Hi Gas,
To my knowledge for voice navigation you have to be online, so with a continuous data connection. Than in most remote area's with difficult connection, your battery won't last for a hiking day. (Not to mention data costs when abroad).
But offline you can have guiding along an imported route/track and have a beep alarm activated when you stray more than a set distance from your track. I use that a lot on field-marked tracks and it is a very helpful addition. And with GPS on all day in this weay of using I can easily make it through a full day with the battery of my Defy.
To my knowledge for voice navigation you have to be online, so with a continuous data connection. Than in most remote area's with difficult connection, your battery won't last for a hiking day. (Not to mention data costs when abroad).
But offline you can have guiding along an imported route/track and have a beep alarm activated when you stray more than a set distance from your track. I use that a lot on field-marked tracks and it is a very helpful addition. And with GPS on all day in this weay of using I can easily make it through a full day with the battery of my Defy.