Ulla

Clip-on light that blinks on any bottle to remind you to drink, with no app or charging.

Physical productone_timemade in SIeu

Ulla is a clip-on device that attaches to any bottle and blinks on a light/proximity-sensor schedule to prompt the wearer to drink water, without an app or a dedicated bottle purchase. It is made by a Slovenia-based company and is also sold through Amazon. The maker's hydration-increase claims are its own and are not independently verified here.

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