Pixel 9a quietly steals the 9 pro’s best unlock trick—no wake tap needed

One finger, zero taps: the Pixel 9a can now vault from a black screen straight to the home screen, a shortcut Google has kept chained to its $1,000 flagships since last fall.

The trick slipped in while nobody was watching

Reddit sleuths spotted the toggle earlier this week—Settings> Security & Privacy> Device Unlock> Fingerprint> Screen-off unlock—and within hours the thread ballooned with corroborating screenshots. The menu item was never announced in Google’s release notes for the March quarterly update, and the company’s own support page still lists the 9a as ineligible.

Functionally it is the same ultrasonic shortcut the Pixel 9 Pro shipped with in August: lay a registered digit on the sensor, the secure element fires, the panel lights up already unlocked. No power-button fumble, no swipe-to-wake stutter. Google yanked the option from early Android 16 previews, then restored it in December’s QPR2 only for the 9 and 10 lines, leaving the cheaper ‘a’ variants off the guest list.

Why the sudden generosity? Component overlap helps. The 9a uses the same Goodix optical module as the base Pixel 9, so firmware parity costs Google nothing. The real prize is data: every skipped wake reduces power-draw by roughly 12 mW per unlock cycle, according to internal metrics I saw at the Media Lab last year. Multiply that across millions of daily swipes and the battery savings scale fasterthan any silicon shrink.

Still, the timing reeks of catch-up. Samsung’s mid-tier Galaxy A55 has offered always-on fingerprint since One UI 5, and Xiaomi pushed the same to its $199 Redmi line eighteen months ago. Google’s tardiness undercuts its “AI-first” hardware narrative; if the machine-learning engine is so smart, why did it need three revisions to flip a Boolean flag?

Owners of older Pixels are already asking the obvious—will the Pixel 8 or 7a inherit the same? The optical sensor hardware checks out, but Google historically gates convenience perks behind a two-generation wall to nudge upgrades. Expect silence until the next Pixel feature Drop, then a quiet expansion once the Pixel 10 marketing cycle begins.

Bottom line: the 9a just became the cheapest Pixel that feels like a flagship in your pocket. Google won’t brag about it, but your thumb will notice the difference every single time you skip that extra tap.