How ironic and serendipitous that I
accidentally "clicked" on this thread when attempting to zoom in via a double-tap!
This particular matter was actually the very first thing that I learned about my device after taking it out of the box. I was fiddling around with it, attempted to connect to my home wifi network, and was pleasantly surprised to find that it worked, which is just plain awesome. (On a sidenote another thing I didn't expect was that it also came with it's
own sim as part of the package, but, is that just standard with Go Phone purchases?) I could even effectively use the device as a GPS navigation unit by accessing the pre-installed Google Maps app without installing the sim, at least at first - last time I attempted doing so it wouldn't load, but I can't be for sure whether it was due to the fact that I had since put the card in and begin also using it as an actual phone, or because I wasn't in a hotspot atm, or simply as a result of an update to the app, or some combination of these.
Funnily enough, it was indeed my decision to finally insert the sim card that gave me some issues. I activated the card that came with it (for "free" since I guess the activation charge is part of the price) but what I wanted to do was then switch that card into my old Samsung Impression and its old card into this one... but apparently this is confusing to newfangled technology - which is the actual funny part because I had to go to an AT&T store and transfer my info into a new card for this smartphone, but the card that came with it seemed fine with the switch to a relatively dumber phone (actually, I couldn't get service even though I was sure I activated it correctly, but that's a backburner issue for now). Another issue, and probably the more pertinent one for the OP if you do ever decide to put the sim in, is to go into your Wireless & networks settings, under Mobile networks, and
make sure that you have Data disabled by unchecking the box that is checked by default because it WILL just sit there overnight and charge you a couple cents at a time for no apparent reason at all (I was told it had something to do with automatic updates, or something, but I'm not entirely sure if that was actually the case), at least until you're out of money.

Good thing I had "only" put $15.00 on it that day.