Redmi K90 Ultra vs ZTE Axon 40
The Redmi K90 Ultra (2026) runs on the Qualcomm Snapdragon 8 Elite, while the ZTE Axon 40 (2022) runs on the Qualcomm Snapdragon 870. By overall MobileRank rating, the Redmi K90 Ultra leads — 73/100 vs 58/100 (a 15-point difference). Key differences: the Redmi K90 Ultra has the bigger battery (8550 mAh vs 5000); the main camera is 50 MP vs 64 MP; the Redmi K90 Ultra is faster in AnTuTu (3,233,695 vs 1,010,069); the ZTE Axon 40 is noticeably lighter (200g vs 227g).
Profile comparison
Category scores
Redmi K90 Ultra
ZTE Axon 40
What makes Redmi K90 Ultra better?
- Higher AnTuTu: 3233695 vs 1010069
- Better Geekbench Single: 3013 vs 1298
- Better Geekbench Multi: 9287 vs 3520
- Bigger battery: 8550 vs 5000 mAh
- Higher refresh rate: 165Hz vs 120Hz
- Higher performance (92/100 vs 61/100)
- Longer battery life (78/100 vs 52/100)
- Better display (94/100 vs 73/100)
What makes ZTE Axon 40 better?
- Better main camera: 64MP vs 50MP
- Lighter: 200g vs 227g
- Better camera (51/100 vs 37/100)
- Better portability (53/100 vs 40/100)
Comparison verdict
Comparing the Redmi K90 Ultra vs the ZTE Axon 40, the Redmi K90 Ultra scores 15 points higher (73/100 vs 58/100). In the "performance" category, the Redmi K90 Ultra leads (92/100 vs 61/100). In the "camera" category, the ZTE Axon 40 leads (51/100 vs 37/100). In the "battery" category, the Redmi K90 Ultra leads (78/100 vs 52/100). In the "performance" category, the Redmi K90 Ultra significantly outperforms the ZTE Axon 40 (92/100 vs 61/100). In the "display" category, the Redmi K90 Ultra notably outperforms the ZTE Axon 40 (94/100 vs 73/100). In the "camera" category, the ZTE Axon 40 is a bit better (51/100 vs 37/100). In the "battery" category, the Redmi K90 Ultra notably outperforms the ZTE Axon 40 (78/100 vs 52/100). In the "portability" category, the ZTE Axon 40 is a bit better (53/100 vs 40/100).
Specs comparison
| Specification | Redmi K90 Ultra | ZTE Axon 40 | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 8 Elite | Qualcomm Snapdragon 870 | |
| AnTuTu | 3233695 | 1010069 | |
| Geekbench Single | 3013 | 1298 | |
| Geekbench Multi | 9287 | 3520 | |
| Display | 6.8" AMOLED | 6.7" | |
| Resolution | 1280x2772 | 1080x2400 | |
| Refresh rate | 165 Hz | 120 Hz | |
| Battery | 8550 mAh | 5000 mAh | |
| Charging | 100W | — | |
| Main camera | 50 MP | 64 MP | |
| Ultrawide | 8 MP | 8 MP | |
| Front camera | 20 MP | 44 MP | |
| RAM | 12GB / 16GB | — | |
| Storage | 256GB / 512GB | 128GB | |
| OS | Android 16 | Android 12 Snow Cone | |
| Brightness (peak) | 3500 nits | — | |
| NFC | yes | yes | |
| Protection | IP68/IP69 | — | |
| Dimensions | 162.9×77.9×8.2 mm | 163.4×75.9×8.6 mm | |
| Weight | 227 g | 200 g | |
| Launch price | $420 | — |
Camera comparison
Redmi K90 Ultra
- Main: 50MP f/1.7
- Ultrawide: 8MP
- Front: 20MP
ZTE Axon 40
- Main: 64MP
- Ultrawide: 8MP
- Front: 44MP
Display comparison
Redmi K90 Ultra
- 6.8" AMOLED
- Resolution: 1280x2772
- Refresh rate: 165 Hz
ZTE Axon 40
- 6.7"
- Resolution: 1080x2400
- Refresh rate: 120 Hz
Battery and charging
Redmi K90 Ultra
- 8550 mAh
- Wired: 100W
- No wireless charging
ZTE Axon 40
- 5000 mAh
- No wireless charging
Overall performance score
We compared Redmi K90 Ultra and ZTE Axon 40, covering their specs and all relevant benchmarks.
Redmi K90 Ultra leads ZTE Axon 40 by 220.1% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
ZTE Axon 40
Price unknownDetailed category analysis
performance
In the "performance" category, the Redmi K90 Ultra significantly outperforms the ZTE Axon 40 (92/100 vs 61/100).
display
In the "display" category, the Redmi K90 Ultra notably outperforms the ZTE Axon 40 (94/100 vs 73/100).
camera
In the "camera" category, the ZTE Axon 40 is a bit better (51/100 vs 37/100).
battery
In the "battery" category, the Redmi K90 Ultra notably outperforms the ZTE Axon 40 (78/100 vs 52/100).
portability
In the "portability" category, the ZTE Axon 40 is a bit better (53/100 vs 40/100).
Frequently asked questions
Which is better: the Redmi K90 Ultra or the ZTE Axon 40?
The Redmi K90 Ultra is noticeably better than the ZTE Axon 40 — the overall rating gap is 15 points.
What is the rating of the Redmi K90 Ultra and the ZTE Axon 40?
The Redmi K90 Ultra has a MobileRank rating of 73/100, the ZTE Axon 40 — 58/100.
Which has the better camera: the Redmi K90 Ultra or the ZTE Axon 40?
The ZTE Axon 40 leads on camera score (51/100 vs 37/100).
Which is more powerful: the Redmi K90 Ultra or the ZTE Axon 40?
The Redmi K90 Ultra leads on performance (92/100 vs 61/100).
Should you choose the Redmi K90 Ultra over the ZTE Axon 40?
The Redmi K90 Ultra is a better fit for gamers and power users, those who care about battery life. The ZTE Axon 40 is a better fit for active users.