BuySpry via Walmart offers the refurbished Unlocked Apple iPhone 6 64GB GSM Smartphone in Space Gray for $145.29 with free shipping. That's $3 under last month's mention and the best deal we've seen. (It's $45 under the lowest price we could find for a refurb today.) Note: A 90-day warranty applies, although it's unclear who backs it.
Reviewing this critical insurance policy takes a little effort, but it pays off big.