Samsung Galaxy S9+ vs LG K92 vs Samsung Galaxy A51 5G

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

Display

Size:

6.2 inches
6.7 inches
6.5 inches

Resolution:

2960 x 1440 pixels, 18.5:9 ratio, 531 PPI
2400 x 1080 pixels, 20:9 ratio, 393 PPI
2400 x 1080 pixels, 20:9 ratio, 405 PPI

Technology:

Super AMOLED
IPS LCD
Super AMOLED

Screen-to-body:

83.68 %
84.36 %
87.37 %

Features:

HDR support, Scratch-resistant glass (Corning Gorilla Glass 5), Ambient light sensor, Proximity sensor
60Hz refresh rate, Ambient light sensor, Proximity sensor
60Hz refresh rate, Scratch-resistant glass (Corning Gorilla Glass 3), Ambient light sensor, Proximity sensor

Hardware

System chip:

Qualcomm Snapdragon 845 SDM845
Qualcomm Snapdragon 690 SM6350
Samsung Exynos 980

Processor:

Octa-core, 2800 MHz, Kryo 385, 64-bit, 10 nm
Octa-core, 2000 MHz, Kryo 560, 64-bit, 8 nm
Octa-core, 2200 MHz, ARM Cortex-A77 and ARM Cortex-A55, 64-bit, 8 nm

GPU:

Adreno 630
Adreno 619L
Mali-G76 MP5

RAM:

6GB LPDDR4
6GB LPDDR4
6GB LPDDR4

Internal storage:

64GB
128GB, available to use: 99 GB
128GB, available to use: 105.3 GB

Storage expansion:

microSDXC up to 400 GB
microSDXC up to 2000 GB
microSDXC up to 1000 GB

Device type:

Smartphone
Smartphone
Smartphone

OS:

Android (10, 9.0 Pie, 8.0 Oreo), Samsung One UI
Android (10)
Android (10), Samsung One UI

Battery

Capacity:

3500 mAh
4000 mAh
4500 mAh

Type:

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

Charging:

Qualcomm Quick Charge 2.0, Samsung Adaptive Fast Charging, Qi and Powermat wireless charging
Qualcomm Quick Charge 4
Fast charging

Max charge speed:

Wired: 25.0W

Camera

Rear:

Dual camera
Quad camera
Quad camera

Main camera:

12 MP (OIS, PDAF)
64 MP (PDAF)
48 MP (PDAF)

Specifications:

Aperture size: F1.5/F2.4; Focal length: 26 mm; Sensor size: 1/2.55"; Pixel size: 1.4 μm
Aperture size: F1.8; Focal length: 25 mm; Sensor size: 1/2"; Pixel size: 0.8 μm
Aperture size: F2.0; Focal length: 26 mm; Sensor size: 1/2"; Pixel size: 0.8 μm

Second camera:

12 MP (Telephoto, OIS, Autofocus)
5 MP (Ultra-wide)
12 MP (Ultra-wide)

Specifications:

Optical zoom: 2.0x; Aperture size: F2.4; Focal Length: 52 mm; Sensor size: 1/3.6"; Pixel size: 1 μm
Aperture size: F2.2; Sensor size: 1/5"; Pixel size: 1.12 μm
Aperture size: F2.2; Focal Length: 13 mm; Pixel size: 1.12 μm

Third camera:

2 MP (Macro)
5 MP (Macro)

Specifications:

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

Fourth camera:

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

Specifications:

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

Video recording:

3840x2160 (4K UHD) (60 fps), 1920x1080 (Full HD) (240 fps), 1280x720 (HD) (960 fps)
3840x2160 (4K UHD) (30 fps)
3840x2160 (4K UHD) (30 fps), 1920x1080 (Full HD) (120 fps), 1280x720 (HD) (480 fps)

Features:

HDR, Time-lapse video, Hyperlapse, Continuous autofocus, Object tracking, Picture-taking during video recording, EIS, Video calling, Video sharing
Time-lapse video, EIS
Hyperlapse, EIS

Front:

8 MP (Autofocus, HDR)
16 MP
32 MP (HDR)

Video capture:

2560x1440 (QHD) (30 fps)
1920x1080 (Full HD)
1920x1080 (Full HD)

Design

Dimensions:

6.22 x 2.91 x 0.33 inches (158.1 x 73.8 x 8.5 mm)
6.55 x 3.04 x 0.33 inches (166.4 x 77.2 x 8.4 mm)
6.26 x 2.90 x 0.34 inches (158.9 x 73.6 x 8.7 mm)

Weight:

6.67 oz (189.0 g)
7.14 oz (202.0 g)
6.60 oz (187.0 g)

Materials:

Back: Glass (Corning Gorilla Glass 5); Frame: Aluminum
Back: Plastic; Frame: Aluminum

Resistance:

Water, Dust; IP68

Biometrics:

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

Features:

Notification light

Keys:

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

Colors:

Midnight black, Coral blue, Titanium gray, Lilac purple, Burgundy red, Sunrise gold, Ice blue, Polaris blue
Titan gray
Prism cube black

Cellular

5G:

SA, NSA
n41, n71, SA, NSA

LTE (FDD):

Bands 1(2100), 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 8(900), 12(700 a), 13(700 c), 14(700 PS), 17(700 b), 18(800 Lower), 19(800 Upper), 20(800 DD), 25(1900+), 26(850+), 28(700 APT), 29(700 d), 30(2300 WCS), 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 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)

LTE (TDD):

Bands 38(2600), 39(1900+), 40(2300), 41(2600+), 46
Bands 38(2600), 39(1900+), 40(2300), 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), 4(1700/2100), 2(1900), 1(2100)

Data Speed:

LTE-A Pro Cat 18 (1200/150 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA
LTE-A, HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s
LTE-A Pro Cat 16 (1000/150 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s

SIM type:

Nano SIM
Nano SIM

HD Voice:

Yes
Yes

Multimedia

Headphones:

3.5mm jack
3.5mm jack
3.5mm jack

Speakers:

Earpiece, Multiple speakers
Earpiece, Multiple speakers
Earpiece, Loudspeaker

Features:

32-Bit DAC, Dolby Atmos, aptX-HD
aptX
Dolby Atmos

Screen mirroring:

Wireless screen share
DLNA, 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
5.0

Wi-Fi:

802.11 a, b, g, n, ac, dual-band; MIMO, Wi-Fi Direct, 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:

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

Features:

Charging, OTG, Video out
Charging
Charging, OTG

Location:

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

Sensors:

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

Other:

NFC, ANT+
NFC, UMA (Wi-Fi Calling)
NFC, ANT+

Hearing aid compatible:

M4, T3
M3, T3

Regulatory Approval

FCC approval:

Date approved:

Jan 11, 2018
Oct 01, 2020
Jul 15, 2020

FCC ID value:

A3LSMG965U link
ZNFK920AM link
A3LSMA516U link

Measured SAR:

Head:

0.36 W/kg
1.13 W/kg
1.18 W/kg

Body:

0.79 W/kg
0.57 W/kg
1.20 W/kg

Simultaneous Transmission:

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

Wireless Router:

1.04 W/kg
0.67 W/kg
1.37 W/kg

Phablet:

3.94 W/kg
3.53 W/kg

Buyers information

Price:

$ 840
$ 395
$ 500

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:

Feb 25, 2018
Oct 29, 2020
Apr 08, 2020
This copy is for your personal, non-commercial use only. You can order presentation-ready copies for distribution to your colleagues, clients or customers at https://www.parsintl.com/phonearena or use the Reprints & Permissions tool that appears at the bottom of each web page. Visit https://www.parsintl.com/ for samples and additional information.
FCC OKs Cingular\'s purchase of AT&T Wireless