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From Fellrnr.com, Running tips
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|[[File:BridgeGarmin 225.jpg|none|thumb|x300px| You can see the 225 has rather mediocre accuracy, and is rather worse than the similar [[Garmin 620]]. It does badly around the twisty section, cutting the corners too much due to smoothing. It does a little better with the sharp turn seen on the right side of the diagram. It gets a little lost going under the bridge on occasion, but that's not too much of an issue. The lap markers in blue are more widely dispersed than they would be with a better device. (This diagram has tracks color coded with green indicating good accuracy through to read red indicating poor accuracy, and the lap markers as blue dots.)]]
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|[[File:AccuracyGarmin 225.jpg|none|thumb|x300px| This close up section of a zigzag shows the 225 tracking okay most of the time, but a disturbing number of the tracks are poor. (This diagram has tracks color coded with green indicating good accuracy through to read red indicating poor accuracy, and the lap markers as blue dots.)]]
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|[[File:ZigZagGarmin 225.jpg|none|thumb|x300px| Here you can see the 225 displaying the typical GPS behavior with the tracks that have the green lines shifted slightly down and to the left, blue up and to the right. This is less marked that other devices, but you can see the pattern. You can also see the lap markers shifted based on direction. (This image has the tracks color-coded for direction, with green coming from the right, blue from the left.)]]
