Reserves open for the new Samsung phones!

LG Stylo 4 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.

7.0
LG Stylo 4	LG K51
Released · Jun 18, 2018	Released · May 06, 2020
6.2-inch	6.5-inch
Single camera	Triple camera
3GB · 32GB	3GB · 32GB
3300 mAh	4000 mAh

Design

Dimensions
6.30 x 3.06 x 0.32 inches 160 x 77.7 x 8.1 mm	6.57 x 3.07 x 0.33 inches 166.9 x 77.9 x 8.4 mm
Weight
6.07 oz (172.0 g)	7.17 oz (203.4 g)
Materials
Back: Metal
Resistance
	Yes; MIL-STD-810 certified
Biometrics
2D Face unlock, Fingerprint (touch)	Fingerprint (touch)
Features
Notification light, Stylus
Keys
Left: Volume control; Right: Lock/Unlock key	Left: Volume control; Right: Lock/Unlock key
Colors
Black	Titan gray

Display

Size
6.2-inch	6.5-inch
Resolution
2160x1080px, 18:9 ratio, 390 PPI	1560x720px, 19.5:9 ratio, 264 PPI
Technology
TFT	IPS LCD
Screen-to-body
79.63 %	79.70 %
Features
Ambient light sensor, Proximity sensor	Ambient light sensor, Proximity sensor

Hardware

System chip
Qualcomm Snapdragon 450 SDM450 (14 nm)	MediaTek Helio P22 MT6762 (12 nm)
Processor
Octa-core 1800 MHz ARM Cortex-A53	Octa-core 2000 MHz Arm Cortex-A53
GPU
Adreno 506	IMG PowerVR GE8320
RAM
3GB (LPDDR3)	3GB
Internal storage
32GB, available to use: 21.38 GB	32GB, available to use: 18 GB
Storage expansion
microSDXC up to 2000 GB	microSDXC up to 2000 GB
OS
Android (9.0 Pie, 8.1 Oreo), LG UX UI	Android (10)

Battery

Capacity
3300 mAh	4000 mAh
Type
Li - Polymer	Li - Ion
Charging
Qualcomm Quick Charge 2.0, Qualcomm Quick Charge 3.0

Camera

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

Connectivity & Features

Bluetooth
4.2	5.0
WLAN
802.11 a,b,g,n,ac,dual-band Wi-Fi Direct, Hotspot	802.11 a,b,g,n,ac,dual-band Wi-Fi Direct, Hotspot
USB
Type-C, USB 2.0	Type-C, USB 2.0
Hearing aid compatible
M4/T3	M3/T3
Location
GPS, A-GPS	GPS, A-GPS, Cell ID, Wi-Fi positioning
Sensors
Accelerometer, Compass	Accelerometer, Gyroscope, Compass
Other
NFC, 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
DLNA,Wireless screen share	Wireless screen share
Radio
FM	FM
Additional microphone(s)
Noise cancellation	Noise cancellation

Cellular

4G (FDD)
Bands 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 12(700 a), 13(700 c), 17(700 b), 20(800 DD), 25(1900+), 26(850+), 66(AWS-3), 71(600)	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 1(2100), 2(1900), 4(1700/2100), 5(850), 8(900)	Bands 1(2100), 2(1900), 4(1700/2100), 5(850), 8(900)
Data Speed
LTE-A Cat 6 (300/50 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSPA, HSUPA, UMTS	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

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
$ 300	$ 200
In The Box
USB Cable, Charger, Quick Start Guide, SIM Ejection tool	Charger, USB Cable, SIM Ejector

Availability

Officially announced
	May 06, 2020

Alternative variants

for Cricket Wireless


4G (FDD)	Bands 2(1900), 4(AWS-1), 5(850), 12(700 a), 14(700 PS)
3G	Bands 5(850), 4(1700/2100), 2(1900)
FCC approval	Date approved: May 30, 2018 FCC ID value: ZNFQ710CS
Measured SAR	Head: 0.36 W/kg Body: 0.69 W/kg Simultaneous Transmission: 1.57 W/kg Wireless Router: 1.14 W/kg Phablet: 3.56 W/kg

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)

for T-Mobile


RAM	2GB
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), 66(AWS-3), 71(600)
4G (TDD)	Bands 38(2600), 41(2600+)
FCC approval	Date approved: Apr 19, 2018 FCC ID value: ZNFQ710TS
Measured SAR	Head: 0.27 W/kg Body: 0.75 W/kg Simultaneous Transmission: 1.58 W/kg Wireless Router: 1.22 W/kg Phablet: 3.80 W/kg

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

for Sprint


System chip	MediaTek MT6750S (28 nm)
Processor	Octa-core 1500 MHz ARM Cortex-A53
GPU	Mali-T860 MP2
RAM	2GB
4G (FDD)	Bands 2(1900), 4(AWS-1), 5(850), 12(700 a), 13(700 c), 17(700 b), 25(1900+), 26(850+)
4G (TDD)	Bands 41(2600+)
FCC approval	Date approved: Jun 04, 2018 FCC ID value: ZNFQ710AL
Measured SAR	Head: 0.29 W/kg Body: 0.80 W/kg Simultaneous Transmission: 1.55 W/kg Wireless Router: 1.08 W/kg

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)

for Xfinity Mobile


RAM	2GB
Internal storage	16GB
4G (FDD)	Bands 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 13(700 c), 20(800 DD), 66(AWS-3)
FCC approval	Date approved: Jun 06, 2018 FCC ID value: ZNFQ710US
Measured SAR	Head: 0.21 W/kg Body: 0.72 W/kg Simultaneous Transmission: 1.59 W/kg Wireless Router: 1.28 W/kg Phablet: 3.93 W/kg

for MetroPCS


RAM	2GB
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), 66(AWS-3), 71(600)
4G (TDD)	Bands 38(2600), 41(2600+)

for Boost Mobile


System chip	MediaTek MT6750S (28 nm)
Processor	Octa-core 1500 MHz ARM Cortex-A53
GPU	Mali-T860 MP2
Rear	Single camera
Main camera	16 MP
Resistance	Water, Dust; IP68; 1
Colors	Blue
4G (FDD)	Bands 2(1900), 4(AWS-1), 5(850), 12(700 a), 13(700 c), 17(700 b), 25(1900+), 26(850+)
4G (TDD)	Bands 41(2600+)

Links

Full specifications
LG Stylo 4 Specs	LG K51 Specs
PhoneArena Review
LG Stylo 4 Review
User Reviews
LG Stylo 4 User Reviews	LG K51 User Reviews