Keep track of your heart rate with your watch

At present, many people measure various data while running. People who are particularly concerned about own health care not only about their running route but also their heart rate. Casio has released WSD-F21HR, the smart watch for outdoor use as a new item of their outdoor brand PRO TREK Smart.

This is a new model that adds a heart rate measurement function based on the WSD-F20 they released in 2017. It has a watch-face that is linked to the heart rate measurement function. When the built-in accelerometer detects the user's movement (walking, running, biking), the heart rate measurement starts automatically. You can check your heart rate zone history for the past 24 hours, daily maximum / minimum heart rate, and daily energy consumption on a regular watch-face. The watch-face on the heart rate measurement screen allows you to check your current heart rate zone, current heart rate, daily maximum / minimum heart rate, and daily energy consumption. When you cross a pre-set heart rate zone, it will be notified with a display and vibration to prevent you becoming over-paced. It can also measure the maximum oxygen intake (per kg body weight) that can be taken into the body per minute, so you can use it as a measure of endurance such as running. In addition, using a mobile application linked to this, you can record and manage daily exercises.
It runs on a rechargeable lithium-ion battery and runs for about 20 hours with a charging time of about 2.5 hours(When heart rate is measured by running / trail running using GPS). The size is about 61.7 x 57.7 x 16.8mm and weighs about 81g. Accessories are an AC adapter and a dedicated charging cable. The price is 61,600 yen (including 10% tax)