Unlimited eSIMs: Who Is Actually Unlimited?

“Unlimited” is the most overloaded word in the eSIM market. Some plans mean it literally; many mean “unlimited volume, but we’ll slow you down after a few GB a day”; a few mean “unlimited on your phone, but good luck tethering.” For a remote worker who lives on a hotspot, those differences decide whether a plan is brilliant or useless.

Here’s how to read the small print — and which plans are genuinely unlimited.

The three things “unlimited” can hide

Before you buy, check all three. Any one of them can quietly cap a plan that’s advertised as unlimited.

1. The fair-use speed cap

This is the big one. Many “unlimited” plans give you unlimited data volume but throttle your speed after a daily high-speed threshold — often a few GB. You won’t be cut off, but after the cap you might be crawling at a speed that makes video calls painful. Truly flat plans don’t do this; that’s exactly what you’re paying the premium for.

2. The hotspot policy

“Unlimited data” and “unlimited hotspot” are not the same promise. Some plans cap or throttle tethering specifically, even while phone data stays uncapped. If you connect a laptop all day, this is the line that matters most — read it before you assume your plan covers it. (More in our tethering guide.)

3. The per-day price

Unlimited is usually billed per day, so the cost scales with how long you stay. That’s great for a busy fortnight and expensive across a full 90-day stay versus a large metered pack. Always translate the daily rate into a monthly figure before comparing.

Who’s actually unlimited?

Two providers in our registry genuinely sell unlimited-data plans for travellers:

• Holafly is the unlimited specialist. Its plans don’t cut you off, coverage spans 200+ destinations, and it’s the cleanest “no GB counter” experience on the market. The trade-offs: it’s priced per day (so pricey for very long stays), and hotspot allowances vary by destination — check the one you’re heading to.
• MobiMatter is a marketplace that aggregates many carriers, some offering unlimited bundles, often at a lower daily price. Because it’s an aggregator, the real terms depend on the underlying carrier of the specific listing — so read that plan’s fair-use and hotspot policy carefully before buying.

View Holafly unlimited plans

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When unlimited is the right call

Unlimited earns its premium when:

• You tether a laptop most of the working day.
• You take back-to-back video calls.
• You upload large files or stream often.
• You’d otherwise buy 50 GB+ a month.
• The mental overhead of metering genuinely hurts your focus.

It’s the wrong call when you mostly work on apartment or café Wi-Fi, use under ~40 GB a month, or you’re staying long and want the lowest possible cost — in those cases a metered country pack is cheaper.

Unlimited vs metered: the break-even

The maths is simpler than it looks. Take the unlimited plan’s daily price, multiply to a month, and compare it to what you’d spend on a metered pack of your real usage.

• Use 20–30 GB/month? A metered pack almost always wins.
• Use 40–50 GB/month? It’s a toss-up — buy on convenience.
• Use 60 GB+/month or tether all day? Unlimited usually wins on price and removes the stress.

The bottom line

“Unlimited” is real, but it’s rarely absolute. For most long-stay nomads who tether and take calls, a genuinely flat plan like Holafly’s removes a whole category of worry — just go in knowing about the fair-use speed cap, the hotspot terms, and the per-day pricing. If your usage is moderate, you’ll save money with a metered plan.

Either way, start from the best unlimited plans or the digital nomad hub, and compare on your numbers, not the marketing.

Prices and plan terms mentioned here are indicative examples — always confirm the current price and the exact fair-use and hotspot policy on the provider’s site before buying.