Apple Watch 40mm Series 4 Aluminum No LTE vs ZTE nubia Z20

Apple Watch 40mm Series 4 Aluminum No LTE

ZTE nubia Z20

Network
2G network

No

GSM 850, 900, 1800, 1900; CDMA 800 & TD-SCDMA
3G network

No

HSDPA 850, 900, 1900, 2100; CDMA2000 1xEV-DO
4G network

No

LTE frequency band 1(2100), 3(1800), 4(1700/2100), 5(850), 7(2600), 8(900), 20(800), 34(2000), 38(2600), 39(1900), 40(2300), 41(2500)
HSDPA speed

-

42.2 Mbps
HSUPA speed

-

5.76 Mbps
EV-DO speed

-

3.1 Mbps download, 1.8 Mbps upload
LTE speed

-

LTE Cat 18, 1.2 Gbps download, 221 Mbps upload
GPRS

No

Yes
EDGE

No

Yes

Design
Build

Aluminum frame; all-ceramic/sapphire crystal back

Aluminium alloy, glass
SIM

No

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

40 mm

158.6 mm
Width

34 mm

75.2 mm
Thickness

10.7 mm

9.2 mm
Weight

30 g

186 g
Waterproof

50m

-
Colors

Gray, Gold, Silver

Black, Blue, Red

Display
Display type

LTPO AMOLED

AMOLED
Physical size

1.57 inches

6.42 inches
Resolution

394 x 324 pixels

1080 x 2340 pixels
Pixel density

326 ppi

401 ppi
Display colors

16777216

16777216
Protection

Ion-X strengthened glass

Scratch resistant, Corning Gorilla Glass
Multitouch

Yes

Yes
Display features

3D Touch display, 1000 nits

Always-on display, DC dimming, HDR10
Additional display

-

AMOLED
Resolution of additional display

-

720 x 1520 pixels
Size of additional display

-

5.1 inches

Main camera
Camera type

-

Triple
Primary camera

No

-
Main camera

48 MP, f/1.7 , 26 mm, 1/2" , 0.8 µm, 3x optical zoom
8 MP
16 MP, 12 mm
Primary camera resolution

-

8000 x 6000 pixels
Primary camera video

-

4320@15fps, 2160p@30/60fps, 1080p@30/60fps, 720p@1920fps
Primary camera flash

-

dual-LED dual-tone flash
Camera features

-

Autofocus, continuous shooting, digital 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

Connectivity
WLAN

Wi-Fi 802.11b, 802.11g, 802.11n

Wi-Fi 802.11a, 802.11b, 802.11g, 802.11n, 802.11n 5Ghz, 802.11ac
WLAN WiFi Hotspot

-

Yes
WLAN WiFi Direct

-

Yes
WLAN WiFi Dual Band

-

Yes
USB

No

Type-C 1.0 reversible connector
USB On-The-Go

-

Yes
Bluetooth

v5.0

v5.0
Bluetooth A2DP

Yes

Yes
bluetooth LE

Yes

Yes
Infrared

-

Yes
NFC

Yes

-
GPS

Yes, with A-GPS

Yes, with A-GPS
GLONASS

Yes

Yes
GALILEO

Yes

Yes
Beidou

-

Yes
QZSS

Yes

-