The Samsung Galaxy S4 is finally here, and having already compared the device against the HTC One and iPhone 5, we're back with another face-off. This time, the new handset will be pitting its wits against two devices which have been presented with the mammoth task of rejuvenating the fortunes of two once-mighty brands in the mobile industry. Both Nokia and BlackBerry have enjoyed vast successes over the past decade, but as both have struggled in the wake of iOS and Android, the Nokia Lumia 920 on Windows Phone 8, and the BlackBerry Z10 on the BB10 OS, have some real ground to make up if they are to compete with the Galaxy S4. Here, we compare them with yet another like-for-like table of the vital specifications.
