Compare series 2 with old watch in swimming

[angeloc]

Hi,
I'm using an Apple watch original in swimming for more than a year, I always choose Workout/Other to record time,calories and heart rate. I'd like to know if somebody can do a testing as follow:

1) use the old watch, choose Workout/Others, swimming for a while.
2) use the series 2, choose Workout/Pool swim, swim the same amount of time as #1

then post time, active calories, total calories, ave. heart rate from the two tests. this will help me make a decision either to upgrade to series 2 or not, if the numbers are similar, then Apple watch original is fine with me,

Thanks,

Angelo