Apple Watch SE 44mm Cellular vs UMIDIGI Z2 Special Edition

Apple Watch SE 44mm Cellular

UMIDIGI Z2 Special Edition

Network
2G network

GSM 850, 900, 1800, 1900

GSM 850, 900, 1800, 1900; CDMA 800, 1900
3G network

HSDPA 850, 1700(AWS), 1900, 2100

HSDPA 850, 900, 1700, 1900, 2100
4G network

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

LTE frequency band 1(2100), 3(1800), 4(1700/2100), 5(850), 7(2600), 8(900), 12(700), 18(800), 39(1900); LTE-TDD 1900, 2300, 2500, 2600 MHz
EV-DO speed

-

3.1 Mbps download, 1.8 Mbps upload
LTE speed

-

LTE, Cat7, 301 Mbps download, 102 Mbps upload
GPRS

-

Yes
EDGE

-

Yes

Design
Build

Glass front, ceramic/sapphire crystal back, aluminum frame

Aluminium alloy, glass
SIM

eSIM

Dual SIM (Nano-SIM/Nano-SIM(microSD))
Height

44 mm

153.4 mm
Width

38 mm

74.4 mm
Thickness

10.4 mm

8.3 mm
Weight

36.4 g

165 g
Waterproof

50 m

-
Colors

Gray, Gold, Silver

Black, Blue, Purple

Display
Display type

Retina LTPO OLED

IPS capacitive touchscreen
Physical size

1.78 inches

6.2 inches
Resolution

448 x 368 pixels

1080 x 2246 pixels
Pixel density

326 ppi

402 ppi
Display colors

16777216

16777216
Protection

Ion-X strengthened glass

Scratch resistant, 2.5D curved glass screen
Multitouch

-

Yes
Display features

1000 nits (peak), 3D Touch display

-

Connectivity
WLAN

Wi-Fi 802.11b, 802.11g, 802.11n

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

-

Yes
WLAN WiFi Direct

-

Yes
Wi-Fi display

-

Yes
WLAN WiFi Dual Band

-

Yes
USB

No

Type-C reversible connector
USB On-The-Go

-

Yes
Bluetooth

v5.0

v4.2
Bluetooth A2DP

Yes

Yes
bluetooth HID

-

Yes
bluetooth LE

Yes

-
NFC

Yes

-
GPS

Yes, with A-GPS

Yes, with A-GPS
GLONASS

Yes

Yes

Features
Sensors

Accelerometer, always-on altimeter, barometer, compass, gyroscope, heart rate

Accelerometer, compass, fingerprint, gyroscope, light, proximity

Main camera
Camera type

-

Dual
Main camera

16 MP, f/1.7 , 1/2.8" , 1.12 µm
8 MP
Primary camera resolution

-

4672 x 3504 pixels
Primary camera video

-

1080p@30fps
Primary camera flash

-

dual-LED flash
Primary camera phase detection autofocus

-

phase detection autofocus
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