LG K51 vs LG K92 vs Samsung Galaxy A20

Compare phone and tablet specifications of up to three devices at once.

Display

Size:

6.5 inches
6.7 inches
6.4 inches

Resolution:

1560 x 720 pixels, 19.5:9 ratio, 264 PPI
2400 x 1080 pixels, 20:9 ratio, 393 PPI
1560 x 720 pixels, 19.5:9 ratio, 268 PPI

Technology:

IPS LCD
IPS LCD
Super AMOLED

Screen-to-body:

79.70 %
84.36 %
84.95 %

Features:

Ambient light sensor, Proximity sensor
60Hz refresh rate, Ambient light sensor, Proximity sensor
Proximity sensor

Hardware

System chip:

MediaTek Helio P22 MT6762
Qualcomm Snapdragon 690 SM6350
Samsung Exynos 7884

Processor:

Octa-core, 2000 MHz, Arm Cortex-A53, 64-bit, 12 nm
Octa-core, 2000 MHz, Kryo 560, 64-bit, 8 nm
Octa-core, 1800 MHz, ARM Cortex-A73 and ARM Cortex-A53, 64-bit, 14 nm

GPU:

IMG PowerVR GE8320
Adreno 619L
Mali-G71 MP2

RAM:

3GB
6GB LPDDR4
3GB LPDDR4

Internal storage:

32GB, available to use: 18 GB
128GB, available to use: 99 GB
32GB, available to use: 20.3 GB

Storage expansion:

microSDXC up to 2000 GB
microSDXC up to 2000 GB
microSDXC up to 512 GB

Device type:

Smartphone
Smartphone
Smartphone

OS:

Android (10)
Android (10)
Android (10, 9.0 Pie), Samsung One UI

Battery

Capacity:

4000 mAh
4000 mAh
4000 mAh

Type:

Li - Ion, Not user replaceable
Li - Polymer, Not user replaceable
Not user replaceable

Charging:

Qualcomm Quick Charge 4
Samsung Adaptive Fast Charging

Camera

Rear:

Triple camera
Quad camera
Dual camera

Main camera:

13 MP (PDAF)
64 MP (PDAF)
13 MP (Autofocus)

Specifications:

Aperture size: F1.8; Sensor size: 1/3"; Pixel size: 1.12 μm
Aperture size: F1.8; Focal length: 25 mm; Sensor size: 1/2"; Pixel size: 0.8 μm
Aperture size: F1.9; Focal length: 27 mm; Sensor size: 1/3.1"; Pixel size: 1.12 μm

Second camera:

5 MP (Ultra-wide)
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
Aperture size: F2.2; Focal Length: 13 mm; Sensor size: 1/5"; Pixel size: 1.12 μm

Third camera:

2 MP (Depth information)
2 MP (Macro)

Specifications:

Sensor size: 1/5"; Pixel size: 1.75 μm
Aperture size: F2.4; Pixel size: 1.75 μm

Fourth camera:

2 MP (Depth information)

Specifications:

Aperture size: F2.4; Pixel size: 1.75 μm

Video recording:

1920x1080 (Full HD)
3840x2160 (4K UHD) (30 fps)
1920x1080 (Full HD) (30 fps)

Features:

Picture-taking during video recording
Time-lapse video, EIS

Front:

13 MP
16 MP
8 MP

Video capture:

1920x1080 (Full HD)
1920x1080 (Full HD)

Design

Dimensions:

6.57 x 3.07 x 0.33 inches (166.9 x 77.9 x 8.4 mm)
6.55 x 3.04 x 0.33 inches (166.4 x 77.2 x 8.4 mm)
6.24 x 2.94 x 0.31 inches (158.4 x 74.7 x 7.8 mm)

Weight:

7.17 oz (203.4 g)
7.14 oz (202.0 g)
5.96 oz (169.0 g)

Materials:

Back: Plastic

Resistance:

Yes; MIL-STD-810 certified

Biometrics:

Fingerprint (touch)
Fingerprint (touch)
2D Face unlock, Fingerprint (touch)

Keys:

Left: Volume control; Right: Lock/Unlock key
Left: Volume control; Right: Lock/Unlock key
Right: Volume control, Lock/Unlock key

Colors:

Titan gray
Titan gray
Black,Deep blue, Red

Cellular

5G:

SA, NSA

LTE (FDD):

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 1(2100), 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 12(700 a), 14(700 PS), 20(800 DD), 29(700 d), 30(2300 WCS), 66(AWS-3)
Bands 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 13(700 c), 20(800 DD), 28(700 APT), 66(AWS-3)

LTE (TDD):

Bands 41(2600+)
Bands 38(2600), 39(1900+), 40(2300), 41(2600+)

UMTS:

Bands 5(850), 8(900), 4(1700/2100), 2(1900), 1(2100)
Bands 5(850), 2(1900), 1(2100)
Bands 5(850), 8(900), 2(1900), 1(2100)

Data Speed:

LTE-A Cat 6 (300/50 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s
LTE-A, 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
Nano SIM

HD Voice:

Yes
Yes

VoLTE:

Yes

Multimedia

Headphones:

3.5mm jack
3.5mm jack
3.5mm jack

Speakers:

Earpiece, Multiple speakers
Earpiece, Multiple speakers
Earpiece, Loudspeaker

Features:

DTS:X Virtual Surround
aptX
Dolby Atmos

Screen mirroring:

Wireless screen share
DLNA, Wireless screen share
Wireless screen share

Radio:

FM

Additional microphone(s):

for Noise cancellation
for Noise cancellation

Connectivity & Features

Bluetooth:

5.0
5.0
5.0

Wi-Fi:

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
802.11 a, b, g, n, ac; Wi-Fi Direct, Hotspot

USB:

Type-C (reversible), USB 2.0
Type-C (reversible), USB 3.1
Type-C (reversible), USB 2.0

Features:

Charging
Charging
Charging

Location:

GPS, A-GPS, Cell ID, Wi-Fi positioning
GPS, A-GPS, Cell ID, Wi-Fi positioning
GPS, A-GPS, Glonass, Galileo, Cell ID, Wi-Fi positioning

Sensors:

Accelerometer, Gyroscope, Compass
Accelerometer, Gyroscope, Compass, Heart rate, Barometer
Accelerometer, Gyroscope, Compass, Hall (for flip covers)

Other:

NFC, UMA (Wi-Fi Calling)

Hearing aid compatible:

M3, T3
M4, T3

Regulatory Approval

FCC approval:

Date approved:

Oct 01, 2020
Jun 19, 2019

FCC ID value:

ZNFK920AM link
A3LSMA205U link

Measured SAR:

Head:

1.13 W/kg
1.09 W/kg

Body:

0.57 W/kg
0.60 W/kg

Simultaneous Transmission:

1.59 W/kg
1.37 W/kg

Wireless Router:

0.67 W/kg
1.00 W/kg

Phablet:

3.53 W/kg
3.94 W/kg

Buyers information

Price:

$ 200
$ 395
$ 250

User Manual:

This is the official LG K51 User Guide in English provided from the manufacturer.

In The Box:

Charger, USB Cable, SIM Ejector

Availability

Officially announced:

May 06, 2020
Oct 29, 2020
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