Samsung Galaxy A3 (2017) vs Samsung Galaxy S21 vs Samsung Galaxy S8

Compare phone and tablet specifications of up to three devices at once.

Display

Size:

4.7 inches
6.2 inches
5.8 inches

Resolution:

1280 x 720 pixels, 312 PPI
2400 x 1080 pixels, 20:9 ratio, 424 PPI
2960 x 1440 pixels, 18.5:9 ratio, 570 PPI

Technology:

Super AMOLED
Dynamic AMOLED
Super AMOLED

Screen-to-body:

67.85 %
86.06 %
84.26 %

Peak brightness:

1300 cd/m2 (nit)

Features:

Ambient light sensor, Proximity sensor
120Hz refresh rate (adaptive), HDR support, Scratch-resistant glass (Corning Gorilla Glass Victus), Ambient light sensor, Proximity sensor
HDR support, Scratch-resistant glass (Corning Gorilla Glass 5), Ambient light sensor, Proximity sensor

Hardware

System chip:

Samsung Exynos 7 Octa 7870
Qualcomm Snapdragon 888
Qualcomm Snapdragon 835 MSM8998

Processor:

Octa-core, 1600 MHz, ARM Cortex-A53, 64-bit, 14 nm
Octa-core, 2840 MHz, Kryo 680, 64-bit, 5 nm
Octa-core, 2350 MHz, Kryo 280, 64-bit, 10 nm

GPU:

Mali-T830 MP2
Adreno 660
Adreno 540

RAM:

2GB LPDDR3
8GB LPDDR5
4GB LPDDR4

Internal storage:

16GB, available to use: 9.7 GB
128GB (UFS 3.0), not expandable
64GB

Storage expansion:

microSDXC up to 256 GB
microSDXC up to 256 GB

Device type:

Smartphone
Smartphone
Smartphone

OS:

Android (7.0 Nougat, 6.0 Marshmallow)
Android (11), Samsung One UI
Android (9.0 Pie, 8.0 Oreo, 7.0 Nougat), Samsung One UI

Battery

Capacity:

2350 mAh
4000 mAh
3000 mAh

Type:

Not user replaceable
Li - Polymer, Not user replaceable
Li - Ion, Not user replaceable

Charging:

Qualcomm Quick Charge 2.0, USB Power Delivery, Samsung Adaptive Fast Charging, Qi and Powermat wireless charging, Reverse wireless charging
Qualcomm Quick Charge 2.0, Qi and Powermat wireless charging

Max charge speed:

Wired: 25.0W; Wireless: 15.0W

Camera

Rear:

Single camera
Triple camera
Single camera

Main camera:

13 MP (Autofocus, CMOS image sensor)
12 MP (OIS, PDAF)
12 MP (OIS, PDAF)

Specifications:

Aperture size: F1.9
Aperture size: F1.8; Focal length: 26 mm; Sensor size: 1/1.76"; Pixel size: 1.8 μm
Aperture size: F1.7; Focal length: 26 mm; Sensor size: 1/2.55"; Pixel size: 1.4 μm

Second camera:

64 MP (Telephoto, OIS, PDAF)

Specifications:

Aperture size: F2.0; Focal Length: 29 mm; Sensor size: 1/1.7"; Pixel size: 0.8 μm

Third camera:

12 MP (Ultra-wide, Autofocus)

Specifications:

Aperture size: F2.2; Focal Length: 13 mm; Sensor size: 1/2.55"; Pixel size: 1.4 μm

Video recording:

1920x1080 (Full HD) (30 fps)
7680x4320 (8K UHD) (24 fps), 3840x2160 (4K UHD) (60 fps), 1920x1080 (Full HD) (240 fps), 1280x720 (HD) (960 fps)
3840x2160 (4K UHD) (30 fps), 2560x1440 (QHD), 1920x1080 (Full HD) (60 fps), 1280x720 (HD) (240 fps)

Features:

Video calling, Video sharing
OIS, HDR, Hyperlapse, Continuous autofocus, Video light, EIS
HDR, Time-lapse video, Hyperlapse, Continuous autofocus, Object tracking, Picture-taking during video recording, Video light, EIS, Video calling, Video sharing

Front:

8 MP
10 MP (PDAF, HDR)
8 MP (Wide Angle, Autofocus, HDR)

Video capture:

3840x2160 (4K UHD) (60 fps)
2560x1440 (QHD)

Design

Dimensions:

5.33 x 2.61 x 0.31 inches (135.4 x 66.2 x 7.9 mm)
5.97 x 2.80 x 0.31 inches (151.7 x 71.2 x 7.9 mm)
5.86 x 2.68 x 0.31 inches (148.9 x 68.1 x 8.0 mm)

Weight:

4.87 oz (138.0 g)
6.03 oz (171.0 g)
5.47 oz (155.0 g)

Materials:

Back: Glass; Frame: Aluminum
Back: Plastic; Frame: Aluminum
Back: Glass (Corning Gorilla Glass 5); Frame: Aluminum

Resistance:

Water, Dust; IP68
Water, Dust; IP68
Water, Dust; IP68

Biometrics:

Fingerprint (touch)
2D Face unlock, Ultrasonic in-screen fingerprint
Iris scanner, 2D Face unlock, Fingerprint (touch)

Features:

Touch sensitive control keys

Keys:

Left: Volume control; Right: Lock/Unlock key
Right: Volume control, Lock/Unlock key
Left: Volume control, Other; Right: Lock/Unlock key

Colors:

Black sky, Gold sand, Peach cloud, Blue mist
Phantom pink, Violet, Gray, White
Midnight black, Orchid gray, Arctic silver, Coral blue, Maple gold, Rose pink, Burgundy red

Cellular

5G:

n2, n5, n12, n25, n41, n66, n71, n77, n260, n261, SA, NSA, Sub-6, mmWave

LTE (FDD):

Bands 1(2100), 2(1900), 3(1800), 5(850), 7(2600), 8(900), 20(800 DD)
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), 18(800 Lower), 19(800 Upper), 20(800 DD), 25(1900+), 26(850+), 28(700 APT), 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), 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)

LTE (TDD):

Bands 40(2300)
Bands 38(2600), 39(1900+), 40(2300), 41(2600+), 46, 48(3600)
Bands 38(2600), 39(1900+), 40(2300), 41(2600+)

UMTS:

Bands 5(850), 8(900), 2(1900), 1(2100)
Bands 1(2100), 2(1900), 4(1700/2100), 5(850), 8(900)
Bands 5(850), 8(900), 2(1900), 1(2100)

Data Speed:

LTE-A Cat 6 (300/50 Mbit/s), HSPA
LTE-A, HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s, UMTS
LTE-A Pro Cat 16 (1000/150 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s, UMTS

SIM type:

Nano SIM
Nano SIM
Nano SIM

HD Voice:

Yes

Multimedia

Headphones:

3.5mm jack
No 3.5mm jack
3.5mm jack

Speakers:

Earpiece, Loudspeaker
Earpiece, Multiple speakers
Earpiece, Loudspeaker

Features:

Album art cover, Background playback
32-Bit DAC, Dolby Atmos, aptX, Dolby Digital, Dolby Digital Plus
32-Bit DAC, aptX-HD

Screen mirroring:

Wireless screen share
Wireless screen share
DLNA, Wireless screen share, MHL

Radio:

FM
FM, Stereo, RDS

Additional microphone(s):

for Noise cancellation, Video recording
for Noise cancellation, Video recording

Connectivity & Features

Bluetooth:

4.2
5.0
5.0, EDR

Wi-Fi:

802.11 a, b, g, n, ac, dual-band; Wi-Fi Direct, Hotspot
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; MIMO, Wi-Fi Direct, Hotspot

USB:

Type-C (reversible)
Type-C (reversible), USB 3.2
Type-C (reversible), USB 3.1

Features:

Charging, Mass storage device
Charging, Headphones port, OTG, Video out
Charging, Video out, Mass storage device

Location:

GPS, A-GPS, Glonass
GPS, A-GPS, Glonass, Galileo, BeiDou, Cell ID, Wi-Fi positioning
GPS, A-GPS, Glonass, Galileo, BeiDou, Cell ID, Wi-Fi positioning

Sensors:

Accelerometer, Gyroscope, Compass, Hall (for flip covers), Barometer
Accelerometer, Gyroscope, Compass, Hall (for flip covers), Barometer
Accelerometer, Gyroscope, Compass, Hall (for flip covers), Barometer

Other:

NFC, ANT+, UMA (Wi-Fi Calling), Tethering, Computer sync, OTA sync
NFC, ANT+
NFC, ANT+, UMA (Wi-Fi Calling), Tethering, Computer sync, OTA sync

Hearing aid compatible:

M3, T3
M3, T3

Regulatory Approval

FCC approval:

Date approved:

Dec 21, 2016
Dec 08, 2020
Apr 06, 2017

FCC ID value:

A3LSMA320F link
A3LSMG991U link
A3LSMG950U link

Measured SAR:

Head:

0.45 W/kg
0.36 W/kg
0.49 W/kg

Body:

0.74 W/kg
1.08 W/kg
0.48 W/kg

Simultaneous Transmission:

1.56 W/kg
3.96 W/kg
1.53 W/kg

Wireless Router:

0.94 W/kg
1.09 W/kg
0.46 W/kg

Phablet:

2.49 W/kg

Buyers information

Price:

$ 800

In The Box:

C to C Data Cable, Ejection Pin

Availability

Officially announced:

Jan 02, 2017
Jan 14, 2021
Mar 29, 2017
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