Dis-advantages of Android:

Limitations of Android OS:
Below limitations are based on comparing a single mobile from each OS. I posted only the drawback I frequently read about Android and my practical experience.

Little lag
Still an Android OS with quad-core processor has a little lag. I tried opening Temple Run game in iOS (iPhone), Windows 8 (Nokia Lumia 920) and Android OS (Samsung Galaxy Grand). Once I clicked the game icon Windows 8 and iOS responded immediately and showed 'Play' button, but I found there is a little lag in Android and it showed 'Play' button nearly after 30 seconds. In Windows 8 and iOS the game opened just like a 1 KB text file. This is unsolved problem in Android OS and many tech experts commented about this. This is the only reason iPhone tops every time. 

Awkward design
Android mobile design is always awkward. When I have that above mentioned mobiles in my hand, Lumia 920 was eye-catchy. It looks very professional and impressed me a lot. We still love Android mobile only for its free apps.

Heat
If you use Wi-Fi connectivity for about a hour you can feel the heat in fuselage (back panel). I didn't notice this either Windows and iOS.

Most of the complaints were made for app crashes and lags. But Android is the only OS that provides you unlimited free apps. In Windows or iOS you need to buy each and every app. 

FINALLYYYYYYYY!!!!!!!!!

Sony Xperia Z1 prices hit the web: $730, €650, £564

Pricing info for the new Sony Xperia Z1 is starting to appear online. Clove UK has the flagship at £564 (including VAT) and notes that the first stock is expected to arrive on September 16. For comparison, the old Xperia Z is £450.

Negri Electronics has priced the Xperia Z1 at $730 and will get it in stock a few days later, on September 20.

The Erman press release has prices for the ZZ1 and the various other accessories – the flagship Android phone will cost €650, the availability is a vague "Q3". Unfortunately, we couldn’t find it in any German stores yet.

The press release also lists the prices of the accessories showed off yesterday. The Cyber-shot QX100 lens-style camera is €450 (and $500on Amazon.com), the QX10 is €200 ($250). The Sony SmartWatch 2 is scheduled for Q3 at €200. The Smart Imaging Stand is €120, while the simple tripod is €40, both are coming out at the end of the month.

We handled the Xperia Z1, the QX lens-style cameras and the other accessories at the IFA grounds, here's what we thought of them.