Forerunner 235. This device has a wrist-based heart rate monitor and is compatible with ANT‍+ heart rate monitors. Setting Your Heart Rate Zones. Letting the Device Set Your Heart Rate Zones. Physiological Measurements. Turning Off the Wrist Heart Rate Monitor. I have the Forerunner 235 and have a question about the heart rate zones. I wonderded how it sets up the zones and found the following on Internet: While many people might think that having a heart rate monitor on their wrist means accuracy is a given, a lot of the data here is assumed from details you put in at the start. If that's too much, Garmin is also offering the similar Forerunner 230 that's bundled with an ANT+ heart rate strap for $299/£240. The Forerunner 230 runs up to 16 hours on a charge, while the By visual estimate from the graph of heart rate vs time the average would be about 60. Undeterred, I decided to sleep with my 235 striped to my wrist, and when I woke up my resting heart rate was 70! At the end of today, my average HR is 44, while resting HR is 70! One workaround would be to get a bluetooth capable heart rate monitor. One that is available is the Schosche optically based monitor and it sort of works. Problem is that in direct comparisons between optical monitors and the older Electrically based monitors every single optical monitor I've used fails to be as accurate. Today I wore the watch on a treadmill with HRM in the handles. This confirmed that the watch was seriously wrong for much of the run. My first 15 minutes was a warm up - easy pace and little effort. Treadmill said HR of 110-115 bpm. Watch said 145-155!! After about 15 minutes the watch then matched the treadmill - and how I felt! So, the Forerunner® 45 running watches come in a variety of colors and; include wrist-based heart rate monitoring and incident detection for select activities. oqiE.

garmin forerunner 230 heart rate monitor