Save up to $300 when you buy the iPhone X and trade in your old iPhone at T-Mobile

T-Mobile revealed last month its $300 off iPhone launch promotion, but if you missed it, here are a couple of details that will help you choose the best deal on the upcoming iPhone X.

First off, you'll be able to pre-order the iPhone X from T-Mobile beginning 12:01 a.m. PT Friday, October 27th online and at participating stores the following morning. Keep in mind that the iPhone X will be available in stores starting on November 3, but there won't be too many units available.

The iPhone X will be available for purchase at T-Mobile for $279.99 down and $30 ...