Your phone could help keep you fit, sizing up everything from body fat levels to heartbeat and even stinky breath.
Japan's largest mobile phone carrier has unveiled its prototype for a fitness phone.
The mobile phone is equipped with a built-in pedometer and can measure burned calories and heart rate.
Other features on the phone may include GPS tracking and a music player for workouts.
And get this, a breathalyzer test may also be in the works for the fitness phone.