Forerunner 235 with Elevate™ heart rate technology measures heart rate at the wrist 24/7, giving you the option to run without a strap. Its colorful gauge identifies your heart rate zone and beats per minute in real time.A built-in accelerometer captures distance and pace data when you’re running on an indoor track or treadmill, with no need for a separate foot pod accessory. Once you’re done running, it doubles as an activity tracker², counting your steps and calories throughout the day. It also reminds you to move after sitting for more than an hour. Forerunner 235 is compatible with GPS and GLONASS satellites to locate your position quickly and precisely whether you’re running deep in the woods or near tall buildings.