With activation on an Inner Circle Unlimited plan, Virgin Mobile offers the used Apple iPhone 7 Plus 32GB Smartphone for Virgin Mobile in Silver or Gold for $299.99 with free shipping. That's $370 less than buying new and the lowest price we've seen for this phone on any carrier without requiring a trade in. Note: An Inner Circle Unlimited plan costs $50 per month, although if you transfer a number, you'll only pay $1/month for the first six months.