If you've ever wanted to buy an iPhone straight from Apple but thought that brand new unlocked models were out of your reach, you're in luck. Apple has started selling refurbished iPhones in its US online store, with hefty discounts depending on what you want to buy. An unlocked 16GB iPhone 6s is selling for $449, or $80 off the usual price; splurge on a 64GB iPhone 6s Plus and you'll shell out $589, or $110 less than usual. The iPhone SE and iPhone 7 are absent, but that's not surprising given that owners have only had them for several months at best.
This won't be as big a bargain as you'd get by purchasing an iPhone through a used goods site, an auction or a friend. However, you'll get both a year-long warranty and the knowledge that there won't be any rude surprises when you open the box. In short: if the thought of shopping on eBay or Swappa makes you nervous, this is your best bet.