Swapping SIM cards between cell phones

[AlphaDog]

My son sent me a link to a phone he's bidding on, and the detailed specs for it say the SIM card for that particular one will hold 250 contacts, each one containing space for five phone numbers, an e-mail address, a Web address, a street address, job title and company, birthday, and notes. I was looking for something that gave its size in MBs or GBs, but I couldn't find that. The phone itself holds 500 contacts. Or so it says in the fine print.

I'm not sure they're all the same, because at least this one appears to be pre-formatted.

Personally, I don't know 250 people. Well, maybe I do, but not 250 that I'd put in my Contact list on a phone. I'm more the five contact type. OK, six, maybe.