Apple Watch Series 2 42mm vs Xiaomi Black Shark Helo

Apple Watch Series 2 42mm

Xiaomi Black Shark Helo

Network
2G network

N/A

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

-

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

-

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)
EV-DO speed

-

3.1 Mbps download, 1.8 Mbps upload
LTE speed

-

LTE, Cat18, 1.2 Gbps download, 221 Mbps upload
GPRS

No

Yes
EDGE

No

Yes

Design
Build

Stainless Steel/Ceramic back

Aluminium alloy
SIM

No

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

42.5 mm

160 mm
Width

36.4 mm

75.2 mm
Thickness

11.4 mm

8.7 mm
Weight

52.4 g

190 g
Waterproof

50m

-
Colors

Sport band: silver case/white, black case/black; Leather band: silver case/blue, brown, orange; Stainless Steel band: silver case/silver, black case/black

Black

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
Wi-Fi display

-

Yes
WLAN WiFi Dual Band

-

Yes
USB

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

-

Yes
Bluetooth

v4.0

v5.0
Bluetooth A2DP

Yes

Yes
bluetooth LE

-

Yes
NFC

Yes

-
GPS

Yes

Yes, with A-GPS
GLONASS

-

Yes
Beidou

-

Yes

Features
Messaging SMS

SMS(threaded view)

-
Messaging Email

Email

-
Messaging IM

IM

-
Messaging Push Mail

Push Mail

-
Java

No

-
Sensors

Accelerometer, gyro, heart rate

Accelerometer, compass, gyroscope, fingerprint, light, proximity

Main camera
Camera type

-

Dual
Main camera

12 MP, f/1.8 , 1.25 µm
20 MP, f/1.8 , 1.0 µm
Primary camera resolution

-

4000 x 3000 pixels
Primary camera video

-

2160p@30fps, 1080p@30fps, 720p@120fps
Primary camera flash

-

dual-LED flash
Primary camera phase detection autofocus

-

dual pixel phase detection autofocus
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, RAW