SoSIM Review 2026 - Is SoSIM's eSIM reliable?
At a glance
Reviews & ratings
Pros & cons
👍 What we like
- ✓Wide international coverage with an offer designed for frequent travellers.
- ✓Availability of eSIM and physical SIM options.
- ✓Tethering permitted on travel plans.
- ✓Recharge and account management via the app or web portal.
- ✓Plans with long validity available up to 730 days.
- ✓Announced compatibility with many common eSIM devices.
👎 What we like less
- ✗No external rating recorded in the audited data.
- ✗Public information remains more detailed for travel than for overall purchase journey clarity.
- ✗Some voice and SMS functions depend on credit or local plan.
- ✗eSIM compatibility depends on exact model and software version.
- ✗Minimum prices in euros and dollars are not confirmed in the provided sources.
What is SoSIM?
What is SoSIM?
SoSIM is a prepaid offering from Hutchison Telephone Company Limited, operator linked to Three Hong Kong. It allows you to purchase an eSIM or physical SIM to use mobile services in Hong Kong or while travelling. Plans cover different uses: local service in Hong Kong, APAC passes, Greater China passes, UK / US / Canada / Australia / New Zealand passes, and Global passes for numerous destinations. Depending on the plan, data, voice and SMS may be included or billed separately. The eSIM works by scanning the QR code received by email after purchase. Once installed on a compatible device, it activates according to the chosen pass rules, often upon arrival at the destination, with account management via the SoSIM app or web portal.
Plans overview
Destinations covered by SoSIM
Coverage broken down by region. Tap a region to see its countries.
Our verdict
SoSIM is a prepaid offering from Hutchison Telephone Company Limited for Hong Kong and international travel. It provides eSIMs and data passes with tethering, calls, and SMS depending on the plan, and official coverage of 120 destinations.
Popular alternatives
Frequently asked questions
No, SoSIM is not a scam: it is a reliable, well-known eSIM with a 3.5/5 rating in our test, coverage across 120 destinations and access to local 4G/5G networks (speed depends on local coverage). Just make sure your phone is eSIM-compatible before buying.
SoSIM covers more than 120 destinations. Availability and network quality depend on the destination and the local partner operator: check that your travel country is covered before buying.
The main downsides we found in our test: No external rating recorded in the audited data, Public information remains more detailed for travel than for overall purchase journey clarity, Some voice and SMS functions depend on credit or local plan, eSIM compatibility depends on exact model and software version and Minimum prices in euros and dollars are not confirmed in the provided sources.
It depends on your destination and budget: SoSIM scores 3.5/5 in our test, but the best value changes by country. Compare current deals in our comparator before choosing.
The APAC pass is best suited for a short stay as it covers several destinations in the region with short-duration options.
Yes, tethering is allowed on SoSIM travel plans.
Hong Kong plans include local call minutes and local SMS depending on the offer. For travel passes, voice and SMS may depend on available credit.
SoSIM indicates compatibility with many eSIM devices, but you must check the exact model and software version of your phone before purchasing.
For travel services outside Hong Kong, identity registration is not required according to the official FAQ.
Yes, the eSIM can be purchased in advance and installed from the QR code received by email.
You can recharge your account via the SoSIM app or web portal, then choose a new pass according to your needs.
Some SoSIM offers can be valid up to 730 days.
What to do if SoSIM doesn't work?
Check device compatibility, system update, and internet connection quality during QR code scanning.
Restart the phone, activate data roaming, and verify the SoSIM line is selected for mobile data.
Reduce HD streaming, disable automatic updates, and prefer Wi-Fi when available.
Check automatic activation settings in your SoSIM account before departure and disable them if you want to delay start.