Can you connect to a Wi-Fi on an iphone with no plan?

Basically I a computer business. They do have iphone simulators out there, but I'd really like an old iphone not to use to call, text, etc, but just to see how sites we make look online on an actual physical iphone.

Is there a way to buy a used one and simply connect it to my wife to get online?

Yes you can basically use it as an iPod touch.

They should have no worries connecting to Wi-Fi even without a plan; wi-fi is generally independent of the phone network so anything that can be transmitted via Wi-Fi should work fine. Obviously calls and so forth won't work.

You may be able to get an old handset off ebay.

Yes you can use

Yeah you can buy an old iPhone. But they can still be kinda expensive. And you want to be sure to get one of the newer screens so that you have retina display to see what other people really see and not just one of the older phone screens.

Hope this helped!

Yes, you can use iPhones without plans on Wi-Fi.