Samsung Galaxy J3 (2016) specs

Design
Dimensions	5.60 x 2.81 x 0.31 inches 142.2 x 71.4 x 7.9 mm
Weight	4.87 oz (138.0 g)
Features	Touch sensitive control keys
Keys	Left: Volume control; Right: Lock/Unlock key
Colors	Black, Gold, White

Display
Size	5.0-inch
Resolution	1280x720px, 294 PPI
Technology	Super AMOLED
Screen-to-body	67.89 %
Colors	16 777 216
Features	Proximity sensor

Hardware
System chip	Qualcomm Snapdragon 410 8916 (28 nm)
Processor	Quad-core 1200 MHz ARM Cortex-A53
GPU	Adreno 306
RAM	1.5GB (LPDDR3)
Internal storage	8GB, available to use: 4.3 GB
Storage expansion	microSDXC up to 128 GB
OS	Android (7.0 Nougat, 6.0 Marshmallow, 5.1 Lollipop)
This device has different variants: View all

Battery
Capacity	2600 mAh

Camera
Rear	Single camera
Main camera	8 MP (Autofocus, CMOS image sensor)
Flash	LED
Video recording	1280x720 (HD) (30 fps) Video calling, Video sharing
Front	5 MP
This device has different variants: View all

Connectivity & Features
Bluetooth	4.0
Wi-Fi	802.11 b,g,n Hotspot, Wi-Fi Direct
USB	microUSB, USB 2.0
Location	GPS, A-GPS
Sensors	Accelerometer, Compass
Other	NFC, Tethering, Computer sync, OTA sync

Multimedia
Headphones	3.5mm jack
Speakers	Earpiece, Loudspeaker
Features	Album art cover, Background playback
Screen mirroring	Wireless screen share
Additional microphone(s)	Noise cancellation

Cellular
4G (FDD)	Bands 1(2100), 3(1800), 5(850), 7(2600), 8(900), 20(800 DD)
3G	Bands 5(850), 8(900), 2(1900), 1(2100)
Data Speed	LTE, HSPA, UMTS
SIM type	Micro SIM

Phone Features
Notifications	Music ringtones (MP3), Polyphonic ringtones, Vibration, Flight mode, Silent mode, Speakerphone
Other features	Voice dialing, Voice commands, Voice recording

Differences from the main variant:
Internal storage	16GB
Rear	Single camera
Main camera	5 MP
Front	2 MP

Verizon
AT&T
U.S. Cellular
Boost Mobile
Southern LINC

I purchased this phone from Boost Mobile in early December, and I am delighted thus far with its performance. The Boost variant has 1.5 GB of RAM and 16 GB of ROM with a 1.2 GHz Snapdragon 410 Processor and Adreno 306 Graphics. The battery lasts a whole day + on a single charge even with the LTE (4G) enabled. I lose about 1-2 percent battery capacity per hour if I take conservation measures. I installed "Doze" on the J3 and I am now losing 0.40-1.00 % per hour.

The 720 x 1280 display is nice. The AMOLED seems to handle well, colors are vibrant for the most part. The camera is not good, but this is not a S7. The Boost variant comes with Android Lollipop 5.1.1 out of the box, I hope that an upgrade to at least Marshmallow (6.0.1) is being considered.

The earpiece audio is excellent. I also got excellent reports on my voice from the phone (bottom microphone). The Speakerphone is fair, the ringers and alerts could be a bit louder. Overall this makes for a good starter phone on Boost Mobile.