eSIM
Strongesim
Fixed-volume travel eSIM data across 176 countries
Strongesim is a travel eSIM provider offering fixed-volume data plans across 176 countries. You pick a 4G/5G GB allowance suited to your trip, with no physical SIM card and no roaming fees, for travellers, digital nomads and families who want to stay connected abroad.
On Datadopt we compare the active Strongesim plans to help you find the offer best suited to your destination, at the best data/price ratio, with QR code activation in a few minutes. The catalogue is especially deep on Turkey, Central Asia and the Middle East.
All Strongesim plans
Datadopt lists the active Strongesim plans, all fixed-volume. Filter by destination, duration and price. Each "Subscribe" button redirects you to Strongesim to complete the purchase.
Strongesim key strengths
176 countries covered
Single-country and regional eSIM plans across major destinations : Europe, the Americas, Asia, the Middle East, North Africa, with a dense catalogue across Asia.
Strong on Turkey and Asia
Turkey is the flagship destination of the catalogue, followed by Central Asia and the Middle East : good ground if your trip passes through these regions.
4G/5G data, fixed volume
All plans come with a chosen volume (GB), from a small few-day plan to more generous allowances for longer stays.
QR code activation
QR code sent by email after payment. Installs in minutes on iPhone or Android, with no wait for a physical card.
Compatible with recent iPhone and Android
iPhone XS and later (2018+), Samsung Galaxy S20+, Google Pixel 3+, Xiaomi 13+ and most recent eSIM smartphones.
Trustpilot rating 3.8/5
A fair reputation on Trustpilot, but on a still-limited number of reviews : read it as an early signal rather than a definitive verdict.
Who is Strongesim ? A look at the eSIM provider
Strongesim is a travel eSIM provider : a digital SIM you download via QR code to be connected on arrival, with no roaming fees and no physical SIM card. The catalogue is made up 100 % of fixed-volume data plans, with no unlimited data offer : you pick a GB allowance based on your usage.
Strongesim plans rely on local partner networks, which makes 4G/5G speeds vary from one destination to another. As with most fixed-volume eSIMs, a fair use policy may throttle the speed once the allowance is used up : it is better to size your plan tightly and top up if needed.
The catalogue is clearly geared towards Turkey, Central Asia and the Middle East, where the offer is richest, while still covering the major tourist destinations of Europe, the Americas and South-East Asia. It is a relevant choice if your itinerary passes through these regions ; for premium coverage everywhere, compare with the alternatives.
In practice, installation happens on an eSIM-compatible iPhone or Android by scanning the QR code received by email. Refund conditions depend on Strongesim's policy at the time of purchase, generally as long as the eSIM is not activated : test the data connection as soon as it is installed.
Is Strongesim reliable ? The provider shows a Trustpilot rating of 3.8/5, fair but based on a still-small number of reviews, which calls for caution. The other points to watch are those common to data eSIMs : speed depends on the partner network, plans are data only (no classic calls or SMS), and coverage is stronger in Asia and the Middle East than on some Western destinations. If that profile does not fit yours, the alternatives Airalo, Holafly or Nomad are worth comparing.
Strongesim reviews : what do users say ?
Datadopt aggregates ratings from public review platforms to give you an objective view of Strongesim's reputation. Here is the available data :
Trustpilot
3.8/5
20 reviews
Recurring strengths
- Simple, fast purchase and QR code installation
- Good offer on Turkey, Central Asia and the Middle East
- Clear fixed-volume data plans, easy to compare
- Fair Trustpilot rating (3.8/5) for a recent provider
Points to watch
- Still-small review sample (around twenty on Trustpilot)
- No unlimited data : fixed-volume plans only
- Speed varies with the partner network of the country visited
- Coverage richer in Asia than elsewhere : check per destination
Our take : Strongesim is a relevant choice for a trip to Turkey, Central Asia or the Middle East, with fixed-volume data plans that are easy to compare and a fair Trustpilot rating. The small number of reviews does call for caution, though : for unlimited data or a more proven catalogue, the alternatives Holafly, Airalo or Nomad are also worth comparing.
Strongesim coverage : where do the plans work ?
Strongesim offers eSIM plans across 176 countries, in single-country and regional offers, with a catalogue especially deep on Turkey and Asia. Here are popular covered destinations, with a direct link to the matching plans.
Popular covered destinations
⚠️ Countries with restrictions (China, etc.)
In countries that filter the web (China and its Great Firewall in particular), Google, WhatsApp, Instagram and Facebook may stay blocked even with an eSIM, because access goes through a local operator. To keep your usual services, install a VPN (NordVPN, ExpressVPN, Proton VPN) before departure. Always check your destination's availability in the plan list above.
eSIM guides by destination
Strongesim plan types
Country plan
An eSIM dedicated to a single destination. Ideal for a targeted trip (Turkey, Japan, United States) with a chosen data volume.
Regional plan
A single eSIM for several neighbouring countries (Europe, regions of Asia or the Middle East). Handy for a multi-country itinerary.
Small volumes
Few-GB plans for a short stay or controlled usage (browsing, maps, messaging, social media).
Large volumes
More generous allowances for longer stays or sustained usage, always fixed-volume.
Strongesim FAQ
How do I activate a Strongesim eSIM ?▾
After payment, Strongesim sends a QR code by email. On iPhone : Settings → Cellular → Add eSIM → scan the QR. On Android : Settings → Network and internet → SIM → Download a SIM. Activate preferably on arrival at your destination to preserve the plan's validity period.
What types of plans does Strongesim offer ?▾
The Strongesim catalogue is made up 100 % of fixed-volume data plans (in GB), from a small few-day plan to more generous allowances. There is no unlimited-data offer : for that need, compare with alternatives such as Holafly.
Which countries is Strongesim strongest in ?▾
The catalogue is especially deep on Turkey, Central Asia and the Middle East, while still covering the major destinations of Europe, the Americas and South-East Asia. Always check the availability and the volume offered for your exact destination in the plan list above.
Can I use WhatsApp, TikTok and hotspot with Strongesim ?▾
WhatsApp and TikTok work on Strongesim data plans (except restricted countries such as China, where a VPN is needed). Hotspot (tethering) is generally allowed : check the note in each plan's details on Datadopt.
Can I make calls and send SMS with Strongesim ?▾
Strongesim plans are data only : no classic phone number for calls and SMS. Use WhatsApp, FaceTime or Google Voice over data to call and message.
Does Strongesim work in China ?▾
China is among the covered destinations : check the plan in the list above. Even when covered, China blocks Google, WhatsApp, Instagram and Facebook via the Great Firewall. Install a VPN (NordVPN, ExpressVPN, Mullvad) on your phone BEFORE departure.
Is my phone compatible with Strongesim ?▾
iPhone XS and later (2018+), Samsung Galaxy S20 and later, Google Pixel 3+, Xiaomi 13+ and most recent eSIM smartphones. See our complete eSIM smartphone compatibility guide for the detailed list of all models.
Does Strongesim refund in case of a problem ?▾
Refund conditions depend on Strongesim's policy at the time of purchase, generally as long as the eSIM is not activated. Test the data connection as soon as it is installed and contact support in case of a confirmed malfunction.
How good are Strongesim reviews ?▾
Strongesim shows a Trustpilot rating of 3.8/5, fair, but based on a still-limited number of reviews (around twenty). It is an early signal rather than a definitive verdict : cross-check it with the points to watch above and verify your destination's coverage before buying.
Alternatives to Strongesim
Depending on your usage and budget, several alternatives may be a better fit :
Airalo
The volume leader : a very large catalogue of limited data plans, ideal for comparing prices country by country.
View provider Airalo →
Holafly
The unlimited-data reference, with 24/7 support : relevant for long stays and heavy usage.
View provider Holafly →
Nomad
Good value for money and a polished app, strong across Asian regions.
View provider Nomad →
Saily
By NordVPN : enhanced security and data plans designed for cautious travellers.
View provider Saily →
Useful Datadopt guides
Transparency about our links
Datadopt is a Strongesim partner. Some links on this page are sponsored (affiliate) links : when you subscribe to an offer from Datadopt, we earn a commission at no extra cost to you. This mechanism fully funds the maintenance of the comparator, the editorial enrichment of the pages and the aggregation of reviews. Our recommendations stay independent : we also list alternatives to Strongesim and flag the points to watch on each provider.