yes. 401 is longer than 402, and will average (correct me if i'm wrong anyone) about an hour longer run time, give or take. some find it nominal, it really depends on if you're going to be
vaping it constantly for hours at a time.
me, i puff a few, put it down, puff a few 20 mins later, put it down...so if that's your method, you probably won't notice all that much.
if you have it in your mouth from 8am til 10pm, then the longer battery time will surely help you.