i aaaaave no issues with the 730 its almost 1 month and 8 days ,only issue that i faced was headphone ,that was my mistake i didn`t push it in properly ,every thing works properly and everything is beautiful about the phone ,dual sim works perfectly , i only have suggestions ,the notification centre should be completely customized according to user`s need and yes a larger speaker same as 920 or 830 ,the ringer volume is too low , i live in mumbai and it is difficult to here the ring in open environment ,vibrator saves the day .