I have small wrists and must buy the children's size of watch to get a strap that will fit.  I bought it last year on 10-17. This worked fine--for as long as it worked.  It died yesterday, 3-24.  So the battery lasted me a bit over 5 months.  So this may have sat around unsold for 1 to 2 years, but was only good for 5+ months when it was sold.  Not a good deal.

Now they say you can replace the battery.  But you can't find anyone willing to do it, especially when the velcro strap goes over the battery compartment.  So, it goes in the trash and I need to find another one.

Definitely not a good deal!  Too bad these don't come with a "sell by" date!