Samsung Galaxy M21s vs Zoji Z33

Samsung Galaxy M21s

Zoji Z33

Network
2G network

GSM 850, 900, 1800, 1900

GSM 850, 900, 1800, 1900
3G network

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

W-CDMA 850, 900, 1800, 1900, TD-SCDMA 1880-1920, 2010-2025
4G network

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

LTE frequency band 1(2100), 3(1800), 5(850), 7(2600), 8(900), 18(800), 28(700), 38(2600), 40(2300), 41(2500)
HSDPA speed

42.2 Mbps

-
HSUPA speed

5.76 Mbps

-
LTE speed

LTE-A, 603 Mbps download, 150 Mbps upload

LTE Cat 4, 150.8 Mbps download, 51 Mbps upload
GPRS

Yes

Yes
EDGE

Yes

Yes

Design
Build

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

-
SIM

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

Dual SIM (Nano-SIM)
Height

159.2 mm

156.7 mm
Width

75.1 mm

77 mm
Thickness

8.9 mm

12 mm
Weight

191 g

213 g
Waterproof

-

IP68
Dust proof

-

IP68
Colors

Black, Blue

Black, Orange

Display
Display type

Super AMOLED

IPS capacitive touchscreen
Physical size

6.4 inches

5.85 inches
Resolution

1080 x 2340 pixels

720 x 1512 pixels
Pixel density

403 ppi

269 ppi
Display colors

16777216

16777216
Protection

2.5D curved glass screen, Corning Gorilla Glass 3

Scratch resistant, Corning Gorilla Glass
Multitouch

-

Yes
Display features

420 nits (typ), Infinity U Display

-

Main camera
Camera type

Triple

Dual
Main camera

(wide) , 64 MP, f/1.8 , 26 mm, 1/1.72" , 0.8 µm

16 MP, f/2
(ultrawide) , 8 MP, f/2.2 , 1/4.0" , 1.12 µm

2 MP
(depth) , 5 MP, f/2.2
Primary camera resolution

9280 x 6920 pixels

4608 x 3456 pixels
Primary camera video

4K@30fps, 1080p@30fps, gyro-EIS

1080p@30fps
Primary camera flash

LED flash

dual 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, phase detection autofocus

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

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, 802.11 5GHz
WLAN WiFi Hotspot

Yes

Yes
WLAN WiFi Direct

Yes

-
WLAN WiFi Dual Band

Yes

Yes
USB

Type-C 2.0

Type-C reversible connector
USB On-The-Go

-

Yes
Bluetooth

v5.0

v4.0
Bluetooth A2DP

Yes

Yes
bluetooth LE

Yes

-
NFC

No

-
GPS

Yes, with A-GPS

Yes, with A-GPS
GLONASS

Yes

Yes
GALILEO

Yes

-
Beidou

-

Yes
BDS

Yes

-