Galaxy M21 review: 6000 mAh AMOLED value phone for online buyers.
Endurance on a tighter budget.
M21 brought the M31's 6000 mAh AMOLED formula to $209 with a slightly trimmed camera. It became a go-to budget endurance pick across India and Southeast Asia.
01Display
80/100At 80/100 this is one of the strongest display showings among budget phones of 2020 — 17 points above the cohort average.
02Camera
64/100At 64/100 this is one of the strongest camera showings among budget phones of 2020 — 8 points above the cohort average.
03Performance
62/100At 62/100 this is one of the strongest performance showings among budget phones of 2020 — 12 points above the cohort average.
04Battery
88/100At 88/100 this is one of the strongest battery showings among budget phones of 2020 — 10 points above the cohort average.
05Build
62/10062/100 puts it above the 60-point average for budget phones of 2020.
- 6000 mAh + AMOLED at just $209
- Solid 48 MP main
- microSD + 3.5 mm jack
- Exynos 9611 carried over again
- 15W charging slow
- Plastic build feels cheap
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 118-phone cohort of budget devices released around the same time. We don't publish invented lab anecdotes. Spot an error? .