Travel eSIMs for iOS, Android & web

Travel data,
ready for the trip.

Choose your destination, see the full price upfront, and arrive with travel data ready to go.

Download on theApp StoreComing soon toGoogle Play

100+

Destinations

Find coverage for the places you are headed.

Clear

Pricing

See the total in USD before you choose a plan.

Easy

eSIM setup

Create and install your eSIM before you travel.

🇯🇵 Japan view plans🇮🇹 Italy view plans🇬🇧 United Kingdom view plans🇺🇸 United States view plans🇲🇽 Mexico view plans

Travel without the scramble

A calmer way to
get online abroad.

100+ destinations

Check current availability and USD pricing before you travel.

Ready when you arrive

Install over Wi-Fi on a supported device. Your plan starts when it first connects in coverage.

Manage every trip

Check remaining data and plan status, then add another fixed data pack when you need it.

The manifesto

Getting online abroad should not begin with a kiosk, a swapped SIM, or a surprise bill.

Constella brings plan discovery, secure checkout, guided installation, remaining data, and plan status into one calm experience across iOS, Android, and web.

Current catalog pricing

Search the destination.
Find the right plan.

Compare current validity, data allowance, and total USD price for a supported destination.

Find your plan

DestinationTokyo, JapanCheck current availability

Data planFixed data packAllowance, validity & USD total

How it works

From account setup to
travel data in four steps.

Choose a destination

Browse current coverage and compare fixed data packs.

Create your account

Complete setup once, then use the same account across supported platforms.

Install on Wi-Fi

Follow the guided eSIM installation on your supported iPhone or Android device.

Connect and manage

Your plan starts in coverage; check remaining data and status as you travel.

Travel data,ready for the trip.