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Why eSIMs matter for travelers
If you still hunt for a SIM-card kiosk at the airport, an eSIM is about to make your life easier — and your trip a little lighter on the planet. An eSIM is a digital SIM built into your phone: there’s no plastic card to ship, snap into a tray, or toss in a drawer when you get home. You buy a data plan online, scan a QR code (or tap a button in an app), and you’re connected the moment you land.
For travelers trying to tread lightly, the appeal goes beyond convenience. No plastic, no packaging, and no shipping emissions for a tiny card that crosses an ocean to reach you. You connect to local networks at local prices instead of paying eye-watering roaming fees, and you can keep your home number active for calls and texts while a travel eSIM handles data. One phone, no clutter, no waste.
Below I compare six options I think are worth your attention — two US carriers I’ve used personally (Google Fi and Tello), three global travel-eSIM services that cover just about everywhere you’d want to go (Airalo, TheBitJoy, and eSIMania), and one portable WiFi hotspot (Solis) for travelers who need to share a connection.
Quick comparison
| Provider | Coverage | Pricing approach | Best for |
|---|---|---|---|
| Google Fi Wireless (US eSIM) | US plan with built-in roaming in 200+ destinations | Monthly carrier plans (Flexible + unlimited tiers) | US residents who travel often but always come home |
| Tello Mobile (US eSIM) | US plan with pay-as-you-go roaming in 200+ countries | Cheap custom monthly plans + PAYG roaming (voice from 5¢/min) | US travelers wanting a low-cost everyday line with occasional roaming |
| Airalo | 200+ countries; local, regional & global eSIMs | Pay-as-you-go data packs from ~$3.50; unlimited daily plans | Beginners who want the biggest catalog and a polished app |
| TheBitJoy | 190–225 countries, 800+ plans | Cheap fixed-data packs (from ~$1.49) + daily unlimited | Budget travelers who want the lowest per-trip price |
| eSIMania | 200+ countries | Low per-GB data packs (from ~€0.75/GB) with cashback | Value-focused, data-only travelers |
| Solis (hotspot, not an eSIM) | 140+ countries, 300+ carriers | Buy the device + flexible data; includes 1GB/mo lifetime data | Groups and multi-device families wanting a separate WiFi puck |
1. Google Fi Wireless (Google’s US eSIM)
What it is. Google’s own eSIM offering in the United States is Google Fi Wireless (the consumer wireless service, distinct from Google One, which is Google’s cloud-storage subscription). It’s a full mobile carrier — phone number, calls, texts, and data — that runs primarily on T‑Mobile’s network and supports eSIM on most modern phones. Unlike a travel eSIM, it’s your everyday US line that happens to include strong international roaming baked in.
US-only availability. Google Fi is for US residents. Signing up requires a US shipping address and a US-issued payment method, and the service is meant to be used primarily within the United States. New lines also need to be activated and used in the US for at least a day before you head abroad. If most of your usage happens outside the US over an extended stretch (roughly 50+ days, with suspension following after warnings), Google can suspend international data — so it’s built for people who travel and return home, not for expats or long-term nomads.
How it works. You install it through the Google Fi app: download, tap to set up the eSIM, and the plan activates in a few moments. When you travel, data roaming in 200+ destinations works automatically with no separate plan to buy — you just land and you’re online at no extra per-day fee on the unlimited tiers.
Pricing structure. Google Fi offers a Flexible plan (pay-per-gig data on top of a base monthly fee) plus unlimited tiers (Unlimited Essentials and Unlimited Standard), with per-line pricing that drops as you add lines. The Flexible plan is attractive for light data users; the unlimited tiers add hotspot and broader Canada/Mexico/international coverage.
My take: I had Google Fi for years, and while it was very convenient, the price is just too high when there are cheaper alternatives out there. The only real use case is if you’re traveling internationally constantly — and even then it’s not always 100%. I ran into connection issues in Denmark, so don’t assume it’ll work flawlessly everywhere. Convenient, yes; worth the premium, not for most people.
2. Tello Mobile (US eSIM)
What it is. Tello is a budget US carrier (an MVNO running on T‑Mobile’s network) known for low-cost, fully customizable monthly plans and eSIM support. Like Google Fi, it’s a US everyday line rather than a dedicated travel eSIM — but it now bundles in international roaming, which makes it a tidy option for US-based travelers who want to keep one number and one bill.
Coverage. Tello’s international roaming reaches 200+ countries and territories, with your actual signal depending on the local partner networks where you’re visiting. It also includes free international calling to 60+ destinations when you’re on Wi‑Fi or at home.
Pricing and how roaming works. Tello’s domestic plans are famously cheap and build-your-own (mix and match data and minutes). Roaming is pay-as-you-go: charges come out of a separate PAYG balance rather than your monthly plan. Tello recently cut roaming rates roughly 5x — voice is now around 5¢/minute — and you need a minimum $5 balance to activate roaming (PAYG credit is typically topped up in $20 increments). Off Wi‑Fi, your phone uses local towers and bills from your PAYG balance; on Wi‑Fi, you can use Wi‑Fi Calling to avoid roaming charges entirely.
Setup and devices. Tello supports eSIM on most modern phones, with activation handled online or in-app.
My take: If you’re a US citizen, I recommend Tello over Google Fi — it’s simply a much better value. You can travel easily with pay-as-you-go roaming, and it’s a great deal at home too: it works great in the US as your everyday line. For the price, it’s hard to beat.
3. Airalo — the global all-rounder
Airalo is the biggest name in travel eSIMs, and for good reason. Operating since 2019 with more than 10 million users, it partners with local carriers in 200+ countries and regions and offers three flavors of plan: local (single country), regional (e.g., all of Europe or Asia on one eSIM), and global.
Pricing and plans. Local data packs start around $3.50, with regional and global plans costing a bit more per GB in exchange for multi-country convenience. Airalo has also rolled out Unlimited eSIMs for many destinations: you pay a fixed price for a set number of days and get fast speeds up to a generous daily threshold (commonly around 3 GB/day) before speeds ease off and reset at midnight — handy if you’d rather not count gigabytes.
Setup and devices. Installation is genuinely beginner-friendly. Most travelers are connected in a few minutes via the Airalo app, which adds the eSIM profile for you, or via QR code. It works with most recent eSIM-capable phones — newer iPhones, Samsung Galaxy, Google Pixel, and other premium Android devices.
Support. Airalo offers in-app and 24/7 chat support, and its scale means a deep help center and plenty of documentation.
Pros: Largest catalog, polished app, unlimited options, trusted brand.
Cons: Not always the rock-bottom cheapest per GB; data-only (no local number on most plans).
💳 Reader discount: Use code UNLIMITED4YOU for 15% off your first Airalo Unlimited eSIM, valid April 21 – September 30, 2026. Get your Airalo eSIM here.
4. TheBitJoy — the budget pick
TheBitJoy is a smaller, value-focused provider with a surprisingly broad catalog — its eSIMs span 190+ countries (with marketing claims of up to 225 countries and 800+ plans tested). The pitch is simple: connect directly to local networks for local prices, no roaming-bill surprises.
Pricing and plans. This is where TheBitJoy shines. Plans start as low as ~$1.49–$1.99 (for small data buckets), and it offers both fixed-data packs (1, 3, 5, 10, 20, 50 GB) and daily unlimited options. Europe regional plans start around $2.90 across 40+ countries, and global plans begin near $11.99. Hotspot/tethering is enabled on most plans, though a few cap or block it — worth checking the specific plan.
Setup and devices. Activation is quick — most travelers are running in under two minutes via QR code — and it works on standard eSIM-compatible phones.
Support and reputation. TheBitJoy has solid (if modest-volume) Trustpilot feedback, with customers calling it “serious and reliable.” It leans on AI/chat support backed by a human team, typically responding within 24 hours, and advertises a no-questions-asked refund window (around 5 days / 100% within 24 hours).
Pros: Among the cheapest per-trip pricing, daily unlimited options, fast activation, refund guarantee.
Cons: Smaller brand with a shorter track record; tethering limits on some plans; support is mostly async.
5. eSIMania — the value-per-GB option
eSIMania rounds out the list as a lean, data-focused provider covering 200+ countries with 4G/5G support and instant QR-code activation.
Pricing and plans. Pricing is aggressive on a per-GB basis — starting around €0.75/GB — and the platform offers a small cashback incentive (about 5%) on payments. Plans scale from a few GB up to large multi-week buckets (for example, ~10 GB / 30 days and ~20 GB / 90 days global options), including some unlimited-style choices.
Setup and devices. Setup is the familiar scan-and-go: buy online, scan the QR code, connect instantly. It works with current eSIM-capable smartphones.
Support and limitations. This is the trade-off. eSIMania is data-only — no phone number, no SMS — and support runs through email and a help center, with no live chat or phone line. Independent review aggregators land it around the middle of the pack (roughly 3/5), with praise for instant activation and fair pricing but the obvious caveat on support channels.
Pros: Very low per-GB cost, cashback, wide coverage, instant activation.
Cons: Data-only; email-only support; less hand-holding than bigger brands.
6. Solis — the portable hotspot alternative
A quick note: Solis isn’t an eSIM — it’s a pocket-sized mobile WiFi hotspot device (the “WiFi puck”), powered by SIMO’s virtual-SIM technology. I’m including it because it solves a different problem: instead of putting data on one phone, it broadcasts WiFi to up to 10–16 devices at once, which is ideal for families, travel groups, or anyone juggling a laptop, tablet, and phone without burning through a single phone’s plan.
Coverage. Solis connects in 140+ countries with access to 300+ carriers, automatically hopping onto the strongest local network wherever you are — no SIM swapping, no per-country setup.
The device and data plans. Unlike an eSIM, there’s an upfront hardware cost: you buy a Solis hotspot (models range from the 4G Solis Lite up to the Solis 5G / Edge). Every device includes a Lifetime Data plan of 1 GB per month at no extra cost, and on top of that you can add flexible data — daily passes, weekly packs, monthly subscriptions, or pay-per-GB cards — with no contracts. Note that Solis sells the hardware outright (no rentals), so it’s a bigger initial outlay than a $5 eSIM.
Best for. Travelers who want one connection shared across several devices or people, or who prefer keeping their phone’s battery and plan separate from their travel data. The trade-off is one more gadget to carry and charge.
Bottom line: who should pick what
There’s no single winner — the right choice depends on how (and where) you travel.
- You’re a US resident who wants the best everyday line with easy roaming: Tello Mobile is my pick — it works great at home, keeps your monthly bill low, and adds pay-as-you-go roaming for the trips you take. It’s a far better value than Google Fi.
- You travel internationally almost constantly and want one number for everything: Google Fi Wireless is the convenient (if pricey) option — just know coverage isn’t always 100% everywhere (see my review above).
- You want the easiest, most reliable experience and the biggest country list: Go with Airalo — and don’t forget code UNLIMITED4YOU for 15% off your first Unlimited eSIM through September 30, 2026.
- You want the lowest price for a specific trip: TheBitJoy usually undercuts the big names, with daily-unlimited options and a refund guarantee for peace of mind.
- You’re a data-only traveler chasing the best per-GB value: eSIMania delivers cheap gigabytes and cashback, as long as you don’t need a phone number or live support.
- You’re traveling as a family or group, or want one connection for several devices: Solis is the odd one out — a physical hotspot rather than an eSIM — but it shines when you need to share WiFi across phones, laptops, and tablets at once.
My honest advice: pick based on your next trip, not forever. eSIMs are cheap and disposable-by-design (in the digital sense — no plastic!), so it’s easy to keep a global all-rounder like Airalo for convenience and reach for a budget option like TheBitJoy or eSIMania when you want to save on a longer stay.