Polar FT7 - Men's vs. Women's ?

From what I can tell, the watch size/band is a bit bigger and that is the main difference.

Think that is the only difference i.e. a narrower strap.

Doesn't matter. I have a Polar FT40 men's version (it was cheaper on eBay than women's haha) It's slightly bigger, but nothing wacky, and plenty of holes in the watch strap, it would never be a problem. Also, all the Polar's you can set the gender on, regardless of what "model" it is. GO FOR IT! I saved a bunch of money doing it years ago

My wife has the women's one, I have the man's

Only difference is the strap and colour

We tried using each others one day with bad results.

When my wife started lifting it laughed at the tiny weights, then it made a smart as5 comment, then started telling her what to do in a patronising way. Finally it led her to the Zumba class to lear at the girls through the window.

Didn't work out better for me either. It made me gossip during my weight training instead of lifting, told me to flutter my eyelashes and go and ask the muscley guys for advice even though I didn't need it, then led me to the dance studio to do 3 hours of yoga

I'm wearing the FT7 black and red version right now as it happens and even though the strap is technically bigger there's countless links on it to fit any size of wrist. It will definitely fit unless you have finger-sized wrists. Lookwise it is quite neutral. It wouldn't look out of place on a female that's for sure!

New to the HRM world. Looking at the Polar ft7 but would like to know if both my husband and I can use it. Is it difficult to reprogram our weight each time? Or are we simply better off with two of them?

it's not hard to reprogram but you also have to remember you have to readjust the chest strap unless you are the same size and or have two. (I have two straps)

i would just say buy two or better yet buy a garmin forrunner 110 with HRM. much better product.