Four hours on the glasses, 20 with the case

Snap confirmed 4 hours of mixed use on a single charge at AWE 2026. The charging case holds four additional full charges, adding about 16 hours, for roughly 20 hours total from glasses plus case. Snap's newsroom post specifies four full recharges, not a continuous 20-hour runtime.

Four hours per charge isn't a lot, but Snap's Specs ship with a case that recharges the glasses four more times, landing you at 20 total hours before you need a wall outlet. For glasses you'd wear in bursts throughout a day, a walk, a workout, a commute, that math works out fine.