Need to buy 3g or 4g module

My phone’s network capabilities depend on the chip(?) made by simcom. I currently have one that allows for 2g (2nd generation) network connections. I need to get one that allows for 3g or 4g. This piece is made by simcom. Adafruit sells one that is already connected to a board. It is more expensive. I should look into learning more about this part and maybe making my own PCB to lower the cost on this piece.


Here is the option I purchased today:

I will need to follow this tutorial once it arrives:

Here is the more expensive adafruit version:

Here is a cheaper option:

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