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From Fellrnr.com, Running tips
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* '''Running Dynamics'''. Some of the newer Garmin watches can show and record Vertical Oscillation (VO) and Ground Contact Time (GCT).
* '''Alerts'''. Some watches will alert you when a metric is out of range. The alert for [[Cadence]] is really useful and one of my favorite features.
=GPS Accuracy=
The V800 has great GPS accuracy, the best of any device I've test so far. The V800 uses the SiRF chipset, which seems to have the capacity for great accuracy.
{| class="wikitable"
|- valign="top"
|[[File:BridgePolar V800.jpg|none|thumb|x300px|The Polar V800 is one of the most accurate devices I've tested, and you can see that the majority of the tracks are green indicating good accuracy. Notice the problems the V800 is having at the bridge. Rather strangely the lap markers are far more spread out than I would have expected on a device this accurate. ]]
|- valign="top"
|[[File:AccuracyPolar V800.jpg|none|thumb|x300px|This is a detailed image of a small zigzag in my course, that shows up how well a device is tracking. The Polar V800 follows this small zigzag quite well. The overwhelming majority of the lines are green indicating a good accuracy, even though the lap markers are quite spread out. ]]
|- valign="top"
|[[File:ZigZagPolar V800.jpg|none|thumb|x300px|Here is the zigzag with the tracks color-coded for direction, with green coming from the right, blue from the left. Typically GPS watches record tracks that have the green lines shifted slightly down and to the left, blue up and to the right. As you would expect from a device as accurate as the V 800, the tracks are close together and follow the line of the zigzag nicely.]]
|}
{{BuyAmazon|AZID=B00JSO9UD2|AZN=Polar V800}}
=Comparison Table=
{{:Best Running Watch-table}}
