Phone Comparison - Samsung Galaxy A21 vs Samsung Galaxy A12 vs Samsung Galaxy S21 5G

general General Info

Manufacturer Samsung Samsung Samsung
Announced 2020, April 8 2020, November 24 2021, January 14
Status Coming soon. Exp. release 2020, April Coming Soon - January 2021 Coming soon. Exp. release 2021, January 29
Price - Rs. 12,999 ($0.00) [Similarly Priced] Rs. 69,999 ($799.99) [Similarly Priced]
Colors Various Black, White, Blue, Red Phantom Gray, Phantom White, Phantom Violet, Phantom Pink
Form Factor Candybar Candybar Candybar
Dimension - 164 x 75.8 x 8.9 mm
(6.46 x 2.98 x 0.35 in)
151.7 x 71.2 x 7.9 mm
(5.97 x 2.8 x 0.31 in)
Weight - 205 g (7.23 oz) 169 g (5.96 oz)
SIM Type Single SIM (Nano-SIM), Dual SIM (Nano-SIM, dual stand-by) Single SIM (Nano-SIM), 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 only) GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (dual-SIM only) 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 / 1700(AWS) / 1900 / 2100
HSDPA 850 / 900 / 1900 / 2100 HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
4G Network LTE LTE (unspecified) LTE
5G Network - - SA/NSA/Sub6/mmWave
Messaging
Build Features - Fingerprint Sensor
Glass front, plastic back, plastic frame
- Fingerprint Sensor (side-mounted)
- 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 10.0 Android 10 Android 11
User Interface One UI 2.0 - One UI 3.1
Processor Octa-core (4x2.35 GHz Cortex-A53 & 4x1.8 GHz Cortex-A53), Mediatek MT6765 Helio P35 (12nm) Octa-core (2.3 GHz, 1.8 GHz) 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 PowerVR GE8320 - Mali-G78 MP14 - International / Adreno 660 - USA/China/Korea
RAM 3 GB 4 GB 8 GB
Internal Memory 64 GB 128 GB 256 GB
External Memory microSDXC (dedicated slot) microSDXC microSDXC (uses shared SIM slot)

display Display

Type HD+ Super AMOLED Capacitive Touchscreen HD+ TFT display FHD+ Dynamic AMOLED 2X Display
120Hz Refresh Rate
HDR10+
1300 nits (peak)
Corning Gorilla Glass Victus
Always-on display
Colors 16M colors 16M Colour 16M Colour
Size 6.5 inches 6.5 inches 6.2 inches
Resolution 720 x 1600 pixels (270 ppi) 720 x 1560 pixels (264 ppi) 1080 x 2400 pixels (424 ppi)
Screen-to-Body Ratio - 83.64% 86.12%
Multi-Touch yes yes yes

multimedia Multimedia

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

camera Camera

Rear Camera 16 MP + 8 MP + 2 MP + 2 MP 48 MP + 5 MP + 2 MP + 2 MP 12 MP + 64 MP + 12 MP
Flash No LED flash LED Flash
Features 16 MP, f/1.9, 28mm (wide), AF
8 MP, f/2.2, 12mm (ultrawide)
2 MP, (macro)
2 MP, (depth)
panorama, HDR
48 MP, f/2.0, (wide), AF
5 MP, f/2.2, 115˚ (ultrawide)
2 MP, f/2.4, (macro)
2 MP, f/2.4, (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 1080p@30fps 8K@24/30fps, 4K@30/60fps, 1080p@30/60/240fps, 720p@960fps, HDR10+, stereo sound rec., gyro-EIS & OIS
Front Camera 13 MP
HDR
1080p@30fps [Similar]
8 MP, f/2.2
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 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps HSPA 42.2/5.76 Mbps, LTE-A (CA), 5G
Bluetooth 5.0, A2DP, LE Yes 5.0, A2DP, LE
Wi-Fi Wi-Fi 802.11 b/g/n, Wi-Fi Direct, hotspot Yes Wi-Fi 802.11 a/b/g/n/ac/6, dual-band, Wi-Fi Direct, hotspot
USB 2.0, Type-C 1.0 reversible connector, USB On-The-Go USB Type-C 2.0 USB Type-C 3.2, USB On-The-Go
GPS Yes, with A-GPS, GLONASS, BDS Yes, with A-GPS, GLONASS, GALILEO, BDS Yes, with A-GPS, GLONASS, BDS, GALILEO
Browser Yes Yes Yes

memory User Memory

Internal 64 GB, 3 GB RAM eMMC 5.1 128 GB, 4 GB RAM or 64 GB, 4 GB RAM or 64 GB, 3 GB RAM or 32 GB, 3 GB RAM 256 GB, 8 GB RAM or 128 GB, 8 GB RAM UFS 3.1
Expandable Storage microSDXC (dedicated slot) microSDXC microSDXC (uses shared SIM slot)
USB OTG Supported Not Supported Supported

Apps Sensors

Fingerprint fingerprint supported fingerprint supported fingerprint supported
Proximity Sensor proximity sensor present proximity sensor not present proximity sensor present
Accelerometer Sensor accelerometer sensor present accelerometer sensor not present accelerometer sensor present
Magnetic-Field Sensor (Compass) magnetic field sensor present magnetic field sensor not present magnetic field sensor present
Gyroscope Sensor gyroscope sensor present gyroscope sensor not 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 5000 mAh 4000 mAh
Stand by - - -
Talk Time - - -