Samsung Galaxy Express 3 vs Samsung Galaxy A51 5G vs LG K92

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

Display

Size:

4.5 inches
6.5 inches
6.7 inches

Resolution:

800 x 480 pixels, 5:3 ratio, 207 PPI
2400 x 1080 pixels, 20:9 ratio, 405 PPI
2400 x 1080 pixels, 20:9 ratio, 393 PPI

Technology:

Super AMOLED
Super AMOLED
IPS LCD

Screen-to-body:

62.69 %
87.37 %
84.36 %

Features:

Ambient light sensor, Proximity sensor
60Hz refresh rate, Scratch-resistant glass (Corning Gorilla Glass 3), Ambient light sensor, Proximity sensor
60Hz refresh rate, Ambient light sensor, Proximity sensor

Hardware

System chip:

Spreadtrum SC9830
Samsung Exynos 980
Qualcomm Snapdragon 690 SM6350

Processor:

Quad-core, 1300 MHz, Cortex-A7, 28 nm
Octa-core, 2200 MHz, ARM Cortex-A77 and ARM Cortex-A55, 64-bit, 8 nm
Octa-core, 2000 MHz, Kryo 560, 64-bit, 8 nm

GPU:

Mali-400
Mali-G76 MP5
Adreno 619L

RAM:

1GB
6GB LPDDR4
6GB LPDDR4

Internal storage:

8GB
128GB, available to use: 105.3 GB
128GB, available to use: 99 GB

Storage expansion:

microSDXC up to 128 GB
microSDXC up to 1000 GB
microSDXC up to 2000 GB

Device type:

Smartphone
Smartphone
Smartphone

OS:

Android (6.0 Marshmallow)
Android (10), Samsung One UI
Android (10)

Battery

Capacity:

2050 mAh
4500 mAh
4000 mAh

Type:

User replaceable
Li - Polymer, Not user replaceable
Li - Polymer, Not user replaceable

Charging:

Fast charging
Qualcomm Quick Charge 4

Max charge speed:

Wired: 25.0W

Camera

Rear:

Single camera
Quad camera
Quad camera

Main camera:

5 MP (Autofocus)
48 MP (PDAF)
64 MP (PDAF)

Specifications:

Aperture size: F2.2
Aperture size: F2.0; Focal length: 26 mm; Sensor size: 1/2"; Pixel size: 0.8 μm
Aperture size: F1.8; Focal length: 25 mm; Sensor size: 1/2"; Pixel size: 0.8 μm

Second camera:

12 MP (Ultra-wide)
5 MP (Ultra-wide)

Specifications:

Aperture size: F2.2; Focal Length: 13 mm; Pixel size: 1.12 μm
Aperture size: F2.2; Sensor size: 1/5"; Pixel size: 1.12 μm

Third camera:

5 MP (Macro)
2 MP (Macro)

Specifications:

Aperture size: F2.4; Focal Length: 40 mm
Aperture size: F2.4; Pixel size: 1.75 μm

Fourth camera:

5 MP (Depth information)
2 MP (Depth information)

Specifications:

Aperture size: F2.2; Sensor size: 1/5"; Pixel size: 1.12 μm
Aperture size: F2.4; Pixel size: 1.75 μm

Video recording:

1280x720 (HD) (30 fps)
3840x2160 (4K UHD) (30 fps), 1920x1080 (Full HD) (120 fps), 1280x720 (HD) (480 fps)
3840x2160 (4K UHD) (30 fps)

Features:

Video calling
Hyperlapse, EIS
Time-lapse video, EIS

Front:

2 MP
32 MP (HDR)
16 MP

Video capture:

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

Design

Dimensions:

5.22 x 2.73 x 0.35 inches (132.6 x 69.3 x 8.9 mm)
6.26 x 2.90 x 0.34 inches (158.9 x 73.6 x 8.7 mm)
6.55 x 3.04 x 0.33 inches (166.4 x 77.2 x 8.4 mm)

Weight:

4.62 oz (131.0 g)
6.60 oz (187.0 g)
7.14 oz (202.0 g)

Materials:

Back: Plastic; Frame: Plastic
Back: Plastic; Frame: Aluminum

Biometrics:

2D Face unlock, In-screen fingerprint
Fingerprint (touch)

Features:

Touch sensitive control keys

Keys:

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

Colors:

Prism cube black
Titan gray

Cellular

5G:

n41, n71, SA, NSA
SA, NSA

LTE (FDD):

Bands 1(2100), 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 12(700 a)
Bands 1(2100), 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 8(900), 12(700 a), 13(700 c), 17(700 b), 20(800 DD), 25(1900+), 26(850+), 28(700 APT), 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)

LTE (TDD):

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

UMTS:

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

Data Speed:

LTE, HSPA
LTE-A Pro Cat 16 (1000/150 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

SIM type:

Nano SIM

HD Voice:

Yes
Yes

Multimedia

Headphones:

3.5mm jack
3.5mm jack
3.5mm jack

Speakers:

Earpiece, Loudspeaker
Earpiece, Loudspeaker
Earpiece, Multiple speakers

Features:

Album art cover, Background playback
Dolby Atmos
aptX

Screen mirroring:

Wireless screen share
Wireless screen share
DLNA, Wireless screen share

Radio:

FM
FM

Additional microphone(s):

for Noise cancellation

Connectivity & Features

Bluetooth:

4.1
5.0
5.0

Wi-Fi:

802.11 b, g, n; Hotspot
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:

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

Features:

Charging, Mass storage device
Charging, OTG
Charging

Location:

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

Sensors:

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

Other:

Tethering, Computer sync, OTA sync
NFC, ANT+
NFC, UMA (Wi-Fi Calling)

Hearing aid compatible:

M3, T3
M3, T3
M4, T3

Regulatory Approval

FCC approval:

Date approved:

Jul 19, 2016
Jul 15, 2020
Oct 01, 2020

FCC ID value:

A3LSMJ120A link
A3LSMA516U link
ZNFK920AM link

Measured SAR:

Head:

0.99 W/kg
1.18 W/kg
1.13 W/kg

Body:

0.72 W/kg
1.20 W/kg
0.57 W/kg

Simultaneous Transmission:

1.25 W/kg
3.25 W/kg
1.59 W/kg

Wireless Router:

1.06 W/kg
1.37 W/kg
0.67 W/kg

Phablet:

3.53 W/kg

Buyers information

Price:

$ 500
$ 395

User Manual:

This is the official Samsu​ng Galaxy A51 5G User Guide in English provided from the manufacturer.

In The Box:

A to C USB Cable, Wall Adapter, SIM Pin/Ejector, Quick Start Guide, Terms & Conditions

Availability

Officially announced:

Apr 08, 2020
Oct 29, 2020
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