

Buy anything from 5,000+ international stores. One checkout price. No surprise fees. Join 2M+ shoppers on Desertcart.
Desertcart purchases this item on your behalf and handles shipping, customs, and support to Vanuatu.
💧 Stay hydrated, stay ahead — don’t be a cactus!
ULLA is the world’s first smart hydration reminder that clips onto any water bottle, using advanced US Navy blinking technology and sensors to prompt hourly water intake. With a universal fit, 6-month battery life, and no app required, it’s the perfect office-friendly gadget trusted by over 500,000 users to boost hydration, energy, and wellness effortlessly.











| ASIN | B07G2C1T69 |
| Battery Type | CR2032 (Non-rechargeable) |
| Best Sellers Rank | 60,335 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) 601 in Cycling Bottles |
| Brand | Ulla |
| Brand Name | Ulla |
| Colour | Cactus |
| Customer Reviews | 4.4 out of 5 stars 2,368 Reviews |
| Item Type Name | ULLA Hydration Reminder: Don't Be a Cactus |
| Item Weight | 0.01 Pounds |
| Item weight | 0.01 Pounds |
| Manufacturer | ULLA |
| Manufacturer Part Number | ULLACACTUS |
| Manufacturer Warranty Description | 2 years. |
| Material | Plastic |
| Material Type | Plastic |
| Model Number | ULLACACTUS |
| Number of settings | 1 |
| Smart Home Compatibility | Not Smart Home Compatible |
| Unit Count | 1.0 count |
L**U
Great little gadget that really does work.
A great little reminder to get that hydration in. The flashing light picked up by movement is really noticeable and does do its job. I bought this for my Son who has Cerebral Palsy and one symptom of that is he doesn't get the signals that he is thirsty so this is a fantastic aid for that. I bought it when it was on offer for half price, I think! I wouldn't have bought it at full price then but probably would now I know it does its job. Also, my son had an acne problem, he was under a specialist for it and since he has upped his water, his skin has literally cleared up, it took around 8 weeks of constantly drinking water throughout the day, all day every day but the results are amazing. So drink more water folks, it's good for you 😉
K**K
i bought this for our great nan, she is 94 and keeps forgetting to ...
i bought this for our great nan, she is 94 and keeps forgetting to drink, she hasn't used it yet as she is currently in the hospital but as soon as she comes out she is going to be using it. i have tried it myself for two days and i must say that this little thing has really made me drink more, it flashes when you got to drink and it wouldn't give up so you feel i better do it just so it stops blinking, once you had a drink it has a little flash light blink once just to say well done and from that little thank you feel , i feel very much appreciated for all my efforts. i can't fault the product i think it is fantastic and i think it is going to be amazing help and reminder for our nan.
I**O
I love this product
I love this product, although I do not believe the light is able to sense (as they claim) when you're not in the room and it keeps flashing all the times.
D**A
Ulla Smart Hydration Reminder
I bought the ULLA Light up Water Bottle Reminder for about £21.02 on Amazon. It’s a small attachment that lights up to remind you to drink water regularly, and it fits different bottles with a silicone band. It’s quite simple to use since there’s no app or setup, just attach it and go. The light is subtle and not annoying in the office. It feels handy for staying hydrated, though it’s very basic and the band can be a bit fiddly at times.
B**A
It works!
In the office I drank a lot of water, working from home I’m more sketchy remembering to fill my bottle. I was getting headaches I knew largely from not drinking brought water. Saw this and thought maybe a gimmick but let’s try. It 100% works. I will be at my desk and it flashes. When I finish the bottle I go straight off and fill it. So if you’re struggling to remember to drink this little thing will help you.
P**A
Good idea.
Great idea as I never feel thirsty but it doesn’t always work.
A**Y
Great hydration reminder
Excellent reminder for an elderly friend to maintain hydration
N**S
I love this little device
I had purchased one of these a while back and loved it, but somehow managed to lose it between home and work. I've been suffering from headaches again, and I tend to get them when I'm not drinking enough water, so I decided to get another one. If you are like me and forget to drink water, as much as you have good intentions to do so definitely get one. I had tried to put reminders on my phone, but then you pick up your phone, get distracted by it and lose focus on what you are doing. This way, whenever I've not drunk in a while, it flashes at me and I take a swig of water and get back to what I was doing. LOVE IT!
Trustpilot
1 month ago
1 month ago