The90

A wearable that measures the sun you actually got

San FranciscoConsumer hardwareScaling

PITCHED AT THE SAN FRANCISCO NIGHT ON 5 AUGUST 2026

Skin advice is generic because nobody measures the input. The90 is a UV-sensing wearable that tracks real exposure and turns it into skin health guidance rather than another number on a dashboard.

Everything about skin health is downstream of exposure, and exposure is the one variable that goes unmeasured. Advice is therefore given in generalities: wear sunscreen, avoid midday, reapply.

The90 puts a sensor on the person so the guidance can be specific to what they actually received. Getting hardware into the market at all is the hard part, and 500 units out is past the stage where it is still a rendering.

⟶ Others in the room

If The90 is your kind of company.

These founders pitched at the same startup events. The room is usually the reason people find each other.

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⟶ Two ways in

Companies like this one are in the room every fortnight.

FOR FOUNDERSTake the stage yourself.Five minutes, real questions from the investors in the room, and a listing here afterwards if you want one. San Francisco runs on a steady rhythm.

Apply to pitch →Nights in San Francisco

FOR INVESTORSGet the next ones first.The Biweekly Drop sends the companies that stood out on stage, with what they are building and where they got to. Same format as this page.

Join the drop →Browse the directory