Phone Comparison - Samsung Galaxy A3 vs Samsung Galaxy A31 vs Samsung Galaxy A12

general General Info

Manufacturer Samsung Samsung Samsung
Announced October 2014 2020, March 24 2020, November 24
Status Available - November 2014 Coming Soon - April 2020 Coming Soon - January 2021
Price Rs. 14,265 ($209.78) [Similarly Priced] - Rs. 12,999 ($0.00) [Similarly Priced]
Colors Pearl White, Midnight Black, Platinum Silver, Soft Pink, Light B Prism Crush Black, Prism Crush Blue, Prism Crush Red, Prism Crush White Black, White, Blue, Red
Form Factor Candybar Candybar Candybar
Dimension 130.1 x 65.5 x 6.9 mm
( 5.12 x 2.58 x 0.27 in)
159.3 x 73.1 x 8.6 mm
(6.27 x 2.88 x 0.34 in)
164 x 75.8 x 8.9 mm
(6.46 x 2.98 x 0.35 in)
Weight 110.3 g (3.88.0.11 oz) 185 g (6.53 oz) 205 g (7.23 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)
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 (dual-SIM only)
3G Network HSDPA 850 / 1900 / 2100 HSDPA 850 / 900 / 1900 / 2100 HSDPA 850 / 900 / 1900 / 2100
4G Network LTE LTE (unspecified) LTE (unspecified)
Messaging SMS, MMS, Push Mail, EMail, IM
Build Features - - Fingerprint Sensor (under display, optical)
- Fingerprint Sensor (side-mounted)

hardware Hardware and OS

OS Android OS, v4.4.2 (KitKat) Android 10.0 Android 10
User Interface - One UI 2.0 -
Processor Quad-core 1.2 GHz Octa-core (2x2.0 GHz Cortex-A75 & 6x1.7 GHz Cortex-A55), Mediatek MT6768 Helio P65 (12nm) Octa-core (2.3 GHz, 1.8 GHz)
GPU - Mali-G52 MC2 -
RAM 1 GB 6 GB 4 GB
Internal Memory 16 GB 128 GB 128 GB
External Memory microSD, up to 64 GB microSDXC microSDXC

display Display

Type Super AMOLED Capacitive Touchscreen Super AMOLED Capacitive Touchscreen HD+ TFT display
Colors 16M colors 16M colors 16M Colour
Size 4.5 inches 6.4 inches 6.5 inches
Resolution 540 x 960 pixels (245 ppi) 1080 x 2400 pixels (411 ppi) 720 x 1560 pixels (264 ppi)
Screen-to-Body Ratio 65.39% 85.01% 83.64%
Multi-Touch yes yes yes

multimedia Multimedia

3.5mm Jack yes yes yes
Radio - - Unspecified
Games Yes + Downloadable Yes + Downloadable Yes + Downloadable
Loud Speaker yes yes yes

camera Camera

Rear Camera 8 MP, 3264x2448 pixels 48 MP + 8 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/2.0, (wide), 1/2.0", 0.8µm, PDAF
8 MP, f/2.2, 13mm (ultrawide), 1/4.0", 1.12µm
5 MP, f/2.4, (macro)
5 MP, f/2.4, (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
Video 1080p@30fps 1080p@30fps 1080p@30fps
Front Camera 5 MP [Similar] 20 MP, f/2.2, 0.8µm
HDR
1080p@30fps [Similar]
8 MP, f/2.2
1080p@30fps [Similar]

connectivity Connectivity and Data Rate

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 Cat4 150/50 Mbps
Bluetooth v4.0, BLE, ANT+ 5.0, A2DP, LE Yes
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 Yes
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

memory User Memory

Internal 16 GB, 1 GB RAM 128 GB, 6 GB RAM or 64 GB, 4 GB RAM (UFS 2.1) 128 GB, 4 GB RAM or 64 GB, 4 GB RAM or 64 GB, 3 GB RAM or 32 GB, 3 GB RAM
Expandable Storage microSD, up to 64 GB microSDXC microSDXC
USB OTG - Supported Not Supported

Apps Sensors

Fingerprint fingerprint not supported fingerprint supported fingerprint supported
Proximity Sensor proximity sensor present proximity sensor present proximity sensor not present
Accelerometer Sensor accelerometer sensor present accelerometer sensor present accelerometer sensor not present
NFC NFC supported NFC not supported NFC not supported

battery Battery

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 5000 mAh 5000 mAh
Stand by - - -
Talk Time - - -