Plus+
Device Compatibility
- iOS / iPadOS Plug and play Plug and play
- Android Android models are numerous and complex; use the mobile app to check compatibility. Plug and play Plug and play
- HarmonyOS HarmonyOS is a deeply customized Android system; use the mobile app to check compatibility. Plug and play Plug and play
- HarmonyOS Next Plug and play Plug and play
Feature
- Material & finish The card body and contact material process affects wear resistance, bending behavior, and long-term reliability. Industrial-grade unibody wear-resistant encapsulation
- Capacity Storage available for eSIM profiles. The actual number of profiles depends on each profile's size. 1024KiB
- Designed profile count Estimated value for reference only. Expected maximum storage count in laboratory scenarios; actual storage count depends on profile size and additional resource usage. 13-26 eSIM
- COS version Card operating system version information. ESTKme COS 6
- EID prefix The EID prefix identifies the card issuer and number range, which can affect recognition by some platforms or carriers. 89049032 + 89034011
- App management Supports the ESTKme app for writing, switching, and managing profiles. Actual availability depends on device and operating system support. ✓
- STK management Supports basic switching and management through the SIM Toolkit menu for lightweight management without an external reader. Actual availability depends on the device's support for SIM Toolkit. ✓
- Bootstrap Function (iOS direct download) Built-in bootstrap capability for initial connectivity or configuration during setup and later management. ✓
- GSMA eSIM Supports standard GSMA consumer eSIM profiles provided by carriers through QR codes or activation codes. ✓
- SUCI Profile (5G SA) Supports installing 5G eSIM profiles that require SUCI capability. Actual use of 5G SA also requires simultaneous support from the carrier, location, device, eSIM, and service plan. ✓
- Lockdown mode Blocks additional services and interfaces except authentication, helping prevent advanced attacks from the core network or OTA channels. Designed for users facing extreme network security threats. ✓
Developer Features
- OMAPI management Supports card and eSIM profile management through Android OMAPI, depending on device and system support. ✓
- SoftSIM Supports SoftSIM capabilities for more flexible profile or card-application scenarios. ✓
- Applet sideload Supports sideloading JavaCard applications for advanced users and development scenarios. ✓
- Open-source management software Supports open-source management tools for auditability, adaptation, and community collaboration. ✓
- Self-built management software (ARA-M editing) Supports developers building their own management software with public interfaces or toolchains. ✓
- Activate native management Requires device support for reading removable eUICC; intended for advanced users only. ✓
This product is not specifically designed for secondary development. Developer features are provided in good faith as optional capabilities on an “as is” basis and do not constitute core product functionality, a sales commitment, or a basis for purchase. Before using any developer feature, confirmation must be obtained from a human customer service representative or by email. The feasibility, outcome, and suitability of such features depend on the device, operating system, and third-party environment. ESTKme does not guarantee that any specific development objective can be achieved and is not responsible for development failures or results that do not meet expectations.