Phone Comparison - Samsung Galaxy J7 vs Samsung Galaxy A31 vs Samsung Galaxy A12

Price Comparison (India) - -

general General Info

Manufacturer Samsung Samsung Samsung
Announced June 2015 2020, March 24 2020, November 24
Status Available - June 2015 Coming Soon - April 2020 Coming Soon - January 2021
Price Rs. 13,400 ($197.06) [Similarly Priced] - Rs. 12,999 ($0.00) [Similarly Priced]
Colors White, Black Prism Crush Black, Prism Crush Blue, Prism Crush Red, Prism Crush White Black, White, Blue, Red
Form Factor Candybar Candybar Candybar
Dimension 152.4 x 78.6 x 7.5 mm
(6 x 3.09 x 0.3 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 171 g (6.03 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 - SIM 1 & SIM 2 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 900 / 2100 HSDPA 850 / 900 / 1900 / 2100 HSDPA 850 / 900 / 1900 / 2100
4G Network LTE LTE (unspecified) LTE (unspecified)
Messaging SMS, MMS, EMail, IM
Build Features - - Fingerprint Sensor (under display, optical)
- Fingerprint Sensor (side-mounted)

hardware Hardware and OS

OS Android OS, v5.1 (Lollipop) Android 10.0 Android 10
User Interface - One UI 2.0 -
Processor Octa-core 1.2 GHz, Exynos 7580 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-T720 Mali-G52 MC2 -
RAM 1.5 GB 6 GB 4 GB
Internal Memory 16 GB 128 GB 128 GB
External Memory microSD, up to 128 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 5.5 inches 6.4 inches 6.5 inches
Resolution 720 x 1280 pixels (267 ppi) 1080 x 2400 pixels (411 ppi) 720 x 1560 pixels (264 ppi)
Screen-to-Body Ratio 69.63% 85.01% 83.64%
Multi-Touch yes yes yes

multimedia Multimedia

3.5mm Jack yes yes yes
Radio FM radio with RDS; recording - Unspecified
Games Yes + Downloadable Yes + Downloadable Yes + Downloadable
Loud Speaker yes yes yes

camera Camera

Rear Camera 13 MP, 4128 x 3096 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, Touch Focus, Beauty Face, Continuous Shots, Sensor Size: 1/3.06-inch, F1.9, Interval Shot, Panorama, Sports Mode, Sound and Shot Mode 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 HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps HSPA, LTE-A HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps
Bluetooth v4.1, A2DP 5.0, A2DP, LE Yes
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 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, 1.5 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 128 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 not supported NFC not supported NFC not supported

battery Battery

Type Li-Ion Battery Non-removable Li-Po Battery
Fast battery charging 15W
Non-removable Li-Po Battery
Fast battery charging 15W
Capacity 3000 mAh 5000 mAh 5000 mAh
Stand by Up to 354 h - -
Talk Time Up to 18 h (3G) - -