LG K51S vs LG K31 Specs Comparison

Display

Size
6.5-inch	5.7-inch
Resolution
1600 x 720 px, 20:9 ratio, 270 PPI	1520 x 720 px, 19:9 ratio, 295 PPI
Technology
IPS LCD	IPS LCD
Screen-to-body
83.97 %	77.13 %
Features
Ambient light sensor, Proximity sensor	Ambient light sensor, Proximity sensor

Hardware

System chip
MediaTek Helio P35 MT6765 (12 nm)	MediaTek Helio P22 MT6762 (12 nm)
Processor
Octa-core, 2300 MHz, Arm Cortex-A53, 64-bit	Octa-core, 2000 MHz, Arm Cortex-A53, 64-bit
GPU
PowerVR GE8320	IMG PowerVR GE8320
RAM
3GB	2GB
Internal storage
64GB (eMMC 5.1)	32GB, available to use: 17 GB
Storage expansion
microSDXC up to 2048 GB	microSDXC up to 32 GB
OS
Android (10)	Android (10)
Device type
Smartphone	Smartphone

Battery

Capacity
4000 mAh	3000 mAh
Type
Not user replaceable	Not user replaceable

Camera

Rear
Quad camera	Dual camera
Main camera
32 MP (PDAF)	13 MP (PDAF) Specifications: Aperture size: F1.8 Sensor size: 1/3" Pixel size: 1.12 μm
Second camera
5 MP (Ultra-wide)	5 MP (Ultra-wide) Specifications: Aperture size: F2.2 Sensor size: 1/5" Pixel size: 1.12 μm
Third camera
2 MP (Macro)
Fourth camera
2 MP (Depth information)
Flash
LED	LED
Video recording
1920x1080 (Full HD) (30 fps)	1920x1080 (Full HD) (30 fps)
Front
13 MP	5 MP, Video capture: 1920x1080 (Full HD)

Design

Dimensions
6.50 x 3.02 x 0.33 inches (165.2 x 76.7 x 8.3 mm)	5.82 x 2.8 x 0.34 inches (147.8 x 71.1 x 8.6 mm)
Weight
6.77 oz(192.0 g)	5.15 oz(146.0 g)
Materials
	Back: Plastic Frame: Plastic
Resistance
Yes; MIL-STD-810 certified	Yes; MIL-STD-810 certified
Biometrics
Fingerprint (touch)	Fingerprint (touch)
Keys
Left: Volume control, Other; Right: Lock/Unlock key	Left: Volume control; Right: Lock/Unlock key
Colors
Titanium, Pink, Blue	Silver

Cellular

4G (FDD)
Bands 1(2100), 3(1800), 7(2600), 8(900), 20(800 DD), 28(700 APT)	Bands 2(1900), 4(AWS-1), 5(850), 12(700 a), 13(700 c), 25(1900+), 26(850+), 66(AWS-3), 71(600)
4G (TDD)
Bands 38(2600)	Bands 41(2600+)
3G
Bands 1(2100), 2(1900), 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, HSUPA 5.76 Mbit/s, UMTS	LTE-A Cat 7 (300/100 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s
Dual SIM
Yes
SIM type
Nano SIM	Nano SIM
HD Voice
	Yes

Multimedia

Headphones
3.5mm jack	3.5mm jack
Speakers
Earpiece, Loudspeaker	Earpiece, Loudspeaker
Features
DTS:X Virtual Surround
Screen mirroring
Wireless screen share	Wireless screen share
Radio
	FM
Additional microphone(s)
	Noise cancellation

Connectivity & Features

Bluetooth
5.0	5.0
Wi-Fi
802.11 b,g,n,ac,dual-band Wi-Fi Direct, Hotspot	802.11 b,g,n Wi-Fi Direct, Hotspot
USB
Type-C (reversible), Features: Charging	microUSB, USB 2.0, Features: Charging
Hearing aid compatible
	M3/T3
Location
GPS, A-GPS, Glonass, Cell ID, Wi-Fi positioning	GPS, A-GPS, Cell ID, Wi-Fi positioning
Sensors
Accelerometer, Gyroscope, Compass	Accelerometer
Other
NFC	UMA (Wi-Fi Calling)

Regulatory Approval

FCC approval
	Date approved: Sep 14, 2020 FCC ID value: ZNFK300AM
Measured SAR
	Head: 0.47 W/kg Body: 0.91 W/kg Simultaneous Transmission: 1.26 W/kg Wireless Router: 1.02 W/kg

Buyers information

MSRP
	$ 150
In The Box
	Travel Adapter, USB Cable

Availability

Officially announced
Feb 18, 2020

Links

Full specifications
LG K51S Specs	LG K31 Specs