co:sim review, the parts they don't advertise
On the 35 destinations where we can compare co:sim directly, it comes out cheapest on 11, and is undercut most often by Lebara Travel eSIM.
A short metered ladder in every destination we price, opening at a 1GB week for as little as $1.99. Cheap at the small end, and the widest single-country coverage in this dataset.
What to know before you buy
- No phone number. Data only, so SMS verification codes will not arrive.
None of this is secret, and none of it is on their buy page. We surface it because we don't sell co:sim plans, the planner will actively rank co:sim down when one of these disqualifies it for your trip.
Where co:sim actually wins
co:sim is cheapest on 11 of 35 destinations we can compare directly, at seven nights of normal use. Change the trip length or the usage and that number moves, which is rather the point, there is no single best provider, only a best fit.
Destinations we price co:sim in
- 🇦🇺 Australia
- 🇦🇹 Austria
- 🇧🇷 Brazil
- 🇧🇬 Bulgaria
- 🇨🇦 Canada
- 🇨🇳 China
- 🇨🇾 Cyprus
- 🇨🇿 Czechia
- 🇫🇮 Finland
- 🇫🇷 France
- 🇩🇪 Germany
- 🇬🇷 Greece
- 🇭🇰 Hong Kong
- 🇮🇳 India
- 🇮🇩 Indonesia
- 🇮🇱 Israel
- 🇮🇹 Italy
- 🇯🇵 Japan
- 🇲🇴 Macau
- 🇲🇾 Malaysia
- 🇲🇽 Mexico
- 🇵🇭 Philippines
- 🇵🇱 Poland
- 🇵🇹 Portugal
- 🇸🇦 Saudi Arabia
- 🇸🇬 Singapore
- 🇿🇦 South Africa
- 🇰🇷 South Korea
- 🇪🇸 Spain
- 🇹🇭 Thailand
- 🇹🇷 Türkiye
- 🇦🇪 United Arab Emirates
- 🇬🇧 United Kingdom
- 🇺🇸 United States
- 🇻🇳 Vietnam
Our relationship with co:sim
We earn 10-15% when you buy through us. It does not affect the ranking above, the code that produced it cannot read commission rates. Full commission table →