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The Embr Wave bracelet claims to regulate your body temperature—does it work?

We wore this device to see if it delivers.

Credit: Reviewed / Jackson Ruckar / Naidin Concul-Ticas

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Maybe you’re a person who always runs hot. Or cold. The fact is, no temperature will ever feel comfortable to everyone. One person may prefer 65 degrees with 65% humidity, while another would be more comfortable in warm, dry heat. HVAC technology can precisely control the indoor environment, but you might have to win a thermostat battle to suit your exact preference, and that personal comfort level could go out the door if you, well, go outside.

At this point in society’s technological evolution, you would think we’d have an easy way to control the atmosphere in our own personal space. Companies are trying. Enter the Embr Wave, a marvelously weird device that promises to regulate your body temperature through your wrist, for the not-so-bargain price of $299. Though the company recently launched the Embr Wave 2, a sleeker version of the original product, we tested the OG model launched by the company in 2017 to get a feel for its overall technology and heating/cooling capabilities.

Pressing a button on the device will change the temperature of the Embr Wave.
Credit: Reviewed / Jackson Ruckar

Pressing a button on the device will change the temperature of the Embr Wave.

What is Embr Wave?

The wrist-worn device—just a little bigger than an Apple Watch—comes with an inch-wide magnetic metal strap that fastens around your arm. You wear the Embr Wave on the inside of your wrist, directly against the pulse point said to be so sensitive to temperature change that targeting it with heat or cold can thermoregulate the entire body. Pressing a button on the Embr Wave makes it heat up (or cool down) against your wrist, which then—according to the manufacturers—warms (or cools) the rest of you. There's also an app you can use to fine-tune the temperature.

Does Embr Wave work?

I wore the Embr Wave on and off for a few weeks to see whether or not it could keep me cool in a heat wave or warm me up in overzealous office air conditioning. The verdict: The original Embr Wave is a nifty idea built into a clunky, awkward, and expensive wearable that doesn’t deliver.

In one sense, the Embr Wave does exactly what it claims. When you wear the device, a spot on your wrist will feel the warmth or coolness it emits, and it’s a pleasant, even intriguing, sensation. The cooling phase, in particular, contradicts your natural expectation that a surface will warm when touched, so there’s something counterintuitive and interesting about it.

The Embr Wave app lets you control the temperature with a little more precision.
Credit: Reviewed / Jackson Ruckar

The Embr Wave app lets you control the temperature with a little more precision.

But the temperature change, to me at least, seemed limited to the area on my wrist. The Embr Wave didn’t—and can’t—change the surrounding environment or lower the dew point. It didn’t calm my heart rate after walking up four flights of stairs or prevent a shiver in icy office air. If you’re in a stuffy subway car, it won’t cool you down enough to stop that bead of sweat from slipping down your back, no matter how low you set the temperature.

What do others think of the Embr Wave?

I can’t speak for people who have internal issues with thermal regulation. My body temperature seems to regulate itself normally; I've only had issues when suffering from fevers and one unfortunate hypothermia incident after a day of skiing. People who are susceptible to minor weather changes might find the Embr Wave more useful than I do.

My coworker Melissa Rorech is one of those people. When she saw what I was testing, she became excited and asked to borrow it to counteract her uncomfortably hot train rides to and from the office. At 9:30 PM that night, I got a message with her first, punctuation-heavy reaction: “I don’t like this!!!!!” She elaborated the next morning, “I was hoping the Embr Wave could keep me cool and sweat-free on my commute to and from work, but alas, it did next to nothing. If anything, the slight increase of cold is so shocking that it doesn’t even feel good. It doesn’t travel through my body at all, so it’s just my wrist that’s affected.”

The Embr Wave weighs about as much as an Apple Watch.
Credit: Reviewed / Jackson Ruckar

The Embr Wave weighs about as much as an Apple Watch.

Our colleague Jon Chan agreed. “In my opinion, this device is akin to Tiger Balm—a method of distraction,” he told me after trying it. “It's too small to provide any type of long term comfort or prevent heatstroke or hypothermia. It's a novel sensation for sure, like pressing an ice cube to your wrist.”

Jon’s right. It’s unusual to feel the temperature change so quickly on your wrist, and that sensation can redirect your attention away from any miserable environmental factors. The first time we reviewed the Embr Wave we thought the placebo effect was the device's main attribute, and my testing backs that up. There were times where I couldn’t tell if I felt any warmer overall, or just sidetracked from the frigid office air by the strange device on my wrist. During one memorable moment, I pushed the Embr Wave to its highest temperature—and still watched goosebumps rise on my forearm.

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What’s it like to wear the Embr Wave?

Forget the temperature part for a moment: The Embr Wave is cumbersome and annoying to wear. Though the Wave 2 is 63 grams with its band, the Embr Wave weighs 76 grams, about the weight of an Apple Watch, which is lighter than some other fancy watches out there. But because it sits on the inside of your wrist, it obstructs more movements than a watch would. It was difficult to type on my laptop because the Embr Wave kept knocking the edge of my computer. If it’s supposed to be aimed at office workers, then the design should accommodate things like keyboards.

The Embr Wave is worn on the inside of the wrist.
Credit: Reviewed / Jackson Ruckar

The Embr Wave is worn on the inside of the wrist.

Is the Embr Wave worth it?

If you’re in good health, have access to the thermostat, and plan on using your hands to do things like type or wear long sleeves, this device isn’t worth your money. And even if you don’t fall into those categories, you might be better off looking elsewhere.

If your goal is to have a neat toy to show off, and you have $299 to spare, then you might find the Embr Wave worthwhile. This device was a source of curiosity in our office during testing, and a number of my coworkers got to try it out. As Jon Chan told me, “the highlight, in my mind, is running around introducing people to this strange sensation,” and there’s definitely fun in that. But turning that momentary, yet notable feeling into sustained personal comfort is still a ways off.

The Embr Wave is available for $299. We are testing the newly released Embr 2, currently on sale for $299, and will update with our findings.

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