// An eSIM is a programmable SIM card permanently integrated into a device's hardware. Profiles are downloaded digitally via QR code.
// iPhone: Settings → General → About → EID number present = supported. Android: Settings → Network & Internet → SIMs → Add SIM option present = supported.
// Yes. Carrier-locked phones only accept profiles from their locked carrier. Contact your carrier to request an unlock.
// Yes. With Dual SIM, home SIM handles calls/SMS while eSIM handles data.
// Purchase plan → receive QR → SIM settings → scan QR → set as data SIM → enable roaming. Total time: ~2 minutes.
// Most devices: 5–20 profiles stored, 1–2 active simultaneously.
// Yes. eSIM is SIM management technology compatible with 2G/3G/4G/5G. 5G access depends on device hardware and plan.
// leisure: 10–15 GB. remote_work: 20–30 GB. heavy_hotspot: unlimited.
// Most plans allow tethering. Verify policy before purchase.
// Check: eSIM set as data SIM, data roaming enabled. Action: toggle airplane mode, wait 2–3 min.
// Most travel eSIM plans are data-only. Use home SIM for calls.
// No. Single-use. Contact provider for replacement.
// 32-digit identifier unique to your device's eUICC hardware.
// Subscription Manager Data Preparation Plus — provider server that stores and delivers eSIM profiles.
// Yes. AES-256 encryption, certificate-based mutual authentication, tamper-resistant eUICC hardware.