Pretty sure this is a Store exclusivity. I would think unlocked versions will be sold as well. However Carrier store exclusives usually have "perks" or discounts, that you wont get when buying the phone unlocked or elsewhere.
Sprint isn't the best choice for a new line of devices, kinda middle ground. I don't know the dealings so, maybe it was the best option to get into the market with a carrier?
If it is complete carrier exclusivity, well Essential just...essentially buried their phone in the US
Why though​. Exclusives suck and also sprint has horrible service. They won't sell as well if it's not available to everyone.
AnonD-666487, 12 Jun 2017the manufacturer must know that carrier exclusivity ruin a productPhones that only work on one carrier are stupid. Phones that work on all networks but are only available in one carrier's store are another deal.
I think this phone is the latter. We will have to wait and see if it will do T-Mobile VoLTE.
AnonD-666487, 12 Jun 2017the manufacturer must know that carrier exclusivity ruin a productMaybe the other carriers didn't want to sell their phone
the manufacturer must know that carrier exclusivity ruin a product