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InnoReviews

OPPO Find X9 Ultra vs REDMI K90 Ultra

WINNER
OPPO Find X9 Ultra
87.6Inno Score
VS
REDMI K90 Ultra
69.1Inno Score
91.2Performance64.4
81Display78.7
83.2Camera43.4
95Battery83.2
84Features86.7
7 spec wins — OPPO Find X9 Ultra5 spec wins — REDMI K90 Ultra

InnoReviews verdict

OPPO Find X9 Ultra wins this phone face-off, 87.6 to 69.1, pulling ahead mainly in camera (+40) and performance (+27). REDMI K90 Ultra still makes sense if its price or standout specs fit your needs better.

Which would you pick?

Key differences

Reasons to pick the OPPO Find X9 Ultra

  • Stronger performance score: 91 vs 64
  • Stronger camera score: 83 vs 43
  • Stronger battery score: 95 vs 83
  • 525% higher ultra-wide: 50 MP vs 8 MP
  • 300% higher Main camera: 200 MP vs 50 MP

Reasons to pick the REDMI K90 Ultra

  • 21% higher capacity: 8,550 mAh vs 7,050 mAh
  • 15% higher Refresh rate: 165 Hz vs 144 Hz

Display

Display comparison: OPPO Find X9 Ultra versus REDMI K90 Ultra
SpecOPPO Find X9 UltraREDMI K90 Ultra
Screen size6.82 ″6.83 ″
Panel typeLTPO AMOLEDAMOLED
Resolution3168x14401280x2772
Pixel density510 ppi+14%447 ppi
Refresh rate144 Hz165 Hz+15%
Peak brightness3,600 nits+3%3,500 nits
Screen-to-body94.6 %+5%90.3 %

Performance

Performance comparison: OPPO Find X9 Ultra versus REDMI K90 Ultra
SpecOPPO Find X9 UltraREDMI K90 Ultra
ChipsetSnapdragon 8 Elite Gen 5Snapdragon 8 Elite
AnTuTu4,110,112—
Geekbench 6 (single)3,626Top 4%—
Geekbench 6 (multi)10,895Top 4%—
Wild Life Extreme stability40 %Bottom 3%—
RAM (max)16 GB16 GB
Storage options256GB / 512GB / 1TB256/512GB
Storage typeUFS 4.1UFS 4.1

Camera

Camera comparison: OPPO Find X9 Ultra versus REDMI K90 Ultra
SpecOPPO Find X9 UltraREDMI K90 Ultra
Main camera200 MP+300%50 MP
Main aperturef/1.5f/1.7
Ultra-wide50 MP+525%8 MP
Telephoto200 MP—
Optical zoom3 x—
Max video8K@30fps8K@30fps
Front camera50 MP+150%20 MP
OISYesYes

Battery

Battery comparison: OPPO Find X9 Ultra versus REDMI K90 Ultra
SpecOPPO Find X9 UltraREDMI K90 Ultra
Capacity7,050 mAh8,550 mAh+21%
Wired charging100 W100 W
Wireless charging50 W—
Active use endurance20.2 h—

Design

Design comparison: OPPO Find X9 Ultra versus REDMI K90 Ultra
SpecOPPO Find X9 UltraREDMI K90 Ultra
Weight235 g227 g+3%
Thickness8.7 mm8.2 mm+5%
IP ratingIP66/IP68/IP69IP68/IP69
Frame materialAluminumAluminum

Connectivity

Connectivity comparison: OPPO Find X9 Ultra versus REDMI K90 Ultra
SpecOPPO Find X9 UltraREDMI K90 Ultra
5GYesYes
Wi-FiWi-Fi 7Wi-Fi 7
Bluetooth6.05.4
NFCYesYes
USBUSB-C 3.2USB-C
eSIMYesNo

Software

Software comparison: OPPO Find X9 Ultra versus REDMI K90 Ultra
SpecOPPO Find X9 UltraREDMI K90 Ultra
OS at launchAndroid 16 (ColorOS 16)Android 16 (HyperOS 3)
OS update pledge5 years—

Audio

Audio comparison: OPPO Find X9 Ultra versus REDMI K90 Ultra
SpecOPPO Find X9 UltraREDMI K90 Ultra
Stereo speakersYesYes
3.5mm jackNoNo

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