Samsung Galaxy A21s vs Samsung Galaxy Z Fold4

Samsung Galaxy A21s

Samsung Galaxy Z Fold4

Network
2G network

GSM 850, 900, 1800, 1900

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

HSDPA 850, 900, 1900, 2100

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

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

LTE frequency band 1, 3, 4, 5, 8, 12, 13, 17, 20, 25, 38, 39, 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, Cat4, 151 Mbps download, 51 Mbps upload

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

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

Up to two Nano SIM and one eSIM
Height

163.7 mm

155.1 mm
Width

75.3 mm

67.1 mm
Thickness

8.9 mm

14.2-15.8 mm
Height unfolded

-

155.1 mm
Width unfolded

-

130.1 mm
Thickness unfolded

-

6.3 mm
Weight

192 g

263 g
Stylus

-

Yes
Payment

-

Samsung Pay (Visa, MasterCard certified)
Waterproof

-

IPX8, 1.5m and 30 minutes
Colors

Black, Blue, Red, White

Black, Beige, Burgundy, Graygreen

Main camera
Camera type

Quad

Triple
Main camera

48 MP, f/2.0 , 26 mm, 1/2.0" , 0.8 µm

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

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

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

8000 x 6000 pixels

8190 x 6144 pixels
Primary camera video

1080p@30fps

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

LED flash

LED flash
Camera features

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

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"

Connectivity
WLAN

Wi-Fi 802.11b, 802.11g, 802.11n

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 1.0 reversible connector

Type-C 3.2
USB On-The-Go

-

Yes
Bluetooth

v5.0

v5.2
Bluetooth A2DP

Yes

Yes
bluetooth LE

Yes

Yes
Bluetooth AptX

-

aptX HD
NFC

Yes (market dependent)

Yes
GPS

Yes, with A-GPS

Yes, with A-GPS
GLONASS

Yes

Yes
GALILEO

Yes

Yes
Beidou

Yes

-
BDS

-

Yes