Samsung Galaxy A21 vs LG K51

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Display

Size

6.5 inches
6.5 inches

Resolution

1600 x 720 pixels, 20:9 ratio,
270 PPI
1560 x 720 pixels, 19.5:9 ratio,
264 PPI

Technology

Super AMOLED
IPS LCD

Screen-to-body

 
79.70 %

Features

Ambient light sensor, Proximity sensor
Ambient light sensor, Proximity sensor

Hardware & Performance

System chip

Mediatek Helio P35
MediaTek Helio P22 MT6762

Processor

Octa-core, 2300 MHz, Arm Cortex-A53, 64-bit, 12 nm
Octa-core, 2000 MHz, Arm Cortex-A53, 64-bit, 12 nm

GPU

PowerVR GE8320
IMG PowerVR GE8320

RAM

4GB LPDDR4
3GB

Internal storage

64GB
32GB

Storage expansion

microSDXC
microSDXC up to 2000 GB

OS

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

Battery

Capacity

4000 mAh
4000 mAh

Type

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

Charging

Fast charging
 

Camera

Rear

Quad camera
Triple camera

Main camera

16 MP (Autofocus)
13 MP (PDAF)

Specifications

Aperture size: F1.9; Focal length: 28 mm
Aperture size: F1.8

Second camera

5 MP (Ultra-wide)
5 MP (Ultra-wide)

Specifications

Aperture size: F2.2; Focal Length: 12 mm
Aperture size: F2.2

Third camera

2 MP (Macro)
2 MP (Depth information)

Fourth camera

2 MP (Depth information)
 

Video recording

1920x1080 (Full HD) (30 fps)
1920x1080 (Full HD)

Front

8 MP
13 MP

Design

Dimensions

 
6.57 x 3.07 x 0.33 inches (166.96 x 77.92 x 8.47 mm)

Weight

 
7.20 oz (204 g)
the average is 6.4 oz (184 g)

Materials

Back: Plastic; Frame: Plastic
 

Biometrics

Fingerprint (touch)
Fingerprint (touch)

Colors

 
Black

Cellular

Carrier locked phone

 
Yes

LTE (FDD)

 
Bands 2(1900), 4(AWS-1), 5(850), 12(700 a), 14(700 PS), 25(1900+), 26(850+), 66(AWS-3), 71(600)

LTE (TDD)

 
Bands 41(2600+)

UMTS

850, 900, 1700/2100, 1900, 2100 MHz
850, 900, 1700/2100, 1900, 2100 MHz

Data Speed

LTE, HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s
LTE-A Cat 6 (300/50 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s

Dual SIM

Yes
 

SIM type

Nano SIM
Nano SIM

VoLTE

 
Yes

Multimedia

Headphones

3.5mm jack
3.5mm jack

Features

 
DTS:X Virtual Surround

Connectivity & Features

Bluetooth

5.0
5.0

Wi-Fi

802.11 b, g, n; 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

Sensors

Accelerometer
Accelerometer

Shopping information

In The Box

 
Charger, SIM Card Installed, USB 2.0 Cable, Important Information Booklet

MSRP

$ 250
$ 150
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