Under the bonnet, the Blackberry Passport has a quad-core 2.2GHz Qualcomm Snapdragon 801 processor and 3GB of RAM.
While the handset failed to impress us in other areas, its performance was one of its best features. The Passport is undoubtedly the nippiest Blackberry phone we've used to date, and we have yet thus far to experience any signs of lagging or stuttering.
The Blackberry Passport arrives running a new version of Blackberry OS, version 10.3. This doesn't offer any drastic changes compared to previous releases, but it does provide the smartphone with a handful of new features.
Perhaps most interestingly, Blackberry 10.3 gives the Passport access to the Amazon App Store, which offers a much better selection of apps than the firm's own Blackberry World offering. Of course, Amazon's storefront is limited compared to the Google Play store, and users are unable to download Google apps.
Another notable addition is Blackberry Blend. While we've been unable to test it, we have seen a demonstration of the service in action. Essentially, it allows Passport owners to include data - messages, BBM, SMS, Calendar, Contacts - from any desktop PC or tablet that has the Blend app installed. This feature, Blackberry claims, also allows business users to access work related content securely from a non-work PC, but we have yet to see this in action.
Blackberry is clearly going after iPhone users with the Passport too, as it is the first device to come with Blackberry Assistant. During our time with the phone, this worked accurately - and we liked the included text-based input for those times when it's not appropriate to bark at your phone - although we found it much slower than Apple's and Google's alternative services.
Beyond these new additions, Blackberry 10 remains largely unchanged. You'll find Blackberry Hub a mere swipe away, where you'll be able to see all of your notifications in one place. While we have long found this feature a little busy and overbearing, it is no doubt a plus point for power business users.
With its business-class email and security features, it's easy to see how professionals could be easily swayed by Blackberry 10, but there aren't many features that will appeal beyond this market.
Next: Camera, battery and storage.