Cat S53 vs Meizu 21

Network
2G network

GSM 850, 900, 1800, 1900

GSM 850, 900, 1800, 1900
3G network

HSDPA 800, 850, 900, 1700(AWS), 1900, 2100

HSDPA 850, 900, 1700(AWS), 2100
4G network

LTE frequency band 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 34, 38, 39, 40, 41, 66

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

5G band 1, 41, 77, 78, 79 SA/NSA

5G band 1, 3, 5, 8, 28, 38, 41, 77, 78 SA/NSA
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, 600 Mbps download, 150 Mbps upload

LTE-A
GPRS

Yes

Yes
EDGE

Yes

Yes

Design
Build

Aluminium alloy, TPU, polycarbonate

Aluminium alloy, glass
SIM

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

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

171 mm

156.7 mm
Width

81 mm

75.3 mm
Thickness

16 mm

7.9 mm
Weight

320 g

198 g
Waterproof

IP68/IP69 (1.5m and 35 minutes)

IP54
Dust proof

IP68/IP69

IP54
Resistance drop

1.8m

-
MIL-STD-810H

Yes

-
Flashlight

Yes

-
Colors

Black

Black, Green, Purple, White

Display
Display type

IPS LCD

AMOLED
Physical size

6.5 inches

6.55 inches
Resolution

720 x 1600 pixels

1080 x 2340 pixels
Pixel density

270 ppi

393 ppi
Display colors

-

1073741824
Protection

Scratch resistant

Scratch resistant, 2.5D curved glass screen
Display features

-

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

Hardware
CPU

Octa-core

Octa-core
CPU

Dual-core 2.0 GHz Kryo 460

Single-core 3.3 GHz Cortex-X4
CPU(second)

Hexa-core 1.8 GHz Kryo 460

Penta-core 3.2 GHz Cortex-A720
CPU(third)

Dual-core 2.3 GHz Cortex-A520
Chipset

Qualcomm SM4350 Snapdragon 480 5G

Qualcomm SM8650-AB Snapdragon 8 Gen 3
GPU

Adreno 619

Adreno 740
Memory RAM

6 GB

8, 12 GB
Internal storage

128 GB

256, 512 GB
Memory card

microSD, microSDHC, microSDXC

No
Storage

-

UFS 4.0

Main camera
Camera type

Dual

Triple
Main camera

(wide) , 48 MP, f/1.8 , 1/2.0" , 0.8 µm

(wide) , 200 MP, f/1.7 , 22 mm
(macro) , 2 MP, 1.75 µm

(ultrawide) , 13 MP, f/2.4 , 122˚ , 15 mm
(wide) , 5 MP, f/2.4 , 27 mm
Primary camera resolution

8000 x 6000 pixels

-
Primary camera video

1080p@30fps

8K, 4K, 1080p; gyro-EIS
Primary camera flash

LED flash

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

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, 802.11be
WLAN WiFi Hotspot

Yes

Yes
WLAN WiFi Direct

Yes

Yes
WLAN WiFi Dual Band

Yes

Yes
USB

Type-C 3.0

Type-C 2.0
USB On-The-Go

Yes

Yes
Bluetooth

v5.1

v5.4
Bluetooth A2DP

A2DP

Yes
bluetooth LE

LE

Yes
Infrared

-

Yes
NFC

Yes

Yes
GPS

Yes, with A-GPS

Yes, with dual-band A-GPS
GLONASS

-

Yes
GALILEO

-

Yes
BDS

-

Yes
QZSS

-

Yes
NavIC

-

Yes