Samsung Galaxy S4 vs Sony Xperia Z99+
Neither the Galaxy S4, nor the Xperia Z are exceptionally good as far as call quality goes. The Z's earpiece tends to sound a tad better than the one of the S4, but not drastically. Conversely, the microphone of the Xperia Z is even worse than the one of the Galaxy S4. As Elton John once sang, “it's a sad, sad situation”... to see these powerhouses fail miserably in the call quality test. Actually, the Galaxy S4 works OK, it shouldn't give you much trouble, but it's just downright unimpressive.
There's no doubt that the Sony Xperia Z is one very capable smartphone. It has a pretty cool appearance and can easily execute whatever task you want. Still, the Samsung Galaxy S4 seems to be the more appealing handset overall. Its design may not be anything to write home about, but it's compact and comfortable to hold, despite the presence of an equally large 5” screen. When it comes to features, the Samsung Galaxy S4 is once again the better-equipped handset thanks to the multitude of user experience enhancements delivered by the latest TouchWiz Nature interface.
Sony has definitely created one powerful device with the Xperia Z, but they'll have to do even better than that if they want to be a real challenge for the best in the industry. Improving their designs from practical standpoint and enhancing their user experiences would be great places to start from.
Samsung Galaxy S4 vs Sony Xperia Z: