Let me start by saying that if you buy this watch and you don't see the PulseOx info or the GPS isn't working, just uninstall the app and reinstall should install. After that it should work. This was the only problem I had and I was looking for a solution. Apparently this is a common thing. I love this watch, it's multifunctional and looks great. I had iWatch 5, this watch is much better than my iWatch. The size of the dial is perfect, the strap is comfortable, synchronization is easy. You'll also likely want the Garmin Connect IQ app, which is essentially a store for your watch. There you will find different faces, applications and widgets. If you need a smart watch, this one will easily meet your needs. I really like this watch a lot.
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