eSIM Performance Tests

Coming in Stage 2. eSIM Observer is building a structured real-world testing program to measure what providers’ marketing copy cannot: actual throughput, latency, and roaming reliability in the field.

What Will Be Measured

• Download and upload speed — median and 90th-percentile across multiple test locations per country
• Roaming handoff — how quickly a plan connects after crossing a border
• Idle data drain — background data consumption on a travel eSIM vs. no connection
• Activation time — QR scan to first working connection, per provider
• Coverage gaps — rural and transit corridors where advertised coverage underperforms

Methodology Commitment

When the first results publish, the full methodology — device model, OS version, test dates, locations, number of runs, and statistical treatment — will appear alongside the data. No cherry-picked runs, no provider-supplied figures presented as independent measurements.

Stay Updated

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