Samsung Galaxy A5 (2017) vs Samsung Galaxy A21s

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Display

Size

5.2 inches
6.5 inches

Resolution

1920 x 1080 pixels,
424 PPI
1600 x 720 pixels, 20:9 ratio,
270 PPI

Technology

Super AMOLED
TFT

Screen-to-body

71.51 %
82.94 %

Features

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

Hardware

System chip

Samsung Exynos 7 Octa 7880
Samsung Exynos 850

Processor

Octa-core, 1900 MHz, ARM Cortex-A53, 64-bit, 14 nm
Octa-core, 2000 MHz, Arm Cortex-A55, 64-bit

GPU

Mali-T830 MP3
Mali-G76

RAM

3GB LPDDR3
3GB LPDDR4

Internal storage

32GB, available to use: 23.1 GB
32GB (eMMC 5.1), available to use: 19.5 GB

Storage expansion

microSDXC up to 256 GB
microSDXC up to 512 GB

OS

Android (8.0 Oreo, 7.0 Nougat, 6.0 Marshmallow)
Android (10), Samsung One UI

Battery

Capacity

3000 mAh
5000 mAh

Type

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

Charging

Fast charging
Fast charging

Camera

Rear

Single camera
Quad camera

Main camera

16 MP (Autofocus, CMOS image sensor)
48 MP (PDAF)

Specifications

Aperture size: F1.9; Focal length: 27 mm
Aperture size: F2.0; Focal length: 26 mm; Sensor size: 1/2"; Pixel size: 0.8 μm

Second camera

 
8 MP (Ultra-wide)

Specifications

 
Aperture size: F2.2; Sensor size: 1/4"; Pixel size: 1.12 μm

Third camera

 
2 MP (Macro)

Specifications

 
Aperture size: F2.4

Fourth camera

 
2 MP (Depth information)

Specifications

 
Aperture size: F2.4

Video recording

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

Features

Video calling, Video sharing
 

Front

16 MP
13 MP

Design

Dimensions

5.75 x 2.81 x 0.31 inches (146.1 x 71.4 x 7.9 mm)
6.44 x 2.96 x 0.35 inches (163.7 x 75.3 x 8.9 mm)

Weight

5.61 oz (159.0 g)
the average is 6.2 oz (176 g)
6.77 oz (192.0 g)
the average is 6.2 oz (176 g)

Materials

Back: Glass; Frame: Metal
 

Resistance

Water, Dust; IP 68
 

Biometrics

Fingerprint (touch)
2D Face unlock, Fingerprint (touch)

Features

Touch sensitive control keys
 

Colors

Black sky, Gold sand, Blue mist, Peach cloud
Black, White, Blue, Red

Cellular

LTE (FDD)

Bands 1(2100), 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 8(900), 17(700 b), 20(800 DD), 28(700 APT)
Bands 1(2100), 2(1900), 3(1800), 5(850), 7(2600), 8(900), 20(800 DD), 28(700 APT)

LTE (TDD)

Bands 38(2600), 40(2300), 41(2600+)
Bands 38(2600), 40(2300), 41(2600+)

UMTS

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

Data Speed

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

Dual SIM

Yes
Yes

SIM type

Nano SIM
Nano SIM

Multimedia

Headphones

3.5mm jack
3.5mm jack

Speakers

Earpiece, Loudspeaker
Earpiece, Loudspeaker

Features

Album art cover, Background playback
 

Screen mirroring

Wireless screen share
Wireless screen share

Radio

FM
 

Additional microphone(s)

for Noise cancellation
 

Connectivity & Features

Bluetooth

4.2
5.0

Wi-Fi

802.11 a, b, g, n, ac, dual-band; Wi-Fi Direct
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, Mass storage device
Charging

Location

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

Sensors

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

Other

NFC, ANT+, UMA (Wi-Fi Calling), Tethering, Computer sync, OTA sync
NFC

Regulatory Approval

FCC approval

 
 

Date approved

Dec 06, 2016
 

FCC ID value: A3LSMA520F link
 

Measured SAR

 
 

Head

0.30 W/kg
 

Body

0.55 W/kg
 

Simultaneous Transmission

1.59 W/kg
 

Wireless Router

1.09 W/kg
 
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