With the popularity of inexpensive Android phones that have built in wifi hotspot capabilities, there is not much of a need or demand for a hotspot rental, thus there is no supply.

If you want to use it on a regular basis - check out the Digicel Jamaica and Time For Lime websites for what phones they have available. There are phones around us$100, and internet time can be bought for as little as 50 cents a day depending on how much data usage you need. No contracts required, just a pay as you go system. If you are here for 10 days or more, the cost is less than renting... if not, it will be slightly more than $10 a day - more in the $13 to $15 - and now you own a new phone as well.