Hey there! I'm using an iPhone 6s with my Gear S3 Frontier on AT&T. The app is pretty buggy, and since it is the beta I'm thinking it's the reason that I can't activate my NumberSync. This is the first wearable I've purchased that has LTE functionality. The app asks you to go into your connections page and go to NumberSync... however that option is not there. Since the app is what downloads software on the S3 (right?) or at least certain parts of the software, that could be the problem. I think you might also have to be the main line on the account to receive the NumberSync feature. I don't remember where I read something like that, but tomorrow I will call AT&T to see what they say.
Other than that problem (will probably be fixed when the official app rolls out), I'm loving this thing! It looks great, and really works well. I hope the app selection gets better... I got stuck in the "my apps" section on the Gear S3 app, couldn't back out at all. Restarted the app, restarted my phone.... all to no avail. Had to reconnect my phone and watch through the whole process again by soft reseting the watch. Then another time, the phone and watch disconnected, and never reconnected. Tried everything, had to soft reset again. Regardless, even with all these problems, I'm loving it. What can you expect with a beta, leaked IPA?
Battery life is good, but with everything on (GPS, data, always on display, wifi, notifications, etc) I'll probably only get 1 day out of it. First day I played a lot with it, downloading apps, watchfaces, checking the games out, Google Maps, etc... Ha, didn't last very long.
I wish I was able to reply to texts that come from the phone, though. I wonder if the NumberSync will fix that, even if they're iMessages, hopefully it will just send as text...
I'm currently using:
◊ Brightness at 6
◊ Auto low brightness
◊ Screen timeout 15 seconds
◊ Bluetooth on
◊ Mobile Networks Auto on/off
◊ Wifi off
◊ Location off
◊ Notifications on
◊ Auto heart rate off
with that set up I've used up 30% of the battery in 12 hours. So, theoretically I'll get 1.67 days of battery at this rate. That it, if I don't use the apps, get barraged by notifications, or have/make phone calls. What is your secret to such great battery life? I might as well have every single thing on and charge it every night at this rate.