Oppo A91 vs Samsung Galaxy Note9

Network
2G network

GSM 850, 900, 1800, 1900; CDMA 800 & TD-SCDMA

GSM 850, 900, 1800, 1900
3G network

HSDPA 850, 1700(AWS), 1900, 2100

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

LTE frequency band 1(2100), 3(1800), 4(1700/2100), 5(850), 8(900), 34(2000), 38(2600), 39(1900), 40(2300), 41(2500)

LTE frequency band 1(2100), 2(1900), 3(1800), 4(1700/2100), 5(850), 7(2600), 8(900), 12(700), 13(700), 17(700), 18(800), 19(800), 20(800), 25(1900), 26(850), 28(700), 32(1500), 38(2600), 39(1900), 40(2300), 41(2500), 66(1700/2100)
HSDPA speed

42.2 Mbps

42 Mbps
HSUPA speed

11.5 Mbps

5.76 Mbps
LTE speed

LTE-A

LTE-A (5CA), Cat18, 1200 Mbps download, 200 Mbps upload
GPRS

Yes

Yes
EDGE

Yes

Yes

Design
Build

Aluminium alloy, glass

Glass, aluminium alloy
SIM

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

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

160.2 mm

161.9 mm
Width

73.3 mm

76.4 mm
Thickness

7.9 mm

8.8 mm
Weight

172 g

201 g
Stylus

-

Yes(Bluetooth integration)
Payment

-

Samsung Pay(Visa, Mastercard)
Waterproof

-

IP68, 1.5m and 30 minutes
Dust proof

-

IP68
Colors

Dark blue, Blue, Red

Black, Blue, Copper, Purple

Main camera
Camera type

Quad

Dual
Main camera

48 MP, f/1.8 , 26 mm, 1/2.0" , 0.8 µm

12 MP, f/1.5-2.4 , 26 mm, 1/2.55" , 1.4 µm
8 MP, f/2.2 , 13 mm, 1/4.0" , 1.12 µm

12 MP, f/2.4 , 52 mm, 1/3.4" , 1.0 µm
2 MP, f/2.4 , 1/5" , 1.75 µm
2 MP, f/2.4 , 1/5" , 1.75 µm
Primary camera resolution

8000 x 6000 pixels

4032 x 3024 pixels
Primary camera video

2160p@30fps

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

LED flash

LED flash
Primary camera phase detection autofocus

-

phase detection autofocus
Camera features

Autofocus, geotagging, panorama, HDR, touch focus, face detection, white balance settings, ISO settings, exposure compensation, self-timer, scene-mode, macro mode, phase detection autofocus

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

-

107
DxOMark video

-

94
DxOMark camera score

-

103

Selfie camera
Selfie camera

16 MP, f/2 , 26 mm, 1/3.1" , 1.0 µm

8 MP, f/1.7 , 1/3.6" , 1.22 µm
Selfie camera resolution

4608 x 3456 pixels

3264 x 2448 pixels
Selfie camera video

1080p@30fps

1440p@30fps
DxOMark photo

-

96
DxOMark video

-

86
DxOMark camera score

-

92

Connectivity
WLAN

Wi-Fi 802.11a, 802.11b, 802.11g, 802.11n, 802.11n 5Ghz, 802.11ac

Wi-Fi 802.11a, 802.11b, 802.11g, 802.11n, 802.11n 5Ghz, 802.11ac
WLAN WiFi Hotspot

Yes

Yes
WLAN WiFi Direct

Yes

Yes
Wi-Fi display

Yes

-
WLAN WiFi Dual Band

Yes

Yes
USB

Type-C 1.0 reversible connector

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

Yes

Yes
Bluetooth

v5.0

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
Beidou

Yes

Yes

Features
Sensors

Accelerometer, compass, fingerprint, gyroscope, proximity, light

Accelerometer, barometer, compass, fingerprint, gyroscope, hall, heart rate, iris sensor, light, proximity