Yes. If you have the particular feature turned on (and I think it is by default) you can take a screen shot by swiping the edge of your hand across the screen

Yes, you can enable the gesture action and do a "palm swipe" to take a screen shot.

yes - hit the Home button and the Power button at the same time

Yes.
Same as S3-hold lock & home button simultaneously

Yes

Yes, hold bottom center button and top right button simultaneously

Yes, via pressing the power and down volume button.

They make you sign up for another 2 year minimum contract with your phone carrier service.

it is a renewal of your 2 year commitment to stay an AT&T customer however ask your local best buy about the NXT program as it is a much better and less expensive way to buy the phone that wont require a contract renewal

when you sign a contract with your carrier agreeing to extend your service period, if you terminate this contract you must pay a fee

They add 2 more years to your existing contract.

Contact extension in regards to the contract term, means being renewed or more length added to your current contract. In short "more time"

Contract extension means an increase in the length of time you promise to continue using your current service provider. This also means additional time you must continue to pay for the service, even if you change your mind later before your contract is finished. You should ask your service provider for a detailed explanation of what this means since there may be extra details you may not be aware of. It is like signing a lease for an apartment. Find a smart friend to explain it to you if you don't understand since a contract extension can cost thousands of dollars over two years.

Yes, I used it in Canada last month without any trouble. You have to watch out for high data roaming fees, but that is the same no matter which phone you get.

As I understand, using a phone internationally depends on your cell provider and a data plan that they would have available. I have AT&T, I have a plan that covers Canada and the USA. It has a discount for phone calls to and from Canada. When I arise in Canada I am switched over to the Rodgers Network System, then back to AT&T when I come back to the states. They also have other international packages to chose from. So check with your cell provider to see what is available.

Just got back from a week in Mazatlan, where I lived a dream for four years early this millennium, and the phone worked flawlessly.

I love this s5 phone very durable a lot better than I phone plus I love using it with my smart tv

Only phone that are capable of operating in the GSM 900 and 1800 bands can be used overseas. This phone does not use GSM.

tax is included

because best buy has a contract through at&t but if you go through at&t the middle man is missing

I don't mind paying the extra money for great quality service and also I received a $10 Best Buy Gift Card as well.

as you can see now the price has evened out and now is $199.99

yes

You can buy a warranty through Best Buy.

I believe Samsung phones carry a one year manufacturer's warranty.

No. I purchased mine at a Best Buy Black Friday sale for $1 and wanted to buy one for my son, and they wouldn't let me take it out of the store without activation. I went ahead and activated the phone & gave it to my son right away, so he could make decisions on the 2 week option to return it, or buy a protection plan for it.
He is absolutely thrilled with the phone and I highly recommend it.

future dated activations are difficult since they have so many restrictions the only way I can think of is as long as they all have 4g LTE devices right now then the new phone uses the same sim card. so when they upgrade your phones tell them to select keep current sim card option which will keep their old phones activated until you put there old sims in these new ones on Christmas morning. all you would need to do is take the little orange cards out of their old phones and place them in the new phones near the battery on Christmas morning and they will automatically activate once you do this. however if they don't use the same sim type you wont be able to do this so bring your phones into your local best buy and ask them about this

I believe you can go to your ATT acct online and turn the phones off manually. Then when you are ready to reactivate then just signed into your ATT acct and turn them back on. You can also control the amount of data they use this way.