O2, congstar and ALDI TALK Outside the EU vs Pay As You Go

Outside the EU, O2's Roaming Plus World costs O2 Mobile, O2 Grow and O2 Free customers €14.99 (US$17.09) for 2 GB, and ALDI TALK's Europa + Nordamerika option costs €9.99 (US$11.39) for 3 GB over 7 days in the US, Turkey or Switzerland. Travel periods of 6 to 8 days used a median of 1.38 GB in Bcengi's 2026 sample. Paying as you go, that trip's 1.38 GB costs $2.13 in Turkey at $1.54/GB, metered by the KB (Bcengi's prices are in US dollars). For this trip, Bcengi is about 8 times cheaper than O2 and about 5.5 times cheaper than ALDI TALK.

This page is for O2 Mobile, O2 Grow and O2 Free plans, for congstar plans and for ALDI TALK prepaid, in destinations outside the EU. Each carrier's prices are as listed on its own website, read October 4, 2026.

What O2, congstar and ALDI TALK charge for data outside the EU

• O2 Roaming Plus World: €14.99 (US$17.09) with O2 for 2 GB over 1 month in more than 100 countries outside the EU, the US, Turkey, Egypt and Thailand among them, on O2 Mobile, O2 Grow and O2 Free plans. It can be booked again once the 2 GB is used.
• The trip uses 1.38 GB of the 2 GB pack, so nearly a third of what you paid for is left unused when the month ends.
• Switzerland: O2's one-month pack is €9.99 (US$11.39) for 3 GB.
• The trip uses 1.38 GB of the 3 GB pack, so more than half of what you paid for is left unused when the month ends.
• congstar SurfPass S: €6 (US$6.84) with congstar for 2 GB over 7 days in the US, Turkey and Thailand, on contracts and prepaid; without a pass, congstar allows no data use in these countries.
• The trip uses 1.38 GB of the 2 GB pass, so nearly a third of what you paid for is left unused when it expires.
• Egypt: congstar's SurfPass Ägypten S is €5 for 1 GB over 7 days and can be booked as often as needed; the median trip needs two, €10 (US$11.40) with congstar, and nearly a third of the 2 GB is left unused.
• ALDI TALK Europa + Nordamerika: €9.99 (US$11.39) with ALDI TALK for 3 GB over 7 days in the US, Turkey and Switzerland, and €5.99 for 1 GB; ALDI TALK Welt: €9.99 (US$11.39) for 1 GB over 7 days in Egypt and Thailand.
• The trip uses 1.38 GB of the 3 GB option, so more than half of what you paid for is left unused when it expires.
• ALDI TALK lets you book an option again at any time, and data you have not used lapses when you rebook. In Egypt and Thailand the median trip needs two Welt options, €19.98 (US$22.78) with ALDI TALK, and nearly a third of the 2 GB is left unused.

What a 7-day trip costs: a carrier's pass or paying as you go

Paying as you go with Bcengi, a trip costs what its data costs. Each line below is a model for a trip of 6 to 8 days: the median (1.38 GB) and the 90th percentile (6.50 GB) from the usage report, times the country's rate on October 4, 2026.

O2 Mobile, O2 Grow and O2 Free

• Turkey rates: a median 7-day trip (1.38 GB at $1.54/GB) costs $2.13 with Bcengi; at the 90th percentile (6.50 GB at $1.54/GB), $10.01. Against O2's Roaming Plus World, the median trip is about 8 times cheaper; against four of O2's Roaming Plus World, the 90th percentile trip is about 7 times cheaper.
• United States rates: a median 7-day trip (1.38 GB at $1.68/GB) costs $2.32 with Bcengi; at the 90th percentile (6.50 GB at $1.68/GB), $10.92. Against O2's Roaming Plus World, the median trip is about 7.5 times cheaper; against four of O2's Roaming Plus World, the 90th percentile trip is about 6.5 times cheaper.
• Switzerland rates: a median 7-day trip (1.38 GB at $1.81/GB) costs $2.50 with Bcengi. Against O2's one-month Switzerland pack, the trip is about 4.5 times cheaper.
• Egypt rates: a median 7-day trip (1.38 GB at $2.51/GB) costs $3.46 with Bcengi; at the 90th percentile (6.50 GB at $2.51/GB), $16.32. Against O2's Roaming Plus World, the median trip is about 5 times cheaper; against four of O2's Roaming Plus World, the 90th percentile trip is about 4 times cheaper.
• Thailand rates: a median 7-day trip (1.38 GB at $1.81/GB) costs $2.50 with Bcengi; at the 90th percentile (6.50 GB at $1.81/GB), $11.77. Against O2's Roaming Plus World, the median trip is about 7 times cheaper; against four of O2's Roaming Plus World, the 90th percentile trip is about 6 times cheaper.

congstar contracts and prepaid

• Turkey rates: a median 7-day trip (1.38 GB at $1.54/GB) costs $2.13 with Bcengi. Against congstar's SurfPass Türkei S, the trip is about 3 times cheaper.
• United States rates: a median 7-day trip (1.38 GB at $1.68/GB) costs $2.32 with Bcengi. Against congstar's SurfPass USA S, the trip is about 3 times cheaper.
• Egypt rates: a median 7-day trip (1.38 GB at $2.51/GB) costs $3.46 with Bcengi. Against two of congstar's SurfPass Ägypten S, the trip is about 3.5 times cheaper.
• Thailand rates: a median 7-day trip (1.38 GB at $1.81/GB) costs $2.50 with Bcengi. Against congstar's SurfPass Thailand S, the trip is about 2.5 times cheaper.

ALDI TALK prepaid

• Turkey rates: a median 7-day trip (1.38 GB at $1.54/GB) costs $2.13 with Bcengi; at the 90th percentile (6.50 GB at $1.54/GB), $10.01. Against ALDI TALK's Europa + Nordamerika 3 GB option, the median trip is about 5.5 times cheaper; against two of ALDI TALK's 3 GB and one 1 GB Europa + Nordamerika options, the 90th percentile trip is about 3 times cheaper.
• United States rates: a median 7-day trip (1.38 GB at $1.68/GB) costs $2.32 with Bcengi; at the 90th percentile (6.50 GB at $1.68/GB), $10.92. Against ALDI TALK's Europa + Nordamerika 3 GB option, the median trip is about 5 times cheaper; against two of ALDI TALK's 3 GB and one 1 GB Europa + Nordamerika options, the 90th percentile trip is about 2.5 times cheaper.
• Switzerland rates: a median 7-day trip (1.38 GB at $1.81/GB) costs $2.50 with Bcengi; at the 90th percentile (6.50 GB at $1.81/GB), $11.77. Against ALDI TALK's Europa + Nordamerika 3 GB option, the median trip is about 4.5 times cheaper; against two of ALDI TALK's 3 GB and one 1 GB Europa + Nordamerika options, the 90th percentile trip is about 2.5 times cheaper.
• Egypt rates: a median 7-day trip (1.38 GB at $2.51/GB) costs $3.46 with Bcengi; at the 90th percentile (6.50 GB at $2.51/GB), $16.32. Against two of ALDI TALK's Welt 1 GB options, the median trip is about 6.5 times cheaper; against seven of ALDI TALK's Welt 1 GB options, the 90th percentile trip is about 5 times cheaper.
• Thailand rates: a median 7-day trip (1.38 GB at $1.81/GB) costs $2.50 with Bcengi; at the 90th percentile (6.50 GB at $1.81/GB), $11.77. Against two of ALDI TALK's Welt 1 GB options, the median trip is about 9 times cheaper; against seven of ALDI TALK's Welt 1 GB options, the 90th percentile trip is about 7 times cheaper.

For how bundles and pay as you go compare, see bundles vs pay as you go.

What you get with Bcengi

• One reusable eSIM: install it once and use it on every trip.
• A balance that never expires: what one trip does not use is there for the next.
• No plan to pick: you never guess a size before you travel.
• Top up any time, by hand or with auto-refill.
• Your phone number stays on your home SIM for calls and texts; Bcengi is data only.

O2, congstar and ALDI TALK roaming questions

How much is O2 Roaming Plus World?

O2's Roaming Plus World is €14.99 for 2 GB over 1 month on O2 Mobile, O2 Grow and O2 Free plans, in more than 100 countries outside the EU.

How much does ALDI TALK charge for data outside the EU?

ALDI TALK's Europa + Nordamerika option is €9.99 for 3 GB over 7 days in the US, Turkey and Switzerland, and its Welt option €9.99 for 1 GB over 7 days in Egypt and Thailand.

How do I use a travel eSIM instead of O2, congstar or ALDI TALK roaming?

Install the eSIM before you leave, set it as your data line, and turn data roaming off for your O2, congstar or ALDI TALK line so it does not use data abroad. See turn roaming off on your home line.

How these figures were measured

The usage figures come from Bcengi's 2026 International Mobile Data Usage Report: a stratified random sample of 10,000 travel periods, with usage from January 1 to September 30, 2026. The figures cover every destination in the sample, not one country.

Everyone sampled chose a pay-as-you-go eSIM, so the figures describe those travelers, not all travelers.

Each trip cost on this page is a model, not a bill: the GB a trip used times the per-GB rate on our pricing page on October 4, 2026. Rates can change; the pricing page always has the current ones.

Euro prices are converted to US dollars at the Federal Reserve's rate for September 25, 2026, 1.1400 US dollars per euro.

Updated October 4, 2026. Sources: O2's Roaming Plus World and Switzerland pages, congstar's roaming page and ALDI TALK's travel options page; Federal Reserve exchange rates; Bcengi 2026 International Mobile Data Usage Report; Bcengi pricing page.