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From Fellrnr.com, Running tips
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* The battery life is short for ultramarathons, but it is fine for the most runners.
=GPS Accuracy =
The Garmin 620 had some well-known 225 does rather poorly for GPS accuracy, and rather worse than the similar [[GPS AccuracyGarmin 620]] issues, but this has been resolved with a firmware update. * The 620 does surprisingly well going under the bridge, an indication that I was expecting it is not having excessive problems with reacquisition. * On to be using the out-same chipset and-back turnaround antenna as the 620 does a little better than , which I'd would expect for its overall ratingto give similar GPS performance. * Running in a straight line is a fairly easy task for most GPS watchesIt's hard to be sure of the underlying chipset without disassembly, and but the 620 does well, beating many watches that have higher overall accuracy. * I not had any issues with problem could also be due to a change in the 620 acquiring or maintaining antenna due to the GPS signal, unlike some other devicesextra optical HRM.
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