Google Pixel 4 May Offer Improved Dual-SIM Functionality Like 2018 iPhones, Tips AOSP Commit

Google’s Second Pixel flagship is still a long time away, but It Seems That the upcoming smartphone might offer better dual SIM functionality Compared to the current crop and previous generation Pixel smartphones.

As per the recent commit changes seen from the AOSP (Android Open Source Project) Gerrit, the Pixel 4 might offer true dual SIM functionality which will enable users to select which SIM they need to utilize for managing messages and calls. It is thought that the Google Pixel 4 may bring support for Double SIM, Double Standby (DSDS) protocol that enables either of those two SIM cards to be used for making calls or receiving SMS, although not simultaneously.

The Google Pixel two along with also the Google Pixel 3, alongside their XL versions, technically provide dual SIM performance as they support a secondary eSIM. However, they follow the Double SIM, Single Standby (DSSS) standard, so the networks supplied by the physiological SIM and the eSIM cannot be in a working condition simultaneously and only the support given by one of them may be used at a moment. To the contrary, the majority of Android smartphones from third-party makers follow the Dual SIM, Double Standby protocol, where, the service provided by both the SIMs is live and users can define which one they want to use for calls, SMS and information. It now appears the Double SIM, Double Standby feature will eventually debut on Google’s smartphones starting with the Pixel 4, which is allegedly codenamed’Coral’ and has been allegedly seen on Geekbench previous month.

In fresh AOSP Gerrit devotes which were seen by XDA-Developers, there’s a mention of adding property worth for identifying support for double SIM functionality. However, what is worth noting here’s a comment with a Google employee in the same thread which claims that the 2019 Pixel will have double SIM performance and it will differ from the implementation on the Pixel 3 duo, where the double SIM functionality is limited.

The new developments indicate the Pixel 4 might introduce support for its Dual SIM, Double Standby (DSDS) protocol through the eSIM + physical SIM configuration, much such as the new breed of iPhones launched in 2018. A case can also be designed for the coming of Dual SIM, Dual Active (DSDA) support on the Pixel 4 that allows utilization of telephony and data services of the SIMs simultaneously, but it would depend if Google equips the Pixel 4 with dual radios. Moreover, Google also appears to be testing the activation of this feature for older Pixel smartphones, but it can’t be said with certainty whether the service for DSDS protocol will be enabled for your Pixel 3 and the Pixel 2.


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