Enduro 3 GPS/pace issues

Question

Got the Enduro 3 a few days ago and noticed it's definitely not as accurate as my Forerunner 265. I'm on SW 11.89 and using Auto Select. Has anyone else with the Enduro 3 experienced the same? This is on the same exact neighborhood loop I do. Run cadence is all over the place too but only noticed it on today's run. 
 
 Run this morning with Enduro 3

Run a couple days ago with Enduro 3

Run with the Forerunner 265

gaijin · Answer

The x-axis scales are different for your two Enduro 3 Pace graphs. When viewed on the same scale, they look very similar - no difference. 
 The Forerunner 265 Pace graph looks no different than the second Enduro 3 graph (both have the same X-axis scale), just more smoothing which makes the graph look less spikey. 
 If I were making a comparison between your E3 and F265 graphs, I would conclude that the E3 graph is consistent with more data plotted and less smoothing. 
 The compressed scale of the F265 Cadence graph(100-300) makes it unable to meaningfully compare to the E3 Cadence graph which has a much more expanded scale (165-175) which allows much more granularity in the plotted data. 
 Overall, looks to me like your Enduro 3 is doing a better job of recording and reporting your Pace and Cadence than your Forerunner 265. 
 HTH