An In-Depth Look at WAATR’s PureMax 4D (40 oz.) Water Bottle

Product Review Summary

The WAATR PureMax 4D is a water bottle that takes hydration to the next level, filtering out harmful chemicals, microplastics, and heavy metals. It's a bit pricey, but the convenience of its UV sanitizer, interchangeable filter, and durable build make it a solid choice for those who want to sip on the purest water. Just be ready to tilt it back for a drink, and it might squeak a bit when you do.

Ratings

  • ★★★★★

    The PureMax 4D, made from pro-grade stainless steel, features triple insulation and a durable powder-coated finish for excellent temperature retention. Its wide mouth can easily fit ice cubes, while the rainbow handle ensures effortless portability. Moreover, it offers safe charging via a port-less magnetic charger with a 360-degree water seal, and it's TSA pre-approved for travelers on the move.

  • ★★★★★

    The PureMax 4D sets itself apart with its unique 4D Purification™ technology, employing strategically positioned Dual UV-C LEDs for an added layer of purification before standard filtration. This water bottle effectively removes microplastics, heavy metals, and various chemicals, including harmful PFAS, making your water exceptionally clean. Activating purification is easy—press the activation button twice for a 1-minute UV-C LED cycle, and the indicator light turns green when it's done. For Ultra-Pure Mode Purification from suspect sources, press the button three times for a 3-minute cycle. The bottle also offers a self-cleaning function, but disabling it is recommended to preserve battery life. Remember to prime the filter by soaking it for 15 minutes, then flush it under running water for 2 minutes before use.

  • ★★★★★

    Charging this water bottle is easy – the magnetic charger attaches effortlessly to the top and connects via USB to your computer or an outlet. It takes around 3-4 hours to fully charge, with an orange light during charging that turns green when it's complete. While on the go, you can check the battery status by pressing the activation button: green means over 40% charge, orange indicates 11% to 39%, and red signals a low battery from 1% to 10%.

  • ★★★☆☆

    The PureMax 4D water bottle stands out for its durability compared to other bottles. It features user-friendly charging and a convenient UV sanitizer. You can even use it to sanitize objects like keys or phones, although I personally don't foresee using this feature often. It also offers a Drink Water Reminder, but I typically turn it off to save battery. However, there are a few drawbacks, including the need to tilt the bottle for drinking since the cap doesn't function as a straw. The cap's time-dependent flow regulator can make it slow to drink large quantities, and it emits slight squeaking sounds while drinking. Additionally, there's no indicator for when to change the filter.

  • ★★★★☆

    The PureMax 4D starts at $189 for the 40 oz. size, making it relatively expensive compared to alternatives. It's a suitable choice if you highly value extremely pure water with the removal of heavy metals and microplastics. However, if budget is a concern, you might want to explore their more affordable CrazyCap Pro product instead.

Pros:

  • Top-tier water purification: removes microplastics, heavy metals, and harmful ‘forever chemicals’

  • Durable pro-grade stainless steel with triple insulation

  • Easy charging process with long battery life (lasts about 1 week)

  • Easy to turn on purification mode

Cons:

  • Higher price point

  • Must tilt back water bottle to drink

  • Emits a slight squeaking sound when drinking

  • No built-in indicator to remind users when to change the filter


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WAATR PureMax 4D 40 oz. Review

After listening to several podcasts highlighting the presence of heavy metals and potentially microplastics in tap water, I've spent the past year on a quest to discover water bottles capable of purifying my water, ensuring I stay hydrated with the cleanest and most sanitized water possible. That’s why I was so excited to get my hands on the PureMax 4D from WAATR and put it to the test.

The following is a review of the 40 oz. WAATR PureMax 4D in the color Onyx.

First Impressions

Upon receiving my WAATR PureMax 4D water bottle, I was pleasantly surprised by its branded packaging. However, upon unboxing the bottle, I found myself slightly overwhelmed by all the information in the manual detailing information on charging and how to use the self-cleaning feature. Since I'm usually one for a quick grab-and-go approach, I made a point to set aside some time to sit down with the manual and grasp how this travel water bottle operates before taking it along on my adventures.

Quality of Materials

Crafted from pro-grade stainless steel, the PureMax 4D has triple insulation and a superior powder-coated finish for maximum durability and temperature retention. Its wide bottle mouth allows you to easily add ice cubes to keep beverages cold and comes with a convenient rainbow handle for easy portability. In addition to the bottle, PureMax offers safe charging with a port-less magnetic charger, providing a 360-degree water seal for peace of mind. Additionally, these bottles are TSA pre-approved, making them the ideal travel companion for those constantly on the go.

Water Purification Technology

This is the aspect where the PureMax 4D truly distinguishes itself from other self-cleaning water bottles. Known as 4D Purification™, the water purification technology in this bottle uses Dual UV-C LEDs positioned strategically to provide a time-dependent treatment to the water prior to its standard 3-Dimensional filtration. This results in an extra layer of purification for the water that flows through the spout. 

TL;DR — This water bottle cleans the hell out of your water by filtering out microplastics, heavy metals, and various chemicals including harmful ‘forever chemicals’ like PFAS. Activating the purification process is simple – just press the activation button twice, and the UV-C LED will run for 1 minute, with the indicator light changing from blue to green upon completion. For Ultra-Pure Mode Purification from questionable water sources, press the button three times to run the same UV-C LED for three minutes. There's also a self-cleaning function that activates every hour for 15 seconds to maintain bottle hygiene, but I recommend disabling this to conserve battery life, as it can drain the battery quickly.

Note that the water bottle comes with two filters, but you’ll need to prime the filter first by soaking it in a bowl of water for more than 15 minutes before use. Once it is done, flush the filter under running water for 2 minutes and place it back into the lid.

Charging

Charging this water bottle is a straightforward process. The magnetic charger easily attaches to the top, and you can connect it to your computer or an outlet via USB. It took approximately 3-4 hours for my bottle to reach a full charge, during which it emits an orange light, changing to green once charging is complete. When you're on the go, you can check the battery status by pressing the activation button once: green indicates 40% or more charge remaining, orange suggests 11% to 39%, and red signifies a low battery level of 1% to 10%.

Overall Design

In comparison to other water bottles, the PureMax 4D is heavy-duty. What stands out for me is its user-friendly charging and UV Sanitizer activation. Additionally, it offers the flexibility to sanitize objects such as keys or phones by placing them inside and pressing the button three times to activate Ultra-Pure Mode. While this feature is convenient, I personally don't anticipate using the bottle for sanitizing other items. There's also a Drink Water Reminder option, but similar to the self-cleaning feature, I usually turn it off to preserve battery life.

I also wanted to mention a few drawbacks to the PureMax 4D. Firstly, it requires tilting the bottle back to drink as the cap doesn't function as a straw. The time-dependent flow regulator in the cap causes water to trickle out, making it a bit challenging to consume large quantities quickly. Furthermore, it makes subtle squeaking sounds while drinking, and there's also no indicator that lets me know that I should change the filter.

Value for Money

With a starting price of $189 for the 40 oz. size, I find this bottle to be relatively costly when compared to other options. Unless you're someone who places a high priority on achieving exceptionally pure water with the removal of all heavy metals and microplastics, you might consider opting for their more affordable CrazyCap product instead.


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The Bottom Line

The PureMax 4D water bottle by WAATR is a perfect choice for individuals who prioritize drinking the purest water possible. If you have the budget to invest and don't mind the need to tilt the bottle or the occasional squeaking sound, then this water bottle suits your needs. Activating the Pure Mode is straightforward; it simply requires some time spent reviewing the manual and preparing the filter before you're ready to enjoy the benefits of this water bottle.

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