ipad with or without cellular
I'm looking into getting an ipad and I noticed there's a difference between an ipad with wifi and one with wifi and cellular. From what I've looked at already it looks like if there's no wifi network it wont work but if you get one with cellular then you can use the cellular data like a phone but my question is if I already have a phone with a hotspot would I be able to connect the ipad to that if it just has wifi or would I have to get the one with the cellular anyway? If so would I have to pay for that separately or would I be able to go in and easily connect the ipad to my regular phone plan?
iPad Pro 10.5-inch, Wi-Fi, Cellular