I'm just back from a week in Germany and Poland. In Germany I was on TMOB the entire time, mostly on LTE when I checked, in Poland I don't remember.

Had no problems with speed, but I was using the phone mostly for email and some web browsing. Also used it in tether mode to do some work on my laptop without paying the EU19.00 hotel charge. Also used it for many hours as a GPS when in the rental car. Never a hiccup.

What kind of LTE speeds while roaming?

With the standard (free) international data it's throttled to 128k which is n:pt too shabby for the price!

Yeah that wouldn't be too bad. I saw about .1 Mbps in Amsterdam and Italy on the T-Mobile SIM and also about that at MUC.

But at MUC it seemed even less responsive compared to the other locales.

I have an upcoming trip, a week split between Vienna and Prague. They both have decent prepaid options but would cost about 20 Euro each. Too much to spend for one week for faster speeds, unless the hotel Wifi is really bad.

Will see if T-Mobile is good enough for 2-3 days. My $10 a month data only Simple Choice plan may increase in price at the end of this year so I have to see how useful it is.

I pay for the unlimited speeds internationally ($100/month for 1G), but I never get LTE. Does anyone else have this problem? I am using a G2, so it should be able to grab LTE somewhere...but I ALWAYS get 3G, no matter WHAT country.

Ended up switching back to AT&T due to Int'l roaming issues in Asia with T-Mobile:

China Mobile's network is unusable. I was never able to get China Unicom to work (previous poster indicated success, but with some difficulty)

Paying for the 7-day package resulted in absolutely no benefit in Japan and China. No difference in speed in Japan and still completely unusable in China.

Basically unusable in Guam. Not fast enough for Google Maps.

China Unicom for some reason does timeout for roaming select for me on other SIM's as well. Don't know if this is an issue on their end. My Vodafone Germany SIM also has issues selecting them and holding the network so I doubt this is entirely a TMO issue and likely some issue China Unicom has in verifying roaming users

In Japan on no perf difference? How did you measure this and did you turn radio/off/on (airplane mode on/off) to see if this changed.

Are you sure your phone supports LTE bands in other countries?

I believe iphone and iPad, the latest ones, support the most LTE bands in each device.

I used my T-Mobile SIM in Guam a few weeks ago, and it was slow but usable.

Concur; if you use an Android phone; shortcut settings, "Phone Info" using "QuickShortcutMaker" or in dialer, dial *#*#4636#*#* and select "Phone Info"

On "set preferred network type" choose "LTE Only" If NO networks show up on a network scan in mobile settings then your device does NOT support LTE networks in the country you are presently in. This will show LTE networks in the list EVEN if you cannot authenticate/connect to them.

Have a question for those w/ the iPhone 6 (I'm in the right thread - it's a T-Mobile question too):

From what I understand, T-Mobile will unlock your phone for free after a 2 month probationary period.

In those countries where you data is slow, does anyone here just go buy a local SIM?

Also, is there any difference between an iPhone 6 bought via T-Mobile than an iPhone 6 bought via ATT? I ask because, with some phones, I read (paraphrasing): T-Mobile phones are made for different bands and don't have as wide a usability.

This scares me, as someone who just left ATT (w/ a grandfathered unlimited data plan) after 10 years.

I travel way too much to pay ATT's data fees...

Yes - for phones that are locked that is true. For the iphone 6 when purchased with a non-contract plan the phones are unlocked when customers receive them.The GSM iphone6 (models A1549 and A1522) supports these bands:

Notably absent is LTE band 12 which T-mobile uses but AT&T does n:eek:t. The fact that AT&T sells these as locked phones is the only difference. There are not currently many phones that support LTE band 12, by the way.

Actually buying a tmobile iphone 6 from tmobile comes locked. However, buying a tmobile iphone 6 from apple comes unlocked. Source: http://support.t-mobile.com/thread/78315

As for the band 12 hopefully its a software fix and not a hardware shortfall.

Thanks f:pr the update!