In the movie Thanks For Sharing, Phoebe (played by Gwyneth Paltrow), wears a Polar FT4 watch while working out.

The Polar FT4 is a sportswatch which can show your heart rate, calories burned and training summaries. The heart rate is measured via the included Polar H1 heart rate sensor which has to be separately fastened to the body

In the film the character Phoebe is wearing the silver/black version, but the watch is available in other colors as well, including pink, bronze, blue and green.

The Polar FT4 is available online, for example at Amazon.com, Amazon.co.uk or on eBay.

In the same film, actor Josh Gad, who plays Neil, wears a Casio DB36-1AV and Mark Ruffalo wears a Hamilton Khaki Field Titanium Automatic.