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InnoReviews

OPPO F31 Pro 5G vs OPPO K13x 5G

WINNER
OPPO F31 Pro 5G
55.4Inno Score
VS
OPPO K13x 5G
37.3Inno Score
46.7Performance21.8
55.2Display45.2
45.9Camera29
79.8Battery61.9
52Features36
9 spec wins — OPPO F31 Pro 5G3 spec wins — OPPO K13x 5G

InnoReviews verdict

OPPO F31 Pro 5G wins this phone face-off, 55.4 to 37.3, pulling ahead mainly in performance (+25) and battery (+18). OPPO K13x 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 Pro 5G

  • Stronger performance score: 47 vs 22
  • Stronger display score: 55 vs 45
  • Stronger camera score: 46 vs 29
  • Stronger battery score: 80 vs 62
  • Stronger features score: 52 vs 36

Reasons to pick the OPPO K13x 5G

  • Has 3.5mm jack — the other doesn't

Display

Display comparison: OPPO F31 Pro 5G versus OPPO K13x 5G
SpecOPPO F31 Pro 5GOPPO K13x 5G
Screen size6.57 ″6.67 ″+2%
Panel typeAMOLEDIPS LCD
Resolution2372x10801604x720
Pixel density397 ppi+50%264 ppi
Refresh rate120 Hz120 Hz
Peak brightness1,400 nits+40%1,000 nits
Screen-to-body93 %+3%89.9 %

Performance

Performance comparison: OPPO F31 Pro 5G versus OPPO K13x 5G
SpecOPPO F31 Pro 5GOPPO K13x 5G
ChipsetDimensity 7300-EnergyMediaTek Dimensity 6300
Geekbench 6 (single)—785Bottom 19%
Geekbench 6 (multi)—1,984Bottom 16%
RAM (max)12 GB+50%8 GB
Storage options128GB / 256GB128GB
Storage typeUFS 3.1UFS 2.2

Camera

Camera comparison: OPPO F31 Pro 5G versus OPPO K13x 5G
SpecOPPO F31 Pro 5GOPPO K13x 5G
Main camera50 MP50 MP
Main aperturef/1.8f/1.8
Max video4K@30fps1080p@60fps
Front camera32 MP+300%8 MP
OISYesNo

Battery

Battery comparison: OPPO F31 Pro 5G versus OPPO K13x 5G
SpecOPPO F31 Pro 5GOPPO K13x 5G
Capacity7,000 mAh+17%6,000 mAh
Wired charging80 W+78%45 W

Design

Design comparison: OPPO F31 Pro 5G versus OPPO K13x 5G
SpecOPPO F31 Pro 5GOPPO K13x 5G
Weight190 g+2%194 g
Thickness8 mm7.9 mm+1%
IP ratingIP66/IP68/IP69IP65
Frame materialAluminumPlastic

Connectivity

Connectivity comparison: OPPO F31 Pro 5G versus OPPO K13x 5G
SpecOPPO F31 Pro 5GOPPO K13x 5G
5GYesYes
Wi-FiWi-Fi 6Wi-Fi 5
Bluetooth5.45.4
USBUSB-C 2.0USB-C
eSIMNo—

Software

Software comparison: OPPO F31 Pro 5G versus OPPO K13x 5G
SpecOPPO F31 Pro 5GOPPO K13x 5G
OS at launchAndroid 15 (ColorOS 15)Android 15 (ColorOS 15)
OS update pledge2 years2 years

Audio

Audio comparison: OPPO F31 Pro 5G versus OPPO K13x 5G
SpecOPPO F31 Pro 5GOPPO K13x 5G
Stereo speakersYes—
3.5mm jackNoYes

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