Google’s Project Fi abroad. 6 surprises: 3 good and 3 bad.


I’ve been an AT&T mobile customer for many years and, I’ve been happy with the service.  But as I’ve traveled more often outside the country, I haven’t been happy with AT&T’s international pricing.  $9.95 for their International Day Pass doesn’t sound expensive until you go on a two week trip with multiple family members using the service.  Even if not everyone uses the service every day, the charges add up quickly.

In a previous post, I covered many options available to international travelers, along with my thoughts about how well each option fits my own circumstances.  If you have questions about why I didn’t buy an international hotspot device or why I don’t just pick up a sim each time I travel, please see this post:  International Roaming: AT&T / Verizon vs. Project Fi vs. T-Mobile vs. Sprint vs. SIMS vs. Hotspots.

To meet my needs, the best alternatives to AT&T seem to be T-Mobile or Google’s Project Fi.  T-Mobile includes free low-speed international data with most of their plans and charges only $5 per day for high speed roaming.  Project Fi includes high speed roaming with their one and only plan.  Partly for the allure of high speed roaming everywhere, and partly to appease the tech geek in me, I decided to try Project Fi.  See: International Roaming Next Steps (I’ll try Project Fi).

I initially tried Fi only within the US and I was happy with the service.  See: My Google Fi Experience So Far.

Now, I’ve had the opportunity to try Fi outside of the US (that was the whole point of it after all), and the verdict is in…

Fi Background

Project Fi is Google’s phone service.  Fi service must be activated with a Fi-compatible phone.  After activation, Fi is meant to be used only with compatible phones, but in practice it works with other phones, including iPhones (with some minor gotchas).

In the US, Fi primarily uses the T-Mobile network, but with a Fi compatible phone it is capable of actively switching among  3 networks to the one with the best service and speed in your current location.  With non-compatible phones (such as iPhones), you’re stuck with T-Mobile only.

With Fi, there is no additional charge for high speed international roaming.  You pay the same price regardless of whether you use the service within the US or abroad.

With Fi, there is no additional charge for additional data-only sims.  This is an awesome feature!  These can be placed into any unlocked phone or device that accepts sim cards and it enables high speed international roaming at no additional cost. Data used with data-only sims adds to your monthly data usage (and so can indirectly add cost if you wouldn’t reach your maximum otherwise).

Single person Fi pricing is as follows:

  • Calls & Texts: $20 (there is an extra fee to make calls internationally – 20 cents per minute – but this is easily circumvented by placing calls through Google Hangouts)
  • Data: $10 per GB (max $60 per billing cycle)
  • Per month total: $20 to $80 (Depending upon how much data is used)

My Fi Background

  • In order to activate Fi service, I bought a Moto G6 phone for only $199 and it came with $75 in Fi service at that time (that’s no longer available, but hopefully the $99 deal is still going on when you read this).
  • I ported my number from AT&T.  This means that the primary Fi sim is registered with my cellphone number.  One awesome side-effect of this is that Google Hangouts can use this number for calls and texts.  This means that I can make and accept calls and texts over the internet, for free, using my usual cellphone number.
  • I’ve been using the primary sim in my iPhone 7 Plus even though Google doesn’t support iPhone use.  Mostly this works very well.  The one issue I’ve had is that it has some limitations when texting with non iPhone users.  It turns out that the Google Hangouts app can be setup to handle all SMS and MMS messages, and it does so very well.  In other words, it’s hardly an inconvenience.
  • I keep an extra Fi data-only sim in the Moto G6, but I rarely use it at home.

International Use

My first chance to use Project Fi outside of the US was during a week long trip to London.  If I had stayed with AT&T, I could have used AT&T’s International Day Pass for $9.95 per day to use my phone service uninterrupted.  On this trip, that would have meant up to $80 (plus taxes and fees) in addition to the usual monthly AT&T plan charges.  Plus, my wife would have activated the International Day Pass for at least 3 of those days for another $30 in charges (plus taxes and fees).

If we assume that, on average, the Fi monthly cost is about the same as I previously payed AT&T monthly without international roaming, then I can say that Google Fi saved me over $110 on this one trip.

An astute reader may notice that I included my wife’s data roaming in the $110 in savings.  I wrote that she would have activated the International Day Pass for at least 3 of those days (if I was still on AT&T).  She is still on AT&T, but on this trip she didn’t activate the AT&T International Day Pass because she was able to use my Moto G6 phone as a very effective hotspot.  More on that below.

My Fi Experience: Surprises good and bad

Good: My iPhone connected immediately upon landing in London

Some readers had mentioned that it can take quite a while to find service when roaming.  That wasn’t the case in London… Not initially, anyway (see my Tube experience, below).

Bad: My iPhone didn’t work as a hotspot

This was a surprise because it works fine at home as a hotspot.  And, initially, it was a major blow to my plans.  I though I would have to switch the sim cards between my iPhone and Moto G6 in order to get hotspot use with the G6.  But then…

Good (very good): The Moto G6 worked as a hotspot with the data-only sim

This was a surprise because Google explicitly states that tethering from a data-only sim isn’t supported (found here).  The ability to use it as a hotspot was great because my wife was then able to carry around the Moto G6 whenever we went our own ways and she still had high speed data connectivity from her iPhone and laptop.  And I still had high speed data with my phone, I just couldn’t use it as a hotspot.

This solution worked great for us, but it would have been a problem if I had needed to connect my laptop to the internet through Fi service while my wife was out.  In this case, though, the hotel where I worked had excellent wifi.

In the future, it would be useful to have a second Fi compatible phone, or a laptop that accepts sim cards.  The latter would be ideal since I could then slip another Fi data-only sim into the laptop and forget about it.

Bad: My iPhone often had trouble reconnecting to service after riding the subway (aka: the Tube or the Underground)

On several occasions, I exited the Tube and couldn’t get data on my phone for a couple of minutes.  This wasn’t a big deal, but it was mildly frustrating.  I didn’t know whether the problem was with Project Fi or with my iPhone so I took the Moto G6 with me on a few Tube rides to see if the G6 acquired data faster than the iPhone.  As luck would have it, though, both phones re-acquired data instantly on those particular trips.

Good: Roaming data was fast

I’ll admit that I didn’t have much need for high speed data very often on this particular trip, but it was nice to have.  My phone showed LTE service most of the time (which is not surprising in a major city like London).  During the trip I received a call over WhatsApp (which uses the internet for calls), and it worked perfectly.  General browsing and maps were snappy too.  Truthfully, I probably would have been fine with T-Mobile’s much slower free roaming on this trip, but it was nice to know that high speed was available if I needed it.

Bad: The Moto G6 stopped hot-spotting one time

Mostly the G6 worked flawlessly as a hotspot.  One time, though, my wife tried to use her phone’s data while walking back to our hotel and she found that it wasn’t connected to the hotspot.  When she arrived back at the hotel I looked at the G6 and found that the hotspot was turned off.  Did it turn itself off somehow?  I don’t know.  The fix was simple: turn it back on.

Overall Impressions

While I’ve run into a few minor inconveniences, I’m still satisfied with the move to Project Fi even though I continue to use a non-supported iPhone as my primary phone.

That said, the truth is that most people would be better off with T-Mobile.  This is especially true for iPhone users. With T-Mobile, there’s no need to have a special phone, and there’s no need to specially configure the phone for everything to work correctly.  And, most of the time, T-Mobile’s low speed free data roaming is probably good enough for your needs.  When it’s not enough, simply fork over $5 to enable high speed roaming for 24 hours.

So, who is Fi good for?

  • Pixel Phone users: Anyone with a Fi compatible phone should consider the service.  Why not?
  • AT&T and Verizon customers: Ironically, I think it is also good for those who don’t want to switch to T-Mobile from AT&T or Verizon or whatever.  The reason: once you’ve activated service, you can pause it at any time.  So, if you buy a cheap Fi-compatible phone, you can use it as a very effective hotspot when traveling outside the country.  If you need data for more than 3 or 4 days, you’ll save money by resuming Fi service only when traveling vs. using AT&T’s or Verizon’s $10 day passes.  I think that this may be a cheaper and better roaming solution than buying a dedicated hotspot, but it will require carrying around a bigger device (the phone).
  • Those who spend lots of time outside of the US: T-Mobile’s free roaming isn’t intended to be used full time.  If you use their roaming feature continuously for about 2 months, you’re likely to get a message threatening to cut off your roaming altogether.  If there’s any similar limitation to Project Fi, I’m not aware of it.  UPDATE 1/25/2020: There have been many recent reports of Google Fi (previously named Project Fi) cutting people off for using the service for long periods of time outside of the US.
  • Techies who want the ultimate cheap family plan: I haven’t tried this, but it should work.  Setup just one family member with Project Fi and order a bunch of free data-only sims (you can order up to 9 of them).  Then, make sure everyone else’s phone is unlocked. Then, port each person’s primary phone number to Google Voice (except the person with Project Fi).  Then hand out the data-only sims and have each family member install Google Hangouts to use with their Google Voice phone number.  With Hangouts, they should be able to call and text just fine.  There are definitely some limitations to this plan (so I wouldn’t recommend this for most families), but it should effectively get everyone on a single phone plan with a maximum monthly cost of $80.  Note that Google says that it may cap data speeds once you exceed 6GB on a single person plan.  It’s unclear to what extent they do this in practice.

If you do decide to get Fi (despite my stating that most people would probably be better off with T-Mobile), use a friend referral.  After 30 days of service both you and your friend will get $20 Fi credit.  Here’s our referral link.

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[…] Google’s Project Fi abroad. 6 surprises: 3 good and 3 bad. […]


Google Fi has updated their iPhone support so you can now use the eSIM on the iPhone as well to activate Fi service.

G Key

I know the article says T-mobile will cut you off after 2 months and the writer wasn’t aware of such restrictions on Fi. I can tell you that I was cut off (data suspended) after two months and a friend of mine was cut off as well on a different google Fi account. Fi is not a solution that should be used for people who travel often outside of the United States. If you go on vacation twice a year outside of the states then it may be a good option. If you are like me and travel for work from country to country weeks at a time, it’s not a good option.

Dan Dascalescu

Beware that Google Fi can shut down your account without warning for “extended” use outside the US.


you should try Pond Mobile.
This is the best of the best! and they have best privacy and confidentiality

[…] can read more about Fi in this post Greg wrote last year. The short story in terms of service charges is that you pay $20 per month for […]

Patrick Horgan

Jumping on this late to note that Google Fi on their website say they support Apple phones officially now.


Fi is virtual phone service. It is patchwork of 100s of carriers. When your device loses signal, it then has to re-discover, connect, and re-authenticate. Your device doesn’t know what caused the disconnect. But Fi uses wifi as well, and you should have been able to connect in the London Underground via O2 and Virgin Mobile/3 wifi. I’m sure there is a solution to your lack of connection in the Underground.


So the international hotspot didn’t work with the regular sim but worked with the data only sim?


ahh makes sense now. thanks!


Wife and I just signed up for Fi a few days ago with new numbers. Can we port both of our permanent numbers to GV and then use Hangouts for texts/calls for free over data? I’m not sure if one of the phones would need a number associated with the main Fi account though, or if you can have hangouts use our main number while the SIM is from the new number.


For international hotspot, I use an unlocked Huawei mifi with a Fi data sim since it covers more international bands.

[…] Google’s Project Fi abroad. 6 surprises: 3 good and 3 bad. […]

[…] Google’s Project Fi abroad. 6 surprises: 3 good and 3 bad. […]

[…] Google’s Project Fi abroad. 6 surprises: 3 good and 3 bad. […]


Does Project Fi earn 5x on the Ink card?

[…] I’ve written a few posts about my recent experience with Fi. For my most recent report, please see: Google’s Project Fi abroad. 6 surprises: 3 good and 3 bad. […]


Today (Nov 28) only – “For any phone you purchase [from Google Fi], you’ll receive the same value back in your choice of travel gift cards, which you can spend on flights with Delta and Southwest or lodging with Airbnb and Alternatively, if you’d rather set up Google Fi on your current phone, you’ll earn $200 of Fi service credit when you sign up today.”

Now officially open to Apple and Android w/compatible (newer) phones.


Droid Life: Google’s Project Fi (Probably) Opens Up to Samsung, OnePlus, and….

FYI as Project Fi moves away from ‘Project’ status.


It’s true…google will make it “official” in the coming days


A couple of Fi things: I know you mentioned in your post that Hangouts uses the internet, just so it’s explicit for other readers though, this means that Hangouts is using your phone data at $10/gb. If you routinely use 6 gb/month, no problem, as the price for Fi is capped there, but if you don’t, you are incurring costs to use hangouts.

Second thing. I had one instance where Fi went bonkers in Argentina. Very stressful as I was waiting for an Uber when data service cut out, and I had to run up and down the street trying to connect to various WiFis so that I could see where the Uber was and make sure it hadn’t come and gone (it was taking me to the intercity bus terminal for an 18-hour ride and I did not leave enough time!). The solution was to restart the phone, which I did once I was in the terminal. Same problem happened again a few times in Argentina and restarting always solved it. Has never happened in any of the other international locations I’ve used Fi and this particular phone.

John L.

“this means that Hangouts is using your phone data at $10/gb”

You’re not wrong, but the actual rate at which you’d use the data is pretty minimal. A 60 minute phone call would consume about 80 MB, which would in turn would cost 80 cents. $10 would get you a little more than half an hour of talk time per day for a month, which is way more than enough for someone like myself (I typically don’t even spend half an hour on the phone for the entire month).


I’m thinking about switching back just for this reason! I made a number of calls in New Zealand using the phone connection while connected to strong WiFi signals. Fi routed my calls through cellular though rather than the WiFi signal. Usually I’d manually use Hangouts and never have this problem, but for some reason Hangouts kept telling me I didn’t have enough of a balance (previously I think it auto-billed my Fi account).
In the future, the only safe way seems to be airplane mode with WiFi enabled to avoid excessive phone charges.

michael johnson

Hangouts will always eat your data plan no matter any internet connection for a call of FI number.


Yup, both right 🙂 I was doing long conference calls from the car, and it didn’t feel negligible then! But if you’re not a power user of phone calls, it won’t matter for you. I do remember signing up to use hangouts on the phone during setup, and not getting a warning message about it, and being surprised at the extra $20/month or so I was incurring. Getting rid of hangouts fixed it, but now I don’t have fun things like being able to text from my gmail.

The only other issue I’ve had is often my data connection through the phone is stronger than WiFi, so I’ll shut WiFi off, and then when I get home forget to turn it back on. That eats a lot of $s too, but is entirely my fault!


Hi Dan, I live in Buenos Aires and have a few questions about your Google fi experience here.
What phone were you using when fi went bonkers? I have a Pixel 2 XL on T-Mobile and it generally works okay. Just slower data speeds are not that helpful. This leads to my second question..
What data speeds were you getting? I mean, did it generally feel quick?
BTW for those that are interested, I’ve been using Tmobile throughout Latin America for two years now with the T-Mobile One Plus plan for my wife and I; now living here permanently for 13 months. Our monthly bill comes out to about $85USD. This advertising “up to 256kbps” , that I tend to get much slower speeds in Peru and Argentina.
Not sure if it makes sense to switch.


Hi Antonio – I was on either a Nexus 5x or a Samsung Fi Moto – I forget when exactly the logic chip fried in the 5X and I had to have it replaced.
I did find the speeds to actually be quite good – no problem loading facebook or any other image-heavy apps while in BA.


I have AT&T but for the past year I have used Project Fi (by way of my Pixel 2 XL’s eSIM) to seamlessly receive calls and have data access whenever I leave the country. I have only taken a handful of international trips (every 3 months or so), and it has lined up nicely with the “pause service option”. Definitely way cheaper than using AT&T roaming… Haven’t yet been convinced to switch exclusively to Project Fi though, it just doesn’t check enough of the boxes for constant domestic use…


Thanks for the detailed report – I would be curious to know how it works in other countries too. One of my friends had trouble with his data only SIM in his iPad mini and we aren’t sure of the cause. I did google Project Fi in Japan and stumbled across some problems people had, although maybe that was device dependent too? When in doubt, it seems good to have multiple devices as a backup as different models will support different bands. Next time I will let him borrow my Nexus 6P.


We’ve used Google Project Fi in 30+ countries over two years with absolutely no issues over the past 12-18 months. There were a few initially, but those were likely user error as we got used to the plan. We use for hotspots, data and wifi calling. No problems at all. Have no plans to ever go back.


Greg, I converted from Apple to Android (Samsung) a year ago. This last round of price hikes on the iphones just reinforced my decision. Like leaving any cult, its painful at first. but so worthwhile in the long run. Put the free Fi data sim in your iphone on a temporary basis. Use them both for a few months, then transition. Nick should be able to ferret a deal out for the Pixel 3 for you.


My wife and I have had Google fi for 2 years now. Great service and we’ve been in 20 countries with it. We live near the Canadian border and don’t have to shut our phone off to cross anymore. The service is very inexpensive compared to Verizon. Extremely happy with it.


About to test our new T-mobile service in Europe this week. As long as it can give me maps and texting, I should survive.


Is there a reason not to use Whatsapp for texting and free internet calls?


No, except with Hangouts, the other person on the line won’t need the WhatsApp app to receive calls from you. Good to have backup measures.


Thank you for sharing your experience. Google Fi does appear to be an useful service for att and Verizon customers. I have been a t-mobile customer for years. I travel to less developed countries a lot – Africa, Central and South America and Asia. T-mobile has served my needs very well in almost all countries. The 3G network works fine for google maps. WhatsApp calls are little spotty. The best feature is free wi-fi calling – you can call US numbers as much as you want from your hotel. Free texting so you can keep in touch with your travel partner. Happy travels.


^this. Both TMobile and Sprint offer unlimited free 3G data and unlimited texts worldwide, and they connect basically before you step off the plane. I’m not sure where the value-added for fi is…..


Just signed up for this. Can I forward my Verizon phone number to the Moto phone when I’m overseas so I receive my calls and texts without having to port my number over? I know I can forward calls but am not sure about texts.


Can you use a Project Fi SIM with an iPhone? I know one can (and I have) as data-only with an iPad. Thanks for the good article!


I’m confused as to why you need an extra data-only sim for international. Doesn’t the sim that you use for calls and texts work overseas too?