Apple has announced a new iPhone trade in promotions as part of the Holiday 2018 season. For a limited period of time, Apple will include an additional $ 25- $ 100 of credit when purchasing a new iPhone Xr or iPhone Xs when shopping in a qualified iPhone. The additional credit will be used either as a gift card from the Apple Store or a refund on purchase.
Qualified incoming phones include iPhone 6 and 6 Plus and reach up to iPhone 8. The actual deal in credit will be determined by the condition of your phone, with lower amount on the iPhone in bad condition. 1
Full Print: "Delivery values will vary based on state, year, and configuration of your submission device. You must be at least 18 years old to trade for credit or an Apple Store gift card. Not all devices is eligible for credit. More details are available from Apple's Mac Trading Partner and Apple's iPhone, iPad, and Apple Watch Submission Partner for submission and recycling of eligible devices. Limitations and Restrictions may apply. The payment is based on the received device that corresponds to the description you provided. Apple provided the right to refuse or limit the amount of any device for any reason. In the Apple Store: The offer is only available when presenting a valid publicly issued image ID (local law may require storage of this information.) The value of your current device may be used to purchase a new Apple device. Not available in all stores. Some stores may have additional requirements. "
For more information, see Apple iPhone's pages.