![Amazon.com: SAMSUNG Galaxy Watch 4 40mm Smartwatch with ECG Monitor Tracker for Health, Fitness, Running, Sleep Cycles, GPS Fall Detection, Bluetooth, US Version, SM-R860NZSAXAA, Silver : Cell Phones & Accessories Amazon.com: SAMSUNG Galaxy Watch 4 40mm Smartwatch with ECG Monitor Tracker for Health, Fitness, Running, Sleep Cycles, GPS Fall Detection, Bluetooth, US Version, SM-R860NZSAXAA, Silver : Cell Phones & Accessories](https://m.media-amazon.com/images/I/61dh16sj5+L.jpg)
Amazon.com: SAMSUNG Galaxy Watch 4 40mm Smartwatch with ECG Monitor Tracker for Health, Fitness, Running, Sleep Cycles, GPS Fall Detection, Bluetooth, US Version, SM-R860NZSAXAA, Silver : Cell Phones & Accessories
![SAMSUNG Galaxy Watch 4 40mm Smartwatch with ECG Monitor Tracker for Health, Fitness, Running, Sleep Cycles, SAMSUNG Galaxy Watch 4 40mm Smartwatch with ECG Monitor Tracker for Health, Fitness, Running, Sleep Cycles,](https://m.media-amazon.com/images/I/61V1hAhDVlS.jpg)
SAMSUNG Galaxy Watch 4 40mm Smartwatch with ECG Monitor Tracker for Health, Fitness, Running, Sleep Cycles,
![Samsung Galaxy Watch Active 2 review: A sleek smartwatch that's better value than the Galaxy Watch 3 - CNET Samsung Galaxy Watch Active 2 review: A sleek smartwatch that's better value than the Galaxy Watch 3 - CNET](https://www.cnet.com/a/img/resize/49fb8fcefc404211f10662f458771d619e78f8f6/hub/2019/09/24/24970195-2fee-4c54-b03f-dec3cec899d5/samsung-galaxy-watch-1.jpg?auto=webp&fit=crop&height=1200&width=1200)