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InnoReviews

nubia Z70S Ultra vs Redmi K90

N
73.3Inno Score
VS
WINNER
Redmi K90

Xiaomi

Redmi K90
74.3Inno Score
78.4Performance84.3
68.2Display65.4
61.1Camera53.1
76.1Battery83.2
86.7Features86.7
7 spec wins — nubia Z70S Ultra7 spec wins — Redmi K90

InnoReviews verdict

This one is close to a dead heat: nubia Z70S Ultra scores 73.3 against 74.3 for Redmi K90. Pick by the categories that matter to you — Redmi K90 edges ahead in battery and performance, or by price.

Which would you pick?

Key differences

Reasons to pick the nubia Z70S Ultra

  • Stronger camera score: 61 vs 53
  • 525% higher ultra-wide: 50 MP vs 8 MP
  • 50% higher RAM (max): 24 GB vs 16 GB
  • 28% higher telephoto: 64 MP vs 50 MP
  • 20% higher Refresh rate: 144 Hz vs 120 Hz

Reasons to pick the Redmi K90

  • Stronger performance score: 84 vs 78
  • Stronger battery score: 83 vs 76
  • 75% higher Peak brightness: 3,500 nits vs 2,000 nits
  • 25% higher Optical zoom: 2.5 x vs 2 x
  • 25% higher Front camera: 20 MP vs 16 MP

Display

Display comparison: nubia Z70S Ultra versus Redmi K90
Specnubia Z70S UltraRedmi K90
Screen size6.85 ″+4%6.59 ″
Panel typeAMOLEDAMOLED
Resolution1216x26882510x1156
Pixel density431 ppi+3%419 ppi
Refresh rate144 Hz+20%120 Hz
Peak brightness2,000 nits3,500 nits+75%
Screen-to-body95.3 %+6%89.8 %

Performance

Performance comparison: nubia Z70S Ultra versus Redmi K90
Specnubia Z70S UltraRedmi K90
ChipsetSnapdragon 8 EliteSnapdragon 8 Elite
AnTuTu—3,106,623Top 11%
AnTuTu 11 (CPU)—872,376Top 15%
AnTuTu 11 (GPU)—1,143,259Top 13%
AnTuTu 11 (Memory)—462,601Top 6%
AnTuTu 11 (UX)—628,387Top 13%
Geekbench 6 (single)2,952Top 16%—
Geekbench 6 (multi)8,952Top 14%—
RAM (max)24 GB+50%16 GB
Storage options256GB/512GB/1TB256GB / 512GB / 1TB
Storage typeUFS 4.0UFS

Camera

Camera comparison: nubia Z70S Ultra versus Redmi K90
Specnubia Z70S UltraRedmi K90
Main camera50 MP50 MP
Main aperturef/1.7f/1.88
Ultra-wide50 MP+525%8 MP
Telephoto64 MP+28%50 MP
Optical zoom2 x2.5 x+25%
Max video8K@30fps8K@30fps
Front camera16 MP20 MP+25%
OISYesYes

Battery

Battery comparison: nubia Z70S Ultra versus Redmi K90
Specnubia Z70S UltraRedmi K90
Capacity6,600 mAh7,100 mAh+8%
Wired charging80 W100 W+25%
Wireless charging0 W—

Design

Design comparison: nubia Z70S Ultra versus Redmi K90
Specnubia Z70S UltraRedmi K90
Weight228 g206 g+10%
Thickness8.6 mm8 mm+7%
IP ratingIP68/IP69IP68
Frame material—Aluminum

Connectivity

Connectivity comparison: nubia Z70S Ultra versus Redmi K90
Specnubia Z70S UltraRedmi K90
5GYesYes
Wi-FiWi-Fi 7Wi-Fi 7
Bluetooth5.45.4
NFCYesYes
USBUSB-C 3.1USB-C
eSIMNoNo

Software

Software comparison: nubia Z70S Ultra versus Redmi K90
Specnubia Z70S UltraRedmi K90
OS at launchAndroid 15 (Nebula AIOS 1.5)Android 16 (HyperOS 3)

Audio

Audio comparison: nubia Z70S Ultra versus Redmi K90
Specnubia Z70S UltraRedmi K90
Stereo speakersYesYes
3.5mm jackNoNo

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