Walmart offers the refurbished Apple iPhone 6 Plus 16GB Smartphone for Sprint (no contract) in Gold, model no. MGCX2LL/A, Silver, model no. MGCW2LL/A, or Space Gray, model no. MGCV2LL/A, for $429 with free shipping. That's $220 less than you'd pay for a new one and the lowest total price we've seen for this phone from Sprint.

Note: A 90-day warranty applies, but it's unclear who covers it.