LectroFan EVO vs. Classic: White Noise Juggernauts Compared

In the world of white noise machines, Adaptive Sound Technologies is one of the best players on the market. Their two offerings — the LectroFan Classic and LectroFan EVO — are everyone’s go-to solution when they need a simple but reliable white noise gadget for their home or office.

If you’re looking to buy one of these models but you’re not sure how they differ, read on. Below, I’ll compare them based on several essential parameters and give you all the info you need to make a smart purchase.

LectroFan EVO and Classic side by side.

A Crash Course on White Noise

If you’ve followed some of my other blogs on white noise, you can probably recite the definition in your sleep. However, in case you’re new, I’ll quickly go over the basics so you can find your way through the comparison easily.

White noise is a combination of numerous frequencies ranging from 20 to 20,000 Hz. In other words, this type of noise contains all the frequencies the human ear can pick up on.

According to research, white noise can help eliminate auditory distractions around you, allowing you to focus or sleep without disturbances. Besides blocking out other sounds, white noise machines are also useful for creating a relaxing environment for babies, kids, and even pets. Anecdotal evidence seems to confirm these theories, with many people swearing by white noise machines.

When this information became widely available, companies started experimenting with white noise. The goal was to create a machine that will emit this noise and help people drown out other sounds in their vicinity.

In a sea of manufacturers, Adaptive Sound Technologies quickly distinguished itself as a safe and quality choice. Nowadays, this company is one of the leading white noise machine manufacturers with models that offer both premium quality and a great price.

Without further ado, let’s dive into the brand’s two most popular offerings and see how they compare.

Comparing the LectroFan Classic and Evo

Just like in my review and comparison of the LectroFan Classic and Dohm, I’ll be looking at several different parameters and points of comparison.

Firstly, I’ll take a look at the machines’ sound profiles. Do they make the white noise themselves or do they rely on recordings? Do they offer you fan noise only, or can you also enjoy some ambient sounds? I’ll answer these and several other related questions in one of the following sections.

Next, I’ll discuss volume. This parameter is especially important if you’re looking for a white noise machine for your nursery or office, as not all models are equally suitable in such situations.

Aside from these, I’ll also delve deep into the two models’ noise masking ability, operation, appearance, portability, price, and so on. By the time we’re done, there will be no stone left unturned, and you’ll know exactly which of the two machines suits your needs best.

Are you ready? Let’s get into the good stuff.

Sound profiles: EVO (left) vs. Classic (right)

Sound Profiles

The LectroFan Classic has 20 sound types for you to choose from. Out of the 20, 10 are different fan sounds, and 10 are ambient noise variations. As such, this machine is electric.

Besides white noise, the machine offers you pink and brown noise as well, which is a big plus. Namely, these types of noises can be even more soothing than white variations, so you can choose the one that suits you based on your mood and time of day.

While it is also an electric machine with 20 sound variations, the EVO offers you two additional options. Besides 10 fan noises and 10 ambient sounds, you can also listen to 2 additional sounds: ocean and surf.

Therefore, this model has a total of 22 sound options. It’s important to mention that EVO also has brown and pink noise variations, making the two machines even more similar.

In the end, it all comes down to your personal preferences. If you enjoy ocean sounds and find that they soothe you well, EVO is the way to go. But if you aren’t a fan of these sounds and you simply need rich and varied white noise variations, the Classic is just as viable a choice.


When it comes to volume, the Classic has a slight advantage over the EVO. It can produce up to 91 decibels when measured from one foot away, which is more than sufficient to mask most everyday sounds. At its lowest volume setting, the Classic produces 48 decibels of noise.

In comparison, the EVO has a maximum volume of 87 decibels and a minimum of 44 decibels. This makes it a great option for parents of babies who need a quieter environment.

Overall, while the Classic is louder at its highest volume setting, the EVO may be a better choice for those who require lower volume levels. It’s important to note that finding the optimal volume level for a white noise machine can vary based on personal preference and the specific noise environment. It’s recommended to experiment with different settings to determine what suits you best.

Frequency Range

I’ve already mentioned that both machines are great at masking other sounds due to their volumes. However, the frequency range is another factor that contributes to this ability.

In this regard, the Classic, once again, has a slight advantage. It offers sounds of more varied frequencies, ranging from extremely low to incredibly high. As such, its masking ability is excellent and it truly ensures you don’t hear any other noises in your environment.

On the other hand, the EVO has trouble masking higher-pitched sounds. For example, if a car passes by your window and the tires screech, you’ll most likely hear the noise even with the EVO on.

It seems that the company wanted to reduce potential hissing noises that can come with higher-pitched frequencies when making the EVO. They definitely succeeded — there is no hissing at all. However, there are no high-pitch frequencies either, which is a slight disadvantage.


The LectroFan Classic features 3 elliptical buttons: 1 horizontal and 2 vertical. Depending on which end of the buttons you press, they all perform 2 different functions.

The power button also doubles down as a timer control, and the second button allows you to adjust the volume. As for the third button, you can use it to change between sound profiles.

All in all, the machine is effortless to operate, and the buttons are both sturdy and easy to reach.

The situation is a bit different with the EVO. Namely, there are 6 buttons on the top of the machine, and each one performs a different function. The top two buttons let you turn the machine on and set a timer, respectively.

Directly below them, you’ll find one button that controls the ambient noises (the left one), and another that lets you switch between the 10 fan sounds. Thus, the two types of sounds are separated for convenience and easier access.

Finally, there are 2 volume buttons. The left one turns the volume down, and the one on the right turns it up.

Personally, I prefer the buttons on the EVO, simply because the fan and ambient buttons are fully separated, making them look better aesthetically. Additionally, the buttons are located on the top of the device, which helps prevent the machine from moving when you press them. However, the buttons perform the same functions on both machines, so it’s all about what you prefer.

Power and Charging

Both the Classic and EVO can use USB and AC charging alike. In other words, you can use an AC port at home, and hook the machine up to a portable charger whenever you’re going somewhere. In addition, you can easily connect the units to your laptop or any other device.

As for how much power the machines require, the answer is 3 Watts. So, they are exactly the same in this regard.

Add-on Features

Since this manufacturer excels in creating simple but powerful white noise machines, neither Classic nor EVO come with many add-on features. In fact, the two only allow you to set a timer.

In the case of both machines, this timer goes up to 60 minutes. Thus, the machine will turn off after this time if you only press it once. However, you can easily add more time by pressing the button further, as every press adds another 60 minutes.

So, if you press the timers 8 times, your machine will work for 8 hours and then turn off. That is also the upper time limit for both models.

Besides the timers, the machines have no other add-on features. In other words, you cannot connect them to an app and schedule your sessions that way, nor can you control the sound options remotely.

Size and Weight

The LectroFan Classic has dimensions of 4.4 by 4.4 by 2.2 inches. Moreover, it weighs 1.26 pounds. Conversely, the dimensions of the EVO are 4.7 by 4.7 by 3.3 inches, and it weighs 0.8 pounds.

So, the two models don’t differ too much in terms of size. The EVO is only an inch taller. Still, both machines can fit neatly onto desks and shelves, and neither one takes up a lot of space.

The only significant difference can be seen in the weight, as the EVO is quite lighter. As such, it is easier to carry it with you on trips, as it won’t make your luggage too heavy.


Speaking of carrying your white noise machine on trips — you can do so with both models.

As already mentioned, the two machines have USB ports, so you can hook them up to portable chargers. Therefore, you’ll be able to take them along even if the place you’re traveling to has no power. They only differ in their weights, but, all things considered, the difference is not that huge.


Now, I know some people don’t pay too much attention to how a gadget like this looks, but I still think it’s important to mention it. That way, you’ll know which option suits your taste and interior better.

The LectroFan Classic has a heptagonal body, and it comes in shiny black or plain white. As such, it is equally suitable for offices and homes. It might look a little out of place in a nursery, but you can still make it work by placing some colorful toys or decorations around it.

Similarly, the EVO also has a heptagonal base. Although it also comes in black and white, the black option is more matte than the one you get with the Classic. So, if that’s what you prefer, the EVO is a better choice.


While both machines are some of the most affordable options you can find on the market, they still differ among themselves.

At the moment, the LectroFan Classic costs around $30, while the EVO comes up to around $40. Thus, the EVO is slightly more expensive than its older sibling. You can check out their current prices here:

Target Audience

Finally, I’ll dedicate a few words to who the machines were made for.

In this regard, both models are perfect for office spaces and bedrooms. They offer you a wide range of frequencies and sounds to choose from, so you’ll be able to find a setting that works for you no matter what you’re doing.

Although you can use these machines to help your baby sleep better at night, I think there are more suitable models on the market. Those models allow you to have more control when it comes to frequency and volume, which is essential for protecting your child’s hearing. Plus, they come in more vivid colors and shapes, so your little one will like them better.

LectroFan Evo vs. Classic: The Final Verdict

And there you have it. When you parse through these parameters, it’s not difficult to see that these two machines don’t differ all that much. They have similar appearances and power and charging options, and they’re both portable.

The Classic is slightly louder and has a wider range of frequencies, while the EVO offers you additional ocean sounds that you can enjoy as you sleep. And in terms of operation and add-on features, the two are identical.

In the end, it all comes down to your preferences. Take a look at the specifications above, and choose accordingly. No matter what you decide, one thing is for sure: you’ll be getting a premium-quality white noise machine that will last you for years.


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