Software
iOS
36%
9
Android
32%
8
None
28%
7
Windows Phone
4%
1
Compatibility
11+
19%
3
4-10
25%
4
1-3
44%
7
0
13%
2
Reviews
75%
9
25%
3
Price
<$49
50%
6
$50-99
50%
6
Connectivity
Power Supply
Cloud / Server
Stand-alone
Color