The Tattoo IssueFirst read this article at iMore for more info on the issue.
In summary tattoos can interfere with the green light used for heart rate and security. My watch shipped the day this information started being discussed. I was worried that the issue would be bad enough for me to have to return the watch. I probably would have just turned off several features and kept it. But, I really did not want to have to make that choice.
For me, the tattoo issue seems to be no big deal. It could be because of the inks my artist used, or more likely because of where the watch sits on my arm. There is a patch of yellow right where the watch naturally sits on my arm.
I have had no issues that I think were caused by my tattoos. It is possible that it is detecting my heart rate incorrectly. But, it seems consistent with values I have gotten from other sources.
I have had my watch lock while on my wrist twice. The first time was while using the lawn mower. Sweat was involved and I think the watch may have been too loose. The second time was while sitting idle on the couch, but I had my arm in a weird position and the watch was being pushed away from my arm.
Pairing was easy, I chose to activate all my apps, and this may have been a mistake. The first 20 min with the watch were slow and irritating. I think the phone was copying info to the watch, but there was no clear indication that this was happening. I got frustrated with things not working and left it alone for about an hour. The next time I tried to use it everything worked great. The setup process needs some work.
Everyday useI have only had the watch for one weekend, so this can't really be a full review. However I have found the following things to be true:
It is a great fitness tracker.
I need to calibrate it better for my stride. But so far the way it tracks 'Active Calories' and reminds me to be more active is really helpful.
It is really good at notifications.
It is going to take some time to configure the correct set of notifications I want to go to the watch. I only want 'Important' items to show up there. I only want sound in some rare cases. etc... I will be tweaking these things until I find the right balance. Letting everything through would be awful.