Jetpac

Jetpac, based in Singapore, aggressively undercuts the eSIM market with entry-level pricing starting at just $1 for 1GB of data valid for four days. The value angle doesn't stop there: customers also get access to airport lounges when flights experience delays over 60 minutes. This perk provides real comfort during unexpected wait times, giving you a quiet space and often complimentary food and wifi.

For short trips or travelers on a shoestring budget, Jetpac delivers practical connectivity at a hard-to-beat price. The four-day validity window works best if you're doing a quick visit or connecting through Japan to another destination. The lounge access bonus feels like a genuine value-add rather than empty marketing, especially if you fly frequently enough to encounter delays.