iPhone 4S list of complaints are as follows: 45% take issue with battery life, 20% can’t connect to WiFi, 15% have trouble with their Bluetooth connection, 10% with Siri, and the remaining 10% make up “other.”
As for the Nokia Lumia 900. 25% complained that the display has an odd purple tint, 20% had issues with the camera button, 20% with finding apps, 20% with battery life, and 15% have other issues.
Finally the Galaxy S III. 55% say the microphone doesn’t work right, 15% complain about battery life, 15% think their device gets hot, 10% have issues connecting to WiFi, and the 10% fall under “other”.
Fixya Press Release