Sony has unveiled its new Xperia Z4 flagship smartphone

With the likes of HTC and Samsung having already made their flagship entries into the smartphone market in 2015, now it’s the turn of Sony.

The firm’s latest top-of-the-line Xperia is the Z4, and Sony are very much sticking to what they know from a design perspective with the new device. There’s a 5.2-inch 1080p LCD screen and a body dominated by metal and glass, just like the current generation Z3. There’s also a 20.7 megapixel camera and a 64-bit Snapdragon processor, running Android 5.0 Lollipop.

These are all the sort of specs that we would expect from a premium smartphone in 2015 – the Samsung Galaxy S6 (and S6 edge), as well as the HTC One have both launched in the last month or so with similar numbers on the fact sheet.

Where the Z4 might try to claim some of the high ground is that it is both water and dust resistant – a feature Samsung ditched in the S6 to free up design aspects.

The Sony announcement was also notable as there was no mention of international release dates for the Z4, only confirmation it was coming to Japan this summer. There was also no word if there will be a smaller, Compact edition such as there is for the Z3. Though it will come in gold.

While there is still plenty of time for all these details to be confirmed, in the smartphone arena time is not something Sony are blessed with an abundance of. The firm is struggling to keep its mobile business ticking compared to the likes of Apple, Samsung, HTC and LG – with some painful losses in their mobile division reported in 2014. Now a resurgent Microsoft could power past them too as the new Lumia 640 looks a compelling product.

The Verge’s Sam Byford suggested earlier this year that Sony should consider ditching everything else and just focus on the PlayStation, and even the firm’s CEO has not ruled out ditching TVs and mobiles in the future the same way it has moved out of the Windows PC market.

The Z4 smartphone, along with the Z4 tablet that was announced at Mobile World Congress last month, is Sony’s latest attempt at grabbing customers’ attention – given that for now it appears there is little that is striking or new in the Z4, that hope might be unfulfilled.