Ark Benefit M551 (SuperD) vs Microsoft Surface Duo

Ark Benefit M551 (SuperD)

Microsoft Surface Duo

Network
2G network

GSM 850, 900, 1800, 1900

GSM 850, 900, 1800, 1900
3G network

HSDPA 900, 2100

HSDPA 850, 900, 1900, 2100
4G network

LTE frequency band 3(1800), 7(2600), 18(800)

LTE frequency band 1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 19 20, 25, 26, 28, 29, 30, 38, 39, 40, 41, 46, 66
HSDPA speed

-

42.2 Mbps
HSUPA speed

-

5.76 Mbps
LTE speed

LTE Cat4, 150.8 Mbps download, 51 Mbps upload

LTE-A (CA) Cat18, 1200 Mbps download, 100 Mbps upload
GPRS

Yes

Yes
EDGE

Yes

Yes

Design
Build

Metal, plastic

Glass front (Gorilla Glass 5), glass back (Gorilla Glass 5)
SIM

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

Nano-SIM, eSIM
Height

152 mm

145.2 mm
Width

75.7 mm

93.3 mm
Thickness

8.9 mm

9.9 mm
Height unfolded

-

186.9 mm
Width unfolded

-

145.2 mm
Thickness unfolded

-

4.8 mm
Weight

172 g

250 g
Stylus

-

Yes
Colors

Black, Gold

White

Main camera
Camera type

Single

Single
Main camera

13 MP

11 MP, f/2.0 , 23 mm, 1.0 µm
Primary camera resolution

4160 x 3120 pixels

-
Primary camera video

1080p@30fps

4K@30/60fps, 1080p@30/60fps, gyro-EIS
Primary camera flash

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

-

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

Yes
WLAN WiFi Direct

-

Yes
WLAN WiFi Dual Band

-

Yes
USB

microUSB 2.0

Type-C reversible connector
Bluetooth

v4.0

v5.0
Bluetooth A2DP

Yes

Yes
bluetooth LE

-

Yes
Bluetooth AptX

-

aptX Adaptive
GPS

Yes, with A-GPS

Yes, with A-GPS