Can I use an unlocked iphone 4s without having the internet data plan?

I want to buy an unlocked iphone 4s, but i don't have the data plan because my dad doesn't want to pay for it. If i get the unlocked iphone will I be able to use it?

No, you need a data plan for any smartphone.
your carrier will automatically add one to your bill.

The reason why phone companies have that mandatory data plan purchase when you buy a phone like the iPhone, is because since it's a smartphone it is constantly sending and receiving data -- even without you doing anything on it.

Similarly, most of the features of an iPhone requires data and/or an internet connection, so even if there was any possible LEGAL way to get ahold of an iPhone and turn on service without purchasing a data plan, you'd end up with a useless phone that doesn't do anything much but call people -- and what's the point of an iPhone if it does the same thing as all other phones?

Yes you will be able to use it. But for Internet you will have to buy the data plan from a provider (any) or use Wi-Fi. But buying an. Unlocked phone costs a lot. For the 4S it costs 649 just for the 16 gb.

The unlocked means you pay off the phone and you use any wireless provider you wish. But it does not come with a plan, you will have to buy a plan for that phone as well

No you need a data plan.