Yes. However you may need to subscribe to the Call Forwarding service of your telco. If you are on Maxis you can get a multim 1 line where you have the same number and can swap between your watch or phone.

Yes, in which case I believe you need to get a Call Forwarding service.

Yes you can use it standalone with a SIM, it is a phone anyway.

However, if you want to leave your main phone at home and just use the watch and receive calls from your phone, then you need Call Forwarding activated.

Since I don't use this feature due to my multisim, I am quite certain you need to subscribe to Call Forwarding service from your telco.

The XDA Gear S thread actually has a long discussion on this, but I didn't follow since they are mainly talking about US telcos, and also I don't use this scenario.

The scenarios are as follow:

1. Connect via Bluetooth
Can make calls and receive from the MAIN phone, IF you set "Auto Connect". Can receive notifications from main phone.

2. Connect via Bluetooth
IF set to Mobile Network Always On, then the watch is a fully separate phone, but you can receive notifications from main phone, and make and receive sms on watch separately.

3. Remotely connected
Same as 2 above
3. Not connected
Watch and phone are separate devices, no notifications from phone.

I believe most people are using scenario 1.

I use 2 and 3 most of the time, sometimes 1.

If you do not intend to forwards calls from the phone, then I don't think you need to subscribe to call forwarding.

I purchased note 4 on the launched date, after one month then gear s available in store.
All you need to do is download galaxy life app, and then show them the redeem code for 20% discount. thats all!

Can anyone please kindly states where you successfully claim the 20% discount? I think it will help people alot who wish to buy the gear s with 20% discount.