A:Answerno, it only counts your steps and calories...which I believe both to be way off and not very accurate. I also wear a Wii U Fit meter on my hip and the Health S is usually about twice as high in the step counts.
A:Answeryes, it will work with the S4, but you may have to update your phone to a later version of Android (4.2.2 I think) for it to be compatible, I know that Sprint has released the update for my phone a couple of months ago and I think all carriers should have an update out by now.
A:AnswerIt has a find feature that turns your ringer to max and can be used on the watch to find your phone and also phone to find watch, but if you mean to use it like an intercom then the answer is no. It links and acts more like a blue tooth headset and not an independent phone.
A:Answerif items is being shipped via standard shipping and may take 10-12 days then 15 days calculation from date of purchase (as mentioned in return policy) is not justified.
A:AnswerThe Galaxy gear will work with the Galaxy S4 Active (AT&T) because the Samsung Gear connects via Bluetooth effortlessly.
I also Highly Recommend the Plantronics Voyager Edge Bluetooth that allows you to connect up to 5 devices, NFC for your Galaxy S4 Active, and Bluetooth for the Galaxy Gear. I purchased the Voyager Edge because when making or receiving Personal calls from the Gear 2 everybody can hear your conversation and I wanted to be discrete.