Oppo A5s (AX5s) vs Samsung Galaxy S9

Network
2G network

GSM 850, 900, 1800, 1900

GSM 850, 900, 1800, 1900
3G network

HSDPA 850, 900, 2100

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

LTE frequency band 1(2100), 3(1800), 5(850), 7(2600), 8(900), 20(800), 28(700), 38(2600), 40(2300), 41(2500)

LTE
HSDPA speed

-

42.2 Mbps
HSUPA speed

-

5.76 Mbps
LTE speed

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

-
LTE-A speed

-

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

Yes

Yes
EDGE

Yes

Yes

Design
Build

Aluminium alloy

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

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

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

155.9 mm

147.7 mm
Width

75.4 mm

68.7 mm
Thickness

8.2 mm

8.5 mm
Weight

170 g

163 g
Payment

-

Samsung Pay(Visa, Mastercard certified)
Waterproof

-

IP68, 1.5m and 30 minutes
Dust proof

-

Yes, IP68
Colors

Black, Green, Gold, Red

Coral Blue, Lilac Purple, Midnight Black, Titanium Gray

Hardware
CPU

Octa-core

Octa-core
CPU

Quad-core 2.3 GHz Cortex-A53

Quad-core 2.7 GHz Mongoose M3
CPU(second)

quad-core 1.8 GHz Cortex-A53

quad-core 1.8 GHz Cortex-A55
Chipset

Mediatek MT6765 Helio P35

Exynos 9810 Octa / Qualcomm SDM845 Snapdragon 845
GPU

PowerVR GE8320

Mali-G72 MP18 / Adreno 630
Memory RAM

2, 3, 4 GB

4 GB
Internal storage

32, 64 GB

64, 128, 256 GB
Memory card

microSD, microSDHC, microSDXC

microSD(uses second SIM slot)
Memory card max

256 GB

400 GB

Main camera
Camera type

Dual

-
Camera type

-

Photo / Video
Main camera

13 MP, f/2.2 , 1.12 µm

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

4160 x 3120 pixels

4032 x 3024 pixels
Primary camera video

1080p@30fps

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

phase detection 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

Autofocus, continuous shooting, digital zoom, geotagging, panorama, HDR, touch focus, face detection, white balance settings, ISO settings, exposure compensation, self-timer, scene-mode

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

Connectivity
WLAN

Wi-Fi 802.11b, 802.11g, 802.11n

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
USB

microUSB 2.0

Type-C 1.0 reversible connector
USB On-The-Go

Yes

-
Bluetooth

v4.2

v5.0
Bluetooth A2DP

Yes

Yes
bluetooth LE

Yes

Yes
Bluetooth AptX

-

Yes
NFC

-

Yes
GPS

Yes, with A-GPS

Yes, with A-GPS
GLONASS

Yes

Yes
GALILEO

Yes

Yes
BDS

Yes

Yes

Features
Messaging SMS

-

SMS(threaded view)
Messaging MMS

-

MMS
Messaging Email

-

Email
Messaging IM

-

IM
Messaging Push Mail

-

Push Mail
Sensors

Accelerometer, compass, fingerprint, proximity

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