Samsung Galaxy A3 (2017) vs Samsung Galaxy A21s Specs Comparison

Design

Dimensions
5.33 x 2.61 x 0.31 inches 135.4 x 66.2 x 7.9 mm	6.44 x 2.96 x 0.35 inches 163.7 x 75.3 x 8.9 mm
Weight
4.87 oz (138.0 g)	6.77 oz (192.0 g)
Materials
Back: Glass Frame: Aluminum
Resistance
Water, Dust; IP68
Biometrics
Fingerprint (touch)	2D Face unlock, Fingerprint (touch)
Features
Touch sensitive control keys
Keys
Left: Volume control; Right: Lock/Unlock key	Right: Volume control, Lock/Unlock key
Colors
Black sky, Gold sand, Peach cloud, Blue mist	Black, White, Blue, Red

Display

Size
4.7-inch	6.5-inch
Resolution
1280x720px, 312 PPI	1600x720px, 20:9 ratio, 270 PPI
Technology
Super AMOLED	TFT
Screen-to-body
67.85 %	82.94 %
Features
Ambient light sensor, Proximity sensor	Proximity sensor

Hardware

System chip
Samsung Exynos 7 Octa 7870 (14 nm)	Samsung Exynos 850
Processor
Octa-core 1600 MHz ARM Cortex-A53	Octa-core 8x 2.0GHz Cortex-A55
GPU
Mali-T830 MP2	Mali-G76
RAM
2GB (LPDDR3)	3GB (LPDDR4)
Internal storage
16GB, available to use: 9.7 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 (7.0 Nougat, 6.0 Marshmallow)	Android (10), Samsung One UI

Battery

Capacity
2350 mAh	5000 mAh
Type
	Li - Polymer
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

Learn more on our PhoneArena Battery Test Results page

Camera

Rear
Single camera	Quad camera
Main camera
13 MP (Autofocus, CMOS image sensor) Aperture size: F1.9	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) Video calling, Video sharing	1920x1080 (Full HD) (30 fps)
Front
8 MP	13 MP, Video capture: 1920x1080 (Full HD)

Connectivity & Features

Bluetooth
4.2	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	Type-C, USB 2.0
Location
GPS, A-GPS, Glonass	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

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

Cellular

4G (FDD)
Bands 1(2100), 2(1900), 3(1800), 5(850), 7(2600), 8(900), 20(800 DD)	Bands 1(2100), 2(1900), 3(1800), 5(850), 7(2600), 8(900), 20(800 DD), 28(700 APT)
4G (TDD)
Bands 40(2300)	Bands 38(2600), 40(2300), 41(2600+)
3G
Bands 5(850), 8(900), 2(1900), 1(2100)	Bands 1(2100), 2(1900), 5(850), 8(900)
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
SIM type
Nano SIM	Nano SIM

Regulatory Approval

FCC approval
Date approved: Dec 21, 2016 FCC ID value: A3LSMA320F
Measured SAR
Head: 0.45 W/kg Body: 0.74 W/kg Simultaneous Transmission: 1.56 W/kg Wireless Router: 0.94 W/kg

Buyers information

MSRP
	€ 240

Availability

Officially announced
Jan 02, 2017	May 15, 2020

Alternative variants

Dual SIM	Yes

with 4GB RAM

RAM	4GB
Internal storage	64GB

with 6GB RAM

RAM	6GB
Internal storage	64GB

Links

Full specifications
Samsung Galaxy A3 (2017) Specs	Samsung Galaxy A21s Specs
PhoneArena Review
Samsung Galaxy A3 (2017) Review	Samsung Galaxy A21s Review