What are some alternatives?
When comparing iPhone 7 and Puzzlephone, you can also consider the following products
Google Pixel - Ask more of your phone.
YotaPhone - Electronics and iOS
Google Pixel 3 - The latest phone from Google
BlackPhone - Silent Circle is a secure communications firm offering enterprise communications solutions including software, devices, and services.
LG V30 - Phones, Electronics, iOS, Smartphones, Mobile Phone, Cell phone, Handheld, Photography, Cameras, and Gaming
GeeksPhone - Electronics and iOS