Excellent day in the Lake District. Went up and around the Fairfield Horseshoe. The weather lower down was warmish early on but the tops were chilly, about 5c with a windchill of -3c.
Started out with the Fenix 5 on a Wahoo Tickr heart rate strap and the AW4 on optical. I was just wearing a teeshirt on the way up so I could move faster without overheating.
AW4 matched the Fenix 5 to within 1-3 heart beats. It was so close I had to check that the AW4 hadn't connected to the strap. It continued like this until I got to the point where I couldn't feel my arms from the wind. The AW4 HR only locked up when I stopped.... I guess blood was being diverted away from extremities at that point so I paired it to the HR Strap.
This was very impressive for an optical HR monitor as there were a lot of sudden changes in heart rate and my arms were very cold. The Fenix 5 optical would have locked up very early on and probably not recovered.... I've never been able to trust it at all with anything with sudden changes in HR let alone cold. I think the AW4 will be perfect in warmer weather without a HR strap.
Loving the App, no issues at all and all the data easily to hand. The map is extremely clear although I do use this alongside ViewRanger as we have the OS maps. Overall, it's very impressive and gives a ton more flexibility over the Garmin in terms of what you want to see..... and, it's very clear.
I may have missed it, but the one thing I noticed, there was no average moving pace (excluding stops). Also, the Activity App does not seem to pickup on the floors climbed/recorded in the Workoutdoors app.... this of course could be out of your control. All the same..... excellent job you've done with this!!!