Garmin's Fenix Chronos watch was made with serious athletes in mind.
The watch has robust heart rate sensors built in, and is intended to replace a chest strap for those who are looking for the most accurate possible heart rate readings. The watch can also count your steps, calculate running speed, monitor your sleep, measure calories burned, and can determine the maximum volume of oxygen you can consume each minute.
It will even track your fitness goals over time and set a recovery timer for when you finish your workout. The Fenix watch isn't limited to standard activities like weight-lifting, cycling, or running — it can also track swimming, skiing, golding, paddle boarding, and rowing.
Besides fitness tracking, the Chronos watch has built-in GPS, gets between 13 hours and one week of battery life, and can receive notifications like calls, texts, and emails.