eSIM providers, reviewed

The companies behind most travel eSIMs sold today. Each review covers how they price, where they work, and who they suit.

Airalo Unlimited by days

Since 2019 · Singapore · ~200 countries

Most travellers. Unlimited-data plans by trip length, the widest country list, and the most polished app.

Good: Unlimited-data plans priced by number of days — no GB to track

Watch: Unlimited plans run at reduced speed after a fair-use threshold in some countries

Read the Airalo review
Holafly Unlimited by days

Since 2018 · Spain · ~200 countries

Unlimited-data travellers who want a simple choice and don't mind paying a little more than Airalo.

Good: Genuinely unlimited data on every plan, priced purely by days

Watch: Usually the most expensive of the three on any given trip length

Read the Holafly review
Saily Capped data

Since 2024 · UK (Nord Security) · ~200 countries

Light and budget users. Small capped-data plans from ~$3–4, far cheaper than any unlimited plan.

Good: By far the cheapest way to get online for a short or light trip

Watch: You have to estimate your data need — run out and you top up

Read the Saily review

Quick comparison

ProviderModelTop-upCalls/SMSCountries
Airalo Unlimited / days Yes Data-only in most countries; a few offer calls/texts add-ons ~200
Holafly Unlimited / days No Data-only ~200
Saily Capped data Yes Optional US number add-on ~200