Samsung Galaxy Z Flip4 vs UMIDIGI A9

Samsung Galaxy Z Flip4

UMIDIGI A9

Network
2G network

GSM 850, 900, 1800, 1900; CDMA 800, 1900

GSM 850, 900, 1800, 1900
3G network

HSDPA 850, 900, 1700(AWS), 1900, 2100; CDMA2000 1xEV-DO

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

LTE frequency band 1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 17, 18, 19, 20, 25, 28, 29, 34, 38, 39, 40, 41, 66

LTE frequency band 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 26, 28, 38, 39, 40, 41, 66
5G network

5G band 1, 3, 20, 41, 77, 78, 79, 81 SA/NSA/Sub6/mmWave

-
HSDPA speed

42.2 Mbps

42.2 Mbps
HSUPA speed

5.76 Mbps

5.76 Mbps
LTE speed

LTE-A (6CA)

LTE, Cat6, 301 Mbps download, 51 Mbps upload
GPRS

Yes

Yes
EDGE

Yes

Yes

Design
Build

Plastic front (opened), glass back (Gorilla Glass Victus+), aluminum frame

Plastic
SIM

Nano-SIM, eSIM

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

84.9 mm

164 mm
Width

71.9 mm

77.14 mm
Thickness

15.9-17.1 mm

9.45 mm
Height unfolded

165.2 mm

-
Width unfolded

71.9 mm

-
Thickness unfolded

6.9 mm

-
Weight

187 g

204 g
Payment

Samsung Pay (Visa, MasterCard certified)

-
Waterproof

IPX8, 1.5m and 30 minutes

IP68/IP69K
Dust proof

-

IP68/IP69K
Colors

Blue, Pink Gold, Graphite, Khaki, Navy, Purple, Red, Yellow

Green

Main camera
Camera type

Dual

Triple
Main camera

(wide) , 12 MP, f/1.8 , 83˚ , 24 mm, 1.8 µm, 10x digital zoom

13 MP, f/1.8
(ultrawide) , 12 MP, f/2.2 , 123˚ , 1.12 µm

8 MP, 77˚
2 MP
Primary camera resolution

4032 x 3024 pixels

4160 x 3120 pixels
Primary camera video

4K@30/60fps, 1080p@60/240fps, 720p@960fps, HDR10+

1080p@30fps
Primary camera flash

LED flash

dual-LED flash
Camera features

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

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

Selfie camera
Selfie camera type

Single

Single
Selfie camera

(wide) , 10 MP, f/2.4 , 80˚ , 26 mm, 1.22 µm

8 MP, f/2.0 , 25 mm
Selfie camera features

Autofocus, face unlock, HDR

Face unlock
Selfie camera video

4K@30fps

1080p@30fps

Connectivity
WLAN

Wi-Fi 802.11a, 802.11b, 802.11g, 802.11n, 802.11n 5GHz, 802.11ac, 802.11ax

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
WLAN WiFi Dual Band

Yes

Yes
USB

Type-C 2.0

Type-C 2.0
USB On-The-Go

Yes

Yes
Bluetooth

v5.2

v4.2
Bluetooth A2DP

Yes

Yes
bluetooth HID

-

Yes
bluetooth LE

Yes

-
NFC

Yes

No
GPS

Yes, with A-GPS

Yes, with A-GPS
GLONASS

Yes

Yes
GALILEO

Yes

-
BDS

Yes

Yes

Features
Sensors

Accelerometer, barometer, compass, fingerprint, gyroscope, proximity

Accelerometer, compass, fingerprint, gyroscope, light, proximity