Can you return iphones after activation?

We bought 3 iphones yesterday. 1 iphone 5 and 2 iphone 4. We bought them at walmart and we're leaning on not keeping the contract. So i was wondering if you could return the phones once you've activated them.

Yes. It depends in Walmart's return policy. I know that Beat Buy can because I was able to return my iPhone back and I was also able to get back my contract, although you will still have to pay for the activation fee.