Ark S503 (New) vs Xiaomi Mi 6

Ark S503 (New)

Xiaomi Mi 6

Network
2G network

GSM 850, 900, 1800, 1900

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

HSDPA 900, 2100

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

-

LTE frequency band 1(2100), 3(1800), 5(850), 7(2600), 8(900), 38(2600), 39(1900), 40(2300), 41(2500)
HSDPA speed

-

42.2 Mbps
HSUPA speed

-

5.76 Mbps
LTE-A speed

-

LTE-A
GPRS

Yes

Yes
EDGE

Yes

Yes

Design
Build

Plastic

-
SIM

Dual SIM (Micro-SIM, dual SIM stand-by)

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

152 mm

145.2 mm
Width

73 mm

70.5 mm
Thickness

7.8 mm

7.5 mm
Weight

157 g

168 / 182 g
Colors

Black

Black, Blue, Ceramic Black, White

Main camera
Camera type

Single

Dual
Main camera

5 MP

12 MP, f/1.8 , 27 mm
12 MP, f/2.6 , 52 mm
Primary camera resolution

2592 x 1944 pixels

-
Primary camera video

720p@30fps

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

-

phase detection autofocus
Primary camera flash

dual LED flash

dual-LED (dual tone) flash
Primary camera optical image stabilization

-

4-axis optical image stabilization
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

1.25 µm @ 27mm & 1.0 µm @ 52mm pixel size, 1/2.9" sensor size, HDR, face detection, geo-tagging, panorama, touch focus

Connectivity
WLAN

Wi-Fi 802.11b, 802.11g, 802.11n

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

Yes

Yes
WLAN WiFi Direct

-

Yes
WLAN WiFi Dual Band

-

Yes
WLAN DLNA

-

Yes
USB

microUSB 2.0

Type-C reversible connector
Bluetooth

v4.0

v5.0
Bluetooth A2DP

Yes

Yes
bluetooth LE

-

Yes
NFC

-

Yes
GPS

Yes, with A-GPS

Yes, with A-GPS
GLONASS

-

Yes
BDS

-

Yes

Features
Messaging SMS

-

SMS(threaded view)
Messaging MMS

-

MMS
Messaging Email

-

Email
Messaging IM

-

IM
Messaging Push Mail

-

Push Mail
Java

-

No
Sensors

Accelerometer, proximity, light

Fingerprint (front-mounted), accelerometer, barometer, compass, gyro, proximity