Samsung Galaxy S10 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 S10	Samsung Galaxy A21
Released · Mar 08, 2019	Released · Jun 29, 2020
6.1-inch · 3040x1440px	6.5-inch · 1600x720px
Triple camera	Quad camera
8GB · 128GB	3GB · 32GB
3400 mAh	4000 mAh
Check prices	Check prices

Design

Dimensions
5.90 x 2.77 x 0.31 inches 149.9 x 70.4 x 7.8 mm	6.61 x 3.02 x 0.32 inches 167.8 x 76.7 x 8.1 mm
Weight
5.54 oz (157.0 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
2D Face unlock, Ultrasonic in-screen fingerprint	Fingerprint (touch)
Keys
Left: Volume control, Other; Right: Lock/Unlock key	Right: Volume control, Lock/Unlock key
Colors
Prism blue, Prism black, Prism white, Prism green, Flamingo pink	Black

Display

Size
6.1-inch	6.5-inch
Resolution
3040x1440px, 19:9 ratio, 550 PPI	1600x720px, 20:9 ratio, 270 PPI
Technology
Dynamic AMOLED	IPS LCD
Refresh rate
	60Hz
Screen-to-body
88.66 %	79.20 %
Features
HDR support, Scratch-resistant glass (Corning Gorilla Glass 6), Ambient light sensor, Proximity sensor	Ambient light sensor, Proximity sensor

Hardware

System chip
Qualcomm Snapdragon 855 (7 nm)	Mediatek Helio P35 MT6765 (12 nm)
Processor
Octa-core 2840 MHz Kryo 485	Octa-core 4x 2.3GHz Cortex-A53 + 4x 1.8GHz Cortex-A53
GPU
Adreno 640	PowerVR GE8320
RAM
8GB (LPDDR4)	3GB (LPDDR4)
Internal storage
128GB	32GB (eMMC 5.1), available to use: 19.8 GB
Storage expansion
microSDXC up to 512 GB	microSDXC up to 512 GB
OS
Android (11, 10, 9.0 Pie), Samsung One UI	Android (10), Samsung One UI

Battery

Capacity
3400 mAh	4000 mAh
Type
Li - Ion	Li - Polymer
Charging
Qualcomm Quick Charge 2.0, USB Power Delivery, Samsung Adaptive Fast Charging, Qi and Powermat wireless charging, Reverse wireless charging	Fast charging
Charge speed
	Wired: 15.0W

Battery Life Estimate

4h 15min

Browsing

8h 9min

Video

7h 18min

Gaming

5h 35min

Battery Life Estimate

Untested

Browsing

Untested

Video

Untested

Gaming

Untested

Camera

Rear
Triple camera	Quad camera
Main camera
12 MP (OIS, PDAF) Aperture size: F1.5/F2.4 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
16 MP (Ultra-wide) Aperture size: F2.2 Focal Length: 12 mm Sensor size: 1/3.1" Pixel size: 1 μm	8 MP (Ultra-wide) Aperture size: F2.2 Sensor size: 1/4" Pixel size: 1.12 μm
Third camera
12 MP (Telephoto, OIS, PDAF) Optical zoom: 2.0x Aperture size: F2.4 Focal Length: 52 mm Sensor size: 1/3.6" Pixel size: 1 μm	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) (60 fps), 1920x1080 (Full HD) (240 fps), 1280x720 (HD) (960 fps) HDR, Time-lapse video, Hyperlapse, Picture-taking during video recording, Video light, EIS, Video calling, Video sharing	1920x1080 (Full HD) (30 fps)
Front
10 MP (Autofocus, HDR), Video capture: 3840x2160 (4K UHD)	13 MP, Video capture: 1920x1080 (Full HD)

Connectivity & Features

Bluetooth
5.0	5.0
WLAN
802.11 a,b,g,n,ac,ax(Wi-Fi 6),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
M4/T4	M4/T3
Location
GPS, A-GPS, Glonass, Galileo, BeiDou, Cell ID, Wi-Fi positioning	GPS, A-GPS, Glonass, BeiDou, Cell ID, Wi-Fi positioning
Sensors
Accelerometer, Gyroscope, Compass, Hall (for flip covers), Heart rate, Barometer	Accelerometer, Gyroscope, Compass
Other
NFC, ANT+	NFC

Multimedia

Headphones
3.5mm jack	3.5mm jack
Speakers
Earpiece, Multiple speakers	Earpiece, Loudspeaker
Features
32-Bit DAC, Dolby Atmos, aptX-HD
Screen mirroring
Wireless screen share	Wireless screen share
Radio
FM	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), 14(700 PS), 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), 71(600)	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+), 46	Bands 38(2600), 39(1900+), 40(2300), 41(2600+)
3G
Bands 1(2100), 2(1900), 4(1700/2100), 5(850), 8(900)	Bands 1(2100), 2(1900), 4(1700/2100), 5(850), 8(900)
Data Speed
LTE-A Pro Cat 20 (2000/150 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: Feb 01, 2019 FCC ID value: A3LSMG973U	Date approved: Apr 17, 2020 FCC ID value: ZCASMA215U
Measured SAR
Head: 0.39 W/kg Body: 1.37 W/kg Simultaneous Transmission: 1.59 W/kg Wireless Router: 1.35 W/kg Phablet: 3.99 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
$ 900	$ 250
In The Box
Data cable, Travel adapter, Ejection Pin, USB Connector (OTG), Earphones by AKG, Quick Start Guide, Protective film	This is the official Samsung Galaxy A21 User Guide in English provided from the manufacturer.

Availability

Officially announced
Feb 20, 2019	Apr 08, 2020

Alternative variants

International version


System chip	Samsung Exynos 9 9820 (8 nm)
Processor	Octa-core 2700 MHz Exynos M4, ARM Cortex-A75 and ARM Cortex-A55
GPU	Mali-G76 MP12
Dual SIM	Yes
FCC approval	Date approved: Feb 15, 2019 FCC ID value: A3LSMG973F
Measured SAR	Head: 0.35 W/kg Body: 0.79 W/kg Simultaneous Transmission: 1.59 W/kg Wireless Router: 1.07 W/kg Phablet: 2.96 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)

with 512 GB storage


Internal storage	512GB
MSRP	$ 1150

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+)

Links

Full specifications
Samsung Galaxy S10 Specs	Samsung Galaxy A21 Specs
PhoneArena Review
Samsung Galaxy S10 Review
User Reviews
Samsung Galaxy S10 User Reviews	Samsung Galaxy A21 User Reviews