Sony Xperia M4 Aqua and Xperia Z4 tablet to be unveiled at at MWC 2015

Sony is expected to launch two devices at MWC 2015 that include  Xperia M4 Aqua smartphone and  Xperia Z4 tablet.

The Xperia M4 Aqua will be the successor to Xperia M2 Aqua which was launched last year. The Xperia M4 Aqua is water and dust-proof with IP65/68 rating.

Xperia M4 Aqua will run Android 5.0 Lollipop. Other specs are a mystery at this point but the handset is expected to feature 5-inch HD display, Qualcomm Snapdragon 410 quad-core processor, 1GB RAM and 2300 mAh battery.

The Xperia Z4 tablet was accidentally confirmed when it made an appearence on the official Xperia Lounge application.

The screenshot of the Xperia Z4 tablet partially reveals the design and the its announcement date, March 3. The tablet will feature a "ultra fast processor," 2K display and "industry leading battery performance.

Unfortunately we won't be seeing the Xperia Z4 smartphone unveiled at Mobile World Congress. According to reports,the uninsipiring sale of Sony's first two flagship have forced the Japanese electronic giant to revised its strategy in 2015. Sony plans to launch the Xperia Z4 smartphone sometime in the summer.