Sony's Z1S looks and feels like a Sony product, but with the added ability to take a dip in water without fear. Unfortunately, it lags in a few other areas that keep it from really standing out in a crowd of similarly-priced Android devices. The Z1S certainly improves on the durability of last year's Z1 by adding IP58 certification, which means it can be submerged in water for up to 30 minutes and CNET finds it "as hardy as advertised." Sony also knocks it out on the battery life front by packing in a 3,000mAh battery, and TechRadar says "you'll rarely ever worry about having to charge your battery." Past that, the features start to wane in quality, such as a display that leaves critics split. Gizmodo says "the screen is really lovely," while CNET finds it "pales in comparison with other flagship smartphones' displays." As an actual phone the Z1S is "A-OK," according to Computerworld, but they note it's "awkward" to talk on due to the earpiece location. The Z1S has a lot to offer with its camera, durability and outstanding battery life, but the sum of all its parts keep it from truly excelling. If you're concerned about your phone being wet or are a more adventurous person you'll do well with the Z1S, but others may want to wait and see what comes out of this year's Mobile World Congress.