Redmi K90 Ultra vs ZTE Axon 31 Pro 5G

The Redmi K90 Ultra (2026) runs on the Qualcomm Snapdragon 8 Elite, while the ZTE Axon 31 Pro 5G (2021) runs on the Qualcomm Snapdragon 888. By overall MobileRank rating, the Redmi K90 Ultra leads — 75/100 vs 61/100 (a 14-point difference). Key differences: the Redmi K90 Ultra has the bigger battery (8550 mAh vs 4200); the main camera is 50 MP vs 64 MP; the Redmi K90 Ultra is faster in AnTuTu (3,119,308 vs 1,119,714); the ZTE Axon 31 Pro 5G is noticeably lighter (183g vs 227g).

The Redmi K90 Ultra is noticeably better than the ZTE Axon 31 Pro 5G — the overall rating gap is 14 points.
Profile comparison
Category scores
Redmi K90 Ultra
Performance 92
Display 94
Camera 37
Battery 92
Portability 40
Value for money 86
ZTE Axon 31 Pro 5G
Performance 63
Display 89
Camera 63
Battery 30
Portability 70
Value for money
What makes Redmi K90 Ultra better?
  • Higher AnTuTu: 3119308 vs 1119714
  • Better Geekbench Single: 3041 vs 1488
  • Better Geekbench Multi: 9494 vs 3373
  • Bigger battery: 8550 vs 4200 mAh
  • Higher refresh rate: 165Hz vs 144Hz

  • Higher performance (92/100 vs 63/100)
  • Longer battery life (92/100 vs 30/100)
  • Better display (94/100 vs 89/100)
What makes ZTE Axon 31 Pro 5G better?
  • Better main camera: 64MP vs 50MP
  • Lighter: 183g vs 227g

  • Better camera (63/100 vs 37/100)
  • Better portability (70/100 vs 40/100)
Comparison verdict

Comparing the Redmi K90 Ultra vs the ZTE Axon 31 Pro 5G, the Redmi K90 Ultra scores 14 points higher (75/100 vs 61/100). In the "performance" category, the Redmi K90 Ultra leads (92/100 vs 63/100). In the "camera" category, the ZTE Axon 31 Pro 5G leads (63/100 vs 37/100). In the "battery" category, the Redmi K90 Ultra leads (92/100 vs 30/100). In the "performance" category, the Redmi K90 Ultra notably outperforms the ZTE Axon 31 Pro 5G (92/100 vs 63/100). In the "display" category, the Redmi K90 Ultra is a bit better (94/100 vs 89/100). In the "camera" category, the ZTE Axon 31 Pro 5G notably outperforms the Redmi K90 Ultra (63/100 vs 37/100). In the "battery" category, the Redmi K90 Ultra significantly outperforms the ZTE Axon 31 Pro 5G (92/100 vs 30/100). In the "portability" category, the ZTE Axon 31 Pro 5G significantly outperforms the Redmi K90 Ultra (70/100 vs 40/100).

Redmi K90 Ultra: The Redmi K90 Ultra is a better fit for gamers and power users, those who care about battery life, budget-conscious buyers.
ZTE Axon 31 Pro 5G: The ZTE Axon 31 Pro 5G is a better fit for active users.
Specs comparison
Specification Redmi K90 Ultra ZTE Axon 31 Pro 5G
Processor Qualcomm Snapdragon 8 Elite Qualcomm Snapdragon 888
AnTuTu 3119308 1119714
Geekbench Single 3041 1488
Geekbench Multi 9494 3373
Display 6.8" AMOLED 6.7" Amoled
Resolution 1280x2772 1080x2400
Refresh rate 165 Hz 144 Hz
Battery 8550 mAh 4200 mAh
Charging 100W
Main camera 50 MP 64 MP
Ultrawide 8 MP 64 MP
Front camera 20 MP
RAM 12GB / 16GB
Storage 256GB / 512GB 128GB
OS Android 16 Android 11 Red Velvet Cake
Brightness (peak) 3500 nits
NFC yes yes
Protection IP68/IP69
Dimensions 162.9×77.9×8.2 mm 163.6×75.3×7.9 mm
Weight 227 g 183 g
Price $420
Camera comparison
Redmi K90 Ultra
  • Main: 50MP f/1.7
  • Ultrawide: 8MP
  • Front: 20MP
37
camera
ZTE Axon 31 Pro 5G
  • Main: 64MP
  • Ultrawide: 64MP
  • Front: —
63
camera
Display comparison
Redmi K90 Ultra
  • 6.8" AMOLED
  • Resolution: 1280x2772
  • Refresh rate: 165 Hz
94
display
ZTE Axon 31 Pro 5G
  • 6.7" Amoled
  • Resolution: 1080x2400
  • Refresh rate: 144 Hz
89
display
Battery and charging
Redmi K90 Ultra
  • 8550 mAh
  • Wired: 100W
  • Wireless charging: no data
92
battery
ZTE Axon 31 Pro 5G
  • 4200 mAh
  • No wireless charging
30
battery
Overall performance score

We compared Redmi K90 Ultra and ZTE Axon 31 Pro 5G, covering their specs and all relevant benchmarks.

Redmi K90 Ultra Qualcomm Snapdragon 8 Elite
75/100
3119308 AnTuTu
ZTE Axon 31 Pro 5G Qualcomm Snapdragon 888
61/100 -178.6%
1119714 AnTuTu

Redmi K90 Ultra leads ZTE Axon 31 Pro 5G by 178.6% in our overall performance rating.

Benchmarks
Price and availability
Redmi K90 Ultra
$420
ZTE Axon 31 Pro 5G
Price unknown
Detailed category analysis
performance

In the "performance" category, the Redmi K90 Ultra notably outperforms the ZTE Axon 31 Pro 5G (92/100 vs 63/100).

display

In the "display" category, the Redmi K90 Ultra is a bit better (94/100 vs 89/100).

camera

In the "camera" category, the ZTE Axon 31 Pro 5G notably outperforms the Redmi K90 Ultra (63/100 vs 37/100).

battery

In the "battery" category, the Redmi K90 Ultra significantly outperforms the ZTE Axon 31 Pro 5G (92/100 vs 30/100).

portability

In the "portability" category, the ZTE Axon 31 Pro 5G significantly outperforms the Redmi K90 Ultra (70/100 vs 40/100).

Frequently asked questions
Which is better: the Redmi K90 Ultra or the ZTE Axon 31 Pro 5G?

The Redmi K90 Ultra is noticeably better than the ZTE Axon 31 Pro 5G — the overall rating gap is 14 points.

What is the rating of the Redmi K90 Ultra and the ZTE Axon 31 Pro 5G?

The Redmi K90 Ultra has a MobileRank rating of 75/100, the ZTE Axon 31 Pro 5G — 61/100.

Which has the better camera: the Redmi K90 Ultra or the ZTE Axon 31 Pro 5G?

The ZTE Axon 31 Pro 5G leads on camera score (63/100 vs 37/100).

Which is more powerful: the Redmi K90 Ultra or the ZTE Axon 31 Pro 5G?

The Redmi K90 Ultra leads on performance (92/100 vs 63/100).

Should you choose the Redmi K90 Ultra over the ZTE Axon 31 Pro 5G?

The Redmi K90 Ultra is a better fit for gamers and power users, those who care about battery life, budget-conscious buyers. The ZTE Axon 31 Pro 5G is a better fit for active users.