There are two ways in which track-following is implemented...
1....On left: your position is shown moving along the stored track
2....On right: a compass-like arrow tells you which way to travel
Following track
You can see the shape of the route ahead before you get there.
Needs higher-resolution screen
Following arrow
Does not require concentration when using GPS as a check.
Easier to read if multi-tasking
A little problem
Unlike a compass, a GPS can only steer you when you are moving.
i.e. Don't stop to look at it!
The two methods