Samsung Galaxy A51 5G vs Samsung Galaxy Z Flip4

Samsung Galaxy A51 5G

Samsung Galaxy Z Flip4

Network
2G network

GSM 850, 900, 1800, 1900

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

HSDPA 850, 900, 1900, 2100 - global; HSDPA 850, 900, 1700(AWS), 1900, 2100

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

LTE frequency band 1, 3, 4, 5, 7, 8, 12, 20, 28, 38, 40, 41 - global

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
5G network

5G band 41, 78 SA/NSA/Sub6 - global

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

LTE-A (6CA)
5G speed

5G

-
GPRS

Yes

Yes
EDGE

Yes

Yes

Design
Build

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

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

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

Nano-SIM, eSIM
Height

158.9 mm

84.9 mm
Width

73.6 mm

71.9 mm
Thickness

8.7 mm

15.9-17.1 mm
Height unfolded

-

165.2 mm
Width unfolded

-

71.9 mm
Thickness unfolded

-

6.9 mm
Weight

187 g

187 g
Payment

-

Samsung Pay (Visa, MasterCard certified)
Waterproof

-

IPX8, 1.5m and 30 minutes
Colors

Black, Pink, White

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

Main camera
Camera type

Quad

Dual
Main camera

48 MP, f/2.0 , 26 mm, 1/2.0" , 0.8 µm

12 MP, f/1.8 , 24 mm, 1.8 µm, (wide) , 83˚ , 10x digital zoom
12 MP, f/2.2

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

8000 x 6000 pixels

4032 x 3024 pixels
Primary camera video

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

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

LED flash

LED flash
Camera features

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, phase detection autofocus

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
DxOMark photo

90

-
DxOMark zoom

32

-
DxOMark video

86

-
DxOMark camera score

87

-

Selfie camera
Selfie camera type

-

Single
Selfie camera

32 MP, f/2.2 , 26 mm, 1/2.8" , 0.8 µm

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

6560 x 4928 pixels

-
Selfie camera features

-

Autofocus, face unlock, HDR
Selfie camera video

1080p@30fps

4K@30fps

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
Wi-Fi display

Yes

-
WLAN WiFi Dual Band

Yes

Yes
USB

Type-C 1.0 reversible connector

Type-C 2.0
USB On-The-Go

Yes

Yes
Bluetooth

v5.0

v5.2
Bluetooth A2DP

Yes

Yes
bluetooth LE

Yes

Yes
NFC

Yes

Yes
GPS

Yes, with A-GPS

Yes, with A-GPS
GLONASS

Yes

Yes
GALILEO

Yes

Yes
Beidou

Yes

-
BDS

-

Yes