Samsung Galaxy A8 (2018) vs Samsung Galaxy A21s 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.

6.5
Samsung Galaxy A8 (2018)
7.5
Samsung Galaxy A21s
Samsung Galaxy A8 (2018) Samsung Galaxy A21s
Released · Jan 06, 2018
Released · Jun 19, 2020
5.6-inch · 2220x1080px
6.5-inch · 1600x720px
Single camera
Quad camera
4GB · 64GB
3GB · 32GB
3000 mAh
5000 mAh

Design

Dimensions
5.87 x 2.78 x 0.33 inches
149.2 x 70.6 x 8.4 mm
6.44 x 2.96 x 0.35 inches
163.7 x 75.3 x 8.9 mm
Weight
6.07 oz (172.0 g) 6.77 oz (192.0 g)
Materials
Back: Glass (Corning Gorilla Glass 5)
Frame: Aluminum
Resistance
Water, Dust; IP68
Biometrics
Fingerprint (touch) 2D Face unlock, Fingerprint (touch)
Features
Notification light
Keys
Left: Volume control; Right: Lock/Unlock key Right: Volume control, Lock/Unlock key
Colors
Black, Gold, Orchid grey, Blue Black, White, Blue, Red

Display

Size
5.6-inch 6.5-inch
Resolution
2220x1080px, 18.5:9 ratio, 441 PPI 1600x720px, 20:9 ratio, 270 PPI
Technology
Super AMOLED TFT
Screen-to-body
75.60 % 82.94 %
Features
Scratch-resistant glass (Corning Gorilla Glass 4), Ambient light sensor, Proximity sensor Proximity sensor

Hardware

System chip
Samsung Exynos 5 Octa 7885 (14 nm) Samsung Exynos 850
Processor
Octa-core
2200 MHz
ARM Cortex-A73 and ARM Cortex-A53
Octa-core
8x 2.0GHz Cortex-A55
GPU
Mali-G71 Mali-G76
RAM
4GB (LPDDR4) 3GB (LPDDR4)
Internal storage
64GB 32GB (eMMC 5.1), available to use: 19.5 GB
Storage expansion
microSDXC up to 256 GB microSDXC up to 512 GB
OS
Android (9.0 Pie, 8.0 Oreo, 7.1 Nougat), Samsung One UI Android (10), Samsung One UI

Battery

Capacity
3000 mAh 5000 mAh
Type
Li - Polymer Li - Polymer
Charging
Fast charging Fast charging
PhoneArena Battery Tests
Battery Life Estimate
Untested
Browsing
Untested
Video
Untested
Gaming
Untested
Battery Life Estimate
Untested
Browsing
Untested
Video
11h 9min
Gaming
7h 48min

Camera

Rear
Single camera Quad camera
Main camera
16 MP (PDAF)
Aperture size: F1.7
48 MP (PDAF)
Aperture size: F2.0
Focal length: 26 mm
Sensor size: 1/2"
Pixel size: 0.8 μm
Second camera
8 MP (Ultra-wide)
Aperture size: F2.2
Sensor size: 1/4"
Pixel size: 1.12 μm
Third camera
2 MP (Macro)
Aperture size: F2.4
Fourth camera
2 MP (Depth information)
Aperture size: F2.4
Flash
LED LED
Video recording
1920x1080 (Full HD) (30 fps)
Hyperlapse, EIS, Video calling, Video sharing
1920x1080 (Full HD) (30 fps)
Front
16 MP (Dual-Camera), Video capture: 1920x1080 (Full HD) 13 MP, Video capture: 1920x1080 (Full HD)

Connectivity & Features

Bluetooth
5.0 5.0
WLAN
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, USB 2.0 Type-C, USB 2.0
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+, VoIP, Tethering, Computer sync, OTA sync NFC

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)
Noise cancellation

Cellular

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), 18(800 Lower), 19(800 Upper), 20(800 DD), 26(850+), 28(700 APT), 66(AWS-3) Bands 1(2100), 2(1900), 3(1800), 5(850), 7(2600), 8(900), 20(800 DD), 28(700 APT)
4G (TDD)
Bands 38(2600), 40(2300), 41(2600+) Bands 38(2600), 40(2300), 41(2600+)
3G
Bands 1(2100), 2(1900), 4(1700/2100), 5(850), 8(900) Bands 1(2100), 2(1900), 5(850), 8(900)
Data Speed
LTE-A Cat 11 (600/75 Mbit/s), HSPA, HSUPA LTE-A, HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s
Dual SIM
Yes Yes
SIM type
Nano SIM Nano SIM

Regulatory Approval

FCC approval
Date approved: Nov 14, 2017
FCC ID value: A3LSMA530F
Measured SAR
Head: 0.26 W/kg
Body: 0.76 W/kg
Simultaneous Transmission: 1.54 W/kg
Wireless Router: 0.98 W/kg

Buyers information

MSRP
€ 240

Availability

Officially announced
Dec 19, 2017 May 15, 2020

Alternative variants

with 32 GB storage
Internal storage 32GB, available to use: 22.7 GB
MSRP € 500
with 4GB RAM
RAM 4GB
Internal storage 64GB
with 6GB RAM
RAM 6GB
Internal storage 64GB
FCC OKs Cingular\'s purchase of AT&T Wireless