Battery life also seems very good. I run and cycle outdoors 3 times a week, for an hour in total, each time with the GPS on, and the battery would easily last for 10 days. For the past 3 weeks or so, I've been mainly indoors and the battery is currently sitting at 25% since then, running on the treadmill for about 40min every day, 5 days a week. I’ve been testing the Fenix 7 Pro, which has a battery life of 22 days in smartwatch mode (or 73 hours with GPS) provided you expose the solar-charging screen to three hours of sunlight a day Obvious Fenix alternatives are the Coros Vertix 2 ($699/£599) with its 140 hour GPS battery life, and the Polar Grit X Pro ($429/£379). Garmin Fenix 7X: Design and touchscreen The Fenix 7X, just The widget displays your current heart rate in beats per minute (bpm), your resting heart rate for today, and a graph of your heart rate. From the clock, select DOWN. Select START to view your average resting heart rate values for the last 7 days. Wrist-based Heart Rate. The Garmin Fenix 3, like many Garmin products, comes with a tiny little instruction booklet. The downloadable PDF covers the headlines and how to use your device in just enough detail, but most of the features on technical devices nowadays you really get to learn (things like the widgets and the apps) when you start to play. I have a Fenix 6s and the battery life is around 7-8 days with around 45 mins of activity recording everyday. What I did To optimize your battery life. -auto power saving mode while sleeping (keep only HR on, deactivate everything else) +2 days -deactivate pulse ox all the time (Battery drain ++) +2 days -remove HR on watch face or use watch The improved GPS tracking and longer battery life knocks the price up to $230 and out of our sub-200 budget range, but it’s nevertheless a step up in quality if you’re willing to let go of a Garmin states a five-day battery life, which is generally on the money and includes full HR monitoring and a few tracked runs. It slightly edges the Fitbit Charge HR, although both are on a par. Up to 8 hr. Always on display mode. Up to 2 days. Note that the Garmin Venu 2 also has a smaller variant, the Garmin Venu 2S. This watch is similar to the original, but has a slightly worse battery. In smartwatch mode, it will last 10 days. In GPS mode, you have a battery life of 19 hours. Hole Information. Because pin locations change, the device calculates the distance to the front, middle, and back of the green, but not the actual pin location. Current hole number. Distance to the back of the green. Distance to the middle of the green. Distance to the front of the green. acfD.