The wearable UV hourglass that visually counts down your sunscreen's protection time in real-time.
No more guessing if it's time to reapply. Watch as the hourglass fills with color from bottom to top as UV exposure accumulates, creating an intuitive visual indicator of exactly when you're approaching sunburn danger.
You look at your wrist after 2 hours at the beach and see the hourglass is exactly 80% full — a vivid orange warning that you have 20 minutes of safe sun exposure left. You reapply sunscreen, press the device, and watch the hourglass visually drain back to empty, instantly resetting your protection timer.
Plus premium sunscreen subscription ($25/month)