When comparing Librem 5 vs Blackphone 2, the Slant community recommends Blackphone 2 for most people. In the question“What are the best smartphones for security?” Blackphone 2 is ranked 1st while Librem 5 is ranked 5th. The most important reason people chose Blackphone 2 is:
Blackphone is bundled with privacy services for anonymizing and encrypting communications.
Specs
Ranked in these QuestionsQuestion Ranking
Pros
Pro Multiple graphical environments will be supported (KDE, GNOME...)
Pro Purism designs their own motherboards
They are an SPC now. the goal is open source hardware and software including the BIOS (coreboot). The screen is 5.7 inches now, not 5 inches.
Pro Anonymized and encrypted communication
Blackphone is bundled with privacy services for anonymizing and encrypting communications.
Pro Runs a custom privacy focused build of Android
Blackphone has developed a fork of Android called PrivatOS with a focus on security and privacy. It closes all build in backdoors, and adds additional privacy features like anonymous search, privacy-enabled bundled apps, and better app permission control.
Cons
Con Expensive
As you compare the specs with other smartphones.
Con Not available
Shipping starts in April 2019.
Con Hardware is not open as advertised
The freescale i.MX is a proprietary microcontroller so no open hardware here.
Con Price
562.80 EU or 722.82 USD is the running cost for the device.
Con OS is not open source
Blackphone has announced plans to make their PrivatOS fork of Android open source in the future, but until then, 3rd parties cannot audit the OS to confirm their security claims.