Fitbit, Inc., manufacturer of the Fitbit Flex activity and sleep tracking wristband, will donate a portion of sales of its new Red Flex products and red bands to the American Heart Association’s Go Red For Women movement.

The company will give the AHA $10 for every Red Flex wristband and $2 for every Red Flex accessory band sold in May — up to $50,000 total — to help raise awareness of heart disease in women.

Pre-orders will come with a Mother’s Day card telling recipients that their gift will be coming soon – items are expected to be shipped by the end of May.

The new Red Flex is a wristband product that costs $99.95 and is available at and Verizon. It includes a tracker, red band, charger and wireless sync dongle, which connects the device to a user’s online Fitbit account. The red band alone, which can be used with existing Flex devices, is $14.95 on

“The American Heart Association’s Go Red For Women movement is grateful to Fitbit for supporting us in our fight against heart disease in women,” Bernie Dennis, chairman of the American Heart Association national board of directors, said in a news release. “This is not only an exciting opportunity to kick off our relationship with Fitbit, but also to underscore the importance of physical activity in beating this largely preventable disease.”

Cardiovascular disease is the top killer of women in America, causing one in three women’s deaths each year. The AHA recommends taking 10,000 steps a day for improving health and decreasing risk of heart disease. Research has shown that walking as little as 30 minutes a day can help reduce risks of many health concerns, including risk of coronary heart disease and stroke, osteoporosis, breast and colon cancer and Type 2 diabetes.

Fitbit designs products that help people become more active, tracking everyday health and fitness, and providing the tools, information and motivation to reach daily and long-term goals. Fitbit users take 43 percent more steps than non-users, according to the company.