Samsung says the new Android XR smart glasses it’s developing with Google will have a 9-hour battery life on a single charge.

Towards the end of Samsung’s Galaxy Unpacked keynote to launch the Galaxy Z Fold 8 and Flip 8 series, the company revealed a few key specs for the Android XR glasses it’s been working on. We’ve seen several leaks so far, but Samsung is clearly getting comfortable enough with the progress it’s made to begin pulling back the curtain a little further.

Samsung’s Android XR glasses will have a 9-hour battery life to get you through the day. With the case, the life expectancy goes up significantly. Samsung says the case can charge the glasses “more than 7 times.”

Pre-release estimates are always a bit generous, but a 9-hour battery seems like a decent place to start. Meta’s display smart glasses are rated for up to 6 hours before requiring a charge. But Samsung’s first pair won’t have a screen built into the lens(es).

As for the Samsung glasses case, having that extra battery power means leaving the case disconnected from a charger at night or on a trip. It’s hard to imagine the case would last users a full week with 9 hours a day, at max. And once the smart glasses are dead, recharging them means going without 20/20 vision for glasses-wearers.

• Related: Galaxy Z Fold 8 Ultra, Fold 8, and Flip 8 pre-order deals: where to buy

We got some more shots of the glasses during the keynote, too. Close-ups were shown of little features, like the hinge design and a privacy mode toggle built into the arm. How images were taken was reiterated – using a shutter button on the arm – but some more context about how those images are stored was added.

Samsung says pictures captured with the glasses will appear in the dedicated app. Copied text and other visual data can be sent to Samsung Notes on phones like the Galaxy Z Fold 8 Ultra. We can assume Samsung Notes is just one option among Google’s apps. Samsung also pushed its Galaxy Watch series, adding that the wearables can capture images and answer calls.

Nothing further than battery and tidbits were revealed, including when the Android XR glasses from Samsung will launch. We already knew the Android XR glasses from Samsung would be released “this coming fall.”

As for Samsung’s current releases, the Galaxy Z Fold 8 and Galaxy Z Fold 8 Ultra are official and available for pre-order on Samsung’s website.

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