Meizu 21 vs 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), 2100

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

LTE frequency band 1, 3, 4, 5, 7, 8, 18, 19, 26, 28, 34, 38, 39, 40, 41

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, 5, 8, 28, 38, 41, 77, 78 SA/NSA

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
EV-DO speed

EV-DO Rev.A 3.1 Mbps download, 1.8 Mbps upload

-
LTE speed

LTE-A

LTE-A (6CA)
GPRS

Yes

Yes
EDGE

Yes

Yes

Design
Build

Aluminium alloy, glass

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

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

Nano-SIM, eSIM
Height

156.7 mm

84.9 mm
Width

75.3 mm

71.9 mm
Thickness

7.9 mm

15.9-17.1 mm
Height unfolded

-

165.2 mm
Width unfolded

-

71.9 mm
Thickness unfolded

-

6.9 mm
Weight

198 g

187 g
Payment

-

Samsung Pay (Visa, MasterCard certified)
Waterproof

IP54

IPX8, 1.5m and 30 minutes
Dust proof

IP54

-
Colors

Black, Green, Purple, White

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

Display
Display type

AMOLED

Foldable Dynamic AMOLED 2X
Physical size

6.55 inches

6.7 inches
Resolution

1080 x 2340 pixels

1080 x 2640 pixels
Pixel density

393 ppi

426 ppi
Display colors

1073741824

16777216
Protection

Scratch resistant, 2.5D curved glass screen

-
Display features

120Hz, HDR10+, 600 nits (typ), 1100 nits (HBM), 1800 nits (peak)

120Hz, HDR10+, 1200 nits (peak)
Cover display

-

Super AMOLED
Cover display physical size

-

1.9 inches
Cover display resolution

-

260 x 512 pixels

Hardware
CPU

Octa-core

Octa-core
CPU

Single-core 3.3 GHz Cortex-X4

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

Penta-core 3.2 GHz Cortex-A720

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

Dual-core 2.3 GHz Cortex-A520

Quad-core 1.8 GHz Cortex-A510
Chipset

Qualcomm SM8650-AB Snapdragon 8 Gen 3

Qualcomm SM8475 Snapdragon 8+ Gen 1
GPU

Adreno 740

Adreno 730
Memory RAM

8, 12 GB

8 GB
Internal storage

256, 512 GB

128, 256, 512 GB
Memory card

No

No
Storage

UFS 4.0

UFS 3.1

Main camera
Camera type

Triple

Dual
Main camera

(wide) , 200 MP, f/1.7 , 22 mm

(wide) , 12 MP, f/1.8 , 24 mm, 83˚ , 1.8 µm, 10x digital zoom
(ultrawide) , 13 MP, f/2.4 , 122˚ , 15 mm

(ultrawide) , 12 MP, f/2.2 , 123˚ , 1.12 µm
(wide) , 5 MP, f/2.4 , 27 mm
Primary camera resolution

-

4032 x 3024 pixels
Primary camera video

8K, 4K, 1080p; gyro-EIS

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

Ring-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, macro-mode, phase detection autofocus, laser autofocus, DarkVision, pure fusion, live photo, super night view 5.0

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

Single
Selfie camera

(wide) , 32 MP, f/2.4

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

Face unlock, face detection, HDR

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, 802.11ax, 802.11be

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

v5.4

v5.2
Bluetooth A2DP

Yes

Yes
bluetooth LE

Yes

Yes
Infrared

Yes

-
NFC

Yes

Yes
GPS

Yes, with dual-band A-GPS

Yes, with A-GPS
GLONASS

Yes

Yes
GALILEO

Yes

Yes
BDS

Yes

Yes
QZSS

Yes

-
NavIC

Yes

-