MHEALTHNOV
Men's Health have a 10% off coupon for fitness products bought from the Harvey Norman Online store.
T&Cs: Discount off normal ticketed price, limit 1 code per customer per purchase and can only be used for the purchase of fitness products from Harvey Norman Online.
I note that it worked on pre orders for the Motorola Moto 360 watch (pre order) as well bringing it down to $292.50 (pick up in store) which is one of the cheapest prices I can find online.
FYI. Fitbit Flex $126 minus 10% still more expensive than ebay $89.90 delivered plus 2% cashback.