Become a MacRumors Supporter for $50/year with no ads, ability to filter front page stories, and private forums.

blairh

macrumors 603
Original poster
Dec 11, 2007
6,110
4,821
Currently with AT&T. Unlocked and paid off my iPhone 6 Plus. Will I get the same coverage and speed if I use this iPhone with T-Mobile versus one of their iPhone's? Thanks.
 
In general the answer to that question is dependent on so many factors it's going to be very difficult to answer.

However, if all you want to know is whether an unlocked AT&T phone will have full functionality on T-Mobile's network; the answer is Yes.
 
You should. If I remember correctly, the T-Mobile and AT&T models have the same bands. When I was at the Apple Store camping out for my 6, I remember that the recommended advice was that if the T-Mobile (my carrier) phones sold out, you could purchase an AT&T model at full price and receive the same coverage on T-Mobile's network.
 
You will be missing band 12.
Depending if it's rolled out in your area it's good to have.
I'm on tmobile with an unlocked AT&T 6 plus and I'm doing fine.
No clue if my town/work use that band. I'm in a suburb of Boston.
 
No clue if my town/work use that band. I'm in a suburb of Boston.

I believe they have some kind of map that shows areas with band 12 coverage.
It supposed to help with building signal penetration.
There is a few buildings that become dead zones where AT&T had 1-2 bars.
But thank god for wifi calling that makes up for that.
 
I believe they have some kind of map that shows areas with band 12 coverage.
It supposed to help with building signal penetration.
There is a few buildings that become dead zones where AT&T had 1-2 bars.
But thank god for wifi calling that makes up for that.
Just did some research. I'm reluctant now to use my iPhone with T-Mobile.
 
Straight from Apple.com

Cellular and Wireless
Model A1633*
Model A1634*

LTE (Bands 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 27, 28, 29, 30)
TD-LTE (Bands 38, 39, 40, 41)
TD-SCDMA 1900 (F), 2000 (A)
UMTS/HSPA+/DC-HSDPA (850, 900, 1700/2100, 1900, 2100 MHz)
CDMA EV-DO Rev. A (800, 1700/2100, 1900, 2100 MHz)
GSM/EDGE (850, 900, 1800, 1900 MHz)

Model A1688*
Model A1687*

LTE (Bands 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 27, 28, 29)
TD-LTE (Bands 38, 39, 40, 41)
TD-SCDMA 1900 (F), 2000 (A)
CDMA EV-DO Rev. A (800, 1700/2100, 1900, 2100 MHz)
UMTS/HSPA+/DC-HSDPA (850, 900, 1700/2100, 1900, 2100 MHz)
GSM/EDGE (850, 900, 1800, 1900 MHz)

All models

802.11a/b/g/n/ac Wi‑Fi with MIMO
Bluetooth 4.2 wireless technology
NFC

Looks like the only difference on the AT&T models are the extra LTE 30 band. There should be no issue using the phone on T-Mobile other than T-Mobile's Network performance and coverage will vary depending on where you live and travel.
 
Straight from Apple.com

Cellular and Wireless
Model A1633*
Model A1634*

Stop putting out wrong info and read the thread again.
AT&T iphone 6 plus.
You're posting specs and info about 6S models.
The AT&T iphone 6 and 6 plus are missing Tmobiles band 12.
Read this and educate yourself.
https://www.techwalls.com/differences-between-iphone-6-6-plus-models/
http://www.t-mobile.com/optional-services/coverage-phones-700.html
https://support.t-mobile.com/thread/77730?start=0&tstart=0
http://www.spectrumgateway.com/compatible-phones
http://www.spectrumgateway.com/t-mobile-700a-spectrum
 
Last edited:
Stop putting out wrong info and read the thread again.
AT&T iphone 6 plus.
You're posting specs and info about 6S models.
The AT&T iphone 6 and 6 plus are missing Tmobiles band 12.
Read this and educate yourself.
https://www.techwalls.com/differences-between-iphone-6-6-plus-models/
http://www.t-mobile.com/optional-services/coverage-phones-700.html
https://support.t-mobile.com/thread/77730?start=0&tstart=0
http://www.spectrumgateway.com/compatible-phones
http://www.spectrumgateway.com/t-mobile-700a-spectrum
Ah yes, read that wrong. Thought it was the s. I stand corrected.
 
  • Like
Reactions: Applejuiced
Register on MacRumors! This sidebar will go away, and you'll see fewer ads.