Circadian
Circadian Summary
Circadian is a mobile Android app in Personalization by Fondor Labs. Released in Jul 2026 (recently released ago). Store last updated Jul 18, 2026
Circadian SDKs Summary
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App Description
Clean Wear OS watch face with themes, auto day-night & efficient AOD
Circadian : a watch face that adapts to your day.
Circadian is a minimalist Wear OS watch face (API 34+) designed to look clean, with a unique design. It automatically transitions between a bright Day mode and a calmer Night mode, so your watch always matches the moment.
You can even customize the timing as per your preference.
Key features:
🎨 10 built-in themes
Choose from 10 carefully designed color themes to match your style or your band. Each theme comes with a light face and dark face variant.
🌗 Automatic Day & Night switching
Set your own morning and evening windows (e.g. 4:00 AM–9:00 AM and 5:00 PM–10:00 PM), and Circadian will automatically do the transition.
🔋 Ultra-efficient Ambient mode (AOD)
Circadian's always-on display is built for low OPR (on-pixel ratio) so it looks sharp without draining your battery — pixel-perfect, all day.
⌚ At-a-glance info
Date, weather, heart rate, and step count are all shown clearly around the dial, so you get what you need without unlocking your phone.
Compatible with Wear OS (API 34+). Developed by Fondor Labs.