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Guilherme Mazui

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What is the Difference Between Dual SIM and Dual Standby SIM?

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The main difference between Dual SIM and Dual Standby SIM lies in the functionality of the SIM cards when they are in use. Here are the key differences:

  • Dual SIM Standby (DSS): This type of device allows the user to specify which of the two SIMs can make and receive calls, while the other SIM remains inactive. Only one SIM card can be used at a time, and the phone has a single IMEI number.
  • Dual SIM Dual Standby (DSDS): In this case, both SIM cards can be used simultaneously for calls and messages, but only one SIM card can handle data at a time. When one SIM card is engaged in a call, the other SIM card is temporarily disabled.

In summary, a Dual SIM Standby phone allows you to use only one SIM card at a time, while a Dual SIM Dual Standby phone enables you to use both SIM cards for calls and messages simultaneously, but only one SIM card can handle data at a time.

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  • What is the Difference Between Dual SIM and Dual Standby SIM?
  • Comparative Table: Dual SIM vs Dual Standby SIM

    • Comparative Table: Dual SIM vs Dual Standby SIM

    Dual SIM and Dual Standby SIM are two different implementations of dual SIM technology in smartphones. Here are the main differences between them:

    Feature Dual SIM Dual Standby SIM
    Definition A device that can hold two SIM cards. A subtype of Dual SIM methods where both SIMs can be in standby mode but cannot be actively used at the same time.
    Active Connections Both SIMs can be active simultaneously. Only one SIM can be active at a time. The other SIM is inactive while one SIM is in use.
    Call Reception Both SIMs can receive calls and messages at any time. If one SIM is actively used for a call, the other SIM will not receive incoming calls or texts until the call ends.
    Hardware Usually has two sets of receivers, with each SIM card using its own receiver. Uses a single set of hardware (mainly receiver) for both SIM cards through time-sharing algorithms implemented in the software.
    Power Consumption Generally higher due to the use of two receivers. Generally lower as only one receiver is used.
    MicroSD Slot Compatibility Often compatible with microSD cards. Usually incompatible with microSD cards due to the use of the microSD slot for the second SIM.

    In summary, Dual SIM smartphones allow both SIM cards to be active at the same time, while Dual Standby SIM smartphones have both SIM cards in standby mode but only one can be active at a time. Dual SIM smartphones typically consume more power and may have reduced microSD slot compatibility compared to Dual Standby SIM smartphones.

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    Guilherme Mazui

    Guilherme Mazui is graduated in journalism from the Federal University of Minas Gerais (UFMG) and a master's degree in Communication from the University of São Paulo (USP). In addition, he has experience in advertising writing and has worked as a content editor in several companies.