Google projects the Pixel 3a as an affordable premium smartphone that borrows a lot from its more powerful sibling – the Pixel 3 – in terms of the camera's performance. There are several trade-offs in this bargain but the Pixel 3a gets one feature that the Pixel 3 does not have and that is the 3.5mm headphone jack. Google says that the reason behind this design decision is to add more flexibility for users and give them the option to use older accessories with the Pixel 3a.
Google Pixel 3a has a headphone jack because it gives "flexibility" to users
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