The Samsung Z2, has many quality, the first quality is easy to use for uneducated people.the sound quality is very impressive.the volume is loud than other phones at the same price.The feature I like most in the Samsung Z2 is, a brand new feature that is Wi-fi calling system.Now by using this mobile we can call someone by using Wi-Fi connection.the design is so sleek and beautiful and the goldei edition of Samsung is so beautiful.By using Samsung Z2 I am totally satisfied.I have connected otg and other gadgets and accessories, it worked well.it has 4.inch screen but it looks to much stylish.the best mobile at best price.