Suunto - Suunto 9 Peak

As an owner of 9 Peak, Vertical 1 and Race 2, buy Garmin without hesitation.

I upgraded 2 weeks ago from Suunto 9 to Race S. Late 40s male. Swimrunner. (Observer, Ambit 2, 9, Race S) I am really enjoying the upgrade, and the price made it feel like I stole something. As for your questions: 1. HR accuracy: This was a knock against the 9. The race s is a major improvement on accuracy. I think one thing that helps is that is fits better against my wrist, but they also added in more sensors. 2. How decent is sleep tracking. Very good so far. Measures stages, HR (avg, min), HRV blood O2, "quality" 3. strength training: good with my HR although I don't find HR tracking for strength training to be all that important. 4. Is the 'resources' metric useful as a measure of daily energy? Unlike Garmin, there will be some adjustments, but once you become familiar with TSS, CTL, ATL, and TSB, it becomes helpful for my periodization training. The nice thing is that there are a lot of other apps and programs that use these metrics.

My Suunto 9 works fine. Watches will only pick up GPs when they come out of the water (eg every other stroke of freestyle). Breast stroke, the watch remains underwater. So, the watch is basically recording a breadcrumb trail, which isn't always accurate. Sometimes, cloud cover and rain will also affect the accuracy.

Suunto 9 - works very well but the swim pace is always slower than I think it should be...