I did my first outdoor cycle today. Overall, the watch did very well. Its distance was only 0.6% different from my Garmin and my bike computer. That is definitely a win. Average HR matched exactly over almost 2 hours. The only thing suspect is calorie calculation. The AW calculated 1,500 calories total, or about 814 calories per hour. That seems high, given my HR only averaged 128 and it was not an A-level effort. The Garmin calculated about 1,100 calories total, or 580 calories per hour. I am much more inclined to believe the Garmin's metrics here. Where the AW totally loses it, and I think this is the root of the calorie calculation algorithm problem, is that the AW had 209 BMR calories (total calories - active calories). This extrapolates to 2,722 BMR calories per day. That is beyond bogus. This also concluded a battery demand test today. I ran for about 90 minutes this morning and then biked for about 120 minutes in the afternoon, following a full day of normal use in between. I started at 5:00 AM off charger, and I put it back on the charger at 6:30 PM at about 10% battery. So, the watch easily supported 3-1/2 hours of workout plus another 10 hours of regular use. That is more than enough power for any endurance workout or race I will ever do with the watch.