LG K51S vs Samsung Galaxy S21 Ultra vs Samsung Galaxy S10 - specs comparison

Display

Size:

6.5 inches

6.8 inches

6.1 inches

Resolution:

1600 x 720 pixels, 20:9 ratio, 270 PPI

3200 x 1440 pixels, 20:9 ratio, 516 PPI

3040 x 1440 pixels, 19:9 ratio, 550 PPI

Technology:

IPS LCD

Dynamic AMOLED

Screen-to-body:

83.97 %

89.33 %

88.66 %

Peak brightness:

1500 cd/m2 (nit)

Features:

Ambient light sensor, Proximity sensor

120Hz refresh rate (adaptable), HDR support, Scratch-resistant glass (Corning Gorilla Glass Victus), Ambient light sensor, Proximity sensor

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

Hardware

System chip:

MediaTek Helio P35 MT6765

Qualcomm Snapdragon 888

Qualcomm Snapdragon 855

Processor:

Octa-core, 2300 MHz, Arm Cortex-A53, 64-bit, 12 nm

Octa-core, 2840 MHz, Kryo 680, 64-bit, 5 nm

Octa-core, 2840 MHz, Kryo 485, 64-bit, 7 nm

GPU:

PowerVR GE8320

Adreno 660

Adreno 640

RAM:

3GB

12GB LPDDR5

8GB LPDDR4

Internal storage:

64GB (eMMC 5.1)

128GB (UFS 3.1), not expandable

128GB

Storage expansion:

microSDXC up to 2048 GB

microSDXC up to 512 GB

Device type:

Smartphone

OS:

Android (10)

Android (11), Samsung One UI

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

Battery

Capacity:

4000 mAh

5000 mAh

3400 mAh

Type:

Not user replaceable

Li - Polymer, Not user replaceable

Li - Ion, Not user replaceable

Battery life test results:

link

Charging:

Qualcomm Quick Charge 2.0, USB Power Delivery, Samsung Adaptive Fast Charging, Qi and Powermat wireless charging, Reverse wireless charging

Max charge speed:

Wired: 25.0W; Wireless: 15.0W

Camera

Rear:

Quad camera

Triple camera

Main camera:

32 MP (PDAF)

108 MP (OIS, Laser and PDAF)

12 MP (OIS, PDAF)

Specifications:

F1.8; 26 mm; 1/1.33"; 0.8 μm

F1.5/F2.4; 26 mm; 1/2.55"; 1.4 μm

Second camera:

5 MP (Ultra-wide)

10 MP (Telephoto, OIS, PDAF)

12 MP (Telephoto, OIS, PDAF)

Specifications:

Optical zoom: 3.0x; Aperture size: F2.4; Focal Length: 70 mm; Sensor size: 1/3.2"; Pixel size: 1.22 μm

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

Third camera:

2 MP (Macro)

12 MP (Ultra-wide, PDAF)

16 MP (Ultra-wide)

Specifications:

Aperture size: F2.2; Focal Length: 13 mm; Sensor size: 1/2.55"; Pixel size: 1.4 μm

Aperture size: F2.2; Focal Length: 12 mm; Sensor size: 1/3.1"; Pixel size: 1 μm

Fourth camera:

2 MP (Depth information)

10 MP (Periscope, OIS, PDAF)

Specifications:

Optical zoom: 10.0x; Aperture size: F4.9; Focal Length: 240 mm; Sensor size: 1/3.2"; Pixel size: 1.22 μm

Video recording:

1920x1080 (Full HD) (30 fps)

7680x4320 (8K UHD) (24 fps), 3840x2160 (4K UHD) (60 fps), 1920x1080 (Full HD) (240 fps), 1280x720 (HD) (960 fps)

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

Features:

OIS, HDR, Hyperlapse, Video light, EIS

HDR, Time-lapse video, Hyperlapse, Picture-taking during video recording, Video light, EIS, Video calling, Video sharing

Front:

13 MP

40 MP (PDAF, HDR)

10 MP (Autofocus, HDR)

Video capture:

3840x2160 (4K UHD) (60 fps)

3840x2160 (4K UHD)

Design

Dimensions:

6.50 x 3.02 x 0.33 inches (165.2 x 76.7 x 8.3 mm)

6.50 x 2.98 x 0.35 inches (165.1 x 75.6 x 8.9 mm)

5.90 x 2.77 x 0.31 inches (149.9 x 70.4 x 7.8 mm)

Weight:

6.77 oz (192.0 g)

8.04 oz (229.0 g)

5.54 oz (157.0 g)

Materials:

Back: Glass (Corning Gorilla Glass Victus); Frame: Aluminum

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

Resistance:

Yes; MIL-STD-810 certified

Water, Dust; IP68

Biometrics:

Fingerprint (touch)

2D Face unlock, Ultrasonic in-screen fingerprint

Keys:

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

Right: Volume control, Lock/Unlock key

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

Colors:

Titanium, Pink, Blue

Phantom black, Silver

Prism blue, Prism black, Prism white, Prism green, Flamingo pink

Cellular

5G:

n2, n5, n12, n25, n41, n66, n71, n77, n260, n261, SA, NSA, Sub-6, mmWave

LTE (FDD):

Bands 1(2100), 3(1800), 7(2600), 8(900), 20(800 DD), 28(700 APT)

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)

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)

LTE (TDD):

Bands 38(2600)

Bands 38(2600), 39(1900+), 40(2300), 41(2600+), 46, 48(3600)

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

UMTS:

Bands 1(2100), 2(1900), 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 Cat 6 (300/50 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s, UMTS

LTE-A, HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s, UMTS

LTE-A Pro Cat 20 (2000/150 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s

Dual SIM:

Yes

SIM type:

Nano SIM

HD Voice:

Yes

Multimedia

Headphones:

3.5mm jack

No 3.5mm jack

3.5mm jack

Speakers:

Earpiece, Loudspeaker

Earpiece, Multiple speakers

Features:

DTS:X Virtual Surround

32-Bit DAC, Dolby Atmos, aptX, Dolby Digital, Dolby Digital Plus

32-Bit DAC, Dolby Atmos, aptX-HD

Screen mirroring:

Wireless screen share

Radio:

FM, Stereo, RDS

FM

Additional microphone(s):

for Noise cancellation, Video recording

for Noise cancellation

Connectivity & Features

Bluetooth:

5.0

5.1

5.0

Wi-Fi:

802.11 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

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

USB:

Type-C (reversible)

Type-C (reversible), USB 3.2

Type-C (reversible), USB 3.1

Features:

Charging

Charging, Headphones port, OTG, Video out

Charging, OTG, Video out

Location:

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

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

Sensors:

Accelerometer, Gyroscope, Compass

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

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

Other:

NFC

NFC, ANT+

Hearing aid compatible:

M3, T3

M4, T4

Regulatory Approval

FCC approval:

Date approved:

Dec 22, 2020

Feb 01, 2019

FCC ID value:

A3LSMG998U link

A3LSMG973U link

Measured SAR:

Head:

0.77 W/kg

0.39 W/kg

Body:

1.02 W/kg

1.37 W/kg

Simultaneous Transmission:

1.59 W/kg

Wireless Router:

1.16 W/kg

1.35 W/kg

Phablet:

3.15 W/kg

3.99 W/kg

Buyers information

Price:

$ 1200

$ 900

In The Box:

C to C Data Cable, Ejection Pin

Data cable, Travel adapter, Ejection Pin, USB Connector (OTG), Earphones by AKG, Quick Start Guide, Protective film

Availability

Officially announced:

Feb 18, 2020

Jan 14, 2021

Feb 20, 2019