Most secure smartphones ,is it Blackberry number 1 ?

BlackBerry DTEK50

Canadian smartphone maker BlackBerry calls it's recently launched DTEK50 as the world's most secure Android smartphone.
The DTEK50 comes with features such as periodic application tracking, which automatically monitors the OS and apps.The smartphone comes with 5.2-inch Full HD scratch-resistant display of 1080x1920 pixel resolution. It packs an octa-core Qualcomm Snapdragon 617 processor and sports a 13MP autofocu

Boeing Black

Boeing Black is the result of a collaboration between aerospace and defence giant Boeing and smartphone maker BlackBerry.
Capable of encrypting calls, this Android - based smartphone is aimed at government agencies and other types of businesses where data security is crucial. As for specifications,Boeing Black comes with a 5.2- inch display,a dual-core 1.2GHz ARM Cortex-A9 processor and a 1,590mAh battery.

Turing Phone

Made out of Liquidmorphium,an amorphous alloy of zirconium,copper,aluminium,nickel and silver,the Turing Phone is unbreakable according to its manufacturer.It runs Android 5.1 Lollipop with Turing’s own security-focused UI on top for end-to-end encryption.In terms of the specifications,theTuring Phone sports a 5.5- inch display and is powered by a 2.5GHz Krait processor. A 3,000mAh battery is also included in the spec sheet.

Blackphone 2

Launched by Silent Circle, the highlight of the Blackphone 2 is the company's Silent OS. Even though Silent is based on Android, it comes with enhanced features to address mobile privacy concerns.
The company claims to have the world’s fastest vulnerability management, which raises critical vulnerabilities within 72 hours of their detection or reporting.Major specifications of the Blackphone 2 include a 5.5-inch Full HD display with Gorilla Glass protection. It’s powered by an octa-core Qualcomm Snapdragon processor and has a 13 MP BSI sensor camera.

Made by Israeli startup Sirin Labs, Solarin is arguably the world's most expensive smartphone.
The smartphone offers 256-bit AES encryption,almost similar to what the defence forces use to secure their communication.
Solarin can be activated via a physical security switch located at its back.In terms of specifications,the smartphone comes with a 5.5 inch IPS LCD display of 1440x2560 pixel resolution.Powered by a Qualcomm Snapdragon 810 processor, it has a 23.8MP rear camera.