Garmin Fenix 3 HR Sapphire GPS Multi-Sport Watch - AW16 WRIST-BASED HEART RATE - Garmin Elevate wrist heart rate technology measures heart rate at the wrist, giving you the option to track your heart rate data without wearing a chest strap BLACK SILICONE BAND - Soft, flexible black silicone band adds luxurious feel with resistance to discoloration CHROMA DISPLAY - 1.2 sunlight-visible high-resolution color Chroma optically-bonded display WATER RATING - Water rated up to 10ATM / 100 meters1; suitable for swimming WIRELESS CONNECTIVITY- Utilize one or more Wi-Fi hot spots to automatically sync your data with Garmin Connect and update software (when in range)