The GARMIN Instinct is a digital watch equipped with a GPS heart rate sensor. - Brand: GARMIN - Model Name: Instinct - Included Items: Manual, charging cable - Color: Graphite - Sensors: Heart rate sensor Thank you for viewing. 【Specifications】 ■ Main Uses: Compatible with over 25 activity measurements including hiking, running, cycling, swimming, skiing, snowboarding, and strength training. ■ Main Features: Water resistant, heat resistant, shock resistant, compliant with the U.S. Department of Defense MIL standard "MIL-STD-810G" ■ Size: 45 x 45 x 15.3mm / Weight: 52g ■ Display Size: Custom, 2-window design, 23x23mm ■ Water Resistance: 100m waterproof ■ Internal Memory: 16MB Instinct Smartwatch Tough GPS outdoor watch I have been using this for about 4 years, and I am selling it because I purchased a different product. There are no operational issues. The battery drains a bit faster when using the GPS function, but it could be used for about 14 days when GPS was not in use. Included items are the cable (non-genuine) and the instruction manual, and there is no box. I will initialize the data before shipping.