Description

Use your watch's LED flashlight in new ways. • Morse: Type a message and your watch flashes it in Morse code. Adjustable speed, color and repeat. • Heart rate: The LED blinks at your heart rate; its color follows your heart rate zone, from green to red. • Metronome: Light and vibration at your tempo, with accented beats. • Motion: The more you move your wrist, the brighter the light — great for dancing. • Strobe: The LED's own smooth patterns (blink, pulse, beacon, blitz) at 3 speeds. • Breathe: The light rises as you breathe in and fades as you breathe out (4-4-4-4, 4-7-8, 5-5) — for relaxing. • My patterns: Build your own light sequences from colors and durations (3 patterns, 16 steps). • Sequence: Cycles through all of your watch's LED colors. • Christmas: Red and green alternate. The Lumi glance starts your last mode with a single tap. On-screen touch keyboard, big-tile home screen, 5 languages (English, Türkçe, Deutsch, Français, Español). Supported LED colors are detected automatically (some models only have white and red). Note: For fun and signalling only; not an emergency, rescue or medical device.

What is new

Version 1.0 • New modes: Heart rate, Metronome, Strobe, Breathe and My patterns (build your own light sequences). • Lumi glance: start your last mode with a single tap from the watch face. • New home screen order: Morse, Heart rate, Metronome and Motion come first. • More accurate metronome timing. • Heart rate mode uses your heart rate zones, so the app now asks for access to your user profile.

Screenshots

Lumi - Morse & Light · Screenshot 0 Lumi - Morse & Light · Screenshot 1 Lumi - Morse & Light · Screenshot 2 Lumi - Morse & Light · Screenshot 3 Lumi - Morse & Light · Screenshot 4

Supported languages (4)

Compatible devices (44)

Recent metric trend

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Snapshot dates
2026-10-27 → 2026-10-30