Xperia z5 smart phone looks.camera.processor.display.ram.batterylife.almost all better but optimization is not good iam using 3days this phone. iam dissapoint in 1 thing is really very bad this phone comes heating issue when iam goto video recording in 5 to 10 using the phone in vediorecording the phone say phone is heating go back iam facing this problem not only in camera also facing in games so please sony. fast updates send in your z5 .thankyou