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From Fellrnr.com, Running tips
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* '''How far did I run?''' This is the most basic question, and sadly, the 920XT has rather middling [[GPS Accuracy]], and while firmware updates might improve this slightly, I doubt it will get close to the accuracy of the [[Polar V800]]. The level of error will depend on your route; on straight lines it will be remarkably accurate (as will any other GPS watch), but on a twisty course like the one I run on, it is out by around 0.5 miles on a 20 mile run. That's enough to mess up your marathon training. If this is important to you, look for a more accurate watch.
* '''How fast am I running?''' Knowing how fast you're running can be a nice to know, or it can be vital for your training or race performance. Because of the nature of GPS, watches that rely on GPS signal alone tend to have serious problems with current pace. Thankfully, Garmin has added support for the display of current [[Pace From A Footpod]] while getting all other data from GPS.
* '''Where am I? '''The 920XT does not have full color has some basic navigation functions. ** '''Track Outline'''. There is a display of where you've run, rather like a breadcrumb trail. There are no maps, but so this is just the outline on its own without any context. However, you can download use it to backtrack along your path. ** '''Course Outline'''. This is an outline of a route that can be downloaded. I've found this useful during ultras or in unfamiliar cities where I've needed to know where to go. ** '''Back To Start'''. This is a coursesimple arrow point to your starting point, so it won't help you backtrack. ** '''Back To Waypoint'''. You can mark a location and use the arrow to point to it will give directions back later. Again, this is a simple "as the crow flies" pointer. ** '''GPS "Compass"'''. There's no magnetic compass so you have to be moving for the startGPS to give you a sense of direction.
* '''What's my cadence? '''[[Cadence]]''' '''is one of the most critical and often overlooked aspects of running. If you get your Cadence right, many other things naturally fall into place. Not only does the 920XT get [[Cadence]] from a [[Footpod]], it will also get it from the Garmin Run Heart Rate monitor. There is also support for Cadence from the internal accelerometer, though I find that's not as accurate. The Cadence alerts are especially useful for keeping you on track.
For ultramarathon running the battery life of the 920XT makes it a strong candidate for shorter races (50 miles/100k). But if you hope to be still moving during the [[Second Dawn]], then you should look elsewhere. See [[Best Running Watch#Watches for Ultrarunning| Watches for Ultrarunning]] for more details.
