Screen size
Galaxy M08Winner: 6.7"+4.5%
Galaxy M21s6.4"
Quick verdict
Galaxy M21s leads the measured specs 7-6.
Measured wins
Galaxy M08
6
spec wins
Ties
9
equal specs
Galaxy M21s
7
spec wins
Overall winner
Screen size
Technology
Galaxy M08
GSM / HSPA / LTE
Galaxy M21s
GSM / HSPA / LTE
2G bands
Galaxy M08
GSM 850 / 900 / 1800 / 1900
Galaxy M21s
GSM 850 / 900 / 1800 / 1900
3G bands
Galaxy M08
HSDPA 850 / 900 / 2100
Galaxy M21s
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
4G bands
Galaxy M08
1, 3, 5, 7, 8, 20, 28, 38, 40, 41
Resolution
Refresh rate
Peak brightness
Pixel density
CPU speed
RAM
equal specsStorage
equal specsMain camera
Front camera
Battery
equal specsWired charging
Weight
Thickness
IP rating
Wi‑Fi
Bluetooth
equal specsUSB
equal specs5G support
equal specsNFC
equal specs3.5mm jack
equal specsSD card
equal specsStereo speakers
Galaxy M21s
1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 20, 26, 28, 38, 40, 41, 66
Speed
Galaxy M08
HSPA, LTE
Galaxy M21s
HSPA, LTE
Announced
Galaxy M08
2026, October 01
Galaxy M21s
2020, November 06. Released 2020, November 06
Status
Galaxy M08
Released Oct 2026
Galaxy M21s
Discontinued
Dimensions
Galaxy M08
167.4 x 77.4 x 8 mm (6.59 x 3.05 x 0.31 in)
Galaxy M21s
159.2 x 75.1 x 8.9 mm (6.27 x 2.96 x 0.35 in)
Weight
Galaxy M08
197 g (6.95 oz)
Galaxy M21s
191 g (6.74 oz)
Build
Galaxy M08
Glass front, plastic back, plastic frame
Galaxy M21s
Glass front (Gorilla Glass 3), plastic back, plastic frame
SIM
Galaxy M08
Nano-SIM + Nano-SIM
Galaxy M21s
· Nano-SIM· Nano-SIM + Nano-SIM
Other
Galaxy M08
IP64 dust tight and water resistant (water splashes)
Galaxy M21s
-
Type
Galaxy M08
PLS LCD, 90Hz
Galaxy M21s
Super AMOLED, 420 nits (peak)
Size
Galaxy M08
6.7 inches, 108.4 cm2 (~83.6% screen-to-body ratio)
Galaxy M21s
6.4 inches, 100.5 cm2 (~84.1% screen-to-body ratio)
Resolution
Galaxy M08
720 x 1600 pixels, 20:9 ratio (~262 ppi density)
Galaxy M21s
1080 x 2340 pixels, 19.5:9 ratio (~403 ppi density)
Protection
Galaxy M08
-
Galaxy M21s
Corning Gorilla Glass 3
OS
Galaxy M08
Android 17, up to 6 major OS updates, One UI 9
Galaxy M21s
Android 10, One UI 2.5
Chipset
Galaxy M08
Mediatek Helio G99+ (6 nm)
Galaxy M21s
Exynos 9611 (10 nm)
CPU
Galaxy M08
Octa-core (2x2.2 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55)
Galaxy M21s
Octa-core (4x2.3 GHz Cortex-A73 & 4x1.7 GHz Cortex-A53)
GPU
Galaxy M08
Mali-G57 MC2
Galaxy M21s
Mali-G72 MP3
Card slot
Galaxy M08
microSDXC (dedicated slot)
Galaxy M21s
microSDXC (dedicated slot)
Internal
Galaxy M08
64GB 4GB RAM
Galaxy M21s
64GB 4GB RAM, 128GB 6GB RAM
Other
Galaxy M08
-
Galaxy M21s
eMMC 5.1
Dual
Galaxy M08
50 MP, f/1.8, (wide), 1/2.76", 0.64µm, PDAF Auxiliary lens
Galaxy M21s
-
Features
Galaxy M08
LED flash
Galaxy M21s
LED flash, panorama, HDR
Video
Galaxy M08
1080p@30/60fps
Galaxy M21s
4K@30fps, 1080p@30fps, gyro-EIS
Triple
Galaxy M08
-
Galaxy M21s
64 MP, f/1.8, 26mm (wide), 1/1.72", 0.8µm, PDAF 8 MP, f/2.2, 12mm (ultrawide), 1/4.0", 1.12µm Auxiliary lens
Single
Galaxy M08
8 MP, f/2.0, (wide), 1/4.0", 1.12µm
Galaxy M21s
32 MP, f/2.0, 26mm (wide), 1/2.8", 0.8µm
Video
Galaxy M08
Yes
Galaxy M21s
1080p@30fps
Features
Galaxy M08
-
Galaxy M21s
HDR
Loudspeaker
Galaxy M08
Yes
Galaxy M21s
Yes
3.5mm jack
Galaxy M08
Yes
Galaxy M21s
Yes
WLAN
Galaxy M08
Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct
Galaxy M21s
Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct
Bluetooth
Galaxy M08
5.3, A2DP, LE
Galaxy M21s
5.0, A2DP, LE
Positioning
Galaxy M08
GPS, GLONASS, GALILEO, BDS
Galaxy M21s
GPS, GLONASS, GALILEO, BDS
NFC
Galaxy M08
No
Galaxy M21s
No
Radio
Galaxy M08
FM radio
Galaxy M21s
FM radio
USB
Galaxy M08
USB Type-C 2.0
Galaxy M21s
USB Type-C 2.0
Sensors
Galaxy M08
Fingerprint (side-mounted), accelerometer, proximity
Galaxy M21s
Fingerprint (rear-mounted), accelerometer, gyro, proximity, compass
Type
Galaxy M08
6000 mAh
Galaxy M21s
Li-Po 6000 mAh
Charging
Galaxy M08
25W wired
Galaxy M21s
15W wired
Colors
Galaxy M08
Silver
Galaxy M21s
Blue, Black
Models
Galaxy M08
SM-M085F, SM-M085F/DS
Galaxy M21s
SM-F415F, SM-F415F/DS
SAR
Galaxy M08
0.62 W/kg (head)
Galaxy M21s
0.38 W/kg (head)
SAR EU
Galaxy M08
0.75 W/kg (head) 1.29 W/kg (body)
Galaxy M21s
0.48 W/kg (head) 1.13 W/kg (body)
Price
Galaxy M08
About 160 EUR
Galaxy M21s
About 230 EUR