Concealed barometric vent for an electronic device

1. An electronic device, comprising:

an enclosure defining an interior volume, an engagement feature, and a port extending from an inner surface of the interior volume to a surface of the engagement feature;

a display at least partially positioned within the enclosure;

a watch band that is coupled to the engagement feature of the enclosure;

a bracket positioned within the interior volume of the enclosure; and

a vent assembly positioned between the bracket and the inner surface of the interior volume and comprising:

an air-permeable membrane defining a moisture barrier; and

a screen positioned along the air-permeable membrane,

wherein the watch band visually obscures the port when the watch band is coupled to the engagement feature.

2. The electronic device of claim 1 , wherein the engagement feature is a receiving slot that extends along a side of the enclosure.

3. The electronic device of claim 2 , wherein the port is positioned offset from a middle of the electronic device.

4. The electronic device of claim 3 , wherein:

the watch band includes a strap and a lug coupled to the strap; and

the lug and the engagement feature cooperate to releasably couple the watch band and the enclosure.

5. The electronic device of claim 1 wherein:

the display includes a touch sensor and is configured to receive a touch input;

the electronic device further comprises a crown at least partially extending through an opening in the enclosure;

the crown is configured to receive a translational input and a rotational input; and

the display is configured to depict a graphical output of the electronic device that is responsive to each of:

the touch input of the touch sensor of the display;

the translational input of the crown; and

the rotational input of the crown.

6. The electronic device of claim 1 , wherein

the vent assembly is configured to equalize an internal pressure of the interior volume with an external pressure of an external environment.

7. The electronic device of claim 1 , wherein the enclosure is impermeable to liquid and the vent assembly is substantially impermeable to liquid.

8. The electronic device of claim 1 , wherein:

the watch band comprises a lug; and

the lug is positioned at least partially in the engagement feature.

9. An electronic device, comprising:

an enclosure defining:

an interior volume;

a sidewall defining a slot configured to receive a watch band;

an outer port extending from an inner surface of the interior volume to a surface of the slot;

a bracket positioned within the enclosure and defining an inner port; and

a vent assembly secured between the bracket and the enclosure, the vent assembly having a duct region that forms at least part of a passage between the outer port and the inner port, the vent assembly comprising, within the duct region:

an air-permeable membrane defining a moisture barrier; and

a screen stacked along the air-permeable membrane.

10. The electronic device of claim 9 , wherein:

the vent assembly further comprises a deformable layer forming at least a portion of a sidewall of the duct region; and

the bracket is configured to compress the deformable layer.

11. The electronic device of claim 10 , wherein:

the bracket is coupled to the enclosure by a fastener; and

a cantilevered portion of the bracket extends from the fastener and defines the inner port.

12. The electronic device of claim 9 , wherein:

the screen is a first screen adjacent the outer port; and

the vent assembly further comprises, within the duct region:

a second screen stacked along the air-permeable membrane opposite the first screen.

13. The electronic device of claim 12 , wherein the vent assembly is configured to reduce a pressure differential between an interior volume of the enclosure and an external environment.

14. The electronic device of claim 13 , wherein at least one of the first screen or the second screen is configured to limit deflection of the air-permeable membrane within the duct region caused by the pressure differential.

15. The electronic device of claim 9 , wherein the vent assembly further comprises:

a film configured to form a temporary seal between an interior volume of the enclosure and both of the air-permeable membrane and the screen and having a punctured section that extends into the duct region.

16. An electronic device, comprising:

an enclosure defining a slot along an exterior side of the enclosure and having a port formed in a surface of the slot;

a vent assembly positioned within the enclosure and defining a duct region configured to channel air between the port and an interior volume of the enclosure, the vent assembly comprising:

an air-permeable membrane extending across the duct region and defining a moisture barrier; and

a screen between the air-permeable membrane and the port; and

a watch band positioned at least partially within the slot and at least partially overlapping the port.

17. The electronic device of claim 16 , further comprising a dial configured to receive rotatable and translatable input.

18. The electronic device of claim 16 , wherein the vent assembly further comprises an overmolded layer defining sidewalls of the duct region and molded over at least a portion of the screen.

19. The electronic device of claim 18 , wherein the screen comprises a mesh layer having a group of intertwined structures.

20. The electronic device of claim 18 , wherein:

the electronic device further comprises:

a display at least partially positioned within the enclosure;

a cover covering the display; and

a touch sensor configured to sense a touch input applied to the cover; and

the display is configured to depict a graphical output that is responsive to the touch input.