Samsung Galaxy M51 vs Samsung Galaxy Z Flip4

Samsung Galaxy M51

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, 1700(AWS), 1900, 2100

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

LTE frequency band 1, 2, 3, 4, 5, 7, 8, 12, 17, 20, 26, 28, 38, 40, 41, 66

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 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, (2CA) Cat6, 400 Mbps download, 50 Mbps upload

LTE-A (6CA)
GPRS

Yes

Yes
EDGE

Yes

Yes

Design
Build

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

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

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

Nano-SIM, eSIM
Height

163.9 mm

84.9 mm
Width

76.3 mm

71.9 mm
Thickness

9.5 mm

15.9-17.1 mm
Height unfolded

-

165.2 mm
Width unfolded

-

71.9 mm
Thickness unfolded

-

6.9 mm
Weight

213 g

187 g
Payment

-

Samsung Pay (Visa, MasterCard certified)
Waterproof

-

IPX8, 1.5m and 30 minutes
Colors

Black, Blue

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

Hardware
CPU

Octa-core

Octa-core
CPU

Quad-core 2.2 GHz Kryo 470 Gold

Single-core 3.19 GHz Cortex-X2
CPU(second)

Hexa-core 1.8 GHz Kryo 470 Silver

Triple-core 2.75 GHz Cortex-A710
CPU(third)

Quad-core 1.8 GHz Cortex-A510
Chipset

Qualcomm SDM730 Snapdragon 730G

Qualcomm SM8475 Snapdragon 8+ Gen 1
GPU

Adreno 618

Adreno 730
Memory RAM

6, 8 GB

8 GB
Internal storage

128 GB

128, 256, 512 GB
Memory card

microSD, microSDHC, microSDXC

No
Memory card max

512 GB

-
Storage

UFS 2.1

UFS 3.1

Main camera
Camera type

Quad

Dual
Main camera

(wide) , 64 MP, f/1.8 , 26 mm, 1/1.73" , 0.8 µm

(wide) , 12 MP, f/1.8 , 24 mm, 1.8 µm, 83˚ , 10x digital zoom
(ultrawide) , 12 MP, f/2.2 , 123˚ , 1.12 µm

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

9280 x 6944 pixels

4032 x 3024 pixels
Primary camera video

4K@30fps, 1080p@30fps

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

Selfie camera
Selfie camera type

-

Single
Selfie camera

(wide) , 32 MP, f/2.0 , 26 mm, 1/2.8" , 0.8 µm

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

6560 x 4928 pixels

-
Selfie camera features

-

Autofocus, face unlock, HDR
Selfie camera video

4K@30fps, 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
WLAN WiFi Dual Band

Yes

Yes
USB

Type-C 2.0

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
BDS

Yes

Yes