SIM Card

What is SIM card?


Subscriber Identity Module (SIM) card is a portable smart card used mostly in cell phones that operate on the Global System for Mobile Communications (GSM) network. These cards hold the personal information of the account holder, including his or her phone number, address book, text messages, and other data.
Once a SIM card installed, phone service provider (also called a carrier) identifies the user and the mobile phone connected to network operator for communication services.


Watchdata’s SIM Card Product


With decades of experiences in information security and smart card industry, Watchdata provides a comprehensive range of SIM Card products, from high-end to low-end, to better serve the possible requirements of MNOs around the world.

Native USIM
Featured a native OS, Native USIM is an entry-level small capacity SIM card product for price-sensitive markets.
Capacity: 32K/64K/128K
Network: 2G/3G/4G/5G
Authentication: GSM/Milenage/TUAK/ CAVE
Functions: RFM/…

Multiple Application USIM
Multiple Application USIM is a multifunction SIM card product with large capacity, which is suitable for multiple SIM-based applications, such as transit, payment, access and identity-centric services.
Capacity: 64K/128K/256K/512K
Network: 2G/3G/4G/5G
Authentication: GSM/Milenage/TUAK/ CAVE
Functions: RFM/RAM…

SWP Card
SWP Card stores the card number and password on the SIM card, and connect to the NFC controller through the C6 pin on the card. This new SIM card can help the operator bind customers more stably.


  • Eco-friendly, cost-effective
  • Solutions for Card Body and Packaging
  • From standard SIM to the latest Nano-SIM, both shape and dimension of SIM card keep evolving with the development of telecommunication technology.


As one of the leading SIM card suppliers in the world, Watchdata offers a wide variety of card body form factors to help enhancing customer experience, improve subscribe loyalty and increase revenue generation.
Watchdata not only offers full range of SIM card packaging variations, including 2FF, 3FF and 4FF, but also a compatible product that support these variations all-in-one, which release MNOs from the complex stocking management issue.

Nano-SIM (4FF) Micro-SIM (3FF) Mini -SIM (2FF)

Smaller card body is a both environmental-friendly and cost-effective option for carriers. Watchdata provides a compliance solution that can provide up to ten SIM cards composed in one standard ID-1 card size to support brand promotion and differentiation of carriers.

Product modality

SIM Card
SIM Card
SIM Card

Card jack cutting form:

SIM Card

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