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eSIM vs Roaming: The Real Cost of a 7-Day Trip

· Samth eSim Team

Travel-eSIM marketing leans hard on "save money on roaming." But by how much? We ran the numbers for a real 7-day trip to Istanbul.

The scenario

A 7-day trip from the US to Türkiye. Usage: maps, WhatsApp, photo backups, occasional video calls. Around 4 GB total over the week — typical for a tourist who isn't streaming Netflix.

Option A: home-carrier roaming

A US carrier's international day-pass: roughly $10/day. 7 days = $70. You get whatever speed the local carrier gives roamers (usually throttled after 1 GB/day).

Option B: pay-as-you-go roaming

Same carrier, no day-pass: typically $2.05/MB outside North America. 4 GB at that rate = absurd. Don't do this. Ever.

Option C: travel eSIM (Samth)

Türkiye 5 GB / 30 days plan: $8.99. Full LTE speeds on Turkcell. No throttles, no surprise charges. Total trip cost: $8.99.

The math

  • Home roaming day-pass: $70
  • Pay-as-you-go roaming: $8,000+ (yes, really)
  • Samth Türkiye eSIM: $8.99

Travel eSIMs save you 87% vs the day-pass, and that's the cheapest roaming option. The break-even for any trip longer than 1 day is firmly on the eSIM side.

When roaming makes sense (rarely)

  • You're abroad for less than 24 hours
  • You absolutely need to receive calls on your home number with data simultaneously
  • Your destination doesn't have travel-eSIM coverage (almost nowhere left)

The bottom line

For 99% of trips, a travel eSIM beats roaming. Install before you fly, scan the QR, land online.