I've had my flask for 1 week of use so I figured I could share my thoughts so far. The tips included with the bottle say to start slow but of course I ignored that advice...heh heh. I can't be sure my herx symptoms were the result of my average of 5 bottles per day though because I also started taking methylene blue at a higher than recommended starting dose at the same. The herx reaction lets me know something is working and then I back off and build up from there but if you don't enjoy headaches, fatigue, and flu symptoms like I apparently do, then....start slow! I can't be sure of the physical benefits yet...partly because it's only been a week and also because of starting the MB at the same time. I'm usually plagued with constipation but after a week, it seems to be getting a bit better. I also seem to be sleeping better and I'm waking up feeling more rested with less brain fog. The bottle itself works well but as others have noted, the app isn't of much use to me. It gives you the ability to change the color which is helpful if there's more than one bottle in the house and you want to know which is yours. It also lets you set a beep for when the bottle is finished charging but mine has only beeped two times out of 45 cycles. (Update 6/30/2025. I went into the app and turned the sound option off and back on and it's been beeping at the end of each cycle consistently.) The app is supposed to keep track of your daily usage but I've noticed it rarely registers my use. Maybe future updates will address the bugs. Also, I don't find the reminders and protocols to be of any use to me...I know how much I want to drink and I don't feel I need reminders or encouragement to stay with it. I like the information included in the learning section of the app about hydrogen water, it's helpful and helps me to remember what the long term benefits can be. After using my flask for a few days, my wife and I decided we should get her one of her own rather than sharing one. The first one we received for her wasn't developing enough hydrogen evidenced by the lack of pressure relief at the end of the cycle. I was going to allow 48 hours for the charging membrane to fully hydrate as the directions suggest but then the LCD panel on the flask started to work intermittently so we exchanged it for a new one and that one works fine. I love the visual element of the electrolysis process and the ability to change the charging color. Just knowing the process is the result of water molecules releasing the hydrogen bond into the water as a gas feeds my inner nerd and makes staying hydrated feel like a science experiment...haha. I would've rated it a 5 but the app should function better and my wife's first flask was basically DOA. I'm glad it has a 5 year warranty but I believe it's prorated. We'll see how good it is if the time comes but in the meantime it feels good to know I'm staying better hydrated. Read more

I recently started using the Echo Flask Hydrogen Water Bottle, and honestly—it’s one of the most impressive “smart” bottles I’ve ever owned. On top of being a high-quality reusable water bottle, it actually infuses your water with molecular hydrogen, which feels like the next-level version of regular hydration. Here’s why I love it: Cutting-Edge Technology The Echo Flask uses advanced SPE / PEM electrolysis technology (with platinum-coated titanium plates) to safely generate pure hydrogen gas and dissolve it into your water, without harmful byproducts. Echo Water +2 Echo Water +2 According to its lab tests, it can reach up to 8 ppm of dissolved hydrogen. Echo Water +1 That’s a seriously high concentration — well within “therapeutic” range. Echo Water Premium Design & Materials The construction feels rock solid. It’s made from durable, BPA-free PPSU plastic, which is built to handle the pressure generated during hydrogen cycles. Echo Water +1 The grip is textured and secure, so even filled up it feels comfortable in the hand. Echo Water Smart Features That Motivate There’s a touchscreen on the bottle, and it’s Bluetooth-enabled, so you can pair with the Echo app to track your hydrogen cycles, monitor your usage, and set hydration goals. Echo Water The app integration makes drinking hydrogen water feel like more than just a habit — it feels like part of a wellness routine. Long-Lasting Performance It runs on a built-in rechargeable lithium-ion battery that supports 5–7 cycles on a full charge. Echo Water +1 A full “cycle” means running the hydrogen-generation process, so you’re not constantly recharging. Safe, Certified Output The hydrogen production is third-party verified. According to Echo Water, their lab tests consistently hit ~6 mg/L for a 10-minute cycle and up to ~8.25 mg/L after running two cycles. Echo Water UK Plus, it’s IHSA (International Hydrogen Standards Association) certified, which gives some real credibility to the performance claims. Molecular Hydrogen +1 Strong Warranty & Support They back the bottle with a 5-year warranty. Echo Water That’s a pretty generous guarantee for a techy hydration device, and shows confidence in its build quality. Wellness Potential While the research on hydrogen water is still developing, many users report improved energy, recovery, and even mental clarity. Echo Water Personally, I haven’t noticed instant “magic,” but I do feel like drinking from this bottle encourages me to hydrate more thoughtfully — plus, just using a high-end, science-backed gadget makes me feel more intentional about my wellness. A Few Things to Keep in Mind The 20-minute cycle for max hydrogen takes a little planning — it's not “press and drink immediately” if you want that 8 ppm peak. Echo Water The bottle weighs about 1 lb (empty), and more when it’s full, so it's not as lightweight as a basic reusable water bottle. Echo Water You’ll need to recharge the battery periodically, especially if you’re doing long or frequent hydrogen cycles. My Review About The price is on the premium side — this isn’t just hydration, it's a wellness investment. Overall Verdict If you’re someone who cares about more than just drinking water — you want performance, innovation, and a way to potentially boost recovery or antioxidant support — the Echo Flask is a phenomenal choice. It’s thoughtfully engineered, backed by solid science, and built to last. For me, it turned a simple habit into something a lot more interesting and meaningful. Highly recommend it to anyone curious about hydrogen water or looking to upgrade their hydration game. Read more

I went into this purchase with cautious optimism, thinking maybe the Echo Flask would offer some sort of tangible benefit. Unfortunately, it turned out to be nothing but a flashy gimmick. After a full month of using it consistently, I can honestly say I felt worse—not better—than before. Whatever claims this company makes about energy, wellness, or enhanced performance are completely unfounded. The design might look sleek, but beyond appearances, this device is absolutely worthless. I noticed no positive effects, no health improvements, no added benefit of any kind. In fact, it left me with a nagging sense of frustration that I’d wasted both my money and my time. To call this a disappointment would be generous—it’s a straight-up scam product. The marketing is clever enough to lure people in, but the reality is that the Echo Flask does nothing but sit there, reminding you of the cash you flushed down the drain. Save your money, skip the hype, and don’t get duped like I did. Read more

I originally started with the Evolv, which is a nice product but quite small at just 8 ounces, and I wasn't thrilled about the magnetic charging required. The Echo Hydration Flask, at 12 ounces, is a major upgrade and makes it much easier to stay on track with my daily water goals. The quality is top-tier, it's beautifully made, feels solid in hand, and performs exactly as promised. The included USB-C charging cable and adapter are a nice bonus — convenient and thoughtful, especially since many products don't include adapters anymore. The app could use some improvement; it's a bit clunky and not super functional beyond letting you change the colors and personalize your flask. That said, if you're consistent about drinking water, the app isn’t essential. I deducted 1 star for the app performance. The charge lasts through 7 to 8 full flasks, which is great for daily use. I was happy to get it at a Prime Day price, but honestly, it’s worth the full price. Super impressed with the design and build. I would however expected more from the app is it's janky. Looking forward to upgrades. Read more

It works by pushing electricity through platinum, and platinum is expensive, so this one and others are expensive. It’s easy to use, designed great and I trust it. And it’s working for me! It works a lot better than the tablets for me. Day 5 now and I do feel more energy. No grogginess, no stomach pains and I’ve been able to intermittent fast 16 hours between meals easily, which was very difficult before. Downloaded the app and right away it did 3 firmware upgrades, so I know they’re working on the software. I wish the battery was bigger, I drink more water in a day than it can process. I discovered I can run it while it’s plugged in and that drains the battery only a little, so I drink about 16oz from it in the morning before I unplug and take it with me to work. I wish I could turn off the light or the bluetooth to save battery. Heard about hydrogen water for decades, but never trusted the devices. I can’t easily test what they’re doing! It’s not a trusted brand name like Kirkland or Toyota, but Grant Cardone & Gary Brecka back this one, and Paul Barattiero seems legit so I trust this one is doing the thing it’s supposed to. And I do feel a difference, even though it tastes like regular water. Read more

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Although it’s a bit pricey, it produces more hydrogen than any other bottle, as far as I know. It has a small screen so you know how it’s doing and it even says when to start a cleaning process which is just a tap on the screen. The battery may not last through 10 cycles but I keep it on a counter and just plug it in if necessary. Read more