Amazfit Bip Smartwatch by Huami with All-Day Heart Rate and Activity Tracking, Sleep Monitoring, GPS, Ultra-Long Battery Life, Bluetooth, US Service and Warranty (A1608 Black) Price: $79.97 (as of 08/02/2020 06:59 PST- Details)

The Amazfit Bip smartwatch comes with 30-day long battery life on a single charge of 2.5-hours.
Optical heart rate monitoring and built-in GPS to track daily step count, distance traveled, calories burned, and sleep quality.
4-sport modes – outdoor running, treadmill, cycling and walking with detailed insights into most frequent activities.