eSIM
Embedded SIM — programmerbart SIM-chip soldered direkt på motherboard. Carrier-profile downloadas remote, no physical-SIM-swap needed. Standard 2024+: iPhone 14+ i USA är eSIM-only, alla wearables.
Travel-friendly: airalo + similar offer prepaid travel-eSIMs, install via QR-scan. Dual-eSIM: many devices stödjer 2-8 eSIMs samtidigt, switch via menu. Carrier-perspective: lower friction för churn (easier to switch carriers), så vissa carriers historically resistance (kept physical-SIM-required-policies). EU: eSIM-mandate kommer 2025. Embedded UICC (eUICC): the chip itself. Apple Watch + cellular-iPads: eSIM-only since launch. Pros vs physical: faster activation, no chip-loss, multi-carrier-easy. Cons: harder to swap device → device-lockin-leverage för carriers.