Samsung Galaxy S8+ vs Samsung Galaxy A21 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.

9.0
Samsung Galaxy S8+
Samsung Galaxy S8+ Samsung Galaxy A21
Released · Apr 21, 2017
Released · Jun 29, 2020
6.2-inch · 2960x1440px
6.5-inch · 1600x720px
Single camera
Quad camera
4GB · 64GB
3GB · 32GB
3500 mAh
4000 mAh
Check prices

Design

Dimensions
6.28 x 2.89 x 0.32 inches
159.5 x 73.4 x 8.1 mm
6.61 x 3.02 x 0.32 inches
167.8 x 76.7 x 8.1 mm
Weight
6.10 oz (173.0 g) 6.81 oz (193.0 g)
Materials
Back: Glass (Corning Gorilla Glass 5)
Frame: Aluminum
Back: Plastic
Frame: Plastic
Resistance
Water, Dust; IP68
Biometrics
Iris scanner, 2D Face unlock, Fingerprint (touch) Fingerprint (touch)
Keys
Left: Volume control, Other; Right: Lock/Unlock key Right: Volume control, Lock/Unlock key
Colors
Midnight black, Orchid gray, Arctic silver, Coral blue, Maple gold, Rose pink Black

Display

Size
6.2-inch 6.5-inch
Resolution
2960x1440px, 18.5:9 ratio, 529 PPI 1600x720px, 20:9 ratio, 270 PPI
Technology
Super AMOLED IPS LCD
Refresh rate
60Hz
Screen-to-body
83.32 % 79.20 %
Features
HDR support, Scratch-resistant glass (Corning Gorilla Glass 5), Ambient light sensor, Proximity sensor Ambient light sensor, Proximity sensor

Hardware

System chip
Qualcomm Snapdragon 835 MSM8998 (10 nm) Mediatek Helio P35 MT6765 (12 nm)
Processor
Octa-core
2450 MHz
Kryo 280
Octa-core
4x 2.3GHz Cortex-A53 + 4x 1.8GHz Cortex-A53
GPU
Adreno 540 PowerVR GE8320
RAM
4GB (LPDDR4) 3GB (LPDDR4)
Internal storage
64GB 32GB (eMMC 5.1), available to use: 19.8 GB
Storage expansion
microSDXC up to 256 GB microSDXC up to 512 GB
OS
Android (9.0 Pie, 8.0 Oreo, 7.0 Nougat), Samsung One UI Android (10), Samsung One UI

Battery

Capacity
3500 mAh 4000 mAh
Type
Li - Ion Li - Polymer
Charging
Qualcomm Quick Charge 2.0, Qi and Powermat wireless charging Fast charging
Charge speed
Wired: 15.0W

Camera

Rear
Single camera Quad camera
Main camera
12 MP (OIS, PDAF)
Aperture size: F1.7
Focal length: 26 mm
Sensor size: 1/2.55"
Pixel size: 1.4 μm
16 MP (PDAF)
Aperture size: F1.8
Sensor size: 1/3.06"
Pixel size: 1 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
3840x2160 (4K UHD) (30 fps), 2560x1440 (QHD), 1920x1080 (Full HD) (60 fps), 1280x720 (HD) (240 fps)
HDR, Time-lapse video, Hyperlapse, Continuous autofocus, Object tracking, Picture-taking during video recording, Video light, EIS, Video calling, Video sharing
1920x1080 (Full HD) (30 fps)
Front
8 MP (Wide Angle, Autofocus, HDR), Video capture: 2560x1440 (QHD) (30 fps) 13 MP, Video capture: 1920x1080 (Full HD)

Connectivity & Features

Bluetooth
5.0, Yes 5.0
WLAN
802.11 a,b,g,n,ac,dual-band
MIMO, Wi-Fi Direct, Hotspot
802.11 a,b,g,n,ac,dual-band
Wi-Fi Direct, Hotspot
USB
Type-C, USB 3.1 Type-C, USB 2.0
Hearing aid compatible
M3/T3 M4/T3
Location
GPS, A-GPS, Glonass, Galileo, Cell ID, Wi-Fi positioning GPS, A-GPS, Glonass, BeiDou, Cell ID, Wi-Fi positioning
Sensors
Accelerometer, Gyroscope, Compass, Hall (for flip covers), Barometer Accelerometer, Gyroscope, Compass
Other
NFC, ANT+, UMA (Wi-Fi Calling), 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
DLNA,Wireless screen share,MHL 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), 25(1900+), 26(850+), 28(700 APT), 29(700 d), 30(2300 WCS), 66(AWS-3) 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), 20(800 DD), 25(1900+), 26(850+), 28(700 APT), 66(AWS-3), 71(600)
4G (TDD)
Bands 38(2600), 39(1900+), 40(2300), 41(2600+)
3G
Bands 5(850), 8(900), 4(1700/2100), 2(1900), 1(2100) Bands 1(2100), 2(1900), 4(1700/2100), 5(850), 8(900)
Data Speed
LTE-A Pro Cat 16 (1000/150 Mbit/s), 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
SIM type
Nano SIM Nano SIM
HD Voice
Yes Yes

Regulatory Approval

FCC approval
Date approved: Apr 06, 2017
FCC ID value: A3LSMG955U
Date approved: Apr 17, 2020
FCC ID value: ZCASMA215U
Measured SAR
Head: 0.33 W/kg
Body: 0.29 W/kg
Simultaneous Transmission: 1.55 W/kg
Wireless Router: 0.19 W/kg
Head: 0.42 W/kg
Body: 1.27 W/kg
Simultaneous Transmission: 1.27 W/kg
Wireless Router: 1.27 W/kg

Buyers information

MSRP
$ 250
In The Box
This is the official Samsu​ng Galaxy A21 User Guide in English provided from the manufacturer.

Availability

Officially announced
Mar 29, 2017 Apr 08, 2020

Alternative variants

International version
System chip Samsung Exynos 9 Octa 8895 (10 nm)
Processor Octa-core
2500 MHz
Exynos M2 "Mongoose"and ARM Cortex-A53
GPU Mali-G71 MP20
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), 25(1900+), 26(850+), 28(700 APT), 32(1500 L-band), 66(AWS-3)
4G (TDD) Bands 38(2600), 39(1900+), 40(2300), 41(2600+)
FCC approval Date approved: Sep 25, 2017
FCC ID value: A3LSMG955F
Measured SAR Head: 0.58 W/kg
Body: 0.65 W/kg
Simultaneous Transmission: 1.59 W/kg
Wireless Router: 0.49 W/kg
Phablet: 3.98 W/kg
for Verizon
4G (FDD) 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+)
3G Bands 5(850), 8(900), 2(1900), 1(2100)
for Verizon Wireless
4G (FDD) Bands 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 8(900), 13(700 c), 18(800 Lower), 19(800 Upper), 20(800 DD), 26(850+), 28(700 APT)
3G Bands 5(850), 8(900), 2(1900), 1(2100)
Hearing aid compatible M4/T3
for Sprint
4G (FDD) Bands 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 12(700 a), 13(700 c), 25(1900+), 26(850+), 66(AWS-3), 71(600)
4G (TDD) Bands 41(2600+)
for T-Mobile
4G (FDD) Bands 1(2100), 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 8(900), 12(700 a), 13(700 c), 18(800 Lower), 19(800 Upper), 20(800 DD), 25(1900+), 26(850+), 66(AWS-3)
3G Bands 5(850), 4(1700/2100), 2(1900), 1(2100)
with Dual SIM
System chip Samsung Exynos 9 Octa 8895 (10 nm)
Processor Octa-core
2500 MHz
Exynos M2 "Mongoose"and ARM Cortex-A53
GPU Mali-G71 MP20
Dual SIM Yes
for AT&T
4G (FDD) Bands 1(2100), 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 8(900), 12(700 a), 18(800 Lower), 19(800 Upper), 20(800 DD), 28(700 APT), 29(700 d), 30(2300 WCS)
for Sprint
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), 20(800 DD), 25(1900+), 26(850+), 28(700 APT)
for US Cellular
4G (FDD) Bands 2(1900), 4(AWS-1), 5(850), 8(900), 12(700 a), 13(700 c), 18(800 Lower), 19(800 Upper), 25(1900+)
3G Bands 5(850), 8(900), 2(1900), 1(2100)
FCC OKs Cingular\'s purchase of AT&T Wireless