Motorola's Moto G7 Power is free at Metro by T-Mobile (new line or port in required)3
Now, Metro offers an even more generous deal to new customers - the Moto G7 Power costs $0 when you switch and opt for a plan of at least $50 per month (unlimited data and calls are included in this price). Existing customers can get the G7 Power for free, too, but it looks like this is valid only if they add a new line before June 17 - that's tomorrow. There are no long-term contracts involved here, as Metro only offers prepaid (pay as you go) services.
Besides the Moto G7 Power, Metro by T-Mobile is offering a handful of other smartphones for free (to new customers only), including the Moto E5 Plus, LG Stylo 4, and Samsung Galaxy J7 Star. However, at this time, the G7 Power represents the newest and most attractive option.