Samsung Galaxy A51 vs Samsung Galaxy A21 vs Samsung Galaxy A21s

Price Comparison (India)

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Manufacturer
Samsung	Samsung	Samsung
Announced
December 2019	2020, April 8	Expected Announcement - May 2020
Status
Coming Soon - December 12, 2019	Coming soon. Exp. release 2020, April	Rumored
Price
Rs. 23,999 ($0.00) [Similarly Priced]	-	-
Colors
Prism Crush White, Black, Pink, Blue	Various	Black, White, Blue
Form Factor
Candybar	Candybar	Candybar
Dimension
158.4 x 73.7 x 7.9 mm (6.24 x 2.9 x 0.31 in)	-	8.9 mm thickness (0.35 in thickness)
Weight
172 g (6.07 oz)	-	191 g (6.74 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), 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 (dual-SIM only)	GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (dual-SIM model only)
3G Network
HSDPA 850 / 900 / 1900 / 2100 HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100	HSDPA 850 / 900 / 1900 / 2100 HSDPA 850 / 1700(AWS) / 1900 / 2100	HSDPA 850 / 900 / 1900 / 2100
4G Network
LTE (unspecified)	LTE	LTE
Messaging

Build Features
- Fingerprint Sensor(In-display)	- Fingerprint Sensor Glass front, plastic back, plastic frame	- Fingerprint Sensor

OS
Android 9.0 (Pie)	Android 10.0	Android 10.0
User Interface
One UI	One UI 2.0	One UI 2.0
Processor
Octa-core (4x2.3 GHz Cortex-A73 & 4x1.7 GHz Cortex-A53), Exynos 9611 (10nm)	Octa-core (4x2.35 GHz Cortex-A53 & 4x1.8 GHz Cortex-A53), Mediatek MT6765 Helio P35 (12nm)	Octa-core 2.0 GHz, Exynos 850
GPU
Mali-G72 MP3	PowerVR GE8320	-
RAM
8 GB	3 GB	3 GB
Internal Memory
128 GB	64 GB	64 GB
External Memory
microSD, up to 512 GB (dedicated slot)	microSDXC (dedicated slot)	microSDXC

Type
Full HD+ Infinity-O Super AMOLED Capacitive Touchscreen	HD+ Super AMOLED Capacitive Touchscreen	PLS TFT Capacitive Touchscreen
Colors
16M colors	16M colors	16M colors
Size
6.5 inches	6.5 inches	6.55 inches
Resolution
1080 x 2340 pixels (396 ppi)	720 x 1600 pixels (270 ppi)	720 x 1600 pixels (268 ppi)
Screen-to-Body Ratio
89.06%	-	-
Multi-Touch

Rear Camera
48 MP + 12 MP + 5 MP + 5 MP	16 MP + 8 MP + 2 MP + 2 MP	48 MP + 8 MP + 2 MP
Flash
LED Flash	No	LED Flash
Features
48 MP, f/1.8, (wide), 1/2", 0.8µm, PDAF 12 MP, f/2.2, 13mm (ultrawide) 5 MP, f/2.2, depth sensor 5 MP, f/2.4, macro camera Panorama, HDR	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, 26mm (wide), 1/2.0", 0.8µm, PDAF 8 MP, f/2.4, (ultrawide), 1/4.0", 1.12µm 2 MP, f/2.4, (macro) Panorama, HDR
Video
2160p@30fps, 1080p@30fps	1080p@30fps	1080p@30fps
Front Camera
32 MP, f/2.0, 25mm (wide) HDR 1080p@30fps	13 MP HDR 1080p@30fps	13 MP, f/2.3, 29mm (normal), 1/3.1", 1.12µm HDR, Panorama 1080p@30fps

GPRS
Yes	Yes	Yes
Edge
Yes	Yes	Yes
3G
HSPA, LTE-A	HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps	HSPA 42.2/5.76 Mbps, LTE-A
Bluetooth
5.0, A2DP, LE	5.0, A2DP, LE	5.0, A2DP, LE
Wi-Fi
Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot	Wi-Fi 802.11 b/g/n, Wi-Fi Direct, hotspot	Wi-Fi 802.11 b/g/n, Wi-Fi Direct, hotspot
USB
2.0, Type-C 1.0 reversible connector, USB On-The-Go	2.0, Type-C 1.0 reversible connector, USB On-The-Go	Yes
GPS
Yes, with A-GPS, GLONASS, GALILEO, BDS	Yes, with A-GPS, GLONASS, BDS	Yes, with A-GPS
Browser
Yes	Yes	Yes

Internal
128 GB, 8 GB RAM or 128 GB, 6 GB RAM or 64 GB, 4 GB RAM	64 GB, 3 GB RAM eMMC 5.1	64 GB, 3 GB RAM or 32 GB, 3 GB RAM
Expandable Storage
microSD, up to 512 GB (dedicated slot)	microSDXC (dedicated slot)	microSDXC
USB OTG
Supported	Supported	Supported

Fingerprint

Proximity Sensor

Accelerometer Sensor

Magnetic-field Sensor (Compass)

Gyroscope Sensor

NFC

Type
Non-removable Li-Po Battery Fast battery charging 15W	Non-removable Li-Po Battery Fast battery charging 15W	Non-removable Li-Po Battery Battery Charging 10W
Capacity
4000 mAh	4000 mAh	5000 mAh
Stand by
-	-	-
Talk Time
-	-	-