Plongdin,
Not being techies, this is can be a bit complicated. It depends on where you are staying. There is 4G access from Digicel, but that has limited coverage areas. The Claro option is now unavailable, only pre-existing Claro clients have access to the old 3G network. They are not accepting new subscribers at this point.
If you can say where you are staying, I would be able to provide you more detailed information. There may be a decent existing wifi at the hotel.
Here is the link to the Digicel direct information in case you would like to check out some basic prices:
http://www.digicel4gbroadband.com/en/modems
