LG K51 vs Samsung Galaxy A21s
Compare phone and tablet specifications of up to three devices. Type a model name in the search field of our phone specs comparison tool or pick a popular device from the ones below.
Display
Size
Resolution
Technology
IPS LCD
TFT
Screen-to-body
79.70 %
82.94 %
Features
Ambient light sensor, Proximity sensor
Proximity sensor
Hardware
System chip
MediaTek Helio P22 MT6762
Samsung Exynos 850
Processor
GPU
IMG PowerVR GE8320
Mali-G76
RAM
Internal storage
32GB, available to use: 18 GB
32GB (eMMC 5.1), available to use: 19.5 GB
Storage expansion
microSDXC up to 2000 GB
microSDXC up to 512 GB
Device type
Smartphone
Smartphone
OS
Android (10)
Android (10), Samsung One UI
Battery
Capacity
4000 mAh
5000 mAh
Type
Li - Ion, Not user replaceable
Li - Polymer, Not user replaceable
Charging
Fast charging
Camera
Rear
Triple camera
Quad camera
Main camera
Specifications
Aperture size: F1.8; Sensor size: 1/3"; Pixel size: 1.12 μm
Aperture size: F2.0; Focal length: 26 mm; Sensor size: 1/2"; Pixel size: 0.8 μm
Second camera
5 MP (Ultra-wide)
8 MP (Ultra-wide)
Specifications
Aperture size: F2.2; Sensor size: 1/5"; Pixel size: 1.12 μm
Aperture size: F2.2; Sensor size: 1/4"; Pixel size: 1.12 μm
Third camera
2 MP (Depth information)
2 MP (Macro)
Specifications
Sensor size: 1/5"; Pixel size: 1.75 μm
Aperture size: F2.4
Fourth camera
2 MP (Depth information)
Specifications
Aperture size: F2.4
Video recording
1920x1080 (Full HD)
1920x1080 (Full HD) (30 fps)
Features
Picture-taking during video recording
Front
13 MP
13 MP
Design
Dimensions
Weight
the average is 6.3 oz (179 g)
the average is 6.3 oz (179 g)
Resistance
Yes; MIL-STD-810 certified
Biometrics
Fingerprint (touch)
2D Face unlock, Fingerprint (touch)
Keys
Left: Volume control; Right: Lock/Unlock key
Right: Volume control, Lock/Unlock key
Colors
Titan gray
Black, White, Blue, Red
Cellular
LTE (FDD)
Bands 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 12(700 a), 13(700 c), 20(800 DD), 25(1900+), 26(850+), 66(AWS-3), 71(600)
Bands 1(2100), 2(1900), 3(1800), 5(850), 7(2600), 8(900), 20(800 DD), 28(700 APT)
LTE (TDD)
Bands 41(2600+)
Bands 38(2600), 40(2300), 41(2600+)
UMTS
850, 900, 1700/2100, 1900, 2100 MHz
850, 900, 1900, 2100 MHz
Data Speed
Dual SIM
Yes
SIM type
Nano SIM
Nano SIM
HD Voice
Yes
VoLTE
Yes
Multimedia
Headphones
3.5mm jack
3.5mm jack
Speakers
Earpiece, Multiple speakers
Earpiece, Loudspeaker
Features
DTS:X Virtual Surround
Screen mirroring
Wireless screen share
Wireless screen share
Radio
FM
Additional microphone(s)
for Noise cancellation
Connectivity & Features
Bluetooth
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
USB
Type-C (reversible), USB 2.0
Type-C (reversible), USB 2.0
Features
Charging
Charging
Location
GPS, A-GPS, Cell ID, Wi-Fi positioning
GPS, A-GPS, Glonass, Galileo, BeiDou, Cell ID, Wi-Fi positioning
Sensors
Accelerometer, Gyroscope, Compass
Accelerometer, Gyroscope
Other
NFC
Hearing aid compatible
M3, T3
Buyers information
Price
$ 200
€ 240
User Manual
Download the LG K51 Manual as a PDF file.
Download the Samsung Galaxy A21s Manual as a PDF file.
In The Box
Charger, USB Cable, SIM Ejector
Availability
Officially announced
May 06, 2020
May 15, 2020
