The 8 Best UV Water Bottles to Keep You Hydrated on Hectic Days

While all of the water bottles on this list help protect your health by sterilizing the water inside, the LARQ Bottle PureVis 2 goes above and beyond by filtering out harmful chemicals and tracking your hydration, making it ideal for athletes trying to optimize their performance.

Neither of these features comes at the cost of the bottle's self-cleaning ability. As with all the bottles on this list, you can initiate the bottle's cleaning mode, but you don't ever have to, because it runs automatically every 2 hours.

If you're an athlete who wants to stay on top of their hydration goals while avoiding harsh chemicals, the LARQ Bottle PureVis 2 is a perfect fit.

The Tal Ultra Bottle is our pick for the best UV water bottle for those on a budget because it's around $30 yet offers many of the same features as the other bottles on this list. It sterilizes water in 3 minutes and keeps water cold for up to 24 hours. Additionally, the bottle's exterior is designed to be antimicrobial, meaning it helps prevent tiny living organisms called microbes from growing on the surface of the bottle. It comes in three colors — black, pink, and teal.

One downside we found in our research is that some users reported that the instruction manual was complicated and hard to read due to the small print size. But if you're looking for the most affordable UV water bottle, the Tal Ultra Bottle is one of the best options on the market.

The UVBrite Go Bottle is one of the more standard water bottles on this list. It doesn't come with any fancy apps or in a variety of sizes or colors. However, it is ideal for travel because it has a unique “blitz” cleaning mode designed for those dealing with dubious water on their adventures.

While most UV water bottles only come with one sterilizing setting, the Go Bottle features two. The first is the "Normal mode," which lasts for 180 seconds and is meant for everyday use. The second is "blitz mode," meant for water that may need more sanitation, such as water from rivers and streams or from places with lower water quality. To do this, Blitz mode takes a full 300 seconds. The brand boasts that it can reduce microbes by up to 99.99%.

The only potential downside to the bottle is that it's relatively small. It can only hold 18.6 fl ounces of water. While this makes it easy to carry around, it also means that you'll have to refill it frequently. Still, if you often find yourself exploring places that lack the sanitation systems many of us are used to, the UVBrite Go Bottle would make a great travel companion.

If you're going hiking or camping, having clean drinking water is important, especially if you're a long way away from a fully operational sink. At the same time, you want to keep your pack as light as possible so that you're not lugging around more weight than you need to. This is where the Glo UV Water Smart Bottle comes in. It's tiny — it only carries 400 mL (about 13.5 fl oz.) of water, making it the smallest on this list. And while this might be a disadvantage for someone looking to avoid repeatedly refilling their water bottle, it's ideal for a camper who doesn't want to overload their pack. Like many of the bottles on this list, the Glo keeps water cold for 24 hours and purifies it in 3 minutes. It doesn't do so automatically, however, so you will have to remember to push the button each time you dip it into a stream.

Despite this small downside, the Glo UV Water Smart Bottle's compact size makes it a great option for campers and anyone looking for a more lightweight option.

Therefore, having a UV water bottle that can handle beverages other than water can be helpful, which is why you might want to consider FIRSTHEALTH's UV Self-Cleaning Water Bottle. This bottle is one of the only ones we’ve found that explicitly claimed to be able to sterilize other beverages, such as sports drinks. And while you may not be concerned that your bottle of sports drink is contaminated by bacteria, no one likes a water bottle that smells, regardless of what drink is in it.

FIRSTHEALTH's bottle features one of the longest battery lives of any bottle on this list, lasting up to 500,000 sanitation cycles. If you're looking for a more personalized experience, however, this isn't the best choice, since it comes in only one size (18 fl oz.) and one color (black). But if your main goal is to choose what kind of drink to put in your water bottle, look no further than FIRSTHEALTH's UV Self-Cleaning Water Bottle.

The VSITOO AI Self-Cleaning Water Bottle S1 Max's AI cleaning scheduling features and built-in temperature monitoring make it the ideal choice for outdoor use. This bottle has all of the features you expect from a UV water bottle: It keeps water cold for 24 hours and sterilizes itself at the touch of a button. However, this bottle goes above and beyond. While you can initiate a cleaning cycle yourself, the bottle automatically maintains its cleanliness by using AI to create a cleaning schedule tailored to your hydration patterns. Additionally, you can create your own cleaning schedule in the VSITOO app. This is a great feature for those spending long days outdoors since you don't have to remember to sterilize the bottle every time you refill it.

The bottle's lid also monitors the water's temperature in real time. According to the instruction manual, it takes some time for the lid to register the current water temperature. To speed up the process, you can simply flip the bottle upside down to bring more water into contact with the lid. The lid also features a ring that changes color based on the water's temperature. It's blue if the water is 95 degrees F or below, orange from 96.8 degrees F to 122 degrees F, and red if it's higher than 122 degrees F. This makes it easy to identify an unsafe temperature before you even open the bottle.

Furthermore, the bottle can remind you to drink more water throughout the day through its connection with the VSITOO app. You can set up a reminder schedule in the app, but if you don't want to reach for your phone to stop the reminders, you can turn drinking reminders on and off directly on the lid.

By far the biggest complaint users had about this bottle in our research is its charging system. While most of the bottles on this list use a standard USB-C charging cable, this one requires a specialized magnetic charging cable. In theory, this is supposed to streamline the charging process, but many users found it inconvenient to have to remember to bring a special cord with them whenever they went somewhere with their bottle. Some even found the charger itself to be finicky.

Still, with the VSITOO AI Self-Cleaning Water Bottle S1 Max's many unique features, the charging system is hardly a deal breaker, especially since the bottle boasts a 30-day battery life once the device is fully charged. If you're looking for a bottle to bring on all of your outdoor adventures, this might be the best option for you.

Monos Kiyo UVC Water Bottle is a streamlined product perfect for the not-so-streamlined lives of busy students. The Kiyo UVC Water Bottle lacks the high-end tech of a bottle that tracks your hydration, and it doesn't have any additional filtering capabilities. Yet, it does the basics very well. The base of the bottle is silicone, so it's less likely to tip over in the middle of a lecture and disrupt the entire class with a loud clank. Plus, it only needs to be charged once a month with normal use, which is a great perk for students juggling dozens of responsibilities. The bottle comes in two sizes: 500 milliliter (mL) (about 17 fl oz.), and 750 mL (about 25 fl oz.), enabling students to choose whether to prioritize portability or capacity.

The bottle's biggest weakness is the nature of its two cleaning modes. While its 3-minute "Deep Clean" mode sterilizes the bottle, the standard 1-minute "Quick Clean" mode does not. It's not entirely clear from the website what the Quick Clean mode does, so this could be a drawback if you accidentally use it instead of the Deep Clean mode. That said, the Kiyo UVC Water Bottle will fit seamlessly into the lives of many busy people, including students rushing from class to class.

The Sans Self-Cleaning Water Bottle is ideal for parents and caregivers because it is equal parts simple and durable. It’s incredibly straightforward: There is one three-minute cleaning cycle option, which you initiate by tapping on the lid two times. As it cleans itself, a ring of tiny lights spins around and around on the lid, like the one you see on a computer as a web page loads. When the lid's battery is running low, the circle in the center of the dots, which is usually blue, turns red. You know it's done charging when the ring turns green. That's it. There's nothing else to using this bottle. I personally tested this product for several days and loved the simplicity. As someone who didn't even know UV water bottles existed before writing this article, I was thrilled by how easy it was to use.

To be clear, I am not a parent and don't care for children regularly, so I haven't directly seen whether the bottle can withstand a toddler's temper tantrum. But I suspect it can because I have put it through its paces. I have a physical disability, so I drop and knock things over frequently. This bottle has survived falling off my lap, my desk, and the top of the crunch machine at the gym. I even hit it with my wheelchair once. Though there are a few visible scratches, it's in perfect working order.

The only grievance I have with the bottle is the charging process. The bottle comes with a short USB-C charging cord. When the battery ran low for the first time, my initial instinct was to plug the lid into my phone charger. Nothing happened. Thinking it had something to do with the adapter, I tried plugging it into my laptop charger. Same result. Then I remembered just how short the charging cord it came with was. It was then that I reached for the equally short cord I use to charge my heated vest battery. It began charging immediately. This may just be a one-off experience with my charging cord, but it’s good to keep in mind.

But this is not a dealbreaker for me by any means. I love the bottle so much that it's currently sitting on the desk next to me as I write, even though the testing period is long over. It's replaced my everyday water bottle.

The Sans Self-Cleaning Water Bottle features the standard benefits of UV self-cleaning water bottles while being durable enough to withstand the hectic lives of parents (or anyone who often drops things, like me).