The Xperia X model, meanwhile, features a 5-inch, 1080p display, a Qualcomm Snapdragon 650 CPU and expandable SD storage. That device packs Sony's 1/2.3-inch, 23-megapixel Exmor sensor and also uses the Prediction Hybrid Autofocus developed by Sony's camera division to automatically track subjects and keep them in focus. Sony also says you can take selfies in low light thanks to the 13-megapixel front camera sensor. There's no word on the all-important pricing for the smartphones, but we imagine the devices will come at a premium over what their specs might suggest. We'll have more information on both the Xperia X and XA once we get our hands on them.

Although the X and XA both make compromises to (we hope) bring down the price, the X Performance is much more competitive. It's got all the goods of the X, but adds a Snapdragon 820 processor, 3GB of RAM, and waterproofing. It looks like this is the closest we'll get to a flagship from Sony at MWC, even if its 5-inch, 1080p display is lacking when compared to Samsung and LG's latest.

To go with the new phones, Sony has also launched the first device in its lineup of "smart products." The Xperia Ear is what Sony calls "a next-generation wireless earpiece" that does more than let you take a call. It can respond to verbal commands and let you search the internet, dictate messages or navigate using your smartphone. It will also provide information about your schedule, the weather and the latest news. To make sure it can do all that, Sony built it from soft silicone and gave it an all-day battery life. It connects to your phone via Bluetooth and NFC.

Update: This article was updated after publishing to add details of Sony's Xperia X Performance.