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 A21
Released · Apr 21, 2017	Released · Jun 29, 2020
5.8-inch · 2960x1440px	6.5-inch · 1600x720px
Single camera	Quad camera
4GB · 64GB	3GB · 32GB
3000 mAh	4000 mAh

Availability

Officially announced
Mar 29, 2017	Apr 08, 2020
Prices (MSRP)
	$250

Design

Dimensions
5.86 x 2.68 x 0.31 inches 148.9 x 68.1 x 8.0 mm	6.61 x 3.02 x 0.32 inches 167.8 x 76.7 x 8.1 mm
Weight
5.47 oz (155.0 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, Burgundy red	Black

Display

Size
5.8-inch, 84.26% screen-to-body	6.5-inch, 79.20% screen-to-body
Type
Super AMOLED, HDR	IPS LCD, 60Hz
Resolution
2960x1440px, 18.5:9 ratio, 570 PPI	1600x720px, 20:9 ratio, 270 PPI
Protection
Corning Gorilla Glass 5

Hardware

System chip
Snapdragon 835 MSM8998 (10 nm)	Mediatek Helio P35 MT6765 (12 nm)
Processor
Octa-core 2350 MHz Kryo 280	Octa-core 4x2.3GHz Cortex-A53 4x1.8GHz Cortex-A53
GPU
Adreno 540	PowerVR GE8320
Memory
4GB (LPDDR4)/64GB	3GB (LPDDR4)/32GB (eMMC 5.1)
Storage expansion
microSDXC up to 256 GB	microSDXC up to 512 GB
OS
Android (9.0 Pie, 8.0 Oreo, 7.0 Nougat)	Android (10)

Battery

Type
3000 mAh, Li - Ion	4000 mAh, 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
4K UHD (30 fps), QHD, 1080p (60 fps), 720p (240 fps) HDR, Time-lapse video, Hyperlapse, Continuous autofocus, Object tracking, Picture-taking during video recording, Video light, EIS, Video calling, Video sharing	1080p (30 fps)
Front
8 MP (Wide Angle, Autofocus, HDR) Video capture: QHD	13 MP Video capture: 1080p

Connectivity & Features

Bluetooth
5.0, Yes	5.0
WLAN
a,b,g,n,ac,dual-band MIMO, Wi-Fi Direct, Hotspot 802.11 a, b, g, n, ac	a,b,g,n,ac,dual-band Wi-Fi Direct, Hotspot 802.11 a, b, g, n, ac
USB
Type-C, USB 3.1	Type-C, USB 2.0
Sensors
Accelerometer, Gyroscope, Compass, Hall (for flip covers), Barometer, Ambient light sensor, Proximity sensor	Accelerometer, Gyroscope, Compass, Ambient light sensor, Proximity sensor
Hearing aid compatible
M3/T3	M4/T3
Location
GPS, A-GPS, Glonass, Galileo, BeiDou, Cell ID, Wi-Fi positioning	GPS, A-GPS, Glonass, BeiDou, Cell ID, Wi-Fi positioning
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
32-Bit DAC, aptX-HD
Screen mirroring
DLNA,Wireless screen share,MHL	Wireless screen share
Radio
	FM
Additional microphone(s)
Noise cancellation, Video recording

Cellular

4G (FDD) Bands
1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 29, 30, 66	1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 20, 25, 26, 28, 66, 71
4G (TDD) Bands
38, 39, 40, 41	38, 39, 40, 41
3G Bands
1, 2, 5, 8	1, 2, 4, 5, 8
Data Speed
LTE-A Pro Cat 16 (1000/150 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s, UMTS	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: A3LSMG950U	Date approved: Apr 17, 2020 FCC ID value: ZCASMA215U
Measured SAR
Head: 0.49 W/kg Body: 0.48 W/kg Simultaneous Transmission: 1.53 W/kg Wireless Router: 0.46 W/kg	Head: 0.42 W/kg Body: 1.27 W/kg Simultaneous Transmission: 1.27 W/kg Wireless Router: 1.27 W/kg

Alternative variants

International version


System chip	Samsung Exynos 9 Octa 8895 (10 nm)
Processor	Octa-core 2300 MHz Exynos M2 "Mongoose" and ARM Cortex-A53
GPU	Mali-G71 MP20
4G (FDD) Bands	1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 32, 66
4G (TDD) Bands	38, 39, 40, 41
FCC approval	Date approved: Sep 05, 2017 FCC ID value: A3LSMG950F
Measured SAR	Head: 0.38 W/kg Body: 0.75 W/kg Simultaneous Transmission: 1.55 W/kg Wireless Router: 1.09 W/kg

for Verizon


4G (FDD) Bands	1, 2, 3, 5, 7, 8, 20, 28
4G (TDD) Bands	38, 40, 41
3G Bands	5, 8, 2, 1

for T-Mobile


4G (FDD) Bands	2, 4, 5, 12
3G Bands	5, 4, 2, 1
VoLTE	Yes

for Sprint


4G (FDD) Bands	2, 3, 4, 5, 7, 12, 13, 25, 26, 66, 71
4G (TDD) Bands	41

for Verizon Wireless


4G (FDD) Bands	2, 3, 4, 5, 7, 8, 13, 18, 19, 20, 26, 28
4G (TDD) Bands	38, 39, 40, 41
3G Bands	5, 8, 2, 1

for U.S. Cellular


4G (FDD) Bands	2, 4, 5, 8, 12, 13, 17, 18, 19, 25
4G (TDD) Bands	38, 39, 40
Data Speed	LTE-A, HSPA, UMTS

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

Links

Full specifications
Samsung Galaxy S8 Specs	Samsung Galaxy A21 Specs
PhoneArena Review
Samsung Galaxy S8 Review
User Reviews
Samsung Galaxy S8 User Reviews	Samsung Galaxy A21 User Reviews