Routers you can put your SIM card in?

I'm using a phone hotspot as a router to link to my wifi cameras.

But I think an actual router may give better coverage and connection?

Is it possible to get a router than I can just put my mobile SIM card into and it will use the SIM data, instead of having to subscribe and get a router specific to one provider?

And what would I be looking at, cost wise?

Any budget friendly place to pick one up?

Yes, you can easily pick one up on Amazon. Here is just one example of many. Or you could pick one up second hand easily on eBay.

https://amzn.eu/d/42Kt1sI

Three have a prepay phone plan which gives you unlimited usage. My parents used that plan for years without any trouble.

Spocker

+1 on buying a second hand one - heres one for €28 on CEX

Wonder does aliexpress stock them?

Anyone buy one from there? (cost saving measure).

WHL

I have been using this one since July 2020 without issues. https://www.amazon.co.uk/Unlocked-Networks-Genuine-Warranty-B311-221/dp/B08B1VFHKB/ref=sr_1_3?crid=1BK3QQ45Q0W7F&keywords=HUAWEI+b311&qid=1705915096&s=computers&sprefix=huawei+b311%2Ccomputers%2C367&sr=1-3