Phone Comparison - Samsung Galaxy A20s vs Samsung Galaxy M21 vs Samsung Galaxy S21 5G

general General Info

Manufacturer Samsung Samsung Samsung
Announced September 2019 2020, March 18 2021, January 14
Status Coming Soon - October 2019 Coming soon. Exp. release 2020, March 23 Coming soon. Exp. release 2021, January 29
Price Rs. 11,999 ($0.00) [Similarly Priced] Rs. 12,999 ($0.00) [Similarly Priced] Rs. 69,999 ($799.99) [Similarly Priced]
Colors Green, Black, Red Midnight Blue, Raven Black Phantom Gray, Phantom White, Phantom Violet, Phantom Pink
Form Factor Candybar Candybar Candybar
Dimension 163.3 x 77.5 x 8 mm
(6.43 x 3.05 x 0.31 in)
159 x 75.1 x 8.9 mm
(6.26 x 2.96 x 0.35 in)
151.7 x 71.2 x 7.9 mm
(5.97 x 2.8 x 0.31 in)
Weight 183 g (6.46 oz) 188 g (6.63 oz) 169 g (5.96 oz)
SIM Type Single SIM (Nano-SIM), Dual SIM (Nano-SIM, dual stand-by) Dual SIM (Nano-SIM, dual stand-by) Single SIM (Nano-SIM and/or eSIM), Hybrid Dual SIM (Nano-SIM, dual stand-by)
2G Network GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (dual-SIM model only) GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (Dual SIM model only)
CDMA2000 1xEV-DO
3G Network HSDPA 850 / 900 / 1900 / 2100 HSDPA 850 / 900 / 1900 / 2100 HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
4G Network LTE band 1(2100), 3(1800), 5(850), 7(2600), 8(900), 20(800), 38(2600), 40(2300), 41(2500) LTE band 1(2100), 3(1800), 5(850), 7(2600), 8(900), 20(800), 38(2600), 40(2300), 41(2500) LTE
5G Network - - SA/NSA/Sub6/mmWave
Messaging
Build Features - Fingerprint Sensor
- Fingerprint Sensor
- Fingerprint Sensor (under display, ultrasonic)
Samsung Pay (Visa, MasterCard certified)
IP68 dust/water resistant (up to 1.5m for 30 mins)
Samsung DeX, Samsung Wireless DeX (desktop experience support) ANT+

hardware Hardware and OS

OS Android 9.0 (Pie) Android 10.0 Android 11
User Interface One UI One UI 2.0 One UI 3.1
Processor Octa-core 1.8 GHz Cortex-A53, Qualcomm SDM450 Snapdragon 450 (14 nm) Octa-core (4x2.3 GHz Cortex-A73 & 4x1.7 GHz Cortex-A53), Exynos 9611 (10nm) Octa-core (1x2.9 GHz Cortex-X1 & 3x2.80 GHz Cortex-A78 & 4x2.2 GHz Cortex-A55) - International / Octa-core (1x2.84 GHz Kryo 680 & 3x2.42 GHz Kryo 680 & 4x1.80 GHz Kryo 680 - USA/China/Korea, Exynos 2100 - International / Qualcomm Snapdragon 888 - USA/China/Korea
GPU Adreno 506 Mali-G72 MP3 Mali-G78 MP14 - International / Adreno 660 - USA/China/Korea
RAM 4 GB 6 GB 8 GB
Internal Memory 64 GB 128 GB 256 GB
External Memory microSD, up to 512 GB (dedicated slot) microSDXC (dedicated slot) microSDXC (uses shared SIM slot)

display Display

Type HD+ IPS LCD Capacitive Touchscreen Super AMOLED Capacitive Touchscreen
Corning Gorilla Glass 3
420 nits max brightness (advertised)
FHD+ Dynamic AMOLED 2X Display
120Hz Refresh Rate
HDR10+
1300 nits (peak)
Corning Gorilla Glass Victus
Always-on display
Colors 16M colors 16M colors 16M Colour
Size 6.4 inches 6.4 inches 6.2 inches
Resolution 720 x 1560 pixels (268 ppi) 1080 x 2340 pixels (403 ppi) 1080 x 2400 pixels (424 ppi)
Screen-to-Body Ratio 79.72% 84.07% 86.12%
Multi-Touch yes yes yes

multimedia Multimedia

3.5mm Jack yes yes no
Radio FM radio FM radio, RDS, recording FM radio (Snapdragon model only; market/operator dependent)
Games Yes + Downloadable Yes + Downloadable Yes + Downloadable
Loud Speaker yes yes

camera Camera

Rear Camera 13 MP + 8 MP + 5 MP 48 MP + 8 MP + 5 MP 12 MP + 64 MP + 12 MP
Flash LED Flash LED Flash LED Flash
Features 13 MP, f/1.8, PDAF
8 MP, f/2.2, 13mm (ultrawide)
5 MP, f/2.2, depth sensor
Panorama, HDR
48 MP, f/2.0, 26mm (wide), 1/2.0", 0.8µm, PDAF
8 MP, f/2.2, 12mm (ultrawide), 1/4.0", 1.12µm
5 MP, f/2.2, (depth)
Panorama, HDR
12 MP, f/1.8, 26mm (wide), 1/1.76", 1.8µm, Dual Pixel PDAF, OIS
64 MP, f/2.0, 29mm (telephoto), 1/1.72", 0.8µm, PDAF, OIS, 1.1x optical zoom, 3x hybrid zoom
12 MP, f/2.2, 13mm (ultrawide), 1.4µm, Super Steady video
Auto-HDR, Panorama
Video 1080p@30fps 2160p@30fps, 1080p@30fps, gyro-EIS 8K@24/30fps, 4K@30/60fps, 1080p@30/60/240fps, 720p@960fps, HDR10+, stereo sound rec., gyro-EIS & OIS
Front Camera 8 MP, f/2.0, 1/4", 1.12µm, 1080p@30fps [Similar] 20 MP, f/2.0, (wide), 1/2.8", 1.0μm
HDR
1080p@30fps [Similar]
10 MP, f/2.2, 26mm (wide), 1/3.2", 1.22µm, Dual Pixel PDAF, Dual video call, Auto-HDR, 4K@30/60fps, 1080p@30fps [Similar]

connectivity Connectivity and Data Rate

GPRS Yes Yes Yes
Edge Yes Yes Yes
3G HSPA, LTE-A HSPA, LTE-A HSPA 42.2/5.76 Mbps, LTE-A (CA), 5G
Bluetooth 5.0, A2DP, LE 5.0, A2DP, LE 5.0, A2DP, LE
Wi-Fi Wi-Fi 802.11 b/g/n, Wi-Fi Direct, hotspot Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot Wi-Fi 802.11 a/b/g/n/ac/6, dual-band, Wi-Fi Direct, hotspot
USB microUSB 2.0 2.0, Type-C 1.0 reversible connector USB Type-C 3.2, USB On-The-Go
GPS Yes, with A-GPS, GLONASS, BDS Yes, with A-GPS, GLONASS, BDS Yes, with A-GPS, GLONASS, BDS, GALILEO
Browser Yes Yes Yes

memory User Memory

Internal 64 GB, 4 GB RAM or 32 GB, 3 GB RAM 128 GB, 6 GB RAM or 64 GB, 4 GB RAM (UFS 2.1) 256 GB, 8 GB RAM or 128 GB, 8 GB RAM UFS 3.1
Expandable Storage microSD, up to 512 GB (dedicated slot) microSDXC (dedicated slot) microSDXC (uses shared SIM slot)
USB OTG Supported Supported Supported

Apps Sensors

Fingerprint fingerprint supported fingerprint supported fingerprint supported
Proximity Sensor proximity sensor present proximity sensor present proximity sensor present
Accelerometer Sensor accelerometer sensor present accelerometer sensor present accelerometer sensor present
Magnetic-Field Sensor (Compass) magnetic field sensor present magnetic field sensor present magnetic field sensor present
Gyroscope Sensor gyroscope sensor present gyroscope sensor present gyroscope sensor present
Barometer Sensor barometer sensor not present barometer sensor not present barometer sensor present
NFC NFC not supported NFC not supported NFC supported

battery Battery

Type Non-removable Li-Po Battery
Fast battery charging 15W
Non-removable Li-Po Battery
Fast battery charging 15W
Non-removable Li-Po Battery
Fast battery charging 25W
USB Power Delivery 3.0
Fast Qi/PMA wireless charging 15W
Power bank/Reverse wireless charging 4.5W
Capacity 4000 mAh 6000 mAh 4000 mAh
Stand by - - -
Talk Time - - -