Nubia Z70 Ultra vs Redmi K90 Ultra

The Nubia Z70 Ultra (2025) runs on the Qualcomm Snapdragon 8 Elite, while the Redmi K90 Ultra (2026) runs on the Qualcomm Snapdragon 8 Elite; launch prices were $729 and $420. By overall MobileRank rating, the Nubia Z70 Ultra leads — 80/100 vs 73/100 (a 7-point difference). Key differences: the Redmi K90 Ultra has the bigger battery (8550 mAh vs 6150); the Redmi K90 Ultra is faster in AnTuTu (3,233,695 vs 3,126,402).

The Nubia Z70 Ultra edges out the Redmi K90 Ultra by just 7 points — the two devices are very close in overall level.

Profile comparison

Category scores

Nubia Z70 Ultra

Performance 91
Display 92
Camera 79
Battery 64
Portability 36
Value for money 74

Redmi K90 Ultra

Performance 92
Display 94
Camera 37
Battery 78
Portability 40
Value for money 72

What makes Nubia Z70 Ultra better?


  • Better camera (79/100 vs 37/100)

What makes Redmi K90 Ultra better?

  • Higher AnTuTu: 3233695 vs 3126402
  • Bigger battery: 8550 vs 6150 mAh
  • Faster charging: 100W vs 80W
  • Higher refresh rate: 165Hz vs 144Hz
  • Cheaper at launch: $420 vs $729

  • Higher performance (92/100 vs 91/100)
  • Longer battery life (78/100 vs 64/100)
  • Better display (94/100 vs 92/100)
  • Better portability (40/100 vs 36/100)

Comparison verdict

Comparing the Nubia Z70 Ultra vs the Redmi K90 Ultra, the Nubia Z70 Ultra scores 7 points higher (80/100 vs 73/100). In the "camera" category, the Nubia Z70 Ultra leads (79/100 vs 37/100). In the "battery" category, the Redmi K90 Ultra leads (78/100 vs 64/100). Value score: Nubia Z70 Ultra — 74/100, 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 and the Nubia Z70 Ultra are nearly equal (92/100 vs 91/100). In the "display" category, the Redmi K90 Ultra and the Nubia Z70 Ultra are nearly equal (94/100 vs 92/100). In the "camera" category, the Nubia Z70 Ultra significantly outperforms the Redmi K90 Ultra (79/100 vs 37/100). In the "battery" category, the Redmi K90 Ultra is a bit better (78/100 vs 64/100). In the "portability" category, the Redmi K90 Ultra and the Nubia Z70 Ultra are nearly equal (40/100 vs 36/100).

Nubia Z70 Ultra: The Nubia Z70 Ultra is a better fit for gamers and power users.
Redmi K90 Ultra: The Redmi K90 Ultra is a better fit for gamers and power users, those who care about battery life.

Specs comparison

Specification Nubia Z70 Ultra Redmi K90 Ultra
Processor Qualcomm Snapdragon 8 Elite Qualcomm Snapdragon 8 Elite
AnTuTu 3126402 3233695
Geekbench Single 3013 3013
Geekbench Multi 9287 9287
Display 6.8" AMOLED 6.8" AMOLED
Resolution 2668x1216 1280x2772
Refresh rate 144 Hz 165 Hz
Battery 6150 mAh 8550 mAh
Charging 80W 100W
Main camera 50 MP 50 MP
Ultrawide 50 MP 8 MP
Telephoto 64 MP 0 MP
Front camera 16 MP 20 MP
RAM 12GB / 16GB 12GB / 16GB
Storage 256GB / 512GB / 1TB 256GB / 512GB
OS Android 15 Android 16
Brightness (peak) 2000 nits 3500 nits
NFC yes yes
Protection IP68 IP68/IP69
Dimensions 164.3×77.1×8.6 mm 162.9×77.9×8.2 mm
Weight 227 g 227 g
Launch price $729 $420

Camera comparison

Nubia Z70 Ultra

  • Main: 50MP f/1.59
  • Ultrawide: 50MP
  • Telephoto: 64MP
  • Front: 16MP
79
camera

Redmi K90 Ultra

  • Main: 50MP f/1.7
  • Ultrawide: 8MP
  • Front: 20MP
37
camera

Display comparison

Nubia Z70 Ultra

  • 6.8" AMOLED
  • Resolution: 2668x1216
  • Refresh rate: 144 Hz
92
display

Redmi K90 Ultra

  • 6.8" AMOLED
  • Resolution: 1280x2772
  • Refresh rate: 165 Hz
94
display

Battery and charging

Nubia Z70 Ultra

  • 6150 mAh
  • NanoReview test: web browsing 8:27 hrs, total 20:13 hrs
  • Wired: 80W
  • No wireless charging
64
battery

Redmi K90 Ultra

  • 8550 mAh
  • Wired: 100W
  • No wireless charging
78
battery

Overall performance score

We compared Nubia Z70 Ultra and Redmi K90 Ultra, covering their specs and all relevant benchmarks.

Nubia Z70 Ultra Qualcomm Snapdragon 8 Elite
80/100
3126402 AnTuTu
Redmi K90 Ultra Qualcomm Snapdragon 8 Elite
73/100 +3.3%
3233695 AnTuTu

Redmi K90 Ultra leads Nubia Z70 Ultra by 3.3% in our overall performance rating.

Benchmarks

Launch prices and where to check today's

Nubia Z70 Ultra

$729

Redmi K90 Ultra

$420

Launch price difference: $309. Redmi K90 Ultra was $309 cheaper at launch.

Detailed category analysis

performance

In the "performance" category, the Redmi K90 Ultra and the Nubia Z70 Ultra are nearly equal (92/100 vs 91/100).

display

In the "display" category, the Redmi K90 Ultra and the Nubia Z70 Ultra are nearly equal (94/100 vs 92/100).

camera

In the "camera" category, the Nubia Z70 Ultra significantly outperforms the Redmi K90 Ultra (79/100 vs 37/100).

battery

In the "battery" category, the Redmi K90 Ultra is a bit better (78/100 vs 64/100).

portability

In the "portability" category, the Redmi K90 Ultra and the Nubia Z70 Ultra are nearly equal (40/100 vs 36/100).

Frequently asked questions

Which is better: the Nubia Z70 Ultra or the Redmi K90 Ultra?

The Nubia Z70 Ultra edges out the Redmi K90 Ultra by just 7 points — the two devices are very close in overall level.

What is the rating of the Nubia Z70 Ultra and the Redmi K90 Ultra?

The Nubia Z70 Ultra has a MobileRank rating of 80/100, the Redmi K90 Ultra — 73/100.

Which has the better camera: the Nubia Z70 Ultra or the Redmi K90 Ultra?

The Nubia Z70 Ultra leads on camera score (79/100 vs 37/100).

Should you choose the Nubia Z70 Ultra over the Redmi K90 Ultra?

The Nubia Z70 Ultra is a better fit for gamers and power users. The Redmi K90 Ultra is a better fit for gamers and power users, those who care about battery life.