LG G6 vs Samsung Galaxy S21 Ultra Specs Comparison

Compare mobile phone specifications of up to three devices at once. Our specs comparison tool helps you find and compare the perfect phone for your needs.

8.7
LG G6
9.1
Samsung Galaxy S21 Ultra
LG G6 Samsung Galaxy S21 Ultra
Released · Mar 10, 2017
Released · Jan 29, 2021
5.7-inch · 2880x1440px
6.8-inch · 3200x1440px
Dual camera
Quad camera
4GB · 32GB
12GB · 128GB
3300 mAh
5000 mAh
Check prices

Design

Dimensions
5.86 x 2.83 x 0.31 inches
148.9 x 71.9 x 7.9 mm
6.50 x 2.98 x 0.35 inches (~0.37 inches with camera bump)
165.1 x 75.6 x 8.9 mm (~9.4 mm with camera bump)
Weight
5.75 oz (163.0 g) 8.04 oz (229.0 g)
Materials
Back: Glass (Corning Gorilla Glass 3)
Frame: Aluminum
Back: Glass (Corning Gorilla Glass Victus)
Frame: Aluminum
Resistance
Water, Dust, Shock; IP68; MIL-STD-810 certified Water, Dust; IP68
Biometrics
Fingerprint (touch) 2D Face unlock, Ultrasonic in-screen fingerprint
Keys
Left: Volume control Right: Volume control, Lock/Unlock key
Colors
Black, Silver Phantom black, Silver

Display

Size
5.7-inch 6.8-inch
Resolution
2880x1440px, 561 PPI 3200x1440px, 20:9 ratio, 516 PPI
Technology
IPS LCD Dynamic AMOLED
Refresh rate
120Hz (adaptable)
Screen-to-body
79.47 % 89.33 %
Peak brightness
1500 cd/m2 (nit)
Features
HDR support, Scratch-resistant glass (Corning Gorilla Glass 5), Ambient light sensor, Proximity sensor HDR support, Scratch-resistant glass (Corning Gorilla Glass Victus), Ambient light sensor, Proximity sensor

Hardware

System chip
Qualcomm Snapdragon 821 MSM8996 Pro (14 nm) Qualcomm Snapdragon 888 SM8350 (5 nm)
Processor
Quad-core
2350 MHz
Kryo
Octa-core
1x 2.84GHz Kryo 680 + 3x 2.42GHz Kryo 680 + 4x 1.80GHz Kryo 680
GPU
Adreno 530 Adreno 660
RAM
4GB 12GB (LPDDR5)
Internal storage
32GB, available to use: 20.56 GB 128GB (UFS 3.1)
Storage expansion
microSDXC up to 2000 GB not expandable
OS
Android (8.0 Oreo, 7.0 Nougat), LG UX UI Android (14, 13, 12, 11), One UI

Battery

Capacity
3300 mAh 5000 mAh
Type
Li - Polymer Li - Polymer
Charging
Qualcomm Quick Charge 3.0 Qualcomm Quick Charge 2.0, USB Power Delivery, Samsung Adaptive Fast Charging, Qi and Powermat wireless charging, Reverse wireless charging
Charge speed
Wired: 25.0W
Wireless: 15.0W
PhoneArena Battery Tests
Battery Life Estimate
Untested
Browsing
Untested
Video
Untested
Gaming
Untested
Battery Life Estimate
6h 15min
Browsing
14h 43min
Video
8h 52min
Gaming
8h 40min

Camera

Rear
Dual camera Quad camera
Main camera
13 MP (OIS, PDAF, CMOS image sensor)
Aperture size: F1.8
Focal length: 29 mm
Sensor size: 1/3.06"
Pixel size: 1.12 μm
108 MP (OIS, Laser and PDAF)
Aperture size: F1.8
Focal length: 24 mm
Sensor size: 1/1.33"
Pixel size: 0.8 μm
Second camera
13 MP (Ultra-wide)
Aperture size: F2.4
Focal Length: 12 mm
12 MP (Ultra-wide, PDAF)
Aperture size: F2.2
Focal Length: 13 mm
Sensor size: 1/2.55"
Pixel size: 1.4 μm
Third camera
10 MP (Telephoto, OIS, PDAF)
Optical zoom: 3.0x
Aperture size: F2.4
Focal Length: 70 mm
Sensor size: 1/3.2"
Pixel size: 1.22 μm
Fourth camera
10 MP (Telephoto, Periscope, OIS, PDAF)
Optical zoom: 3.0x
Aperture size: F2.4
Focal Length: 70 mm
Sensor size: 1/3.2"
Pixel size: 1.22 μm
Flash
Dual LED LED
Video recording
3840x2160 (4K UHD) (30 fps), 1920x1080 (Full HD) (60 fps), 1280x720 (HD)
Time-lapse video, Picture-taking during video recording, EIS, Video calling, Video sharing
7680x4320 (8K UHD) (24 fps), 3840x2160 (4K UHD) (60 fps), 1920x1080 (Full HD) (240 fps), 1280x720 (HD) (960 fps)
OIS, HDR, Hyperlapse, Video light, EIS
Front
5 MP (Wide Angle) 40 MP (PDAF, HDR), Video capture: 3840x2160 (4K UHD) (60 fps)

Connectivity & Features

Bluetooth
4.2 5.1
WLAN
802.11 a,b,g,n,ac,dual-band
Wi-Fi Direct, Hotspot
802.11 a,b,g,n,ac,ax(Wi-Fi 6),dual-band
MIMO, Wi-Fi Direct, Hotspot
USB
Type-C, USB 2.0 Type-C, USB 3.2
Hearing aid compatible
M4/T3 M3/T3
Location
GPS, A-GPS GPS, A-GPS, Glonass, Galileo, BeiDou, Cell ID, Wi-Fi positioning
Sensors
Accelerometer, Gyroscope, Compass, Barometer Accelerometer, Gyroscope, Compass, Hall (for flip covers), Barometer
Other
NFC, UMA (Wi-Fi Calling), Tethering, Computer sync, OTA sync NFC, ANT+

Multimedia

Headphones
3.5mm jack No 3.5mm jack
Speakers
Earpiece, Loudspeaker Earpiece, Multiple speakers
Features
32-Bit DAC, aptX-HD 32-Bit DAC, Dolby Atmos, aptX, Dolby Digital, Dolby Digital Plus
Screen mirroring
DLNA,Wireless screen share Wireless screen share
Radio
FM, Stereo, RDS
Additional microphone(s)
Noise cancellation, Video recording Noise cancellation, Video recording

Cellular

5G
Bands n2, n5, n12, n25, n41, n66, n71, n77, n260, n261, SA, NSA, Sub-6, mmWave
4G (FDD)
Bands 1(2100), 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 12(700 a), 13(700 c), 17(700 b), 20(800 DD), 25(1900+) 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), 18(800 Lower), 19(800 Upper), 20(800 DD), 25(1900+), 26(850+), 28(700 APT), 30(2300 WCS), 66(AWS-3), 71(600)
4G (TDD)
Bands 38(2600), 39(1900+), 40(2300), 41(2600+), 46, 48(3600)
3G
Bands 5(850), 8(900), 4(1700/2100), 2(1900), 1(2100) Bands 1(2100), 2(1900), 4(1700/2100), 5(850), 8(900)
Data Speed
LTE-A Cat 11 (600/75 Mbit/s), HSPA, HSUPA, UMTS LTE-A Pro Cat 20 (2000/150 Mbit/s)
SIM type
Nano SIM Nano SIM
HD Voice
Yes
VoLTE
Yes

Phone Features

Notifications
Haptic feedback
Other features
Voice dialing, Voice commands, Voice recording

Regulatory Approval

FCC approval
Date approved: Dec 22, 2020
FCC ID value: A3LSMG998U
Measured SAR
Head: 0.77 W/kg
Body: 1.02 W/kg
Simultaneous Transmission: 1.59 W/kg
Wireless Router: 1.16 W/kg
Phablet: 3.15 W/kg

Buyers information

MSRP
$ 1200 / € 1399
In The Box
C to C Data Cable, Ejection Pin

Availability

Officially announced
Feb 26, 2017 Jan 14, 2021

Alternative variants

with 64 GB storage
Internal storage 64GB, available to use: 50.7 GB
with 256GB storage
Internal storage 256GB
Colors Phantom black
MSRP $ 1250
for Verizon Wireless
OS Android (9.0 Pie)
4G (FDD) Bands 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 13(700 c), 20(800 DD)
3G Bands 5(850), 8(900), 2(1900), 1(2100)
FCC approval Date approved: Feb 27, 2017
FCC ID value: ZNFVS988
Measured SAR Head: 0.30 W/kg
Body: 0.49 W/kg
Simultaneous Transmission: 1.59 W/kg
Wireless Router: 0.48 W/kg
with 512GB storage
RAM 16GB
Internal storage 512GB
Colors Phantom black
MSRP $ 1380
for T-Mobile
4G (FDD) Bands 1(2100), 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 12(700 a), 13(700 c), 20(800 DD)
for Europe
System chip Samsung Exynos 2100 (5 nm)
Processor Octa-core
1x 2.91GHz Cortex-X1 + 3x 2.81GHz Cortex-A78 + 4x 2.2GHz Cortex-A55
GPU Mali G78 MP14
Weight 8.01 oz (227.0 g)
5G Bands SA, NSA, Sub-6
FCC approval Date approved: Dec 22, 2020
FCC ID value: A3LSMG998B
Measured SAR Head: 0.16 W/kg
Body: 0.72 W/kg
Simultaneous Transmission: 1.59 W/kg
Wireless Router: 1.34 W/kg
Phablet: 3.86 W/kg
for Sprint and Boost Mobile
4G (FDD) Bands 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 12(700 a), 25(1900+), 26(850+)
4G (TDD) Bands 41(2600+)
FCC approval Date approved: Feb 27, 2017
FCC ID value: ZNFLS993
Measured SAR Head: 0.26 W/kg
Body: 1.07 W/kg
Simultaneous Transmission: 1.59 W/kg
Wireless Router: 1.07 W/kg
for AT&T
OS Android (9.0 Pie)
4G (FDD) Bands 1(2100), 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 12(700 a), 20(800 DD), 29(700 d), 30(2300 WCS)
FCC approval Date approved: Apr 07, 2017
FCC ID value: ZNFH871
Measured SAR Head: 0.70 W/kg
Body: 0.42 W/kg
Simultaneous Transmission: 1.59 W/kg
Wireless Router: 0.42 W/kg
International version
4G (FDD) 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), 28(700 APT)
4G (TDD) Bands 38(2600)
3G Bands 5(850), 8(900), 4(1700/2100), 3(1800), 2(1900), 1(2100)
Radio FM
FCC approval Date approved: Mar 24, 2017
FCC ID value: ZNFH870
Measured SAR Head: 0.69 W/kg
Body: 0.10 W/kg
Simultaneous Transmission: 1.41 W/kg
Wireless Router: 0.14 W/kg
FCC OKs Cingular\'s purchase of AT&T Wireless