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SpecEagle review · Oppo

Oppo A31 review: Mid-budget Oppo with 5,000 mAh battery and triple camera.

SpecEagle Editorial·Mar 2020·$199
Overall
50/100
Class rank
#2 of 5
Tier
Budget
Buy?
Look elsewhere
The verdict, up front

A genuinely cheap Oppo with big battery basics.

A31 is a frill-free budget Oppo that prioritises battery and the basics. Helio P35 limits anything beyond messaging and social.

01Display

56/100

56/100 trails the 59-point cohort average for budget phones of 2020.

TypeIPS LCD
Size6.5 inches
Resolution1,600 × 720 px

02Camera

50/100

50/100 — right at the average for budget phones of 2020.

Main12 MP, f/1.8
Macro2 MP
Depth2 MP
Selfie8 MP

03Performance

42/100

42/100 — right at the average for budget phones of 2020.

ChipsetMediaTek Helio P35 (12 nm)
RAM3 / 4 GB
Storage64 / 128 GB + microSD

04Battery

70/100

70/100 trails the 75-point cohort average for budget phones of 2020.

Capacity4,230 mAh
Wired10 W

05Build

60/100

60/100 puts it above the 58-point average for budget phones of 2020.

06Value

64/100

64/100 puts it above the 62-point average for budget phones of 2020.

What works
  • Huge battery at sub-$200.
  • Triple-cam at entry price.
  • Headphone jack + microSD.
  • Light at 180 g.
What doesn't
  • HD+ resolution only.
  • Helio P35 is slow.
  • 10 W charging.
  • ColorOS 6 dated.

How this review is built: every section score, spec row and comparison on this page comes from SpecEagle's tracked catalogue — scores weight measured specs against the 5-phone cohort of budget devices released around the same time. We don't publish invented lab anecdotes. Spot an error? .