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Motorola Moto E4 vs LG K51 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.

8.5
Motorola Moto E4	LG K51
Released · Jun 22, 2017	Released · May 06, 2020
5.0-inch	6.5-inch
Single camera	Triple camera
2GB · 16GB	3GB · 32GB
2800 mAh	4000 mAh
	Check prices

Design

Dimensions
5.69 x 2.83 x 0.37 inches 144.5 x 72 x 9.3 mm	6.57 x 3.07 x 0.33 inches 166.9 x 77.9 x 8.4 mm
Weight
5.29 oz (150.0 g)	7.17 oz (203.4 g)
Materials
Frame: Metal
Resistance
Splash	Yes; MIL-STD-810 certified
Biometrics
Fingerprint (touch)	Fingerprint (touch)
Keys
Right: Volume control, Lock/Unlock key	Left: Volume control; Right: Lock/Unlock key
Colors
Black, Gold	Titan gray

Display

Size
5.0-inch	6.5-inch
Resolution
1280x720px, 294 PPI	1560x720px, 19.5:9 ratio, 264 PPI
Technology
IPS LCD	IPS LCD
Screen-to-body
66.34 %	79.70 %
Features
Scratch-resistant glass, Ambient light sensor, Proximity sensor	Ambient light sensor, Proximity sensor

Hardware

System chip
Qualcomm Snapdragon 427 8920 (28 nm)	MediaTek Helio P22 MT6762 (12 nm)
Processor
Quad-core 1400 MHz ARM Cortex-A53	Octa-core 2000 MHz Arm Cortex-A53
GPU
Adreno 308	IMG PowerVR GE8320
RAM
2GB (LPDDR3)	3GB
Internal storage
16GB	32GB, available to use: 18 GB
Storage expansion
microSDXC up to 128 GB	microSDXC up to 2000 GB
OS
Android (7.1 Nougat)	Android (10)

Battery

Capacity
2800 mAh	4000 mAh
Type
Li - Ion	Li - Ion
Charging
Fast charging

Camera

Rear
Single camera	Triple camera
Main camera
8 MP (Autofocus) Aperture size: F2.2 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
1920x1080 (Full HD) (30 fps) Video calling, Video sharing	1920x1080 (Full HD) Picture-taking during video recording
Front
5 MP (Flash, HDR)	13 MP, Video capture: 1920x1080 (Full HD)

Connectivity & Features

Bluetooth
4.1	5.0
WLAN
802.11 a,b,g,n Wi-Fi Direct, Hotspot	802.11 a,b,g,n,ac,dual-band Wi-Fi Direct, Hotspot
USB
microUSB, USB 2.0	Type-C, USB 2.0
Hearing aid compatible
	M3/T3
Location
GPS, A-GPS	GPS, A-GPS, Cell ID, Wi-Fi positioning
Sensors
Accelerometer, Compass	Accelerometer, Gyroscope, Compass
Other
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, RDS	FM
Additional microphone(s)
Noise cancellation	Noise cancellation

Cellular

4G (FDD)
Bands 1(2100), 2(1900), 4(AWS-1), 5(850), 7(2600), 8(900), 12(700 a), 13(700 c), 17(700 b), 25(1900+), 26(850+)	Bands 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 12(700 a), 13(700 c), 20(800 DD), 25(1900+), 26(850+), 66(AWS-3), 71(600)
4G (TDD)
Bands 38(2600), 41(2600+)	Bands 41(2600+)
3G
Bands 5(850), 8(900), 4(1700/2100), 2(1900), 1(2100)	Bands 1(2100), 2(1900), 4(1700/2100), 5(850), 8(900)
Data Speed
LTE Cat 4 (150/50 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s	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
VoLTE
	Yes

Regulatory Approval

FCC approval
	Date approved: Jun 16, 2020 FCC ID value: ZNFL555DL
Measured SAR
	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

Buyers information

MSRP
$ 130	$ 200
In The Box
	Charger, USB Cable, SIM Ejector

Availability

Officially announced
Jun 12, 2017	May 06, 2020

Alternative variants


System chip	Qualcomm Snapdragon 425 8917 (28 nm)
Processor	Quad-core 1400 MHz ARM Cortex-A53
GPU	Adreno 308

for Boost Mobile


OS	Android (9.0 Pie)
4G (FDD)	Bands 2(1900), 4(AWS-1), 5(850), 12(700 a), 13(700 c), 25(1900+), 26(850+), 66(AWS-3), 71(600)


System chip	MediaTek MT6737 (28 nm)
Processor	Quad-core 1300 MHz ARM Cortex-A53
GPU	Mali-T720 MP2
Rear	Single camera
Video recording	1280x720 (HD) (30 fps)
Colors	Blue
4G (FDD)	Bands 1(2100), 3(1800), 4(AWS-1), 5(850), 8(900), 20(800 DD)
4G (TDD)	Bands 38(2600), 40(2300)
3G	Bands 5(850), 8(900), 2(1900), 1(2100)
Bluetooth	4.2
WLAN	802.11 b,g,n
USB	Yes
Other	NFC

for Verizon


4G (FDD)	Bands 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 12(700 a), 13(700 c), 20(800 DD), 66(AWS-3)
MSRP	$ 170


System chip	MediaTek MT6737 (28 nm)
Processor	Quad-core 1300 MHz ARM Cortex-A53
Rear	Single camera
Video recording	1280x720 (HD) (720 fps)
Colors	Blue
4G (FDD)	Bands 1(2100), 3(1800), 4(AWS-1), 5(850), 8(900), 20(800 DD)
4G (TDD)	Bands 38(2600), 40(2300)
3G	Bands 5(850), 8(900), 2(1900), 1(2100)
Dual SIM	Yes
Bluetooth	4.2
WLAN	802.11 b,g,n
USB	Yes
Other	NFC

for Metro


4G (FDD)	Bands 1(2100), 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 12(700 a), 13(700 c), 20(800 DD), 25(1900+), 26(850+), 66(AWS-3), 71(600)
4G (TDD)	Bands 38(2600), 41(2600+)
3G	Bands 5(850), 4(1700/2100), 2(1900), 1(2100)

Links

Full specifications
Motorola Moto E4 Specs	LG K51 Specs
PhoneArena Review
Motorola Moto E4 Review
User Reviews
Motorola Moto E4 User Reviews	LG K51 User Reviews