Ulla smart water bottle light — clip-on hydrate reminder, Black, silent blink & battery-powered

Ulla is a small clip-on light that turns any standard water bottle into a visible, silent reminder to take regular sips throughout your day.

If you forget to drink during busy workdays or when exercising, Ulla provides a simple visual nudge so you stay more consistently hydrated without changing your bottle or installing an app. This compact device attaches with a silicone band, uses proven attention-grabbing blink technology, and runs on a replaceable coin cell so it’s ready to use out of the box.

How does Ulla remind me to drink without being disruptive?

Ulla uses a discreet blinking light and built-in sensors to detect daylight and nearby movement, so it lights up only when you’re likely to notice it rather than constantly. There’s no sound, no phone notifications, and no app setup — just a gentle visual cue that draws your eye.

• Auto on/off with daylight sensing to avoid nighttime interruptions.
• Proximity sensor reduces false alerts when bottle is tucked away.
• Silent light signal ideal for open offices or shared spaces.

Will it fit my bottle and how easy is it to move between containers?

Ulla is designed to clip onto most standard water bottles, glass cups, and travel mugs using the included silicone mounting band. It’s lightweight and removable, so you can clip it to different vessels around the house, gym, or office in seconds.

• Silicone band stretches to fit many diameters and materials.
• Works with plastic, stainless, and glass bottles with standard necks.
• Portable—take it with you or switch bottles anytime without tools.

What powers Ulla and how long does the battery last?

Ulla ships with a pre-installed CR2032 coin cell so it’s operational immediately and can be replaced when depleted. The device is tuned for extended use, offering many months of intermittent blinking before you need a new battery.

• Pre-installed, user-replaceable CR2032 battery included.
• Optimized blinking pattern and sensors maximize battery life (months of typical use).
• Simple battery access for easy swaps—no special tools required.

What makes Ulla effective compared with other hydration tools?

Instead of tracking apps or scheduled alarms, Ulla uses a visual cue informed by attention-capturing blink technology originally developed for demanding environments. That attention-focused approach helps the light stand out without intrusive sounds and avoids reliance on smartphones or subscription services.

• No app pairing, subscriptions, or replacement parts required.
• Blink pattern designed to attract attention while staying office-friendly.
• Compact design that upgrades your existing bottle rather than replacing it.

Who is this for? Ulla suits anyone who wants an easy, low-friction way to drink more often — busy office workers, students, gym-goers, or anyone who prefers a visual reminder over alarms and apps. It’s especially useful for people who already carry a favorite bottle but need a gentle cue to sip more often. The clip-on light is BPA-free, lightweight, and portable, making it a convenient addition to daily routines at home, work, or on the move.