Interval training is a great way to burn calories and get fit. You are going to need a decent timer to stay on track with your workout though. There are plenty of basic timers available on the market. The Flex Timer happens to be a smart fitness clock that can be controlled by your smartphone, tablet, or smartwatch. The Flex Timer is available in Home and Gym editions with 2.3″ and 4″ digits respectively.
Thanks to the companion app, you can program complex workouts on your smart device. It is possible to control multiple clocks simultaneously. Users have the option to connect their heart rate monitor to see measurements throughout each workout session. The device is compatible with iOS and Android devices. More information is available on Kickstarter.