Today, I decided to put my AW Series 4 up against my Fenix 5 Plus. Mainly because the AW tracks on my walks, and short hikes around the trails here in town are so much better than the fenix, I wanted to see how they compared on a bike ride. The results are totally disappointing. I used the "WorkOutdoors" app on the watch, and with the fenix, I have a PowerCal Chest strap that will give power from the heart rate. I also have the Garmin magnetless speed and cadence sensors on my bike. So, I fire up the Garmin, and get a DEM elevation fix, (most accurate), and then opened the biking app on the Fenix. After that, I let both "soak" while I pulled my bike off the rack, hooked up the little Edge Touring I use to see where I'm at, and how far to my next position. I also use it in case the Fenix upchucks on me, I've had earlier fenix's do that. The tracks are pretty darn good on the fenix, but the tracks on the Apple Watch are HORRIBLE. Oddly enough, the heart rate data appears to be fairly close, but also totally disappointing is the exercise credit, and movement/calories credit. For an hour and 17 minutes, worth of ride, the AW only credited me with 12 out of the 30 minutes! It only credited me with 336 calories for the entire ride! On the other hand, the Garmin says I burned 633 calories, which given that I was in zone 3 and 4 for most of the trip, (HR >130-150 for me, a 71 year old male with a max HR of 161), and a training effect of 4.7. This translates to a TRIMP of 145, or a Training Peaks TSS Score of 51, and an intensity factor of .63. Here is the MYGPSFILES link to compare the Garmin and AW tracks, along with the Garmin Connect link to the activity. http://www.mygpsfiles.com/app/#RttnP9Jt And the Garmin Connect Link. https://connect.garmin.com/modern/activity/3584434576 I don't know how to export the Activity/Health data, or it would be here. Anyone have any ideas what's going on here?