Samsung Galaxy A3 vs Samsung Galaxy A51 vs Samsung Galaxy M12

Price Comparison (India)

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Manufacturer
Samsung	Samsung	Samsung
Announced
October 2014	December 2019	2021, February 05
Status
Available - November 2014	Coming Soon - December 12, 2019	Coming soon. Exp. release 2021, February
Price
Rs. 14,265 ($209.78) [Similarly Priced]	Rs. 23,999 ($0.00) [Similarly Priced]	-
Colors
Pearl White, Midnight Black, Platinum Silver, Soft Pink, Light B	Prism Crush White, Black, Pink, Blue	Gray, Blue, Green
Form Factor
Candybar	Candybar	Candybar
Dimension
130.1 x 65.5 x 6.9 mm ( 5.12 x 2.58 x 0.27 in)	158.4 x 73.7 x 7.9 mm (6.24 x 2.9 x 0.31 in)	163.9 x 75.9 x 8.9 mm (6.45 x 2.99 x 0.35 in)
Weight
110.3 g (3.88.0.11 oz)	172 g (6.07 oz)	221 g (7.8 oz)
SIM Type
-	Single SIM (Nano-SIM), Dual SIM (Nano-SIM, dual stand-by)	Dual SIM (Nano-SIM, dual stand-by)
2G Network
GSM 850 / 900 / 1800 / 1900	GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (dual-SIM model only)	GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
3G Network
HSDPA 850 / 1900 / 2100	HSDPA 850 / 900 / 1900 / 2100 HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100	HSDPA 850 / 900 / 1900 / 2100
4G Network
LTE	LTE (unspecified)	LTE 1, 2, 3, 4, 5, 7, 8, 12, 17, 20, 26, 28, 38, 40, 41, 66
Messaging
SMS, MMS, Push Mail, EMail, IM
Build Features
-	- Fingerprint Sensor(In-display)	- Fingerprint Sensor (side-mounted)

OS
Android OS, v4.4.2 (KitKat)	Android 9.0 (Pie)	Android 10
User Interface
-	One UI	One UI 2.5
Processor
Quad-core 1.2 GHz,	Octa-core (4x2.3 GHz Cortex-A73 & 4x1.7 GHz Cortex-A53), Exynos 9611 (10nm)	Octa-core (4x2.0 GHz Cortex-A55 & 4x2.0 GHz Cortex-A55), Exynos 850 (8nm)
GPU
-	Mali-G72 MP3	Mali-G52
RAM
1 GB	8 GB	6 GB
Internal Memory
16 GB	128 GB	128 GB
External Memory
microSD, up to 64 GB	microSD, up to 512 GB (dedicated slot)	microSDXC (dedicated slot)

Type
Super AMOLED Capacitive Touchscreen	Full HD+ Infinity-O Super AMOLED Capacitive Touchscreen	PLS IPS Display
Colors
16M colors	16M colors	16M Colour
Size
4.5 inches	6.5 inches	6.5 inches
Resolution
540 x 960 pixels (245 ppi)	1080 x 2340 pixels (396 ppi)	720 x 1600 pixels (270 ppi)
Screen-to-Body Ratio
65.39%	89.06%	81.95%
Multi-Touch

Rear Camera
8 MP, 3264x2448 pixels	48 MP + 12 MP + 5 MP + 5 MP	48 MP + 5 MP + 2 MP + 2 MP
Flash
LED flash	LED Flash	LED flash
Features
Auto focus, Geo-tagging, Face Detection, Panorama, HDR, Wide Selfie, Rear-cam Selfie	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	48 MP, f/2.0, (wide), PDAF 5 MP, f/2.2, 123˚ (ultrawide), 1/5.0", 1.12µm 2 MP, f/2.4, (macro) 2 MP, f/2.4, (depth) panorama, HDR
Video
1080p@30fps	2160p@30fps, 1080p@30fps	1080p@30fps
Front Camera
5 MP	32 MP, f/2.0, 25mm (wide) HDR 1080p@30fps	8 MP, f/2.2, (Wide) HDR 1080p@30fps

GPRS
Yes	Yes	Yes
Edge
Yes	Yes	Yes
3G
HSDPA, 42 Mbps; HSUPA, 5.8 Mbps; LTE, Cat4, 50 Mbps UL, 150 Mbps DL	HSPA, LTE-A	HSPA 42.2/5.76 Mbps, LTE-A
Bluetooth
v4.0, BLE, ANT+	5.0, A2DP, LE	5.0, A2DP
Wi-Fi
Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi hotspot	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
USB
microUSB v2.0	2.0, Type-C 1.0 reversible connector, USB On-The-Go	USB Type-C 2.0
GPS
Yes, with A-GPS, GLONASS	Yes, with A-GPS, GLONASS, GALILEO, BDS	Yes, with A-GPS, GLONASS, GALILEO, BDS
Browser
HTML5	Yes	Yes

Internal
16 GB, 1 GB RAM	128 GB, 8 GB RAM or 128 GB, 6 GB RAM or 64 GB, 4 GB RAM	128 GB, 6 GB RAM or 64 GB, 4 GB RAM or 32 GB, 3 GB RAM (eMMC 5.1)
Expandable Storage
microSD, up to 64 GB	microSD, up to 512 GB (dedicated slot)	microSDXC (dedicated slot)
USB OTG
-	Supported	Not Supported

Type
Non-removable Li-Po Battery	Non-removable Li-Po Battery Fast battery charging 15W	Non-removable Li-Po Battery Fast battery charging 15W
Capacity
1900 mAh	4000 mAh	6000 mAh
Stand by
-	-	-
Talk Time
-	-	-