The purported Sony Xperia ZR just leaked online and it seems that Sony is planning a mid-range alternative to its current Xperia Z flagship.

While the Sony Xperia ZR seems part of the same category as the recently launched Xperia SP handset, it packs slightly better hardware components.

According to the Xperia Blog, the Xperia ZR handset could be the C550X device that leaked recently. Aside from the model number, the publication also points out that the purported smartphone also has the codename "Dogo."

Based on the leaked specs, the Sony Xperia ZR will sport a 4.6-inch HD display with a resolution of 720 x 1280 pixels, most likely powered by the Bravia Engine 2 like most new devices.

Similarly to the Sony Xperia SP, the Xperia ZO will reportedly pack a Qualcomm Snapdragon S4 Pro chipset, but boast a quad-core configuration instead of dual-core. The report further suggests the handset may sport a newer SoC version such as the 600 series rather of the one mentioned.

Other similarities with the Xperia SP include 2GB of RAM (the current industry standard) and a 13-megapixel camera with an Exmor RS sensor. The Sony Xperia ZR packs 8GB of internal storage, but the Micro SD card slot allows for additional memory. The 2,300 mAh battery should provide decent performance.

In terms of design, the Sony Xperia ZR seems quite similar to the Xperia ZL handset. The report further mentions the purported Xperia ZR will sport IP55 and IP58 ratings, which means it's slightly more resistant to water than Sony's current flagship smartphone. Simply put, those ratings mean the handset can resist for up to 30 minutes submerged at up to 1.5 meters deep. In other words, a splash of water would be nothing for this swimmer.

The report makes no mention of pricing or release date for the Sony Xperia ZR, but it should come as a cheaper alternative to the Sony Xperia Z flagship. While a water-resistant handset with a more affordable price tag sounds good, Sony made no official announcement or comments regarding this handset, so take things with a grain of salt for now.