![Amazon.com: SAMSUNG Galaxy Watch 4 Classic 46mm Smartwatch with ECG Monitor Tracker for Health, Fitness, Running, Sleep Cycles, GPS Fall Detection & Bluetooth, US Version, Black : Cell Phones & Accessories Amazon.com: SAMSUNG Galaxy Watch 4 Classic 46mm Smartwatch with ECG Monitor Tracker for Health, Fitness, Running, Sleep Cycles, GPS Fall Detection & Bluetooth, US Version, Black : Cell Phones & Accessories](https://m.media-amazon.com/images/I/61im3OsaksL.jpg)
Amazon.com: SAMSUNG Galaxy Watch 4 Classic 46mm Smartwatch with ECG Monitor Tracker for Health, Fitness, Running, Sleep Cycles, GPS Fall Detection & Bluetooth, US Version, Black : Cell Phones & Accessories
![Buyr.com | Smartwatches | Samsung Electronics Galaxy Watch 4 Classic 46mm Smartwatch with ECG Monitor Tracker for Health Fitness Running Sleep Cycles GPS Fall Detection Bluetooth US Version, Black Buyr.com | Smartwatches | Samsung Electronics Galaxy Watch 4 Classic 46mm Smartwatch with ECG Monitor Tracker for Health Fitness Running Sleep Cycles GPS Fall Detection Bluetooth US Version, Black](https://images.buyr.com/Vw-a3klkv2n6it0OeGU-Qg.jpg)
Buyr.com | Smartwatches | Samsung Electronics Galaxy Watch 4 Classic 46mm Smartwatch with ECG Monitor Tracker for Health Fitness Running Sleep Cycles GPS Fall Detection Bluetooth US Version, Black
![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 : Electronics 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 : Electronics](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 : Electronics
![Amazon.com: SAMSUNG Galaxy Watch 4 Classic 46mm Smartwatch with ECG Monitor Tracker for Health, Fitness, Running, Sleep Cycles, GPS Fall Detection, LTE, US Version, Silver : Cell Phones & Accessories Amazon.com: SAMSUNG Galaxy Watch 4 Classic 46mm Smartwatch with ECG Monitor Tracker for Health, Fitness, Running, Sleep Cycles, GPS Fall Detection, LTE, US Version, Silver : Cell Phones & Accessories](https://m.media-amazon.com/images/I/71yNmp4OnXS._AC_UF894,1000_QL80_.jpg)
Amazon.com: SAMSUNG Galaxy Watch 4 Classic 46mm Smartwatch with ECG Monitor Tracker for Health, Fitness, Running, Sleep Cycles, GPS Fall Detection, LTE, US Version, Silver : Cell Phones & Accessories
![Restored Samsung SM-R890NZKAXAA Electronics Galaxy Watch 4 Classic 46mm Smartwatch with ECG Monitor Tracker, Black (Refurbished) - Walmart.com Restored Samsung SM-R890NZKAXAA Electronics Galaxy Watch 4 Classic 46mm Smartwatch with ECG Monitor Tracker, Black (Refurbished) - Walmart.com](https://i5.walmartimages.com/asr/090c286f-2cc3-45e1-aaaa-3c0fb1274da4.09a93ad327a9a7fb45d983e0841e7049.jpeg?odnHeight=768&odnWidth=768&odnBg=FFFFFF)
Restored Samsung SM-R890NZKAXAA Electronics Galaxy Watch 4 Classic 46mm Smartwatch with ECG Monitor Tracker, Black (Refurbished) - Walmart.com
![Amazon.com: SAMSUNG Galaxy Watch 4 Classic 42mm Smartwatch with ECG Monitor Tracker for Health, Fitness, Running, Sleep Cycles, GPS Fall Detection, LTE, US Version, Silver : Electronics Amazon.com: SAMSUNG Galaxy Watch 4 Classic 42mm Smartwatch with ECG Monitor Tracker for Health, Fitness, Running, Sleep Cycles, GPS Fall Detection, LTE, US Version, Silver : Electronics](https://m.media-amazon.com/images/I/71VNyRYDQeL._AC_UF894,1000_QL80_.jpg)
Amazon.com: SAMSUNG Galaxy Watch 4 Classic 42mm Smartwatch with ECG Monitor Tracker for Health, Fitness, Running, Sleep Cycles, GPS Fall Detection, LTE, US Version, Silver : Electronics
![Is the ECG of Galaxy watch 4 accurate? These two samples were taken under 20 seconds of one another. : r/GalaxyWatch Is the ECG of Galaxy watch 4 accurate? These two samples were taken under 20 seconds of one another. : r/GalaxyWatch](https://i.redd.it/is-the-ecg-of-galaxy-watch-4-accurate-these-two-samples-v0-owbkpifqq8m91.jpg?width=1440&format=pjpg&auto=webp&s=4e1d985581a4534a8a8176a48881df0829fea27f)
Is the ECG of Galaxy watch 4 accurate? These two samples were taken under 20 seconds of one another. : r/GalaxyWatch
![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-R860NZKAXAA, Black : Electronics 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-R860NZKAXAA, Black : Electronics](https://m.media-amazon.com/images/I/61IZmXci7qS.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-R860NZKAXAA, Black : Electronics
![Restored Samsung SM-R890NZKAXAA Electronics Galaxy Watch 4 Classic 46mm Smartwatch with ECG Monitor Tracker, Black (Refurbished) - Walmart.com Restored Samsung SM-R890NZKAXAA Electronics Galaxy Watch 4 Classic 46mm Smartwatch with ECG Monitor Tracker, Black (Refurbished) - Walmart.com](https://i5.walmartimages.com/asr/090c286f-2cc3-45e1-aaaa-3c0fb1274da4.09a93ad327a9a7fb45d983e0841e7049.jpeg)