We've written a fair amount about the Sony Xperia XA3 and XA3 Plus that we're expecting to debut at Mobile World Congress, but now it appears the phones will actually launch as the Xperia 10 series. 

So that's the 5.9-inch Xperia 10 and 6.5-inch Xperia 10 Plus. 

It's unclear if these have been the names all along. Maybe we just got the wrong end of the stick with XA3 because the new phones will be the follow-up to last year's XA2. That could be at least partly to blame for the proliferation of information pointing to the XA3 moniker.

The move to "10" could be as simple as bringing Sony Mobile's naming convention more in line with Apple's iPhone X and XS (10) and Samsung's upcoming Galaxy S10 and Galaxy Note 10. It would certainly be a departure from Sony Mobile's "Z-focused" smartphone naming conventions of the last few years. 

The new names were leaked by WinFuture's Roland Quandt who also confirmed "via a trusted source" that the new handsets would be running on the Qualcomm Snapdragon 630 platform with 64GB of on-board expandable storage, a headphone jack and a 13-megapixel sensor for the main camera. There will also be a 2,870mAh battery on board which isn't huge. The same report suggests a Euro price of €349 for the Xperia 10 and €429 for the Xperia 10 Plius.

We'll know more after Sony's press conference early on 25 February when it's also expected to announce the flagship Xperia XZ4 which we also believe will be a 6.5-inch handset.