Why the price increase over Pinebook Pro?

[beta-user]

Why is PinePhone Pro almost twice as expensive as Pinebook Pro? They both have very similar hardware, so I don't understand this big price difference. Pinebook Pro actually has a much larger screen and battery, so it would make sense for the laptop to be a more expensive device. We can see a similar thing when we compare the price of regular PinePhone and regular Pinebook.

Current prices:
Pinebook Pro - $219.99
PinePhone Pro - $399.00

Pinebook - $99.99
PinePhone - $149.99