"For runners and active outdoor enthusiasts, the Garmin Forerunner 170 GPS Running Smartwatch delivers rugged performance, easy-to-use features, and a bright AMOLED touchscreen display. Track pace, distance, and heart rate, then dig deeper with advanced training and recovery metrics. Training Readiness helps you determine when you're prepared for a productive workout, while Training Status shows how effectively you're training. Garmin Coach personalized training plans support a wide range of goals and experience levels, from beginner run/walk workouts with fewer weekly runs to higher-volume, higher-intensity plans for experienced runners. With up to 10 days of battery life in smartwatch mode and up to 20 hours in GPS mode, the Forerunner 170 is built to keep up with your daily activity and training goals. Built with a 5 ATM water rating, this athletic watch withstands pressures equivalent to a depth of 50 meters. Its rugged silicone strap, chemically strengthened glass lens, and fiber-reinforced polymer bezel are ready for whatever you throw at them. Watch size: 1.67"" dia. Display size: 1.2"" dia. Memory: 4GB. Manufacturer model #: 010-03920-00. GPS running smartwatch Bright AMOLED touchscreen display Pace tracking Distance tracking Heart-rate tracking Advanced training metrics Recovery metrics Training Readiness feature Training Status feature Garmin Coach personalized training plans Up to 10 days of battery life in smartwatch mode Up to 20 hours of battery life in GPS mode 5 ATM water rating Chemically strengthened glass lens Fiber-reinforced polymer bezel Rugged silicone strap"