A:AnswerIt will initiate phone calls, and answer your phone but you'll have to use the 'handset' unless you are using headphones and a mic.
The watch does not work as a speakerphone. It has a mic for voice commands only, and does not have a speaker.
A:AnswerThe only difference is the diameter of the watch itself. The displays are the same an have the ability to show the same watch faces. I believe the 42mm watch uses the 20mm watch bands while the 46mm watch uses the 22mm bands. I have the 46mm watch and it looks great, but I also have larger wrists. I suggest going to the store if you can and trying each on to see which fits your wrist best.
A:AnswerThe second generation is officially supported by iOS; you do not need an Android device at all. All iPhones from the 5 up are supported by select Android Wear devices (including the Moto 360 second generation).
To check and see if your device is compatible, go to this site from your device:
https://www.android.com/wear/check/
A:AnswerIt is compatible with any Android phone running version 4.3 or higher, so unless you're running a custom ROM that puts you at an older version (or has other various issues) then it should work just fine.
A:AnswerI would bet engraving would be a problem. The back of the watch is used for charging and has a sensor for monitoring activity. I would not try to engrave it.
A:AnswerDepending on the model you buy, some come on leather bands others on silicone rubber bands and there are some which I understand are hard to get in the stainless steel and yes it is a 22 mm band.
A:AnswerNo, the watch can hear your voice, but it does not have a speaker. (you can reply to text messages with your voice). When the phone rings, you can swipe on the watch to answer or ignore, but you must use your phone to talk.
