Is xperia Ultra charger dock compatible with xperia Z? There's a low cost generic charger for Ultra but not for Z1. Is xperia Ultra charger dock compatible with xperia Z1? 

http://dx.com/p/portable-cell-phone-usb-charging-dock-station-for-sony-xperia-z-ultra-xl39h-black-262275
I use the charging dock for both Z Ultra and Z1.