Specification Sleep score and insights: Yes Battery life (smartwatch mode): Up to 10 days Pulse Ox blood oxygen: Yes (spot-check, and optional all-day and in sleep) Garmin Pay: Yes Music storage: Yes (For Music Edition Only) Training readiness: Yes Training status: Yes Watch display type: AMOLED (optional always-on mode) Touchscreen: Yes Watch water rating: 5 ATM Strap material: Silicone Lens Material: Chemically strengthened glass Bezel Material: fiber-reinforced polymer Quick Release bands: Yes (20 mm, Industry standard) Physical size: 42.6 x 42.6x 11.9 mm Fits wrists with a circumference of 126-203 mm Weight: 41 g Display Size: 30.4 mm (1.2”) diameter Display Resolution: 390 x 390 pixels Color display: Yes Large font option: Yes Battery type: Lithium ion Battery life Smartwatch mode: Up to 10 days (4 days display always-on) Battery Saver Smartwatch mode: Up to 19 days GPS-Only GNSS mode: Up to 20 hours All-Systems GNSS mode: Up to 14 hours GPS-Only GNSS mode with music: Up to 7.5 days (Music Edition) All-Systems GNSS mode with music: Up to 6.5 hours (Music Edition) Charging method: Garmin proprietary plug charger Memory/History: 4 GB Clock Features Time/date: Yes GPS Time Sync: Yes Automatic daylight saving time: Yes Alarm clock: Yes Smart wake alarm: Yes Timer: Yes Stopwatch: Yes Sunrise/sunset times: Yes Health & Wellness Monitoring Wrist-based heart rate (constant, every second): Yes Daily resting heart rate: Yes Abnormal heart rate alerts: Yes (high and low) Respiration rate (24x7): Yes Fitness age: Yes Body Battery energy monitor: Yes All-day stress: Yes Relaxation reminders: Yes Relaxation breathing timer: Yes Meditation: Yes Breathwork: Yes Sleep: Yes (advanced) Sleep coach: Yes Breathing variations: Yes Nap detection: Yes Hydration: Yes (in Garmin Connect and optional Connect IQ widget) Women's health: Yes (in Garmin Connect and optional Connect IQ widget) Health snapshot: Yes Lifestyle logging: Yes Health status: Yes Sensors GPS: Yes GLONASS: Yes Galileo: Yes Garmin Elevate wrist heart rate monitor: Yes Pulse Ox Blood Oxygen Saturation Monitor: Yes Barometric altimeter: Yes Compass: Yes Gyroscope: Yes Accelerometer: Yes Thermometer: Yes Ambient light sensor: Yes What's in the box 1x Forerunner 170 GPS running watch 1x Charging cable 1x Documentation Let 'Em Know You're a Runner Forerunner 170 is the purpose-built GPS running smartwatch with personalized beginner-friendly training plans and advanced training metrics that’ll help you reach your goals. 24 months Local Manufacturer Warranty Store in dry cool place. China