# This smart pendant tells you exactly how long you can stay out before you get sunburn

> TL;DR “The Gem” is a smart pendant that tracks sun exposure and provides real-time data on your skin health. It also tracks UVA and UVB exposure and tells you how long you can stay out before you get sunburn.

- **Source:** [Android Authority](https://www.androidauthority.com/the90-gem-pendant-sun-exposure-tracking-3677845/?utm_source=gearopen.com&utm_medium=referral&utm_campaign=feed&utm_content=6a32973838abfe59f429fd82)
- **Published:** 2026-06-17
- **Category:** Phones
- **Tags:** #wearables #before #long #pendant #smart #stay #sunburn #tells
- **Canonical:** http://localhost:4321/a/6a32973838abfe59f429fd82

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_GearOpen's distilled summary. The full original article is published at Android Authority (source link above); GearOpen does not republish the source's full text._