Roamsim Review 2026 - Is Roamsim's eSIM reliable?
At a glance
Reviews & ratings
Easy to install eSIM for Japan, good coverage from Tokyo to Fukuoka, excellent support to resolve initial issues.
Works perfectly upon arrival in Bali for maps and taxis, less than 1GB used on 3GB, excellent value for money.
Reliable multi-country Europe, easy to set up and check usage, highly recommended.
Pros & cons
👍 What we like
- ✓Simple installation via QR code and effortless activation.
- ✓Affordable local prices with no roaming or surprises.
- ✓Hotspot allowed on all plans.
- ✓Responsive customer support via email based on feedback.
- ✓Top-up possible anytime within the validity period.
👎 What we like less
- ✗Data-only, no native calls/SMS.
- ✗No mobile app, web management only.
- ✗Depends on local partners’ coverage.
- ✗Duration and data volumes not publicly specified.
- ✗Requires unlocked eSIM device.
What is Roamsim?
What is Roamsim?
Roamsim is a data-only eSIM service for travelers, allowing internet access in over 150 countries without a physical SIM card. Plans include single-country for one country or multi-country for multi-destination travel, with automatic activation upon arrival and no start before actual use.
The eSIM installs via QR code sent by email after purchase on the web, compatible with all unlocked eSIM devices. Management via website for usage and recharges, hotspot allowed, no traditional calls/SMS but via data apps.
Plans overview
Countries covered by Roamsim
Coverage broken down by region. Tap a region to see its countries.
Our verdict
Roamsim offers affordable eSIMs for travelers in over 150 countries. Instant activation, no hidden fees, and responsive customer support for reliable connectivity everywhere.
Popular alternatives
Frequently asked questions
No, Roamsim is not a scam: it is a reliable, well-known eSIM with a 3/5 rating in our test and access to local 4G/5G networks (speed depends on local coverage). Just make sure your phone is eSIM-compatible before buying.
Roamsim covers many 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: Data-only, no native calls/SMS, No mobile app, web management only, Depends on local partners’ coverage, Duration and data volumes not publicly specified and Requires unlocked eSIM device.
It depends on your destination and budget: Roamsim scores 3/5 in our test, but the best value changes by country. Compare current deals in our comparator before choosing.
Yes, all plans allow tethering/hotspot to share data.
Data-only; use WhatsApp or FaceTime via data.
Only at first use in the destination, not at installation.
100% guaranteed if travel cancelled or unresolved technical issues.
Via My eSIMs on the site, within validity period.
All unlocked eSIM-enabled; check list on site.
Yes, use physical for calls, Roamsim for data.
What to do if Roamsim doesn't work?
Check eSIM compatibility, unlocked status and stable Wi-Fi; contact support with order.
Toggle airplane mode, roaming on/off, restart; select eSIM for data.
Normal before arrival; activate with roaming ON once on site.
Top-up via My eSIMs, prepaid service stops without extra fees.