, the Redmi K90 Ultra notably outperforms the Poco F3 (94/100 vs 79/100). In the "camera" category, the Redmi K90 Ultra and the Poco F3 are nearly equal (37/100 vs 36/100). In the "battery" category, the Redmi K90 Ultra significantly outperforms the Poco F3 (78/100 vs 42/100). In the "portability" category, the Poco F3 notably outperforms the Redmi K90 Ultra (64/100 vs 40/100).
Specs comparison
| Specification | Poco F3 | Redmi K90 Ultra | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 870 | Qualcomm Snapdragon 8 Elite | |
| AnTuTu | 998482 | 3233695 | |
| Geekbench Single | 1298 | 3013 | |
| Geekbench Multi | 3520 | 9287 | |
| Display | 6.7" AMOLED | 6.8" AMOLED | |
| Resolution | 2400x1080 | 1280x2772 | |
| Refresh rate | 120 Hz | 165 Hz | |
| Battery | 4520 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) | 1300 nits | 3500 nits | |
| NFC | yes | yes | |
| Protection | IP53 | IP68/IP69 | |
| Dimensions | 163.7×76.4×7.8 mm | 162.9×77.9×8.2 mm | |
| Weight | 196 g | 227 g | |
| Launch price | $370 | $420 |
Camera comparison
Poco F3
- Main: 48MP f/1.8
- Ultrawide: 8MP
- Front: 20MP
Redmi K90 Ultra
- Main: 50MP f/1.7
- Ultrawide: 8MP
- Front: 20MP
Display comparison
Poco F3
- 6.7" AMOLED
- Resolution: 2400x1080
- Refresh rate: 120 Hz
Redmi K90 Ultra
- 6.8" AMOLED
- Resolution: 1280x2772
- Refresh rate: 165 Hz
Battery and charging
Poco F3
- 4520 mAh
- Wired: 33W
- Wireless charging: no data
Redmi K90 Ultra
- 8550 mAh
- Wired: 100W
- No wireless charging
Overall performance score
We compared Poco F3 and Redmi K90 Ultra, covering their specs and all relevant benchmarks.
Redmi K90 Ultra leads Poco F3 by 69.1% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Launch price difference: $50. Poco F3 was $50 cheaper at launch.
Detailed category analysis
performance
In the "performance" category, the Redmi K90 Ultra significantly outperforms the Poco F3 (92/100 vs 61/100).
display
In the "display" category, the Redmi K90 Ultra notably outperforms the Poco F3 (94/100 vs 79/100).
camera
In the "camera" category, the Redmi K90 Ultra and the Poco F3 are nearly equal (37/100 vs 36/100).
battery
In the "battery" category, the Redmi K90 Ultra significantly outperforms the Poco F3 (78/100 vs 42/100).
portability
In the "portability" category, the Poco F3 notably outperforms the Redmi K90 Ultra (64/100 vs 40/100).
Frequently asked questions
Which is better: the Poco F3 or the Redmi K90 Ultra?
The Redmi K90 Ultra is noticeably better than the Poco F3 — the overall rating gap is 19 points.
What is the rating of the Poco F3 and the Redmi K90 Ultra?
The Poco F3 has a MobileRank rating of 54/100, the Redmi K90 Ultra — 73/100.
Which is more powerful: the Poco F3 or the Redmi K90 Ultra?
The Redmi K90 Ultra leads on performance (92/100 vs 61/100).
Should you choose the Poco F3 over the Redmi K90 Ultra?
The Poco F3 is a better fit for active users. The Redmi K90 Ultra is a better fit for gamers and power users, those who care about battery life.