Holafly vs AeroSims for Switzerland (2026): The Alpine Data Price Check

🏔️ Switzerland eSIM Comparison

Holafly vs AeroSims for Switzerland (2026): The Alpine Data Price Check

Updated August 2026 · Prices verified on both providers’ product pages and subject to change

Switzerland sits outside the EU’s roam-like-at-home zone, so the country that runs on precision runs up some of Europe’s most surprising roaming bills. A travel eSIM fixes that before you board the train from the airport. We compared the two obvious candidates head-to-head — same week, both product pages open side by side — so you can decide in two minutes.

Unlimited data for the whole tripGet the Switzerland eSIM — any 1–90 days →

The price gap, in real trips

On the standard lengths AeroSims now lists $10.90 for 3 days, $17.90 for 5, $24.90 for 7, $32.90 for 10 and $45.90 for 15 — against Holafly’s $11.90, $20.50, $27.50, $36.50 and $50.50. Real trips are rarely 3, 5, 7, 10, 15 or 30 days long, and our page carries a price for each one: an 8-day Zurich-and-Zermatt loop is $27.74, a 12-day grand tour $38.38. Holafly also lets you pick other durations through a calendar on its page, but it publishes prices only for the six lengths above — so those six are the only ones we compare here.

Staying a full month on unlimited? Then Holafly’s $73.90 beats AeroSims’ $87.90 and is the honest recommendation — though at that trip length it’s worth a look at AeroSims’ 50 GB / 180-day package for $44.90 before paying for any unlimited plan at all.

The option Holafly doesn’t have: fixed data packages

For Switzerland, Holafly sells unlimited only. If your usage is normal — maps to the trailhead, WhatsApp, uploading the Matterhorn — a fixed package is the rational buy, and it’s not close (all valid 30 days):

That $8.90 for 10 GB is roughly a third of a week of unlimited from either provider. Every size lives on one page: AeroSims Switzerland data packages — see where Switzerland sits in the eSIM Price Index 2026.

“Unlimited” fine print: what fair use really means

Every unlimited travel eSIM has a fair-use policy, set by the local network. The same applies to the AeroSims plan. After a daily high-speed allowance the connection continues at a reduced speed until the next day — maps and messaging keep working; streaming gets slow.

Holafly’s FAQ describes its fair-use rule as a temporary measure applied for no more than a day; the threshold isn’t published on the product page. Neither plan is infinite — the honest question is whether your usage would ever notice.

Why your EU plan probably doesn’t cover Switzerland

Switzerland is not part of the EU’s roam-like-at-home regulation. Many EU and UK mobile plans exclude it, cap it, or bill it at out-of-zone rates — travelers routinely discover this on the first phone bill after a Lucerne weekend. Check your own plan’s terms; if Switzerland isn’t included, a local-network eSIM is the predictable-cost option. US, Canadian, Australian and Asian visitors face classic roaming rates anyway, so the math is even simpler.

Coverage: cities, lakes and the high Alps

The AeroSims Switzerland eSIM runs on Sunrise and Salt with 4G everywhere tourists go and 5G in the cities. Zurich, Geneva, Basel, Bern, Lucerne, Interlaken and Zermatt are all solid, and the big rail corridors — including the panoramic routes — are well served. As on any Swiss network, expect signal to thin out in high mountain valleys and inside long tunnels; it comes back at the next station.

Switzerland eSIM questions travelers ask

Is AeroSims cheaper than Holafly for Switzerland?

Yes — at every length in Holafly’s published price table up to 15 days ($24.90 vs $27.50 for a week, $45.90 vs $50.50 for 15 days), and on fixed data packages, which its Switzerland page doesn’t list. Holafly wins the 30-day unlimited plan ($73.90 vs $87.90) and offers a longer refund window.

My EU plan roams free in the EU — does that include Switzerland?

Often not. Switzerland is outside the EU roaming regulation, and many home plans exclude or cap it. Check your plan’s terms before relying on it.

What does the fair-use policy mean in practice?

A fair-use policy applies, set by the local network: after a daily high-speed allowance the connection continues at a reduced speed until the next day. Most travelers never come close to it on a normal day of maps, messaging and social.

Does my WhatsApp number keep working?

Yes. The eSIM is data-only; your home SIM stays installed for calls and SMS codes, and WhatsApp keeps your existing number.

When does the plan start counting days?

When the eSIM first connects to a Swiss network — not at purchase. Install it at home days before you fly and lose nothing.

Where can I read more about Switzerland connectivity?

See the full AeroSims Switzerland eSIM guide for networks, activation steps and itinerary tips.

Bottom line

At every published length up to 15 days, AeroSims’ unlimited now simply costs less — with a price for each individual day and a fixed-package line Holafly doesn’t sell for Switzerland on top. For a month of unlimited, Holafly’s sticker price wins and its refund window runs longer; we say so rather than hide it. And for most travelers, $8.90 for 10 GB remains the quiet best buy in this whole comparison.

Install today · Activates when you land in SwitzerlandGet the Switzerland eSIM — exact days, no tiers →

Prices checked August 2026 at aerosims.com and esim.holafly.com (Switzerland unlimited: $11.90/3 days, $20.50/5, $27.50/7, $36.50/10, $50.50/15, $73.90/30); all change with promotions and currency. Holafly hotspot wording (“Share 1 GB of data per day”) and fair-use description from its public product page at the time of writing.