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From Fellrnr.com, Running tips
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There are several features to consider when looking for a runners watch.
* '''GPS.''' GPS provides an easy measure of how far you've run, which is critical for your training. While it is possible to map out a run afterwards, this tends to be tedious and is typically less accurate than GPS.
** '''GPS is easy to use and accurate enough for most running, but it is not accurate enough for things like interval training. ** The errors in GPS average out over a run, but they cause a problem when trying to display current paceAccuracy. ** ''' I have 've [[GPS Accuracy| Analyzed the Accuracy of Some GPS watches]] for those interested in learning more, and I've found that adding a Footpod to the 310XT/910XT improves their accuracy noticeably.
* '''Waterproofing.''' Even if you don't swim, having good waterproofing is important to prevent your watch being destroyed by the rain or sweat.
* '''Current pace from a [[Footpod]].''' A [[Footpod]] can be used to provide [[Cadence]] and in some watches it can also provide pace and distance. Unlike GPS, [[Footpod]]s need to be calibrated to provide accurate pace/distance.
* The 310XT is great value for money at this price level.
* A great feature is the ability to use the optional [[Footpod]] to display your current pace while using GPS for overall pace, distance and route. Only the 310XT, 910XT and Garmin 610 can do this.
* The GPS is more accurate than earlier watches, and has a faster startup time. The optional [[Footpod]] also improves GPS accuracy.
* The housing is fully waterproof (to 50m/160ft), so running in the rain is no problem.
* Connection to a PC is wireless, using a USB adapter. This is less hassle than any of the other options I've tried.
