Tello vs Google Fi for Expats: Which US Phone Plan Actually Works From Latin America

If you’re moving to or already living in Latin America, the phone question usually isn’t “which carrier is best” — it’s “how do I keep a working US number for banking, 2FA, and family without paying a full US phone bill for a line I’m barely using.” Google Fi and Tello answer that question very differently, and most comparisons of the two don’t actually explain the part that matters most for expats: what each one does once you’re not in the US anymore. Here’s the honest breakdown.

What Google Fi Actually Gives You Abroad

Google Fi runs four plans, and the international behavior is different on every one of them — this is the part generic reviews gloss over, and it matters a lot if you’re living somewhere other than Mexico or Canada.

• Flexible ($20/mo + $10/GB): the most relevant plan for most LatAm-based expats. Data costs $10/GB whether you’re in the US or one of 200+ international destinations — same rate, no surcharge for using it abroad. Calls abroad run 20¢/minute; texts are free to 200+ destinations.
• Unlimited Essentials ($35/mo): US-only. No international data at all, no hotspot. Skip this one if you’re actually living abroad.
• Unlimited Standard ($50/mo): unlimited data, but the international coverage is limited to the US, Canada, and Mexico. If you’re in Colombia, Panama, Argentina, or almost anywhere else in Latin America, this plan gives you nothing extra once you land — a detail Google doesn’t put front and center in its marketing.
• Unlimited Premium ($65/mo): 50GB of high-speed data across 200+ destinations, then throttled to 256 kbps after that. Calls are free to over 50 countries from the US. This is the plan that actually delivers on “use my US phone plan like normal, anywhere” for someone based broadly in Latin America.

The practical takeaway: if you’re comparing Fi to Tello because you want real working data on your US line while living in, say, Medellín or Panama City, Flexible or Premium are the plans that apply to you — Essentials and Standard were built for people who mostly stay in North America.

What Tello Actually Gives You Abroad

Tello is a T-Mobile-network MVNO built around a Build Your Own Plan model — data tiers from $5/month up to a $25/month unlimited-data plan (50GB high-speed + 10GB hotspot), all with unlimited talk and text included. It’s consistently one of the cheapest full-service US plans available, and it’s the plan we’d point to first if your main goal is a rock-bottom-cost way to keep a real US number alive.

Where it gets more nuanced is international use, because Tello actually splits this into two separate things:

• Free international calling to 60+ countries (including Mexico, Canada, and India) is bundled into every plan that includes minutes — useful for calling family back home, but this is calling from your Tello line, not data while you’re physically abroad.
• International roaming is a separate feature you switch on in your account settings, and it draws from a Pay-As-You-Go balance rather than your monthly plan — you need at least $5 of PAYG credit loaded before you can use data abroad, and it’s billed per destination rather than at one flat rate. There’s currently a limited-time free-roaming-in-Europe promo running through September 30, 2026 that doesn’t require PAYG credit, but check Tello’s site for what’s actually live before counting on it — promos like this come and go.
• The $5/month travel plan is the standout feature for this audience: if you don’t need data on the line at all — you’re using a local SIM or eSIM for actual browsing and just want your US number to keep working for calls, texts, and app verification codes — Tello lets you drop down to $5/month while you’re abroad. That’s a quarter of Google Fi’s cheapest plan for the same job.

Side by Side

Which One Should You Actually Use?

This maps onto the same strategy we recommend in our eSIM guide: use a local SIM or an Airalo-style eSIM for your actual day-to-day data once you’re settled, and treat your US number as infrastructure — something that has to keep working for bank OTPs, the IRS, old accounts, and family, not something you need to browse the internet on.

• You mainly need your US number to stay alive for banking 2FA, verification texts, and calls — you’ll get data locally. Tello’s $5/month travel plan is the clear winner. Nothing else comes close on price for this specific job.
• You want your US phone to just work normally wherever you are, without juggling a second SIM — and you’re not gone from the US for more than a couple of months at a stretch. Google Fi Flexible ($20 + $10/GB) is the more predictable option — one rate, no PAYG top-ups, no roaming toggle to remember to flip on. Note the ceiling: Fi’s terms suspend international data after roughly 50–80 days continuously abroad, so this is built for frequent travelers, not full-time relocation.
• You’re a heavy data user who wants to avoid ever thinking about a local SIM, on the same trip-length assumption above. Google Fi Premium ($65/mo, 50GB high-speed across 200+ destinations) costs more than most people need, but it’s the closest thing to “US plan that behaves the same everywhere” at real usage volumes — within that ~50– day window.
• You call family back home in one of Tello’s 60+ free-calling countries often. That’s a real, no-asterisk perk baked into every Tello plan with minutes — Google Fi’s free calling abroad is reserved for its priciest tier.

Frequently Asked Questions

Can I sign up for Tello or Google Fi if I don’t have a US address?

Neither shipping address is the actual blocker — both support eSIM, which needs no physical SIM mailed anywhere. The real requirement is different: both carriers need you to be physically in the US, connected to a US cell tower, for first-time activation. If you’re already abroad with no US trip planned, you can’t activate either one cold from where you are — you (or someone you trust in the US) need to get the eSIM live on a US connection first, after which it works abroad.

If I live in Latin America full-time, does Google Fi keep working indefinitely?

No — this is the single biggest reason Tello tends to be the better fit for permanent relocation rather than travel. Google Fi’s terms allow continuous international use only up to a point: roughly 50 days abroad triggers a warning, and international data is suspended about 30 days after that if you haven’t returned to the US. Tello doesn’t have an equivalent publicly documented time limit, largely because its $5/month plan isn’t built around heavy data use abroad in the first place — you’re meant to pair it with a local SIM.

Does either of these replace a local SIM for daily use in Latin America?

Not economically. A local SIM or carrier is almost always cheaper for heavy day-to-day data once you’re settled somewhere — both Tello and Google Fi are better suited to keeping a US number functional than to being your everyday data plan abroad. See our eSIM guide for the local-SIM transition strategy.

Will my US bank accept a Tello or Google Fi number for two-factor authentication?

Generally yes — both issue real US mobile numbers on real US networks (T-Mobile for Tello; T-Mobile/US Cellular for Google Fi), which is what most US bank 2FA systems check for. Neither is a VoIP-only number, which is the type banks are more likely to flag.

Is Google Fi’s unlimited data actually unlimited abroad?

Only in a narrow sense. Unlimited Standard’s “unlimited” data only applies inside the US, Canada, and Mexico — it gives you nothing extra in the rest of Latin America. Premium is the plan with real international high-speed data, and even that caps at 50GB before throttling to 256 kbps.

The Google Fi link above is a referral link — you and we both get a Fi service credit if you sign up. The Tello link is not currently monetized (affiliate application pending).

See also: Full Tello Review | Full Google Fi Review | Best eSIM for Latin America | Digital Nomad Finance Tools | Virtual Mailbox for Expats

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