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Samsung Galaxy M21 vs Samsung Galaxy S8 Plus vs Samsung Galaxy S8

Key Feature Comparison

6.8

Samsung Galaxy M21

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7.3

Samsung Galaxy S8 Plus

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7

Samsung Galaxy S8

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At a Glance

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Octa core (2.3 GHz, Quad core, Cortex A73 + 1.7 GHz, Quad core, Cortex A53)

Samsung Exynos 9 Octa 9611, Mali-G72 MP3

Octa core (2.3 GHz, Quad core, M2 Mongoose + 1.7 GHz, Quad core, Cortex A53)

Samsung Exynos 9 Octa 8895, Mali-G71 MP20

Octa core (2.3 GHz, Quad core, M2 Mongoose + 1.7 GHz, Quad core, Cortex A53)

Samsung Exynos 9 Octa 8895, Mali-G71 MP20

6000 mAh

Li-ion, Fast, 15W

3500 mAh

Li-ion, Fast, 15W

3000 mAh

Li-ion, Fast

6.4 inches

403 ppi, FHD

6.2 inches

531 ppi, 2K

5.8 inches

568 ppi, 2K

Triple, 48MP + 8MP + 5MP

3840x2160 @ 30 fps, 1920x1080 @ 30 fps

Single, 12MP

3840x2160 @ 30 fps, 1920x1080 @ 60 fps, 1280x720 @ 120 fps

Single, 12MP

3840x2160 @ 30 fps, 1920x1080 @ 60 fps, 1280x720 @ 120 fps

4G

Dual SIM, GSM+GSM

4G

Dual SIM, GSM+GSM

4G

Dual SIM, GSM+GSM

Detailed Specs

Screen Size

6.4 inches
6.2 inches
5.8 inches

Screen Type

Super AMOLED
Super AMOLED
Super AMOLED

Screen Resolution

1080 x 2340 pixels
1440 x 2960 pixels
1440 x 2960 pixels

Pixel Density

403 ppi
531 ppi
568 ppi

Aspect Ratio

19.5:9
18.5:9
18.5:9

Screen Protection

Gorilla Glass 3
Gorilla Glass 5
Gorilla Glass 5

Screen to Body Ratio

91%
83.70%
84.57%

Screen Design

Waterdrop notch
Bezel-less
Bezel-less

Screen Quality

FHD
2K
2K

Peak Brightness

420 nits
-
-

Phone Variants

4GB 64GB, 6GB 128GB
4GB 64GB, 6GB 128GB
4GB 64GB

Expandable Storage

Yes
Yes
Yes

RAM Type

LPDDR4X
LPDDR4
LPDDR4

Storage Type

UFS 2.1
UFS 2.0
-

Expandable Storage Capacity

Yes, 512 GB
Yes, 256 GB
Yes, 256 GB

OTG Support

Yes
Yes
Yes

Sensors

Light sensor, Proximity sensor, Accelerometer, Gyroscope
Light sensor, Proximity sensor, Accelerometer, Barometer, Compass, Gyroscope
Light sensor, Proximity sensor, Accelerometer, Barometer, Compass, Gyroscope

Operating System

Android v10 (Q)
Android v7.0 (Nougat)
Android v7.0 (Nougat)

GPU

Mali-G72 MP3
Mali-G71 MP20
Mali-G71 MP20

Chipset

Samsung Exynos 9 Octa 9611
Samsung Exynos 9 Octa 8895
Samsung Exynos 9 Octa 8895

CPU

Octa core (2.3 GHz, Quad core, Cortex A73 + 1.7 GHz, Quad core, Cortex A53)
Octa core (2.3 GHz, Quad core, M2 Mongoose + 1.7 GHz, Quad core, Cortex A53)
Octa core (2.3 GHz, Quad core, M2 Mongoose + 1.7 GHz, Quad core, Cortex A53)

Custom User Interface

Samsung One UI
-
-

Clock Speed

2.3 GHz
2.3 GHz
2.3 GHz

Architecture

64 bit
64 bit
64 bit

Process Technology

10 nm
10 nm
-

Battery Capacity

6000 mAh
3500 mAh
3000 mAh

Battery Removable

No
No
No

Battery Type

Li-ion
Li-ion
Li-ion

Charger Type

Fast, 15W
Fast, 15W
Fast

USB Type-C

Yes
Yes
Yes

Fast Charging

Yes
Yes
Yes

Wireless Charging

-
Yes
Yes

Announced On

18-Mar-20
5-May-17
5-Mar-17

Market Status

Available
Out of Stock
Available

Brand

Samsung
Samsung
Samsung

Model Number

SM-M215FZKDINS
SM-G955FZKDINS
SM-G950FZKDINS

Price Status

Confirmed
Confirmed
Confirmed

Price

Rs. 13,499
Rs. 54,099
Rs. 29,208

GPS

Yes A-GPS, Glonass
Yes A-GPS, Glonass
Yes A-GPS, Glonass

Audio Features

Dolby Atmos
32-bit/384kHz audioActive noise cancellation with dedicated mic
32-bit/384kHz audioActive noise cancellation with dedicated mic

NFC

No
Yes
Yes

Network Support

4G
4G
4G

Bluetooth

Yes
Yes
Yes

3.5mm Audio Jack

Yes
Yes
Yes

SIM Size

SIM1: Nano, SIM2: Nano
SIM1: Nano, SIM2: Nano (Hybrid)
SIM1: Nano, SIM2: Nano (Hybrid)

Wi-Fi

Yes, Wi-Fi 802.11, ac/b/g/n/n 5GHz
Yes, Wi-Fi 802.11, a/ac/b/g/n/n 5GHz, MIMO
Yes, Wi-Fi 802.11, a/ac/b/g/n/n 5GHz, MIMO

Bluetooth Type

v5.0
v5.0
v5.0

Audio Jack

3.5 mm
3.5 mm
3.5 mm

SIM Slot(s)

Dual SIM, GSM+GSM
Dual SIM, GSM+GSM
Dual SIM, GSM+GSM

eSIM

No
No
No

Wi-Fi Features

Wi-Fi Direct, Mobile Hotspot
Wi-Fi Direct, Mobile Hotspot
Mobile Hotspot

VoLTE

Yes
Yes
Yes

SIM 1 Bands

4G Bands: TD-LTE 2600(band 38) / 2300(band 40) / 2500(band 41), FD-LTE 2100(band 1) / 1800(band 3) / 2600(band 7) / 900(band 8) / 850(band 5) / 800(band 20), 3G Bands: UMTS 1900 / 2100 / 850 / 900 MHz, 2G Bands: GSM 1800 / 1900 / 850 / 900 MHz, GPRS:...
4G Bands: TD-LTE 2300(band 40), FD-LTE 2100(band 1) / 1800(band 3) / 2600(band 7) / 900(band 8) / 700(band 28) / 1900(band 2) / 1700(band 4) / 850(band 5) / 700(band 17) / 800(band 20), 3G Bands: UMTS 1900 / 2100 / 850 / 900 MHz, 2G Bands: GSM 1800 /...
4G Bands: TD-LTE 2300(band 40), FD-LTE 2100(band 1) / 1800(band 3) / 2600(band 7) / 900(band 8) / 700(band 28) / 1900(band 2) / 1700(band 4) / 850(band 5) / 700(band 17) / 800(band 20), 3G Bands: UMTS 1900 / 2100 / 850 / 900 MHz, 2G Bands: GSM 1800 /...

SIM 2 Bands

4G Bands: TD-LTE 2600(band 38) / 2300(band 40) / 2500(band 41), FD-LTE 2100(band 1) / 1800(band 3) / 2600(band 7) / 900(band 8) / 850(band 5) / 800(band 20), 3G Bands: UMTS 1900 / 2100 / 850 / 900 MHz, 2G Bands: GSM 1800 / 1900 / 850 / 900 MHz, GPRS:...
4G Bands: TD-LTE 2300(band 40), FD-LTE 2100(band 1) / 1800(band 3) / 2600(band 7) / 900(band 8) / 700(band 28) / 1900(band 2) / 1700(band 4) / 850(band 5) / 700(band 17) / 800(band 20), 3G Bands: UMTS 1900 / 2100 / 850 / 900 MHz, 2G Bands: GSM 1800 /...
4G Bands: TD-LTE 2300(band 40), FD-LTE 2100(band 1) / 1800(band 3) / 2600(band 7) / 900(band 8) / 700(band 28) / 1900(band 2) / 1700(band 4) / 850(band 5) / 700(band 17) / 800(band 20), 3G Bands: UMTS 1900 / 2100 / 850 / 900 MHz, 2G Bands: GSM 1800 /...

FM Radio

-
No
No

Front Video Recording

1920x1080 @ 30 fps
1920x1080 @ 30 fps
1920x1080 @ 30 fps

Front Camera Features

HDR
Wide Angle Selfie
Wide Angle Selfie

Front Camera Setup

Single, 20MP
Single, 8MP
Single, 8MP

Front Camera 1 Resolution

20 MP
8 MP
8 MP

Front Camera 1 Type

f/2.2 Primary Camera
f/1.7, Primary Camera
f/1.7, Wide Angle Primary Camera

Front Camera 1 Lens

26 mm focal length
25 mm focal length, 3.6" sensor size, 1.22 micrometre pixel size
25 mm focal length, 3.6" sensor size, 1.22 micrometre pixel size

Front Sensor

CMOS
-
-

Front Aperture

f/2.2
f/1.7
f/1.7

Front Flash

No
Yes, Screen flash
Yes, Screen flash

Weight

188 grams
173 grams
155 grams

Colors

Midnight Blue, Raven Black
Midnight Black, Orchid Gray, Coral Blue, Arctic Silver, Maple Gold
Midnight Black, Orchid Gray, Coral Blue, Arctic Silver, Maple Gold, Burgundy Red

Build

Back: Plastic
Back: Gorilla Glass
Case: Metal, Back: Metal

Dimensions

159 x 75.1 x 8.9 mm
159.5 x 73.4 x 8.1 mm
148.9 x 68.1 x 8.0 mm

SAR Value

Head: 0.468 W/kg
-
-

OIS

No
Yes
Yes

Rear Flash

Yes, LED Flash
Yes, Dual-color LED Flash
Yes, Dual-color LED Flash

Rear Video Recording

3840x2160 @ 30 fps, 1920x1080 @ 30 fps
3840x2160 @ 30 fps, 1920x1080 @ 60 fps, 1280x720 @ 120 fps
3840x2160 @ 30 fps, 1920x1080 @ 60 fps, 1280x720 @ 120 fps

Rear Camera Features

4 x Digital Zoom, Auto Flash, Face detection, Touch to focus
8 x Digital Zoom, Auto Flash, Digital image stabilization, Face detection, Touch to focus
8 x Digital Zoom, Auto Flash, Digital image stabilization, Face detection, Touch to focus

Rear Camera Setup

Triple, 48MP + 8MP + 5MP
Single, 12MP
Single, 12MP

Rear Camera 1 Resolution

48 MP
12 MP
12 MP

Rear Camera 1 Type

f/2.0 (upto 4x Digital Zoom) Primary Camera
f/1.7, Wide Angle, Primary Camera
f/1.7 (upto 8x Digital Zoom), Wide Angle Primary Camera

Rear Camera 1 Lens

26 mm focal length, 2" sensor size, 0.8 micrometre pixel size
26 mm focal length, 2.55" sensor size, 1.4 micrometre pixel size
26 mm focal length, 2.55" sensor size, 1.4 micrometre pixel size

Rear Camera 2 Resolution

8 MP
-
-

Rear Camera 2 Type

f/2.2, Wide Angle, Ultra-Wide Angle Camera
-
-

Rear Camera 2 Lens

12 mm focal length, 4.0" sensor size, 1.12 micrometre pixel size
-
-

Rear Camera 3 Resolution

5 MP
-
-

Rear Camera 3 Type

f/2.2, Depth Camera
-
-

Rear Sensor

CMOS image sensor
Exmor-RS CMOS Sensor
Exmor-RS CMOS Sensor

Rear Aperture

f/2.0
f/1.7
f/1.7

Fingerprint Scanner

Yes
Yes
Yes

Fingerprint Scanner Position

Rear
Rear
Rear

Face Unlock

Yes
Yes
Yes
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