With the size of devices in modern-day Shadowrun, a helmet could probably be a combination commlink/sensor array. Sure, it getting damaged would likely be costly, but the game doesn't have armor repair bills (something that'd be better off put in Lifestyle costs anyways) so no worry.
My character, Firebug, used the 6 capacity in her helmet to buy a Sensor Array, which according to the chart, had a max rating of 2 (counting it as "Headware" even though it'd also somehow be just as limited to put one in contact lenses or an RFID chip). It has a camera (which has Image Link and Smartlink), a microphone (no upgrades), an olfactory sensor, a motion sensor, ultrasound... Etc.
Hers still has a visible faceplate (though it's tinted so you can't see her face), but she could prettymuch just view the world entirely through the array and not lose out on anything while using EW in place of Perception (and thus being better at it). More or less the same as it would be for a rigger who's jumped into a drone, though not as precise.
In fact, if 4th edition TM echoes existed, I'd probably do something like buy the powers that would let her jump into the helmet sensors while still being fully conscious and in control of her body. That'd be neat.