Display
Size:
5.3 inches
6.5 inches
5.7 inches
Resolution:
1280 x 720 pixels, 277 PPI
1560 x 720 pixels, 19.5:9 ratio, 264 PPI
1520 x 720 pixels, 19:9 ratio, 295 PPI
Technology:
IPS LCD
IPS LCD
IPS LCD
Screen-to-body:
69.43 %
79.70 %
77.13 %
Features:
Scratch-resistant glass (Corning Gorilla Glass 3), Ambient light sensor, Proximity sensor
Ambient light sensor, Proximity sensor
Ambient light sensor, Proximity sensor
Hardware
System chip:
Qualcomm Snapdragon 212 8909 v2
MediaTek Helio P22 MT6762
MediaTek Helio P22 MT6762
Processor:
Quad-core, 1300 MHz, ARM Cortex-A7, 28 nm
Octa-core, 2000 MHz, Arm Cortex-A53, 64-bit, 12 nm
Octa-core, 2000 MHz, Arm Cortex-A53, 64-bit, 12 nm
GPU:
Adreno 304
IMG PowerVR GE8320
IMG PowerVR GE8320
RAM:
1.5GB
3GB
2GB
Internal storage:
16GB, available to use: 9.75 GB
32GB, available to use: 18 GB
32GB, available to use: 17 GB
Storage expansion:
microSDXC up to 2000 GB
microSDXC up to 2000 GB
microSDXC up to 32 GB
Device type:
Smartphone
Smartphone
Smartphone
OS:
Android (6.0 Marshmallow), LG UX UI
Android (10)
Android (10)
Battery
Capacity:
4100 mAh
4000 mAh
3000 mAh
Type:
Li - Ion, Not user replaceable
Li - Ion, Not user replaceable
Not user replaceable
Charging:
Fast charging
Camera
Rear:
Single camera
Triple camera
Dual camera
Main camera:
8 MP (Autofocus)
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
Video recording:
1280x720 (HD) (30 fps)
1920x1080 (Full HD)
1920x1080 (Full HD) (30 fps)
Features:
Picture-taking during video recording, Video calling, Video sharing
Picture-taking during video recording
Front:
5 MP
13 MP
5 MP
Video capture:
1920x1080 (Full HD)
1920x1080 (Full HD)
1920x1080 (Full HD)
Design
Dimensions:
5.86 x 2.95 x 0.31 inches (148.9 x 74.9 x 7.9 mm)
6.57 x 3.07 x 0.33 inches (166.9 x 77.9 x 8.4 mm)
5.82 x 2.8 x 0.34 inches (147.8 x 71.1 x 8.6 mm)
Weight:
4.90 oz (139.0 g)
7.17 oz (203.4 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)
Features:
Notification light
Keys:
Left: Volume control; Right: Lock/Unlock key
Left: Volume control; Right: Lock/Unlock key
Left: Volume control; Right: Lock/Unlock key
Colors:
Black, Gold, White
Titan gray
Silver
Cellular
LTE (FDD):
Bands 2(1900), 4(AWS-1), 5(850), 12(700 a)
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)
Bands 2(1900), 4(AWS-1), 5(850), 12(700 a), 13(700 c), 25(1900+), 26(850+), 66(AWS-3), 71(600)
LTE (TDD):
Bands 41(2600+)
Bands 41(2600+)
UMTS:
Bands 5(850), 8(900), 2(1900), 1(2100)
Bands 5(850), 8(900), 4(1700/2100), 2(1900), 1(2100)
Bands 5(850), 8(900), 4(1700/2100), 2(1900), 1(2100)
Data Speed:
LTE, HSPA
LTE-A Cat 6 (300/50 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s
LTE-A Cat 7 (300/100 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s
SIM type:
Nano SIM
Nano SIM
Nano SIM
HD Voice:
Yes
Yes
VoLTE:
Yes
Multimedia
Headphones:
3.5mm jack
3.5mm jack
3.5mm jack
Speakers:
Earpiece, Loudspeaker
Earpiece, Multiple speakers
Earpiece, Loudspeaker
Features:
Album art cover, Background playback
DTS:X Virtual Surround
Screen mirroring:
DLNA, Wireless screen share
Wireless screen share
Wireless screen share
Radio:
FM
FM
FM
Additional microphone(s):
for Noise cancellation
for Noise cancellation
Connectivity & Features
Bluetooth:
4.1
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
802.11 b, g, n; Wi-Fi Direct, Hotspot
USB:
microUSB, USB 2.0
Type-C (reversible), USB 2.0
microUSB, USB 2.0
Features:
Mass storage device, OTG, Charging
Charging
Charging
Location:
GPS, A-GPS, Glonass
GPS, A-GPS, Cell ID, Wi-Fi positioning
GPS, A-GPS, Cell ID, Wi-Fi positioning
Sensors:
Accelerometer, Compass
Accelerometer, Gyroscope, Compass
Accelerometer
Other:
Tethering, Computer sync, OTA sync
UMA (Wi-Fi Calling)
Hearing aid compatible:
M3, T3
M3, T3
Buyers information
Price:
$ 200
$ 150
User Manual:
This is the official LG K51 User Guide in English provided from the manufacturer.
This is the official LG K31 User Guide in English provided from the manufacturer.
In The Box:
Charger, USB Cable, SIM Ejector
Travel Adapter, USB Cable
Availability
Officially announced:
Jun 16, 2016
May 06, 2020
