Display
Size:
5.7 inches
6.5 inches
Resolution:
1520 x 720 pixels, 19:9 ratio, 295 PPI
1560 x 720 pixels, 19.5:9 ratio, 264 PPI
Technology:
IPS LCD
IPS LCD
Screen-to-body:
77.13 %
79.70 %
Features:
Ambient light sensor, Proximity sensor
Ambient light sensor, Proximity sensor
Hardware
System chip:
MediaTek Helio P22 MT6762 (12 nm)
MediaTek Helio P22 MT6762 (12 nm)
Processor:
Octa-core, 2000 MHz, Arm Cortex-A53, 64-bit
Octa-core, 2000 MHz, Arm Cortex-A53, 64-bit
GPU:
IMG PowerVR GE8320
IMG PowerVR GE8320
RAM:
2GB
3GB
Internal storage:
32GB, available to use: 17 GB
32GB, available to use: 18 GB
Storage expansion:
microSDXC up to 32 GB
microSDXC up to 2000 GB
Device type:
Smartphone
Smartphone
OS:
Android (10)
Android (10)
Battery
Capacity:
3000 mAh
4000 mAh
Type:
Not user replaceable
Li - Ion, Not user replaceable
Camera
Rear:
Dual camera
Triple camera
Main camera:
13 MP (PDAF)
13 MP (PDAF)
Specifications:
Aperture size: F1.8; Sensor size: 1/3"; Pixel size: 1.12 μm
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
Aperture size: F2.2; Sensor size: 1/5"; Pixel size: 1.12 μm
Third camera:
2 MP (Depth information)
Specifications:
Sensor size: 1/5"; Pixel size: 1.75 μm
Flash:
LED
LED
Video recording:
1920x1080 (Full HD) (30 fps)
1920x1080 (Full HD)
Features:
Picture-taking during video recording
Front:
5 MP
13 MP
Video capture:
1920x1080 (Full HD)
1920x1080 (Full HD)
Design
Dimensions:
5.82 x 2.8 x 0.34 inches (147.8 x 71.1 x 8.6 mm)
6.57 x 3.07 x 0.33 inches (166.9 x 77.9 x 8.4 mm)
Weight:
5.15 oz (146.0 g)
7.17 oz (203.4 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; Right: Lock/Unlock key
Left: Volume control; Right: Lock/Unlock key
Colors:
Silver
Titan gray
Cellular
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)
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 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 7 (300/100 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
Yes
VoLTE:
Yes
Multimedia
Headphones:
3.5mm jack
3.5mm jack
Speakers:
Earpiece, Loudspeaker
Earpiece, Multiple speakers
Features:
DTS:X Virtual Surround
Screen mirroring:
Wireless screen share
Wireless screen share
Radio:
FM
FM
Additional microphone(s):
for Noise cancellation
for Noise cancellation
Connectivity & Features
Bluetooth:
5.0
5.0
Wi-Fi:
802.11 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 (reversible), USB 2.0
Features:
Charging
Charging
Location:
GPS, A-GPS, Cell ID, Wi-Fi positioning
GPS, A-GPS, Cell ID, Wi-Fi positioning
Sensors:
Accelerometer
Accelerometer, Gyroscope, Compass
Other:
UMA (Wi-Fi Calling)
Hearing aid compatible:
M3, T3
M3, T3
Regulatory Approval
FCC approval:
Date approved:
Sep 14, 2020
Jun 16, 2020
FCC ID value:
ZNFK300AM
ZNFL555DL
Measured SAR:
Head:
0.47 W/kg
0.66 W/kg
Body:
0.91 W/kg
1.20 W/kg
Simultaneous Transmission:
1.26 W/kg
1.59 W/kg
Wireless Router:
1.02 W/kg
1.27 W/kg
Phablet:
3.96 W/kg
Buyers information
Price:
$ 150
$ 200
User Manual:
This is the official LG K31 User Guide in English provided from the manufacturer.
This is the official LG K51 User Guide in English provided from the manufacturer.
In The Box:
Travel Adapter, USB Cable
Charger, USB Cable, SIM Ejector
Availability
Officially announced:
May 06, 2020
FCC OKs Cingular\'s purchase of AT&T Wireless