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LG G8X ThinQ vs Samsung Galaxy A51 vs LG G8 ThinQ

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

Comparison mode:

Display

Size:

6.4 inches
6.5 inches
6.1 inches

Resolution:

2340 x 1080 pixels, 19.5:9 ratio, 403 PPI
2400 x 1080 pixels, 20:9 ratio, 405 PPI
3120 x 1440 pixels, 19.5:9 ratio, 563 PPI

Technology:

OLED
Super AMOLED
OLED

Refresh rate:

60Hz

Screen-to-body:

83.41 %
87.37 %
83.66 %

Peak brightness:

600 cd/m2 (nit)

Features:

HDR support, Scratch-resistant glass (Corning Gorilla Glass 6), Ambient light sensor, Proximity sensor
Scratch-resistant glass (Corning Gorilla Glass 3), Ambient light sensor, Proximity sensor
HDR support, Scratch-resistant glass (Corning Gorilla Glass 5), Ambient light sensor, Proximity sensor

Hardware

System chip:

Qualcomm Snapdragon 855 SM8150
Samsung Exynos 9611
Qualcomm Snapdragon 855

Processor:

Octa-core, 2840 MHz, Kryo 485, 64-bit, 7 nm
Octa-core, 2300 MHz, ARM Cortex-A73 and ARM Cortex-A53, 64-bit, 10 nm
Octa-core, 2840 MHz, Kryo 485, 64-bit, 7 nm

GPU:

Adreno 640
Mali-G72 MP3
Adreno 640

RAM:

6GB LPDDR4
4GB LPDDR4
6GB LPDDR4

Internal storage:

128GB, available to use: 102.8 GB
128GB, available to use: 105.9 GB
128GB, available to use: 106 GB

Storage expansion:

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

Device type:

Smartphone
Smartphone
Smartphone

OS:

Android (10, 9.0 Pie)
Android (11, 10), Samsung One UI
Android (9.0 Pie)

Battery

Capacity:

4000 mAh
4000 mAh
3500 mAh

Type:

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

Battery life test results:

Charging:

Qualcomm Quick Charge 4, Qi wireless charging
Fast charging
Qualcomm Quick Charge 3.0, USB Power Delivery, Qi wireless charging

Camera

Rear:

Dual camera
Quad camera
Dual camera

Main camera:

12 MP (OIS, Laser and PDAF)
48 MP (PDAF)
12 MP (OIS, PDAF)

Specifications:

Aperture size: F1.8; Focal length: 25 mm; Sensor size: 1/2.55"; Pixel size: 1.4 μm
Aperture size: F2.0; Focal length: 26 mm; Sensor size: 1/2"; Pixel size: 0.8 μm
Aperture size: F1.5; Focal length: 27 mm; Sensor size: 1/2.6"; Pixel size: 1.4 μm

Second camera:

13 MP (Ultra-wide)
12 MP (Ultra-wide)
16 MP (Ultra-wide)

Specifications:

Aperture size: F2.4; Focal Length: 16 mm; Sensor size: 1/2.8"; Pixel size: 1 μm
Aperture size: F2.2; Focal Length: 13 mm; Pixel size: 1.12 μm
Aperture size: F1.9; Focal Length: 16 mm; Sensor size: 1/3.1"; Pixel size: 1 μm

Third camera:

5 MP (Macro)

Specifications:

Aperture size: F2.4; Focal Length: 40 mm

Fourth camera:

5 MP (Depth information)

Specifications:

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

Video recording:

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

Features:

OIS, HDR, Time-lapse video, Object tracking, EIS
Hyperlapse, EIS
HDR, Time-lapse video, EIS, Video calling, Video sharing

Front:

32 MP
32 MP (HDR)
8 MP (Dual-Camera, Autofocus)

Video capture:

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

Design

Dimensions:

6.27 x 2.98 x 0.33 inches (159.3 x 75.8 x 8.4 mm)
6.24 x 2.90 x 0.31 inches (158.5 x 73.6 x 7.9 mm)
5.98 x 2.83 x 0.33 inches (151.9 x 71.8 x 8.4 mm)

Weight:

6.77 oz (192.0 g)
6.07 oz (172.0 g)
5.89 oz (167.0 g)

Materials:

Back: Glass (Corning Gorilla Glass 5); Frame: Aluminum
Back: Plastic; Frame: Plastic
Back: Glass (Corning Gorilla Glass 6); Frame: Aluminum

Resistance:

Water, Dust; IP68; MIL-STD-810 certified
Water, Dust; IP68; MIL-STD-810 certified

Biometrics:

In-screen fingerprint
2D Face unlock, In-screen fingerprint
3D Face unlock, Fingerprint (touch)

Keys:

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

Colors:

Aurora black
Prism Crush black, Prism Crush white, Prism Crush pink, Prism Crush blue
Aurora black, Platinum gray, Carmine red

Cellular

LTE (FDD):

Bands 1(2100), 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 8(900), 12(700 a), 13(700 c), 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), 8(900), 12(700 a), 13(700 c), 14(700 PS), 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), 8(900), 12(700 a), 13(700 c), 14(700 PS), 17(700 b), 20(800 DD), 25(1900+), 26(850+), 28(700 APT), 29(700 d), 30(2300 WCS), 66(AWS-3), 71(600)

LTE (TDD):

Bands 40(2300), 41(2600+), 46
Bands 38(2600), 39(1900+), 41(2600+)
Bands 38(2600), 39(1900+), 40(2300), 41(2600+), 46

UMTS:

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

Data Speed:

LTE-A, 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 Pro Cat 20 (2000/150 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

Multimedia

Headphones:

3.5mm jack
3.5mm jack
3.5mm jack

Speakers:

Earpiece, Multiple speakers
Earpiece, Loudspeaker
Earpiece, Multiple speakers

Features:

32-Bit DAC, DTS:X Virtual Surround, aptX-HD
Dolby Atmos
32-Bit DAC, DTS:X Virtual Surround, aptX-HD

Screen mirroring:

Wireless screen share
Wireless screen share
DLNA, Wireless screen share, MirrorLink

Radio:

FM
FM
FM

Additional microphone(s):

for Noise cancellation
for Noise cancellation
for Noise cancellation, Video recording

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, dual-band; MIMO, Wi-Fi Direct, Hotspot

USB:

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

Features:

Charging
Charging, OTG
Charging, OTG

Location:

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

Sensors:

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

Other:

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

Hearing aid compatible:

M4, T3
M4, T3

Regulatory Approval

FCC approval:

Date approved:

Sep 18, 2019
Nov 28, 2019
Feb 15, 2019

FCC ID value:

ZNFG850UM
A3LSMA515FN
ZNFG820UM

Measured SAR:

Head:

0.49 W/kg
0.89 W/kg
0.98 W/kg

Body:

1.01 W/kg
1.18 W/kg
0.95 W/kg

Simultaneous Transmission:

1.59 W/kg
1.56 W/kg
1.59 W/kg

Wireless Router:

1.28 W/kg
1.12 W/kg
1.29 W/kg

Phablet:

3.82 W/kg
2.76 W/kg
3.88 W/kg

Buyers information

Price:

$ 700
$ 400
$ 820

User Manual:

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

In The Box:

USB Type-C cable, Quick Charge 3.0 charger, SIM tray opener, Clear case, Stereo headset

Availability

Officially announced:

Sep 06, 2019
Dec 12, 2019
Feb 24, 2019
FCC OKs Cingular\'s purchase of AT&T Wireless