Hi all. I owned the first Series of Apple Watch when it released for around a year or so. I thought it was okay, but ended up selling it on. The thing that's attracting me towards a new one is GPS. I plan to use the watch for running outside at home, and on the treadmill offshore at work. Leaving my phone and just using the watch alone. Will the non cellular version of the new Apple Watch be sufficient for what I want to use it for? With the first Series I found I always took my phone out with me running, I don't want to do that! Thanks in advance.