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InnoReviews

OPPO F31 5G vs REDMI K90 Max

OPPO F31 5G
47Inno Score
VS
WINNER
REDMI K90 Max
69.2Inno Score
28.9Performance64.4
55.2Display79.4
30.7Camera43.4
79.8Battery83.2
52Features86.7
2 spec wins — OPPO F31 5G9 spec wins — REDMI K90 Max

InnoReviews verdict

REDMI K90 Max wins this phone face-off, 69.2 to 47, pulling ahead mainly in performance (+36) and features (+35). OPPO F31 5G still makes sense if its price or standout specs fit your needs better.

Which would you pick?

Key differences

Reasons to pick the OPPO F31 5G

  • 19% lower weight: 185 g vs 227 g

Reasons to pick the REDMI K90 Max

  • Stronger performance score: 64 vs 29
  • Stronger display score: 79 vs 55
  • Stronger camera score: 43 vs 31
  • Stronger battery score: 83 vs 80
  • Stronger features score: 87 vs 52

Display

Display comparison: OPPO F31 5G versus REDMI K90 Max
SpecOPPO F31 5GREDMI K90 Max
Screen size6.57 ″6.83 ″+4%
Panel typeAMOLEDAMOLED
Resolution2372x10801280x2772
Pixel density397 ppi447 ppi+13%
Refresh rate120 Hz165 Hz+38%
Peak brightness1,400 nits3,500 nits+150%
Screen-to-body93 %—

Performance

Performance comparison: OPPO F31 5G versus REDMI K90 Max
SpecOPPO F31 5GREDMI K90 Max
ChipsetDimensity 6300MediaTek Dimensity 9500
RAM (max)8 GB16 GB+100%
Storage options128GB / 256GB256/512GB/1TB
Storage typeUFS 2.2UFS 4.1

Camera

Camera comparison: OPPO F31 5G versus REDMI K90 Max
SpecOPPO F31 5GREDMI K90 Max
Main camera50 MP50 MP
Main aperturef/1.8f/1.68
Ultra-wide—8 MP
Max video1080p@60fps8K@30fps
Front camera16 MP20 MP+25%
OIS—Yes

Battery

Battery comparison: OPPO F31 5G versus REDMI K90 Max
SpecOPPO F31 5GREDMI K90 Max
Capacity7,000 mAh8,550 mAh+22%
Wired charging80 W100 W+25%

Design

Design comparison: OPPO F31 5G versus REDMI K90 Max
SpecOPPO F31 5GREDMI K90 Max
Weight185 g+19%227 g
Thickness8 mm+2%8.2 mm
IP ratingIP66/IP68/IP69IP66/IP68/IP69
Frame materialAluminum—

Connectivity

Connectivity comparison: OPPO F31 5G versus REDMI K90 Max
SpecOPPO F31 5GREDMI K90 Max
5GYesYes
Wi-FiWi-Fi 5Wi-Fi 7
Bluetooth5.45.4
NFCNoYes
USBUSB-C 2.0USB-C
eSIMNoNo

Software

Software comparison: OPPO F31 5G versus REDMI K90 Max
SpecOPPO F31 5GREDMI K90 Max
OS at launchAndroid 15 (ColorOS 15)Android 16 (HyperOS 3)
OS update pledge2 years—

Audio

Audio comparison: OPPO F31 5G versus REDMI K90 Max
SpecOPPO F31 5GREDMI K90 Max
Stereo speakersYesYes
3.5mm jackNo—

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