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InnoReviews

OPPO F31 5G vs OPPO K13 5G

WINNER
OPPO F31 5G
47Inno Score
VS
OPPO K13 5G
46.6Inno Score
28.9Performance28.9
55.2Display53.2
30.7Camera30.7
79.8Battery79.8
52Features52
5 spec wins — OPPO F31 5G1 spec wins — OPPO K13 5G

InnoReviews verdict

This one is close to a dead heat: OPPO F31 5G scores 47 against 46.6 for OPPO K13 5G. Pick by the categories that matter to you — OPPO F31 5G edges ahead in display, or by price.

Which would you pick?

Key differences

Reasons to pick the OPPO F31 5G

  • 17% higher Peak brightness: 1,400 nits vs 1,200 nits
  • 11% lower weight: 185 g vs 208 g

Reasons to pick the OPPO K13 5G

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

Display

Display comparison: OPPO F31 5G versus OPPO K13 5G
SpecOPPO F31 5GOPPO K13 5G
Screen size6.57 ″6.67 ″+2%
Panel typeAMOLEDAMOLED
Resolution2372x10802400x1080
Pixel density397 ppi+1%394 ppi
Refresh rate120 Hz120 Hz
Peak brightness1,400 nits+17%1,200 nits
Screen-to-body93 %+1%92.2 %

Performance

Performance comparison: OPPO F31 5G versus OPPO K13 5G
SpecOPPO F31 5GOPPO K13 5G
ChipsetDimensity 6300Snapdragon 6 Gen 4
RAM (max)8 GB8 GB
Storage options128GB / 256GB128GB / 256GB
Storage typeUFS 2.2UFS 3.1

Camera

Camera comparison: OPPO F31 5G versus OPPO K13 5G
SpecOPPO F31 5GOPPO K13 5G
Main camera50 MP50 MP
Main aperturef/1.8f/1.8
Max video1080p@60fps4K@30fps
Front camera16 MP16 MP
OIS—No

Battery

Battery comparison: OPPO F31 5G versus OPPO K13 5G
SpecOPPO F31 5GOPPO K13 5G
Capacity7,000 mAh7,000 mAh
Wired charging80 W80 W

Design

Design comparison: OPPO F31 5G versus OPPO K13 5G
SpecOPPO F31 5GOPPO K13 5G
Weight185 g+11%208 g
Thickness8 mm+5%8.5 mm
IP ratingIP66/IP68/IP69IP65
Frame materialAluminumPlastic

Connectivity

Connectivity comparison: OPPO F31 5G versus OPPO K13 5G
SpecOPPO F31 5GOPPO K13 5G
5GYesYes
Wi-FiWi-Fi 5Wi-Fi 6
Bluetooth5.45.2
NFCNoNo
USBUSB-C 2.0USB-C
eSIMNoNo

Software

Software comparison: OPPO F31 5G versus OPPO K13 5G
SpecOPPO F31 5GOPPO K13 5G
OS at launchAndroid 15 (ColorOS 15)Android 15 (ColorOS 15)
OS update pledge2 years2 years

Audio

Audio comparison: OPPO F31 5G versus OPPO K13 5G
SpecOPPO F31 5GOPPO K13 5G
Stereo speakersYesYes
3.5mm jackNoNo

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