“The sheer number of features the 955 solar watch can support is just bananas,” raved one tester, a professional ultra-running coach. It boasts a staggering seven clock features, 15 health monitoring features,19 daily smart features, six safety and tracking features, and 54 (yep, 54) training and analysis features. Highlights include access to full-color built-in maps and a nuanced training readiness score. All of this, and the watch can still track in GPS mode for 49 hours on a single charge thanks to its ability to harness solar energy.