Do all iPad mini models have SIM slots? I currently have an iPad mini 2 WiFi/Verizon. It is a 16GB model.

I want to upgrade to a 128GB model and use my existing SIM card. Do I have to buy a Verizon model, or can I buy a so-called "WiFi-only" model and use my SIM?

Thanks all.
WiFi-only Apple devices do not contain a SIM card tray, unfortunately.