For me as a Timex fan there was no question whether Garmin Polar etc. I had only the problem of the price limits. The Global Trainer is a bit large, but while wearing very light and does not interfere. Since I have 1.0 diopters I was pleased the display is as good adjustable and readable. The software is super fast and easy to understand. GPS works after a firmware update super reliable. With the Timex Device Agent sin all settings also to do on Mac.
I am really pleased a great part at a great price.