Samsung Galaxy J3 (2018) vs Samsung Galaxy A12 Specs Comparison

Compare mobile phone specifications of up to three devices at once. Our specs comparison tool helps you find and compare the perfect phone for your needs.


Samsung Galaxy J3 (2018)	Samsung Galaxy A12
Released · Jun 13, 2018	Released · Dec 21, 2020
5.0-inch · 1280x720px	6.5-inch · 1600x720px
Single camera	Quad camera
2GB · 16GB	4GB · 64GB
2600 mAh	5000 mAh

Design

Dimensions
5.62 x 2.76 x 0.35 inches 142.7 x 70.1 x 8.9 mm	6.46 x 2.98 x 0.35 inches 164 x 75.8 x 8.9 mm
Weight
5.36 oz (152.0 g)	7.23 oz (205.0 g)
Materials
Back: Plastic	Back: Plastic Frame: Plastic
Biometrics
	Fingerprint (touch)
Features
Touch sensitive control keys
Keys
Left: Volume control; Right: Lock/Unlock key	Right: Volume control, Lock/Unlock key
Colors
Silver	Black, White, Blue, Red

Display

Size
5.0-inch	6.5-inch
Resolution
1280x720px, 16:9 ratio, 294 PPI	1600x720px, 20:9 ratio, 270 PPI
Technology
TFT	LCD
Screen-to-body
68.87 %	85.80 %
Colors
16 777 216
Features
Proximity sensor	Ambient light sensor, Proximity sensor

Hardware

System chip
Samsung Exynos 7 Quad 7570 (14 nm)	Mediatek Helio P35 MT6765 (12 nm)
Processor
Quad-core 1400 MHz ARM Cortex-A53	Octa-core 4x 2.3GHz Cortex-A53 + 4x 1.8GHz Cortex-A53
GPU
Mali-T720 MP1	PowerVR GE8320
RAM
2GB	4GB (LPDDR4)
Internal storage
16GB	64GB (eMMC 5.1), available to use: 48.2 GB
Storage expansion
microSDXC up to 400 GB	microSDXC up to 1024 GB
OS
Android (9.0 Pie, 8.0 Oreo)	Android (10), Samsung One UI UI

Battery

Capacity
2600 mAh	5000 mAh
Type
	Li - Polymer
Charging
	Samsung Adaptive Fast Charging
Charge speed
	Wired: 15.0W

Camera

Rear
Single camera	Quad camera
Main camera
8 MP (Autofocus, BSI sensor) Aperture size: F1.9 Focal length: 27 mm Sensor size: 1/4" Pixel size: 1.12 μm	48 MP (Autofocus) Aperture size: F2.0 Focal length: 26 mm
Second camera
	5 MP (Ultra-wide) Aperture size: F2.2
Third camera
	2 MP (Macro) Aperture size: F2.4
Fourth camera
	2 MP (Depth information) Aperture size: F2.4
Flash
LED	LED
Video recording
1920x1080 (Full HD) (30 fps) Video calling, Video sharing	1920x1080 (Full HD) (30 fps)
Front
5 MP, Video capture: 1920x1080 (Full HD)	8 MP

Connectivity & Features

Bluetooth
4.2	5.0
WLAN
802.11 b,g,n Hotspot, Wi-Fi Direct	802.11 b,g,n Wi-Fi Direct, Hotspot
USB
microUSB, USB 2.0	Type-C, USB 2.0
Hearing aid compatible
M3/T3
Location
GPS, A-GPS, Glonass	GPS, A-GPS, Glonass, Galileo, Cell ID, Wi-Fi positioning
Sensors
Accelerometer, Gyroscope, Compass	Accelerometer
Other
UMA (Wi-Fi Calling), VoIP, Tethering, Computer sync, OTA sync	NFC

Multimedia

Headphones
3.5mm jack	3.5mm jack
Speakers
Earpiece, Loudspeaker	Earpiece, Loudspeaker
Features
Album art cover, Background playback
Screen mirroring
Wireless screen share	Wireless screen share,MirrorLink
Radio
FM

Cellular

4G (FDD)
Bands 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 12(700 a), 14(700 PS)	Bands 1(2100), 3(1800), 5(850), 7(2600), 8(900), 20(800 DD), 28(700 APT)
4G (TDD)
	Bands 38(2600), 40(2300), 41(2600+)
3G
Bands 5(850), 2(1900), 1(2100)	Bands 1(2100), 5(850), 8(900)
Data Speed
LTE Cat 4 (150/50 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s, HSUPA, UMTS	LTE, HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s
Dual SIM
	No
SIM type
Nano SIM	Nano SIM
HD Voice
Yes

Phone Features

Notifications
Haptic feedback, Music ringtones, Vibration, Flight mode, Silent mode, Speakerphone
Other features
Voice dialing, Voice commands, Voice recording, TTY/TDD

Regulatory Approval

FCC approval
Date approved: Apr 04, 2018 FCC ID value: A3LSMJ337A	Date approved: Mar 11, 2021 FCC ID value: A3LSMA125U
Measured SAR
Head: 1.22 W/kg Body: 1.02 W/kg Simultaneous Transmission: 1.56 W/kg Wireless Router: 1.18 W/kg	Head: 1.14 W/kg Body: 1.20 W/kg Simultaneous Transmission: 1.59 W/kg Wireless Router: 1.34 W/kg

Buyers information

MSRP
	€ 179
In The Box
Charger and microUSB cable	Power brick, USB cable, Headphones, Sim card extraction tool

Availability

Officially announced
Jun 07, 2018	Nov 24, 2020

Alternative variants

for AT&T Prepaid


Colors	Black

With 32GB storage


RAM	3GB
Internal storage	32GB

for Verizon


System chip	Samsung Exynos 7884A
Processor	Octa-core 1350 MHz ARM-Cortex A73 and ARM-Cortex A53
4G (FDD)	Bands 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 13(700 c)
FCC approval	Date approved: May 07, 2018 FCC ID value: A3LSMJ337V
Measured SAR	Head: 1.14 W/kg Body: 0.92 W/kg Simultaneous Transmission: 1.59 W/kg Wireless Router: 1.17 W/kg

With 128GB storage


RAM	6GB
Internal storage	128GB

for Sprint and Boost Mobile


System chip	Samsung Exynos 7884A
Processor	Octa-core 1350 MHz ARM-Cortex A73 and ARM-Cortex A53
4G (FDD)	Bands 25(1900+), 26(850+)
4G (TDD)	Bands 41(2600+)

for T-Mobile


4G (FDD)	Bands 2(1900), 4(AWS-1), 5(850), 12(700 a), 66(AWS-3), 71(600)

Links

Full specifications
Samsung Galaxy J3 (2018) Specs	Samsung Galaxy A12 Specs