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InnoReviews

REDMI K90 Max vs vivo Y31d

WINNER
REDMI K90 Max
69.2Inno Score
VS
vivo Y31d
41.8Inno Score
64.4Performance28.9
79.4Display42.5
43.4Camera29
83.2Battery70.9
86.7Features46.7
12 spec wins — REDMI K90 Max1 spec wins — vivo Y31d

InnoReviews verdict

REDMI K90 Max wins this phone face-off, 69.2 to 41.8, pulling ahead mainly in features (+40) and display (+37). vivo Y31d still makes sense if its price or standout specs fit your needs better.

Which would you pick?

Key differences

Reasons to pick the REDMI K90 Max

  • Stronger performance score: 64 vs 29
  • Stronger display score: 79 vs 43
  • Stronger camera score: 43 vs 29
  • Stronger battery score: 83 vs 71
  • Stronger features score: 87 vs 47

Reasons to pick the vivo Y31d

No decisive spec advantages — this side competes on price and preference.

Display

Display comparison: REDMI K90 Max versus vivo Y31d
SpecREDMI K90 Maxvivo Y31d
Screen size6.83 ″+1%6.75 ″
Panel typeAMOLEDIPS LCD
Resolution1280x2772720x1570
Pixel density447 ppi+75%256 ppi
Refresh rate165 Hz+38%120 Hz
Peak brightness3,500 nits+180%1,250 nits
Screen-to-body—85.3 %

Performance

Performance comparison: REDMI K90 Max versus vivo Y31d
SpecREDMI K90 Maxvivo Y31d
ChipsetMediaTek Dimensity 9500Qualcomm Snapdragon 6s 4G Gen 2
RAM (max)16 GB+100%8 GB
Storage options256/512GB/1TB128/256GB
Storage typeUFS 4.1UFS 2.2

Camera

Camera comparison: REDMI K90 Max versus vivo Y31d
SpecREDMI K90 Maxvivo Y31d
Main camera50 MP50 MP
Main aperturef/1.68f/2.0
Ultra-wide8 MP—
Max video8K@30fps1080p@30fps
Front camera20 MP+150%8 MP
OISYesNo

Battery

Battery comparison: REDMI K90 Max versus vivo Y31d
SpecREDMI K90 Maxvivo Y31d
Capacity8,550 mAh+19%7,200 mAh
Wired charging100 W+127%44 W

Design

Design comparison: REDMI K90 Max versus vivo Y31d
SpecREDMI K90 Maxvivo Y31d
Weight227 g219 g+4%
Thickness8.2 mm+3%8.4 mm
IP ratingIP66/IP68/IP69IP68/IP69
Frame material—Plastic

Connectivity

Connectivity comparison: REDMI K90 Max versus vivo Y31d
SpecREDMI K90 Maxvivo Y31d
5GYesNo
Wi-FiWi-Fi 7Wi-Fi 5
Bluetooth5.45.1
NFCYesNo
USBUSB-CUSB-C 2.0
eSIMNoNo

Software

Software comparison: REDMI K90 Max versus vivo Y31d
SpecREDMI K90 Maxvivo Y31d
OS at launchAndroid 16 (HyperOS 3)Android 16 (OriginOS 6)

Audio

Audio comparison: REDMI K90 Max versus vivo Y31d
SpecREDMI K90 Maxvivo Y31d
Stereo speakersYesYes
3.5mm jack—No

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