The Halo's language can be changed by Navigating to settings then selecting 'Language & input'. From here you can select which language you prefer for your Halo.

The Halo's factory reset option can be accessed by navigating to Settings the 'Reset Equipment'. From there you can select the conditions of the reset and scroll to the bottom option to factory reset the watch.

The Halo's date and time can be changed by navigating to 'Date &Time' in the settings. If you would like to manually change the date on your Halo, you will have to disable the 'Automatic date & time' option. Once that option has been set to 'off' you should be able to access the time and date fields.

The Halo's Volume options can be accessed in the 'Sound' options under settings.