Oppo K7x vs Samsung Galaxy Z Fold4

Network
2G network

GSM 850, 900, 1800, 1900; CDMA 800

GSM 850, 900, 1800, 1900; CDMA 800, 1900
3G network

HSDPA 800, 850, 900, 1700(AWS), 1900, 2100; CDMA2000 1xEV-DO

HSDPA 850, 900, 1700(AWS), 1900, 2100; CDMA2000 1xEV-DO
4G network

LTE frequency band 1, 2, 3, 4, 5, 7, 8, 34, 38, 39, 40, 41

LTE frequency band 1, 3, 4, 5, 8, 12, 13, 17, 20, 25, 38, 39, 40, 41
5G network

5G band 1, 41, 77, 78 SA/NSA

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 (2CA)

LTE-A (7CA), Cat20, 2000 Mbps download, 200 Mbps upload
5G speed

2.3 Gbps download

-
GPRS

Yes

Yes
EDGE

Yes

Yes

Design
Build

Plastic

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

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

Up to two Nano SIM and one eSIM
Height

162.2 mm

155.1 mm
Width

75.1 mm

67.1 mm
Thickness

9.1 mm

14.2-15.8 mm
Height unfolded

-

155.1 mm
Width unfolded

-

130.1 mm
Thickness unfolded

-

6.3 mm
Weight

194 g

263 g
Stylus

-

Yes
Payment

-

Samsung Pay (Visa, MasterCard certified)
Waterproof

-

IPX8, 1.5m and 30 minutes
Colors

Black, Blue

Black, Beige, Burgundy, Graygreen

Display
Display type

LTPS IPS LCD

Foldable Dynamic AMOLED 2X
Physical size

6.5 inches

7.6 inches
Resolution

1080 x 2400 pixels

1812 x 2176 pixels
Pixel density

405 ppi

373 ppi
Display colors

16777216

16777216
Protection

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

-
Display features

480 nits (typ), 600 nits (peak), 90Hz

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

Quad

Triple
Main camera

(wide) , 48 MP, f/1.7 , 25 mm, 1/2.0" , 0.8 µm

(wide) , 50 MP, f/1.8 , 24 mm, 1.0 µm
(ultrawide) , 8 MP, f/2.2 , 119˚ , 1/4.0" , 1.12 µm

(telephoto) , 10 MP, f/2.4 , 1.0 µm, 67 mm, 3x optical zoom
(macro) , 2 MP, f/2.4

(ultrawide) , 12 MP, f/2.2 , 123˚ , 12 mm, 1.12 µm
(depth) , 2 MP, f/2.4
Primary camera resolution

8000 x 6000 pixels

8190 x 6144 pixels
Primary camera video

4K@30fps, 1080p@30/60/120fps; gyro-EIS

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

LED flash

LED flash
Camera features

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

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
Cover camera

10 MP, 26 mm, f/2.2 , 1.22 µm, 1/3"

Selfie camera
Selfie camera type

Single

Single
Selfie camera

(wide) , 16 MP, f/2.0 , 26 mm, 1/3.06" , 1.0 µm

4 MP, f/1.8 , 2.0 µm
Selfie camera resolution

4640 x 3456 pixels

-
Selfie camera features

Face unlock, HDR

-
Selfie camera video

1080p@30fps

4K@30fps, 1080p@30fps, gyro-EIS

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, 802.11ax
WLAN WiFi Hotspot

Yes

Yes
WLAN WiFi Direct

Yes

Yes
WLAN WiFi Dual Band

Yes

Yes
USB

Type-C 2.0

Type-C 3.2
USB On-The-Go

Yes

Yes
Bluetooth

v5.0

v5.2
Bluetooth A2DP

Yes

Yes
bluetooth LE

Yes

Yes
Bluetooth AptX

aptX HD

aptX HD
NFC

No

Yes
GPS

Yes, with A-GPS

Yes, with A-GPS
GLONASS

Yes

Yes
GALILEO

Yes

Yes
BDS

Yes

Yes

Features
Sensors

Accelerometer, compass, fingerprint, gyroscope, proximity

Accelerometer, barometer, compass, fingerprint, gyroscope, proximity

Battery
Battery type

Li-Po

Li-Po
Battery capacity

5000 mAh

4400 mAh
Battery removable

Non-removable

Non-removable
Fast battery charging

VOOC 4.0 (100% in 65 min)

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

Yes

-
Wireless reverse charging

-

Yes, 4.5W
Fast wireless charging

-

Yes, 15W