I weigh 85kg, but when i sync my watch to to Garmin Connect on my phone it sets my weight to 156kg on my watch after. This has a dramatic effect on my kcal expenditure! So now every time after i sync my watch, or prepare to track an activity i have to check or alter the weight to my correct weight. PLEASE HELP!
it could be a firmware thing. there is a longstnading bug across several devices where a firmware update changes one of your personal setting from metric to statute . i have only experienced this with autolap/distance measurements. could be that.
or it could be an erroneous setting you have fro msome other garmin device or from garmin conenct whihc overwrote your setting on the watch