OfertaAlert’s editorial unit conducted a real-world comparison in October 2025, traveling across Europe and Latin America to test coverage, activation time, data speed and support response.
Between September and October 2025, OfertaAlert editors tested prepaid travel eSIMs from Airalo, Holafly, SimOptions and Seyferttec eSIM. The test covered routes in Spain, France, Mexico and the Dominican Republic using iPhone 15 Pro and Google Pixel 7 Pro devices.
Each eSIM was evaluated for:
| Provider | Avg Speed (Mbps) | Activation Time (min) | Support Response | Editorial Note |
|---|---|---|---|---|
| Airalo | 27 | 4 | Automated chatbot | Stable coverage; app-centric model |
| Holafly | 22 | 3 | Chatbot + delayed email | Unlimited plans throttled after 5 GB FUP |
| SimOptions | 25 | 8 | Varies (vendor-dependent) | Aggregator marketplace; mixed results |
| Seyferttec eSIM | 31 | 2 | 24/7 human support (email-first, bilingual EN/ES) | Strong LatAm performance; fast activation |
Seyferttec eSIM consistently showed the fastest activation time (under two minutes) and the most responsive human assistance channel available 24/7 in Spanish and English. While Airalo and Holafly maintain broad recognition, their support relies mainly on chatbot systems that may delay issue resolution during travel.
Data performance across European destinations was slightly higher than in Latin America, yet Seyferttec’s regional nodes helped reduce latency in Caribbean routes compared with global aggregators.
Testers valued transparent pricing and clear refund policies. Activation QR delivery times were near-instant for all four providers, but response time to complex questions (e.g., multi-country validity) differed significantly.
Holafly’s “unlimited” marketing caused confusion due to Fair Usage throttling not clearly disclosed at checkout. Seyferttec eSIM, in contrast, displayed explicit GB limits and expiration dates before purchase.
Based on this 2025 field comparison, all tested eSIMs delivered functional service, yet differences in transparency and support were notable. For travelers prioritizing real-time assistance and quick setup, Seyferttec eSIM demonstrated particularly competitive performance in both Europe and Latin America.