Galaxy M21s

Display

Screen size 6.4 in

Panel type Super AMOLED, 420 nits (peak)

Resolution 1080 x 2340 pixels, 19.5:9 ratio (~403 ppi density)

Screen protection Corning Gorilla Glass 3

Performance

Chipset Exynos 9611 (10nm)

CPU Octa-core (4x2.3 GHz Cortex-A73 & 4x1.7 GHz Cortex-A53)

GPU Mali-G72 MP3

RAM 4 GB

Storage 64 GB

Expandable storage (microSD) Yes

OS platform Android

Operating system (version) Android 10, One UI 2.5

Camera

Main rear sensor 64 MP

Main aperture f/1.8

Optical image stabilization (OIS) No

Full rear camera setup 64 MP, f/1.8, 26mm (wide), 1/1.72", 0.8µm, PDAFn 8 MP, f/2.2, 12mm (ultrawide), 1/4.0", 1.12µmn 5 MP, f/2.2, (depth)

Front camera 32 MP

Battery & Charging

Battery capacity 6,000 mAh

Wired charging speed 15 W

Wireless charging No

Reverse wireless charging No

Build

Weight 191 g

Dimensions 159.2 x 75.1 x 8.9 mm (6.27 x 2.96 x 0.35 in)

Build materials Glass front (Gorilla Glass 3), plastic back, plastic frame

Colors available Blue, Black

SIM type Single SIM (Nano-SIM) or Dual SIM (Nano-SIM, dual stand-by)

Connectivity

5G support No

Bluetooth version 5.0, A2DP, LE

Wi-Fi standard Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct

NFC No

GPS / satellite positioning Yes

Charging port USB Type-C 2.0

3.5mm headphone jack Yes

FM radio No

Release

Release date Nov 2026