Ease of use: 5/5
Operates seamlessly. Waterproof for swimming, has GPS. Access all your phone apps from the watch, even if it looks a little geeky to talk into a watch.
Efficacy: 4/5
I think it misses some step counts, which I use for medical-aid rewards points.
Usefulness: 5/5
I do move more and it reminds me to breathe deeply for mindfulness with a visual guide - a beautiful flower.
Improvements: 3/5
The screen cracked easily. Make a better screen!