Samsung Galaxy S9 vs Samsung Galaxy Z Flip

Network
2G network

GSM 850, 900, 1800, 1900

GSM 850, 900, 1800, 1900
3G network

HSDPA 850, 900, 1700(AWS), 1900, 2100

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

LTE

LTE frequency band 1(2100), 2(1900), 3(1800), 4(1700/2100), 5(850), 7(2600), 8(900), 12(700), 13(700), 14(700), 17(700), 18(800), 19(800), 20(800), 25(1900), 26(850), 28(700), 29(700), 30(2300), 34(2000), 38(2600), 39(1900), 40(2300), 41(2500), 46(5200), 66(1700/2100), 71(600)
HSDPA speed

42.2 Mbps

42.2 Mbps
HSUPA speed

5.76 Mbps

5.76 Mbps
LTE speed

-

LTE-A (5CA), Cat16, 1000 Mbps download, 150 Mbps upload
LTE-A speed

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

Aluminium alloy, glass
SIM

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

Nano-SIM, eSIM
Height

147.7 mm

87.4 mm
Width

68.7 mm

73.6 mm
Thickness

8.5 mm

17.3 mm
Height unfolded

-

167.3 mm
Width unfolded

-

73.6 mm
Thickness unfolded

-

7.2 mm
Weight

163 g

183 g
Payment

Samsung Pay(Visa, Mastercard certified)

-
Waterproof

IP68, 1.5m and 30 minutes

-
Dust proof

Yes, IP68

-
Colors

Coral Blue, Lilac Purple, Midnight Black, Titanium Gray

Black, Gold, Purple

Display
Display type

Super AMOLED capacitive touchscreen

Foldable Dynamic AMOLED capacitive touchscreen
Physical size

5.8 inches

1.1 inches
Resolution

1440 x 2960 pixels

112 x 300 pixels
Physical size unfolded

-

6.7 inches
Resolution unfolded

-

1080 x 2636 pixels
Pixel density

570 ppi

425 ppi
Display colors

16777216

16777216
Protection

Corning Gorilla Glass 5

Scratch resistant
Multitouch

Yes

Yes
Display features

HDR10 compliant, 3D Touch, Always-on display

HDR10+

Hardware
CPU

Octa-core

Octa-core
CPU

Quad-core 2.7 GHz Mongoose M3

Single-core 2.95 GHz Kryo 485
CPU(second)

quad-core 1.8 GHz Cortex-A55

Triple-core 2.41 GHz Kryo 485
CPU(third)

Quad-core 1.78 GHz Kryo 485
Chipset

Exynos 9810 Octa / Qualcomm SDM845 Snapdragon 845

Qualcomm SM8150 Snapdragon 855+
GPU

Mali-G72 MP18 / Adreno 630

Adreno 640
Internal storage

64, 128, 256 GB

256 GB
Memory RAM

4 GB

8 GB
Memory card

microSD(uses second SIM slot)

No
Memory card max

400 GB

-

Main camera
Camera type

Photo / Video

-
Camera type

-

Dual
Main camera

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

12 MP, f/1.8 , 27 mm, 1/2.55" , 1.4 µm
12 MP, f/2.2 , 12 mm, 1.12 µm
Primary camera resolution

4032 x 3024 pixels

4032 x 3024 pixels
Primary camera video

2160p@60fps, 1080p@240fps, 720p@960fps

2160p@30/60fps, 1080p@60/240fps, 720p@960fps
Primary camera 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

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

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

-

109
DxOMark video

-

96
DxOMark camera score

-

105

Selfie camera
Selfie camera

8 MP, f/1.7 , 25 mm, 1/3.6" , 1.22 µm

10 MP, f/2.4 , 26 mm, 1.22 µm
Selfie camera resolution

3264 x 2448 pixels

3840 x 2160 pixels
Secondary camera autofocus

autofocus

-
Secondary camera dual video call

dual video call

-
Secondary camera HDR

Auto HDR

-
Selfie camera video

1440p@30fps

2160p@30fps
DxOMark photo

-

82
DxOMark video

-

86
DxOMark camera score

-

83

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 1.0 reversible connector

Type-C 1.0 reversible connector
Bluetooth

v5.0

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

Yes
Beidou

-

Yes
BDS

Yes

-

Features
Messaging SMS

SMS(threaded view)

-
Messaging MMS

MMS

-
Messaging Email

Email

-
Messaging IM

IM

-
Messaging Push Mail

Push Mail

-
Sensors

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

Accelerometer, barometer, compass, fingerprint, gyroscope, proximity