SpecEagle
SpecEagle review · Samsung

Galaxy S21+ review: The 2021 mid-flagship — glass back, bigger battery than the S21.

SpecEagle Editorial·Jan 2021·$999
Overall
79/100
Class rank
#128 of 206
Tier
Flagship
Buy?
At the right price
The verdict, up front

The premium-feeling middle S21.

Galaxy S21+ added a glass back and bigger battery over the S21. A solid used Android flagship now past its update window.

01Display

84/100

84/100 — right at the average for flagship phones of 2021.

TypeDynamic AMOLED 2X, 120 Hz
Size6.7 inches
Resolution2,400 × 1,080 px

02Camera

78/100

78/100 — right at the average for flagship phones of 2021.

Main12 MP, f/1.8, OIS
Ultrawide12 MP
Telephoto64 MP, 3× hybrid
Selfie10 MP

03Performance

81/100

81/100 trails the 83-point cohort average for flagship phones of 2021.

ChipsetSnapdragon 888 / Exynos 2100 (5 nm)
RAM8 GB
Storage128 / 256 GB

04Battery

78/100

78/100 — right at the average for flagship phones of 2021.

Capacity4,800 mAh
Wired25 W
Wireless15 W

05Build

82/100

82/100 — right at the average for flagship phones of 2021.

06Value

74/100

74/100 — right at the average for flagship phones of 2021.

What works
  • Glass back vs the S21's plastic.
  • Bigger 4,800 mAh battery.
  • 120 Hz + IP68.
  • Wireless charging.
What doesn't
  • SD888 / Exynos 2100 thermals.
  • 64 MP hybrid zoom, not optical.
  • No microSD.
  • Support ended 2024.
Cross-shop it against
iQOO 10 Pro
$900 · score 88/100

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 206-phone cohort of flagship devices released around the same time. We don't publish invented lab anecdotes. Spot an error? .