Given the thread you posted in (T Mobile Global data coverage) your question is somewhat ambiguous. Are you asking about tethering to Apple TV while roaming internationally?

It would be less than $10. Here's my example, which was slightly more than 1GB total usage.

I used less than 1GB last month domestically. That cost me $10, but credited the unused data. I then used enough overseas to bring it back above 1GB total. Here's how the billing worked.

Unused dataCredit for 0.369 GB at $10/GB . ($3.69)

Then I used some data in Panama and Canada:
Data usage
Panama
0.378 GB at $10.00/GB
Jun 12 75.4 MB
Jun 13 15.8 MB
Jun 14 108.9 MB
Jun 15 89.6 MB
Jun 16 22.9 MB
Jun 17 13.5 MB
Jun 18 4.4 MB
Jun 19 56.2 MB
$3.77
Canada
0.031 GB at $10.00/GB
Jun 20 29.9 MB
Jun 21 1.5 MB
$0.31



So three countries, including the US.
Data usage: 1GB - .369GB + .377GB + .31GB = 1.318GB.
Charges: $10.00 - 3.69 + 3.77 + .31 = $10.32

I was also billed for $20 (basic service), $10.38 (1/24 of the price of the Nexus 5x), $2.22 regulatory fees and taxes (this would be more, but we have no sales tax here) and $3.40 for 17 minutes of calls made while in Panama. There were other calls, but they occurred on WiFi and did not incur charges.

Total for the month ? about $46.

Hmmm... After activation, did you try that SIM in a phone? Worth a shot - you might end up with a data-phone that doesn't do voice.

I can sort of answer the question regarding a DATA ONLY SIM, I have a Thinkpad with a Sierra Wireless Modem built-in and T-Mobile was able to setup a "MI" line which according to the manager is voice barred, except for 911.

The big question is if it will have free international DATA at any speed 2G, 3G, 4G, or LTE.

He was unsure and the rep I spoke with on the phone wanted to say yes, but was not 100% and did not want to say one thing and in fact it was another. She said she would research it and get back with me in 24h and it is 3 weeks later and I have not heard a word from her (didn't think that I was going to).

Haven't tried to use the DATA Modem in my laptop overseas and have no International Travel planned for a bit, so won't be able to try it either. Added to that, I do not even know how to send/receive a text message on my laptop, so I would not have any way to know if T-Mobile were to send me a text message with International DATA Rates.

I can answer this question with 100% certainty. If the DATA only SIM is on one of the qualifying Simple Choice plans, you get international data just like a phone plan. And right now that free international data would be high speed because that is the current promotion.

I know this because I have 2 iPads with DATA only SIM's and each with the 1GB Simple Choice North America plans. I have used free high speed data in Canada & Mexico as well as 2G in UK (before the current summer promo started).

Obviously, the MI Data on Demand "Free Data for Life" plan is not included in this since it's not a paid plan, which is required.

Hope that helps!

FYI: scott from milevalue just posted a review: http://www.milevalue.com/review-of-f...european-data/

Returned from my trip to Greece.

Most of the time Cosmote seemed to have better coverage but in some cities, especially in hotels, Cosmote speeds were very inconsistent. In Chania, I always got 4 or 5 bars on LTE but the speeds would be all over the place, from less than 1 Mbps to like well over 40 Mbps on speed tests.

This forced me to switch carriers to Vodafone in a couple of places and the combo provided good speeds in most situations. Tried Wind in a couple of places but never could get coverage.

I took advantage of the speeds to stream and download shows to my iPad as well as keep the apps. updated on several devices.

Would be great if T Mobile ran more of these promotions or permanently offered these high speeds.

Oh and on the way back, had a one hour layover in Zurich where Sunstar LTE gave over 68 Mbps up and under 2Mbps down.

Having the exact same experience in Macau right now, except with iPhone SE.

You do know you can turn off ANY chargeable roaming for data on your T-Mobile account - go to profile, blocking and set: Block charge international roaming to "ON". This will NOT affect the ability to get free data and this simply turns off those countries that are NOT in Simple Choice roaming.

Also there is ZERO chance of picking the wrong network in a Simple Roaming country and getting charged. Simple Choice plans will NOT allow data roaming to be active where T-Mobile doesn't have a roaming agreement for inclusive data. Meaning if the country has 3 networks and only 2 work for Simple Choice roaming, the 3rd one may only work for SMS and Voice but will get NO data roaming.

CAVEAT: If near a border, ensure you are roaming on a carrier in the simple roaming country vs an adjacent country that may not have Simple Roaming. Reports of users in Israel near the Jordan border picking up Jordanian networks and getting charges $1000's of dollars, hence why the suggest above to turn off chargeable roaming is essential

T-Mobile has put all this in writing - FREE roaming in the xxx number of countries. As long as you are on a network in those countries you will not be charged. Now granted you roam along a border into another country NOT part of simple roaming then that is you as a user not taking that into account.

Edited the FAQ to add a warning to turn on block chargeable roaming - important in areas where you may by accident roam onto adjacent country networks (e.g. Israel in border areas) and some SEA/South East Asia countries near border areas

Also clarified what is needed for LTE in China (TD-LTE enabled device and which bands are needed)

EDIT 8/5: Updated Ireland to reflect O2 is gone (merged with 3) and that Meteor does work.

Note: getting reports of Vodafone NOT working in the UK - this is NOT the case - may be a specific authentication issue but it is working and I have verified this with a user today.

Stgermainparis:
Hope you dont mind me asking but we are travelling to the UK in a couple weeks and will have about 7 days in the UK with this 4G LTE data and then about 14 days of 2G data...
first time with Tmobile and roaming without planning on changing our sim cards too... usually we have used our O2 sims but thats just a pain to keep up with and have to "top up" all the time and then lose money when you dont use it all.

For the iPhone5s you have - did you have to change any APN settings?
(what version of iOS are you running? 9.x?)

thanks in advance!

not sure where my last post went... got a brief window saying it was going up for moderation...?

anyways - to those who have traveled to the UK and been able to get the 4G LTE to work, or even the 2G to work...

Did you have to change any APN settings?
What phone/device were you using?
(if Apple - what version iOS?)

thanks in advance!

I went to the UK, flipped on roaming, searched for networks and picked a working one and off I went. Nothing crazy needed doing. Works great. (Was on Android Nexus 5)

I did not change any settings whatsoever nor did my son with his 5s. I don't have phone with me but I can say I had not updated the iOS since last year. Prob August.

Thx to you both, travelingsperry and stgermainparis

Heading to Italy, then ultimately to Greece. I have a Project Fi phone, Ipad mini with Tmo 6 gb, Toggle, and Piranha. The Toggle and Piranha are left overs from the past 3 years. I intend to do some sampling and report back.

T-Mobile
 

I have just changed my mobile carrier to T-Mobile since it gives me free data and text in 120 countries.

I will be going to England and Italy. Can someone with first hand experience comment on T-Mobile's services in those countries?

Also, while I am in England, when my friend reply to my text (presumably it will be to my US number) will it cost them?

I'm not sure about cell phone plans in the UK, but if it costs them money to send a text message to a US number, then yes.