Samsung Galaxy Z Fold4 vs Xiaomi Redmi 9

Samsung Galaxy Z Fold4

Xiaomi Redmi 9

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, 3, 4, 5, 8, 12, 13, 17, 20, 25, 38, 39, 40, 41

LTE frequency band 1, 2, 3, 4, 5, 7, 8, 20, 28, 38, 40, 41
5G network

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

-
HSDPA speed

42.2 Mbps

42.2 Mbps
HSUPA speed

5.76 Mbps

5.76 Mbps
LTE speed

LTE-A (7CA), Cat20, 2000 Mbps download, 200 Mbps upload

LTE-A
GPRS

Yes

Yes
EDGE

Yes

Yes

Design
Build

Glass front (Gorilla Glass Victus+) (folded), plastic front (unfolded), glass back (Gorilla Glass Victus+), aluminum frame

Glass front (Gorilla Glass 3), plastic back, plastic frame
SIM

Up to two Nano SIM and one eSIM

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

155.1 mm

163.3 mm
Width

67.1 mm

77 mm
Thickness

14.2-15.8 mm

9.1 mm
Height unfolded

155.1 mm

-
Width unfolded

130.1 mm

-
Thickness unfolded

6.3 mm

-
Weight

263 g

198 g
Stylus

Yes

-
Payment

Samsung Pay (Visa, MasterCard certified)

-
Waterproof

IPX8, 1.5m and 30 minutes

-
Colors

Black, Beige, Burgundy, Graygreen

Blue/Pink, Gray, Green, Purple

Display
Display type

Foldable Dynamic AMOLED 2X

IPS LCD capacitive touchscreen
Physical size

7.6 inches

6.53 inches
Resolution

1812 x 2176 pixels

1080 x 2340 pixels
Pixel density

373 ppi

395 ppi
Display colors

16777216

16777216
Protection

-

Scratch resistant, 2.5D curved glass screen, Corning Gorilla Glass 3
Display features

120Hz, HDR10+, 1200 nits (peak)

-
Cover display

Dynamic AMOLED 2X

-
Cover display physical size

6.2 inches

-
Cover display resolution

904 x 2316 pixels

-
Cover display features

120Hz, 120Hz, Corning Gorilla Glass Victus+

-

Main camera
Camera type

Triple

Quad
Main camera

(wide) , 50 MP, f/1.8 , 24 mm, 1.0 µm

13 MP, f/2.2 , 28 mm, 1.12 µm, 1/3.1"
(telephoto) , 10 MP, f/2.4 , 67 mm, 1.0 µm, 3x optical zoom

8 MP, f/2.2 , 1.12 µm, 1/4.0"
123˚ , (ultrawide) , 12 MP, f/2.2 , 12 mm, 1.12 µm

5 MP, f/2.4
2 MP, f/2.4
Primary camera resolution

8190 x 6144 pixels

4160 x 3120 pixels
Primary camera video

4K@60fps, 1080p@60/240fps (gyro-EIS), 720p@960fps (gyro-EIS), HDR10+

1080p@30fps
Primary camera flash

LED flash

LED flash
Camera features

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

Autofocus, digital 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
Cover camera

10 MP, 26 mm, f/2.2 , 1.22 µm, 1/3"

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, 802.11ac
WLAN WiFi Hotspot

Yes

Yes
WLAN WiFi Direct

Yes

Yes
WLAN WiFi Dual Band

Yes

-
USB

Type-C 3.2

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

Yes

Yes
Bluetooth

v5.2

v5.0
Bluetooth A2DP

Yes

Yes
bluetooth LE

Yes

Yes
Bluetooth AptX

aptX HD

-
Infrared

-

Yes
NFC

Yes

-
GPS

Yes, with A-GPS

Yes, with A-GPS
GLONASS

Yes

Yes
GALILEO

Yes

-
Beidou

-

Yes
BDS

Yes

-

Features
Sensors

Accelerometer, barometer, compass, fingerprint, gyroscope, proximity

Accelerometer, compass, fingerprint, proximity

Battery
Battery type

Li-Po

Li-Po
Battery capacity

4400 mAh

5020 mAh
Battery removable

Non-removable

Non-removable
Fast battery charging

Quick Charge, 25W (50% in 30 min)

Qualcomm Quick Charge 3.0
Wireless reverse charging

Yes, 4.5W

-
Fast wireless charging

Yes, 15W

-
DxOMark autonomy

-

55
DxOMark charging

-

51
DxOMark efficiency

-

55
DxOMark battery score

-

54

Samsung Galaxy Z Fold4 comparisons