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InnoReviews

POCO M8x 5G vs vivo Y31 5G

WINNER
POCO M8x 5G

POCO

POCO M8x 5G

$170

42.4Inno Score
VS
vivo Y31 5G
40.3Inno Score
20Performance20
50.5Display39.6
29Camera29
71.3Battery66.2
62.7Features73.3
4 spec wins — POCO M8x 5G3 spec wins — vivo Y31 5G

InnoReviews verdict

POCO M8x 5G wins this phone face-off, 42.4 to 40.3, pulling ahead mainly in display (+11) and battery (+5). vivo Y31 5G still makes sense if its price or standout specs fit your needs better.

Which would you pick?

Key differences

Reasons to pick the POCO M8x 5G

  • Stronger display score: 51 vs 40
  • Stronger battery score: 71 vs 66
  • 22% higher capacity: 7,900 mAh vs 6,500 mAh
  • Has 3.5mm jack — the other doesn't

Reasons to pick the vivo Y31 5G

  • Stronger features score: 73 vs 63
  • 10% lower weight: 209 g vs 232 g

Display

Display comparison: POCO M8x 5G versus vivo Y31 5G
SpecPOCO M8x 5Gvivo Y31 5G
Screen size6.9 ″+3%6.68 ″
Panel typeLCDIPS LCD
Resolution720x1600720x1608
Pixel density254 ppi264 ppi+4%
Refresh rate120 Hz120 Hz
Peak brightness—1,000 nits

Performance

Performance comparison: POCO M8x 5G versus vivo Y31 5G
SpecPOCO M8x 5Gvivo Y31 5G
ChipsetQualcomm Snapdragon 4 Gen 5Qualcomm Snapdragon 4 Gen 2
RAM (max)6 GB6 GB
Storage options128GB128GB
Storage typeUFS 2.2eMMC 5.1

Camera

Camera comparison: POCO M8x 5G versus vivo Y31 5G
SpecPOCO M8x 5Gvivo Y31 5G
Main camera50 MP50 MP
Main aperturef/1.8f/1.8
Max video—1080p@30fps
Front camera8 MP8 MP
OIS—No

Battery

Battery comparison: POCO M8x 5G versus vivo Y31 5G
SpecPOCO M8x 5Gvivo Y31 5G
Capacity7,900 mAh+22%6,500 mAh
Wired charging45 W+2%44 W
Wireless charging0 W—

Design

Design comparison: POCO M8x 5G versus vivo Y31 5G
SpecPOCO M8x 5Gvivo Y31 5G
Weight232 g209 g+10%
Thickness8.8 mm8.4 mm+5%
IP ratingIP64IP68/IP69

Connectivity

Connectivity comparison: POCO M8x 5G versus vivo Y31 5G
SpecPOCO M8x 5Gvivo Y31 5G
5GYesYes
Wi-Fi—Wi-Fi 5
Bluetooth5.14.2
NFC—No
USB—USB-C 2.0
eSIM—No

Software

Software comparison: POCO M8x 5G versus vivo Y31 5G
SpecPOCO M8x 5Gvivo Y31 5G
OS at launchAndroid 16 (HyperOS 3)Android 15 (Funtouch OS 15)
OS update pledge4 years—

Audio

Audio comparison: POCO M8x 5G versus vivo Y31 5G
SpecPOCO M8x 5Gvivo Y31 5G
Stereo speakersYesYes
3.5mm jackYesNo

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