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Samsung Galaxy S7 vs Samsung Galaxy A02s vs Samsung Galaxy S9

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

Comparison mode:

Display

Size:

5.1 inches
6.5 inches
5.8 inches

Resolution:

2560 x 1440 pixels, 16:9 ratio, 576 PPI
1600 x 720 pixels, 20:9 ratio, 270 PPI
2960 x 1440 pixels, 18.5:9 ratio, 568 PPI

Technology:

Super AMOLED
IPS LCD
Super AMOLED

Refresh rate:

60Hz

Screen-to-body:

72.30 %
81.80 %
84.36 %

Peak brightness:

855 cd/m2 (nit)

Features:

Scratch-resistant glass (Corning Gorilla Glass 4), Ambient light sensor, Proximity sensor
Ambient light sensor, Proximity sensor
HDR support, Scratch-resistant glass (Corning Gorilla Glass 5), Ambient light sensor, Proximity sensor

Hardware

System chip:

Qualcomm Snapdragon 820 MSM8996
Qualcomm Snapdragon 450 SDM450
Qualcomm Snapdragon 845 SDM845

Processor:

Quad-core, 2200 MHz, Kryo, 64-bit, 14 nm
Octa-core, 1800 MHz, Cortex-A53, 64-bit, 14 nm
Octa-core, 2800 MHz, Kryo 385, 64-bit, 10 nm

GPU:

Adreno 530
Adreno 506
Adreno 630

RAM:

4GB LPDDR4
3GB
4GB LPDDR4

Internal storage:

32GB (UFS), available to use: 24.5 GB
32GB (eMMC 5.1), available to use: 20.5 GB
64GB

Storage expansion:

microSDXC up to 200 GB
microSDXC up to 1024 GB
microSDXC up to 400 GB

Device type:

Smartphone
Smartphone
Smartphone

OS:

Android (8.0 Oreo, 7.0 Nougat, 6.0 Marshmallow), Samsung TouchWiz UI
Android (11, 10)
Android (10, 9.0 Pie, 8.0 Oreo), Samsung One UI

Battery

Capacity:

3000 mAh
5000 mAh
3000 mAh

Type:

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

Charging:

Qualcomm Quick Charge 2.0, Qi and Powermat wireless charging
Samsung Adaptive Fast Charging
Qualcomm Quick Charge 2.0, Samsung Adaptive Fast Charging, Qi and Powermat wireless charging

Max charge speed:

Wired: 15.0W
Wired: 15.0W

Camera

Rear:

Single camera
Triple camera
Single camera

Main camera:

12 MP (OIS, PDAF)
13 MP (Autofocus)
12 MP (OIS, PDAF)

Specifications:

Aperture size: F1.7; Focal length: 26 mm; Sensor size: 1/2.5"; Pixel size: 1.4 μm
Aperture size: F2.2
Aperture size: F1.5/F2.4; Sensor size: 1/2.55"; Pixel size: 1.4 μm

Second camera:

2 MP (Macro)

Specifications:

Aperture size: F2.4

Third camera:

2 MP (Depth information)

Specifications:

Aperture size: F2.4

Video recording:

3840x2160 (4K UHD) (30 fps), 1920x1080 (Full HD) (60 fps), 1280x720 (HD) (240 fps)
1920x1080 (Full HD) (30 fps)
3840x2160 (4K UHD) (60 fps), 1920x1080 (Full HD) (240 fps), 1280x720 (HD) (960 fps)

Features:

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

Front:

5 MP (HDR)
5 MP
8 MP (Autofocus, HDR)

Video capture:

2560x1440 (QHD) (30 fps)

Design

Dimensions:

5.61 x 2.74 x 0.31 inches (142.4 x 69.6 x 7.9 mm)
6.46 x 2.99 x 0.36 inches (164.2 x 75.9 x 9.1 mm)
5.81 x 2.70 x 0.33 inches (147.7 x 68.7 x 8.5 mm)

Weight:

5.36 oz (152.0 g)
6.91 oz (196.0 g)
5.75 oz (163.0 g)

Materials:

Back: Glass (Corning Gorilla Glass 4); Frame: Aluminum
Back: Plastic; Frame: Plastic
Back: Glass (Corning Gorilla Glass 5); Frame: Aluminum

Resistance:

Water, Dust; IP68
Water, Dust; IP68

Biometrics:

Fingerprint (touch)
Iris scanner, 2D Face unlock, Fingerprint (touch)

Features:

Touch sensitive control keys
Notification light

Keys:

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

Colors:

Black, Gold, Silver, Pink, White, Pink gold
Black, White, Blue
Midnight black, Coral blue, Titanium gray, Lilac purple, Burgundy red, Sunrise gold, Ice blue

Cellular

LTE (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), 29(700 d), 30(2300 WCS)
Bands 1(2100), 3(1800), 5(850), 7(2600), 8(900), 20(800 DD), 28(700 APT)
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)

LTE (TDD):

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

UMTS:

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

Data Speed:

LTE-A Cat 9 (450/50 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s, UMTS
LTE Cat 4 (150/50 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s
LTE-A Pro Cat 18 (1200/150 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA

Dual SIM:

Yes

SIM type:

Nano SIM
Nano SIM
Nano SIM

HD Voice:

Yes

VoLTE:

Yes

Multimedia

Headphones:

3.5mm jack
3.5mm jack
3.5mm jack

Speakers:

Earpiece, Loudspeaker
Earpiece, Loudspeaker
Earpiece, Multiple speakers

Features:

aptX-HD
32-Bit DAC, aptX-HD

Screen mirroring:

DLNA, Wireless screen share
Wireless screen share
Wireless screen share

Radio:

FM

Additional microphone(s):

for Noise cancellation
for Noise cancellation
for Noise cancellation

Connectivity & Features

Bluetooth:

4.2
4.2
5.0

Wi-Fi:

802.11 a, b, g, n, ac, dual-band; MIMO, Wi-Fi Direct, Hotspot
802.11 b, g, n, 802.1x; Wi-Fi Direct, Hotspot
802.11 a, b, g, n, ac, dual-band; MIMO, Wi-Fi Direct, Hotspot

USB:

microUSB, USB 2.0
Type-C (reversible), USB 2.0
Type-C (reversible), USB 3.1

Features:

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

Location:

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

Sensors:

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

Other:

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

Hearing aid compatible:

M4, T3

Regulatory Approval

FCC approval:

Date approved:

Feb 12, 2016
Feb 07, 2021
Jan 11, 2018

FCC ID value:

A3LSMG930F
ZCASMA025U
A3LSMG960U

Measured SAR:

Head:

0.43 W/kg
1.00 W/kg
0.35 W/kg

Body:

1.06 W/kg
0.85 W/kg
0.96 W/kg

Simultaneous Transmission:

1.59 W/kg
1.40 W/kg
1.59 W/kg

Wireless Router:

1.03 W/kg
0.85 W/kg
0.95 W/kg

Buyers information

Price:

$ 699
$ 720

In The Box:

Power brick, USB Cable, Headphones, Sim Card extractor tool

Availability

Officially announced:

Feb 21, 2016
Feb 25, 2018
FCC OKs Cingular\'s purchase of AT&T Wireless