I currently have a sportster original wi a full replacement warranty. im thinking about returning it or a new one. but

I was thinkin about getting a stiletto. they all look similar. the st2 looks like it may have more features but for the extra money doesnt seem worth it compared to the st 10 and 100.

can someone let me know the main differences in them. also how do they work indoors in an office building and home.

thanks are they worth it.?