![Amazon.com: Garmin 010-01863-00 Forerunner 645, GPS Running Watch with Pay Contactless Payments and Wrist-Based Heart Rate, Black, 1.2" : Electronics Amazon.com: Garmin 010-01863-00 Forerunner 645, GPS Running Watch with Pay Contactless Payments and Wrist-Based Heart Rate, Black, 1.2" : Electronics](https://m.media-amazon.com/images/I/71SNvwyuaGL._AC_UF894,1000_QL80_.jpg)
Amazon.com: Garmin 010-01863-00 Forerunner 645, GPS Running Watch with Pay Contactless Payments and Wrist-Based Heart Rate, Black, 1.2" : Electronics
![Accuracy of elevation gain, the Garmin 645 Music vs. the Garmin Edge Touring Plus - Forerunner 645/645 M - Running/Multisport - Garmin Forums Accuracy of elevation gain, the Garmin 645 Music vs. the Garmin Edge Touring Plus - Forerunner 645/645 M - Running/Multisport - Garmin Forums](https://forums.garmin.com/resized-image/__size/320x240/__key/communityserver-discussions-components-files/124/20201002_5F00_210951.jpg)
Accuracy of elevation gain, the Garmin 645 Music vs. the Garmin Edge Touring Plus - Forerunner 645/645 M - Running/Multisport - Garmin Forums
![Amazon.com: Garmin 010-01863-00 Forerunner 645, GPS Running Watch with Pay Contactless Payments and Wrist-Based Heart Rate, Black, 1.2" : Electronics Amazon.com: Garmin 010-01863-00 Forerunner 645, GPS Running Watch with Pay Contactless Payments and Wrist-Based Heart Rate, Black, 1.2" : Electronics](https://m.media-amazon.com/images/I/31DmH1BFsML.jpg)