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Historically, iPads have not had true GPS. The GPS they have goes through a cell phone network, called Assisted GPS. Now I hear that iPads are coming with true GPS. How do I know if a particular iPad has true GPS?

We've ordered Part number MH312LL/A with Verizon iPad non-SIM Card (HH702LL/A)

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I think you have misunderstood what "assisted GPS" means. The "assisted" part means that the device first uses it's cellphone signal (or wifi) to make a rough estimate as to where it is. It uses this information to reduce the time it takes to get a fix with the regular GPS signal - i.e., the cellphone/wifi assists the GPS. Without this assistance it can take much longer to get a lock.

Both types of iPad can use location-based services, but only the device with a SIM card has an actual GPS module. The wifi-only device can take a guess at where it is, based on the wifi SSIDs it can see - Apple knows where these are, from other users devices that also had a GPS and reported it previously - or by using a database similar to http://www.hostip.info/

http://gps.about.com/od/accessories/a/New-Ipad-Gps.htm

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GPS is available on iPhone and iPad Wi-Fi + Cellular models

This is a footnote for Global Positioning System (GPS) networks on the Apple Support pages for Location Services...

This page for a Marine Navigation product makes consistent statements, including some clarification of the difference between 'Assisted GPS' and 'True GPS':

And there is some interesting discussion on iFixit:

  • This particular iPad has iOS 8. Looking at the iOS 8 documentation you pointed I see nothing that says the the iPad has true GPS. I'm looking for something saying GPS Chipset or the like. It says that GPS comes an iPads with cellular + wifi, but not with just wifi, which is suspicious. The ifixit forum does say that it is true GPS. – Al Lelopath Mar 23 '15 at 16:36

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