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Will a Pixel 3 case fit on a Pixel 3a?

Google Pixel 3a
Google Pixel 3a (Image credit: Android Central)

Best answer: No. The Pixel 3a is very similar to the design of the Pixel 3, but because of some design upgrades including a slightly bigger battery, slightly larger screen, and the return of the headphone jack, the Pixel 3a is just different enough that Pixel 3 cases won't quite fit.

A brand new phone means brand new cases

In many ways, the Pixel 3a is nearly identical in design to the Pixel 3, but it's just different enough that a Pixel 3 case just won't work. The dimensions of the Pixel 3a are slightly taller and thicker than its predecessor, meaning Pixel 3 cases just won't fit — and even if you do squeeze the Pixel 3a into a Pixel 3 case, the volume and power buttons won't line up with the cutouts.

The added thickness is likely due to the slightly larger battery — now an even 3000mAh capacity, up from 2915mAh. The rest of the frame is slightly taller and narrower than the older Pixel 3 to accommodate the slightly taller 18.5:9 screen and the downward facing bottom speaker.

More critically, the Pixel 3a reintroduces the headphone jack which would mean that any Pixel 3 case would cover that right up — and we wouldn't want to do that, would we?

Marc Lagace was an Apps and Games Editor at Android Central between 2016 and 2020. You can reach out to him on Twitter [@spacelagace.