Samsung Galaxy A3 (2017) vs Samsung Galaxy S9

Network
2G network

GSM 850, 900, 1800, 1900 - EMEA; HSDPA 850, 900, 1700(AWS), 1900, 2100 - SEA, LATAM

GSM 850, 900, 1800, 1900
3G network

HSDPA 850, 900, 1900, 2100 - EMEA; HSDPA 850, 900, 1700(AWS), 1900, 2100 - SEA, LATAM

HSDPA 850, 900, 1700(AWS), 1900, 2100
4G network

LTE frequency band 1(2100), 2(1900), 3(1800), 5(850), 7(2600), 8(900), 20(800), 40(2300) - EMEA; LTE frequency band 1(2100), 2(1900), 3(1800), 4(1700/2100), 5(850), 7(2600), 8(900), 17(700), 20(800), 28(700), 38(2600), 40(2300), 41(2500) - SEA, LATAM

LTE
HSDPA speed

42.2 Mbps

42.2 Mbps
HSUPA speed

5.76 Mbps

5.76 Mbps
LTE-A speed

LTE-A, (2CA) Cat6, 300 Mbps download, 50 Mbps upload

LTE-A, (6CA) Cat18, 1200 Mbps download, 200 Mbps upload
GPRS

Yes

Yes
EDGE

Yes

Yes

Design
Build

-

Front/back glass (Gorilla Glass 5), aluminum frame
SIM

Single SIM (Nano-SIM) or Dual SIM (Nano-SIM, dual stand-by)

Single SIM (Nano-SIM) or Hybrid Dual SIM (Nano-SIM, dual stand-by)
Height

135.4 mm

147.7 mm
Width

66.2 mm

68.7 mm
Thickness

7.9 mm

8.5 mm
Weight

135 g

163 g
Payment

-

Samsung Pay(Visa, Mastercard certified)
Waterproof

1.5 m and 30 minutes

IP68, 1.5m and 30 minutes
Dust proof

Yes

Yes, IP68
Colors

Black Sky, Blue Mist, Gold Sand, Peach Cloud

Coral Blue, Lilac Purple, Midnight Black, Titanium Gray

Display
Display type

Super AMOLED capacitive touchscreen

Super AMOLED capacitive touchscreen
Physical size

4.7 inches

5.8 inches
Resolution

720 x 1280 pixels

1440 x 2960 pixels
Pixel density

312 ppi

570 ppi
Display colors

16777216

16777216
Protection

Corning Gorilla Glass

Corning Gorilla Glass 5
Multitouch

Yes

Yes
Display features

-

HDR10 compliant, 3D Touch, Always-on display

Main camera
Camera type

-

Photo / Video
Main camera

13 MP, f/1.9

12 MP, f/1.5-2.4 , 26 mm, 1/2.5" , 1.4 µm
Primary camera resolution

-

4032 x 3024 pixels
Primary camera video

1080p@30fps

2160p@60fps, 1080p@240fps, 720p@960fps
Primary camera Autofocus

autofocus

dual pixel phase detection autofocus
Primary camera flash

LED flash

LED flash
Primary camera optical image stabilization

-

optical image stabilization
Primary camera video dual video

-

dual-video record
Primary camera video hdr

-

HDR
Camera features

Geo-tagging, face detection, panorama, touch focus

Auto HDR, Geo-tagging, face/smile detection, panorama, simultaneous 4K video and 9MP image recording, touch focus

Connectivity
WLAN

Wi-Fi 802.11a, 802.11b, 802.11g, 802.11n, 802.11ac

Wi-Fi 802.11a, 802.11b, 802.11g, 802.11n, 802.11ac
WLAN WiFi Hotspot

Yes

Yes
WLAN WiFi Direct

Yes

Yes
WLAN WiFi Dual Band

Yes

Yes
USB

Type-C reversible connector

Type-C 1.0 reversible connector
Bluetooth

v4.2

v5.0
Bluetooth A2DP

Yes

Yes
bluetooth LE

Yes

Yes
Bluetooth AptX

-

Yes
NFC

Yes

Yes
GPS

Yes, with A-GPS

Yes, with A-GPS
GLONASS

Yes

Yes
GALILEO

-

Yes
BDS

Yes

Yes

Features
Messaging SMS

SMS(threaded view)

SMS(threaded view)
Messaging MMS

MMS

MMS
Messaging Email

Email

Email
Messaging IM

IM

IM
Messaging Push Mail

Push Mail

Push Mail
Java

No

-
Sensors

Fingerprint (front-mounted), accelerometer, barometer, compass, gyro, proximity

Iris scanner, SpO2, accelerometer, barometer, compass, fingerprint (rear-mounted), gyro, heart rate, proximity