Find helpful customer reviews and review ratings for Garmin Fenix 3 HR, Gray at Amazon.com. Read honest and unbiased product reviews from our users. Amazon.com: Customer reviews: Garmin Fenix 3 HR, Gray The Fenix 3 HR was released by Garmin in 2015 and is distinguishable from the Fenix 3 model by being made of metal instead of plastic and the incorporation of the optical heart rate sensor. The Fenix 3 HR model has a 3 cm display with 218x 218 resolution and weighs approximately 86.1 grams. This model also boasts a 16 hour battery life in GPS The Garmin Fenix 3 HR is a strong contender in the category of GPS enabled watches that include navigational components like waypoint saving and course setting. With the longest battery life of the models we tested and a seemingly endless amount of customization this multi-sport activity tracking watch really impressed our testers. Wearing the Device and Heart Rate. Wear the fēnix® 3 device above your wrist bone. NOTE: The device should be snug but comfortable, and it should not move while running or exercising. NOTE: The heart rate sensor is located on the back of the device. See Tips for Erratic Heart Rate Data for more information about wrist-based heart rate. It is compatible with a range of iOS devices such as iPhones, iPads and the iPod Touch. Is compatible with Android. Garmin Fenix 3 HR. Garmin Fenix 5 Plus. It is compatible with a range of Android devices such as smartphones and tablets. supports Wi-Fi. Garmin Fenix 3 HR. Product Description. Whether you're snowboarding, swimming, or hiking through the backcountry, you can rely on the Garmin Fenix 3 HR GPS watch to keep up and keep track. This smart multisport training GPS watch combines precision navigation, smartwatch functionality, heart rate technology, and activity tracking features in a sleek, rugged The other way.You can watch the red and black line connecting to board by soldering at 0:46.Pick up the lines from old battery, and solder to new one's conne The significant differences are that: (a) Apple Watch can connect to cellular networks to make calls, send messages, and overall internet connectivity everywhere without a phone, and (b) Garmin can connect to various training sensors using ANT+. Fenix 6X talks to my mountain bike over ANT+ to measure power and cadence. ketB.