eSIM vs Local SIM Card — Honest Comparison

eSIM vs Local SIM Card — Which Is Better?

Buying a local SIM card has been the go-to move for budget travelers for years. But eSIM technology has changed the equation. Here is an honest look at both options.

Local SIM Advantages

  • May include local number: Useful for receiving calls from local businesses
  • Often cheap: Local SIMs in some countries are very affordable
  • Can include calls/SMS: Some local SIMs include voice and text

Local SIM Disadvantages

  • Time to buy: Finding a shop, waiting in line, registration paperwork
  • Registration requirements: Many countries require passport or ID to buy a SIM
  • Language barrier: Trying to buy a SIM in a country where you do not speak the language
  • Physical swap: Remove your regular SIM, risk losing it, lose calls/texts on your number
  • One country only: Local SIMs work in one country. Multi-country trips need multiple SIMs.
  • Expiry: Local SIMs and their data packs expire — unused data is lost

eSIM Advantages

  • Instant activation: Set up before you even leave home
  • Keep your number: Dual SIM means your regular SIM stays active
  • Multi-country: One eSIM works in 200+ countries, automatically
  • No physical SIM to lose: No tiny cards to manage
  • No expiry: Balance lasts forever with Bcengi
  • No shop visits: Everything done from your phone

Cost Comparison

  • Local SIM in Thailand: ~$5–15 for 10–30 GB (7–30 days) — data expires
  • Bcengi in Thailand: $1.81/GB, pay only for what you use, balance never expires
  • For heavy use in one country for a long stay, local SIMs may be cheaper
  • For short trips, multi-country trips, or moderate use, eSIM typically wins

When to Choose What

  • Choose eSIM for: short trips, multi-country trips, convenience, keeping your number
  • Choose local SIM for: long stays in one country with heavy data use, needing a local number

Bcengi TravelPass is a pay-as-you-go eSIM — you only pay for data you use, with no bundles, no expiry, and no contracts. One eSIM works in 200+ countries.

Ready to stay connected on your next trip? Get your Bcengi eSIM at bcengi.com — set up in minutes, pay only for what you use.