As of yesterday at some point, Fitbit updated in the Play Store and added in a slew of Xperia Z model support.
- Xperia Z
- Xperia Z1
- Xperia Z1S
- Xperia ZL
- Xperia ZR
- Xperia Z Ultra
- Xperia Tablet  Z
Along with the update you also now have support for the Motorola Moto G too. The update adds to the list of slowly growing Android device support that was dominated by Samsung and the Droid Razr line mostly. The update also brought some Korean bug fixes and addressed crash reports.
Anyone out there with one of the newly supported devices happen to have a Fitbit available to try it out? If so, let us know if its working out in the comments.