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Ok so now I've read this entire thread and have not found a clear answer to my quest:
I want an unlocked iPhone 6s Plus that I can use during trips to Europe using a variety of SIM chips. Here's where it gets muddy:

I would also want this phone to replace the 5s on my grandfathered AT&T account without changing contract nor having my new phone locked. The 5s is paid for as my 2 year contract was recently completed

Can this be easily accomplished?

i would buy the att iphone 6s plus full price from apple. then when you get it, restore it via itunes on your computer. it should say congratulations your phone is unlocked. i bought an att iphone 6s from apple full price and did this and my phone is now unlocked. and i have an active att account.
 
If you bought full price AT&T phone from apple store, you don't need to restore it to unlock it, it comes unlocked, I bought AT&T phone from apple store and started using it with my T-Mobile sim card without any itune restore.
 
The sim tool is nothing to laugh at. If you don't have the perfect size, you can damage the sim tray hole, making the tray start peeling, chip it, etc. Of course, you have to be careful with the right tool too, but it's good to have the right one.
 
I have an unlocked 6 for which I can buy cheap sims throughout Europe - I haven't seen a list of companies that are onboard with the sim-free 6s - I only saw a page that showed 3 companies, I'm going to hold off with the enthusiasm for this move by Apple.
 
What is the significance of band 30 and why should I be concerned with it when buying a sim free phone?

It'll only matter if you have AT&T, unlike last year when the SIM-free phone actually included extra worldwide LTE bands.
 
But how do we know sim free is the 1633? One poster said he put it in his shopping bag and showed this part number MKR32LL/A, which is the "T-mobile" model
Part number is probably the same for both. Model number for T-Mobile is A1688. At least, mine is.
 
What is the significance of band 30 and why should I be concerned with it when buying a sim free phone?

Because it is the future with AT&T. For the high price I pay for these phone I want all the bands. Future proof for me I keep my phone a good few years. I can use any prepaid service I want including Verizon and Sprint with no hassle because sim free will be on their phone list.
 
So you bought full price phone from AT&T and are still saddled with their high prices. Doesn't make sense. I went from paying $110.00 for two phones with a 2 year contract (with AT&T) to $40 for two phones with no contract with Cricket. I am using the same iPhone 5s. I switched once my contract was over. With Cricket, I am getting unlimited voice and text and 2.5GB of data for each line. I am part of a 5 line group save even though I just have two lines.

The quality of service across the US with Cricket is not that great compared to ATT.
 
Yes! The one thing you get with the SIM free version is the included SIM removal tool (Apple doesn't add that with the Carrier SIM'ed, although unlocked, versions here in the U.S.) - worthless, but I want it.

Apple must be doing alot better with production this time, we didn't get SIM free here in the states until after the new year for the 6 / 6 plus.

Sorry to nit pick, but "alot" is not a word; it's "a lot". You can "allot" something, but that's a different word.

I see this mistake, a lot, and it irks me, as an Englishman.
 
If you buy a carrier phone at full price, doesn't come unlocked already ?
It does, but the SIM free model is supposed to show up on Verizon and Sprint's databases, which should make it easier to open up an account with them. If you are just upgrading from an iPhone 6 (or 5S in the case of Verizon) then you can just SIM swap, but if you open a new account with those carriers, they want an IMEI. If it doesn't show up on their database, the associates often don't know what to do, and sometimes neither do the reps at corporate.
 
I'm just curious if they are offering the Apple Upgrade Program at the retail stores for the SIM-free model. If so, that could be another reason it came sooner than last year, since there are a lot of regional CDMA carriers who offer the iPhone 6S and who are getting the A1633/A1634. On a side note, that could be why those CDMA carriers got the "AT&T" version instead of the other version, even though they have no need for Band 30.
 
I'm just curious if they are offering the Apple Upgrade Program at the retail stores for the SIM-free model. If so, that could be another reason it came sooner than last year, since there are a lot of regional CDMA carriers who offer the iPhone 6S and who are getting the A1633/A1634. On a side note, that could be why those CDMA carriers got the "AT&T" version instead of the other version, even though they have no need for Band 30.

The person helping me was telling me that the SIM-free is basically same as the other models with regards to it being unlocked and brought up the Upgrade Program and made it seem like I'd have to buy one of the other models to use it, but I didn't ask that question directly.
 
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