Just announced:
Not So Fast T-Mobile! Sprint Beats Your Price with World’s Best Offer on iPhone 6s: $1/Month
http://newsroom.sprint.com/news-releases/not-so-fast-t-mobile-sprint-beats-your-price-with-worlds-best-offer-on-iphone-6s-1month.htm
Nice deal!
For a limited time, beginning Friday morning in Sprint branded retail stores, Sprint will offer the iPhone 6s 16GB for $1/month and the iPhone 6s Plus for $5/month with the trade-in of an iPhone 6.
Higher memory configurations of the iPhone 6s are also value-priced at $5.77/month for the 64GB and $10.53 for the 128GB with the trade in of an iPhone 6. For the 6s Plus, higher memory configurations cost $9.77/month for the 64GB and $14.53 for the 128GB with an iPhone 6 trade–in.
Sprint will also offer a $10/month price on iPhone 6s 16GB or $14/month on iPhone 6s Plus 16GB with the trade-in of an iPhone 5s.
Through Dec. 31, 2015, customers on any other carrier who switch to Sprint or existing Sprint customers who are upgrade-eligible and turn in any other smartphone will get a promotional rate of $15 per month on iPhone 6s 16GB, regularly $22/ month without a trade-in.