Samsung Galaxy J7 Refine vs LG K51 Specs Comparison

Availability

Officially announced
Jun 29, 2018	May 06, 2020
Prices (MSRP)
	$200

Design

Dimensions
6.03 x 3 x 0.34 inches 153.2 x 76.2 x 8.6 mm	6.57 x 3.07 x 0.33 inches 166.9 x 77.9 x 8.4 mm
Weight
6.38 oz (181.0 g)	7.17 oz (203.4 g)
Resistance
	Yes; MIL-STD-810 certified
Biometrics
2D Face unlock	Fingerprint (touch)
Features
Touch sensitive control keys
Keys
Left: Volume control; Right: Lock/Unlock key	Left: Volume control; Right: Lock/Unlock key
Colors
Gold	Titan gray

Display

Size
5.5-inch, 71.45% screen-to-body	6.5-inch, 79.70% screen-to-body
Type
TFT	IPS LCD
Resolution
1280x720px, 16:9 ratio, 267 PPI	1560x720px, 19.5:9 ratio, 264 PPI
Colors
16 777 216
Protection
Corning Gorilla Glass 5

Hardware

System chip
Samsung Exynos 7 Octa 7884 (14 nm)	MediaTek Helio P22 MT6762 (12 nm)
Processor
Octa-core 1600 MHz ARM Cortex-A53	Octa-core 2000 MHz Arm Cortex-A53
GPU
Mali-T830 MP1	IMG PowerVR GE8320
Memory
2GB (LPDDR3)/32GB	3GB/32GB
Storage expansion
microSDXC up to 400 GB	microSDXC up to 2000 GB
OS
Android (8.0 Oreo)	Android (10)

Battery

Type
3300 mAh, Li - Polymer	4000 mAh, Li - Ion

Camera

Rear
Single camera	Triple camera
Main camera
13 MP (PDAF) Aperture size: F1.7 Focal length: 28 mm Sensor size: 1/3.06" Pixel size: 1.12 μm	13 MP (PDAF) Aperture size: F1.8 Sensor size: 1/3" Pixel size: 1.12 μm
Second camera
	5 MP (Ultra-wide) Aperture size: F2.2 Sensor size: 1/5" Pixel size: 1.12 μm
Third camera
	2 MP (Depth information) Sensor size: 1/5" Pixel size: 1.75 μm
Flash
LED	LED
Video recording
1080p (30 fps) Video calling, Video sharing	1080p Picture-taking during video recording
Front
13 MP	13 MP Video capture: 1080p

Connectivity & Features

Bluetooth
4.2	5.0
WLAN
a,b,g,n,ac,dual-band Hotspot, Wi-Fi Direct 802.11 a, b, g, n, ac	a,b,g,n,ac,dual-band Wi-Fi Direct, Hotspot 802.11 a, b, g, n, ac
USB
microUSB, USB 2.0	Type-C, USB 2.0
Sensors
Accelerometer, Gyroscope, Compass, Ambient light sensor, Proximity sensor	Accelerometer, Gyroscope, Compass, Ambient light sensor, Proximity sensor
Hearing aid compatible
M3/T3	M3/T3
Location
GPS, A-GPS, Glonass	GPS, A-GPS, Cell ID, Wi-Fi positioning
Other
ANT+, UMA (Wi-Fi Calling), VoIP, Tethering, Computer sync, OTA sync

Multimedia

Headphones
3.5mm jack	3.5mm jack
Speakers
Earpiece, Loudspeaker	Earpiece, Multiple speakers
Features
Album art cover, Background playback	DTS:X Virtual Surround
Screen mirroring
Wireless screen share	Wireless screen share
Radio
	FM
Additional microphone(s)
Yes	Noise cancellation

Cellular

4G (FDD) Bands
25, 26	2, 3, 4, 5, 7, 12, 13, 20, 25, 26, 66, 71
4G (TDD) Bands
41	41
3G Bands
	1, 2, 4, 5, 8
Data Speed
LTE-A Cat 6 (300/50 Mbit/s), HSPA, HSUPA	LTE-A Cat 6 (300/50 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s
SIM type
Nano SIM	Nano SIM
HD Voice
Yes	Yes
VoLTE
	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: May 07, 2018 FCC ID value: A3LSMJ737P	Date approved: Jun 16, 2020 FCC ID value: ZNFL555DL
Measured SAR
Head: 0.96 W/kg Body: 0.76 W/kg Simultaneous Transmission: 1.59 W/kg Wireless Router: 1.20 W/kg Phablet: 3.91 W/kg	Head: 0.66 W/kg Body: 1.20 W/kg Simultaneous Transmission: 1.59 W/kg Wireless Router: 1.27 W/kg Phablet: 3.96 W/kg

Alternative variants

for Boost Mobile

OS	Android (9.0 Pie)
4G (FDD) Bands	2, 4, 5, 12, 13, 25, 26, 66, 71

for Verizon

4G (FDD) Bands	2, 3, 4, 5, 7, 12, 13, 20, 66
Prices (MSRP)	$170

for Metro

4G (FDD) Bands	1, 2, 3, 4, 5, 7, 12, 13, 20, 25, 26, 66, 71
4G (TDD) Bands	38, 41
3G Bands	5, 4, 2, 1

Links

Full specifications
Samsung Galaxy J7 Refine Specs	LG K51 Specs
User Reviews
	LG K51 User Reviews