I do not entirely agree with the moderator’s reply. For some time now the
vector has probably been the most popular altimeter wrist watch among my fellow pilots in the powered paragliding community. I can’t remember how quickly the altimeter can be set to update on the watch but it’s probably at least every 5 seconds else I wouldn’t have bought it.
Below 200ft agl my attention is likely to be elsewhere (looking out for trees, powerlines, and towers) rather than on gadgetary, and above 200ft I found it adequate for flying with.
As you are not under power and probably spend a fair bit of your flight time searching for lift, why wouldn’t you want to be using an altimeter with built in variometer instead anyway?
I personally have sent my
vector back for repair three times in less than 5 years, and now it has failed again I’m looking for an alternative watch rather than another $55 - $85 repair bill.