My Garmin Lily does not seem to accurately calculate miles. This morning it tracked over 5,00 steps and listed the distance at 0.67 miles and later it tracked 1,500 steps as 0.5 miles. I previously has a Garmin Vivofit 2 and it tracked 1 mile as 2,387 steps. I have tried to set the Lily with the same metric but it doesn't seem to work. Also, my battery is draining very quickly. I had a full charge last night at 10PM, this morning at 11:43 AM the battery is only 34%.