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It's hard not to turn any discussion of one of BlackBerry's handsets into a verdict on the company, but right now every handset is now vital for it.
From a cost point of view, at £320 SIM-free in the UK or £21 per month on contract, the Q5 is cheaper than a Samsung Galaxy S4 or the iPhone 4S or 5 (but more than the iPhone 4). But it's not that much cheaper than the Q10 (£29 per month or £479 for the handset alone).
You might think that the rising flood of bring your own device has made business-first handsets an endangered species by eradicating their traditional habitat.
But there is a chunk of the enterprise market looking to buy a fleet of no-nonsense, sturdy handsets that are to manage and secure, and which fits in with their existing infrastructure.
As such, the Q5 may find a home with these organisations where workers require fast and accurate data input (perhaps an engineer filling in a form) rather than a desperate need for big-screen funny cat videos.
The Q5 isn't likely to wow anyone, but that's perhaps not the point. The Z10 is BlackBerry's wow-touchscreen handset, and the Q10 it's wow-Qwerty counterpart.
But the Q5 could be more important than either as it's just the sort of workhorse that BlackBerry needs its enterprise customers to deploy in major quantities, especially those filled with nostalgia for the days when Qwerty ruled. It's perhaps not the most exciting niche to fill in the tech world, but it could be vital one for BlackBerry.