An invitation to the French launch of a new Sony Mobile device has given us a better idea of what the company's rumoured phablet, the Sony Xperia Z Ultra, might look like.

The side-shot of the new device on the invitation seems to mirror Sony Mobile's current design language. The central power/standby button, as well as the volume rocker beneath it, reflect the Xperia Z and Xperia Tablet Z devices already available.

READ: Sony Xperia Z review

Rumours of a larger Sony Xperia device have been circulating for some time. Going under the name of Sony Xperia ZU, or Z Ultra, it is reported to offer a 6.4-inch 1080p display, and run on the new Qualcomm Snapdragon 800 processor.

Although this invitation is for an event on 4 July, we strongly believe that we'll see its announcement on 25 June.

The invitation wording also hints at the type of device this is going to be, saying there's a "big surprise" and that you should remember to put a "note" in your agenda, the latter part handwritten by a pen.

This tallies with Sony's phablet being a competitor for the likes of the Samsung Galaxy Note range, a market that's attracting plenty of attention. Launching into this space recently we've seen Acer with the Liquid S1 and there are rumours of the HTC One Max, a larger Sense-packing phablet.

We'll be watching Sony, so stay tuned for the big announcement when it happens. - PAY MONTHLY PHONES The Samsung Galaxy S10+ is now available on EE who have been awarded the UK’s best network for the fifth year running. RootMetrics tested the four UK networks and EE was faster and more reliable than all of them, with better data performance. Their network has come a long way since they launched in 2012. Back then they had 11 UK cities covered by 4G. Today they cover most of the UK’s land mass, thanks to 19,000 state-of-the-art 4G sites. They’ve got faster, too – from 50Mbps to a maximum speed of 400Mbps. And they’re soon to experience even greater possibilities with the launch of 5G.