Best Tens Units

In this guide, we’ll review the Best TENS unit.  We’ll go into the nitty gritty so you can get pain relief faster without going through the stress of researching all the tens units on the market.

I spent at least 10 hours testing and researching for the best TENS unit.  Below are some of the best TENS units on the market today:

TENS unit low-budget pick

tech care 24 mode tens units
The TechCare 24 mode Massager is our budget pick and it’s got a price that’s hard to beat.  It’s got an old iPhone-esque face to it, featuring a 3.75-inch back-lit LED screen and – as one would have guessed – 24 stimulation modes.  These modes include acupuncture, deep tissue, foot, tapping, cupping, and combo for a total of 6.

WAIT?  We thought you said 24 modes.

Yes, well there are 4 different settings – which use a combination of intensity and timing to create a pattern – in each mode.  These are indicated on the device as 1,2,3,4.  A little false advertising on their part but technically true nonetheless.

Dual Channel and Standard Control

The device is dual channel meaning you can treat two body parts independently.  You can do this by clicking on the round button in the center which will allow you to toggle between channel A and channel B.  The 4 other buttons will allow you to change the massage mode listed above, the timer, and the intensity level.  The biggest gripe about its interface is the lack of the ability to pause the device.  You have to turn it off and turn it back on as a workaround.

The package comes with 3 sets of large electrode pads for a total of 6.  These are nice in that they don’t require gel, adhere to your skin very well, and don’t leave a nasty residue.  The cord that attaches to the pads is pretty long at around 4-5 feet.


It’s kind of a bummer that it doesn’t have a clip or a case to be able to carry it around easier.  However, it’s got a 20-hour rechargeable battery and it comes with a small white case container to store the pads and to wrap the cords around.

In a perfect world… this device would have a descriptive manual that outlines what each mode and its setting does.  It’s left up to interpretation by the consumer.  Also, its greatest weakness is its greatest strength:  the 24 modes might be overkill since it’s not easy to feel the difference between all of them.  And it would be pretty convenient to have a clip on the back of the device to avoid holding it whenever it’s in use.

Our Creative TENS Unit Pick

irelieve pain relief tens unit

iRelieve PlayMaker is both EMS and TENS

Our creative TENS unit pick, iRelieve PlayMaker(wired) is also an EMS(Electrical muscle stimulation).  This means the device targets both sensory and motor nerves since they fire at different frequencies.  Whether it’s for general pain relief or muscle rehabilitation, the PlayMaker is worth taking a look at.

The iRelieve PlayMaker comes with the unit, a tote bag, a belt clip, 8 small electrode pads (2” by 2”) and 4 large electrode pads (3.5” by 3.5”), 2 Lead Wires, 3 AAA batteries.

25 levels of intensity and 14 different therapy modes

This unit offers 25 levels of intensities – these can be set independently between 2 channels – and 14 different therapy modes with 6 of them for EMS as well as a toggle between EMS and TENS frequencies.  The different therapy modes are labeled P-1 through P-14, ‘P’ standing for the program.  All of this is manageable through 5 buttons on the device.

Subscription Electrode Pads

The electrode pads are proprietary which is worrisome because once they lose their stickiness(lasts about 20-30 uses), you’ll have to purchase them directly from iRelieve, leaving you with no other options.  Luckily, they have their Dollar Electrode Club(sounds like they are riding off of Dollar Shave Club) which is a subscription model service for the electrode pads.  The pads come in two sizes, small and large.  The larger pads are for targeted bigger body parts such as the back.  Since the unit can operate with one channel, this unit can either operate with 2 or 4 small pads or 1 or 2 large pads.

Cool feature 1: It’s strong.  How strong?  80 mA(milliAmps) output power.

We scrutinized the power – since the unit is so small – and determined that the electric output is equivalent to those found in professional physical therapy offices.

Cool feature 2: auto-lock.  Especially since this device can force your muscle’s contraction, it’s nice that it has a way to lock it so no button will be accidentally pressed.  This can be done by pressing ON(+) and OFF(-) simultaneously.

Not without flaws

While iRelieve PlayMaker is our best pick, it could improve.  Some design/user-interface flaws to note:

  • Navigation through different settings is difficult like texting using a push phone
  • When navigating through modes, i.e. from P-1 to P-2, the intensity level resets not allowing one to easily compare modes
  • Non-back-lit screen

None of them are deal breakers but it would be nice if they were more up to the times with an intuitive user interface we are accustomed to.

HealthmateForever Pro15AB Tens Unit

healthmate best tens units
HealthmateForever is a known brand for producing a prolific line of TENS unit products.  Rest assured, these guys have experience with producing quality TENS devices.  Different design from the YK15AB model, the Pro15AB model looks more like an old mp3 player with an LCD back-lit screen.  It features a total of 15 preprogrammed operational modes and two completely isolated channels without reducing the power in the half.

What’s inside the box?

Inside the box, you’ll find the device, 2 sets of adhesive electrode pads that measure 2.5 inches across for a total of 4, 2 sets of leads wire, a USB cable and AC adapter wall charger, an instruction manual, and a pads holder to hold all the electrode pads.

This device offers 15 different massage modes and 20 levels of intensity both of which can be set independently on the ‘A’ and ‘B’ channels.  The dial-like style set of buttons allows you to switch between the ‘A’ and ‘B’ channels, select the mode, increase the button using the ‘+’ and ‘-‘, and select the timer with the ‘T’ button.

As for our electrode pad analysis (it’s hard to use if it doesn’t stick very well to the body!) it is pretty adhesive like the others and doesn’t require gel.  The lead wires snap onto the pads very easily and there is a film that protects the adhesive before actual use.

Cool feature 1: It’s FDA-cleared.

They have class II approval which means they declared the devices safe and effective.  As a consumer, it’s nice to know the manufacturer goes out of their way to meet federal standards.

Cool feature 2: it’s compatible with the wireless product WI9 (Not included). 

If you ever find yourself frustrated with the lead wires getting mingled and mangled this device offers a wireless alternative.

Could there be improvements?  Absolutely.  After digging into the brand, we found out they offer wholesale distribution which means they are primarily a manufacturer.  For the consumer, this means subpar customer service and quality products as their main goal is too massive to produce products.

Our personal best TENS Unit

Our personal favorite TENS unit pick goes to TENS 7000 2nd edition.  A 10-year pioneer in TENS devices, the TENS 7000 has sold over 1,000,000 units worldwide.  This device is unique among the bunch in its design and functionality.

First Impressions – Feels Like Old-School Medical-grade Unit

So let’s start with first impressions.  The unit itself is pretty small but it’s contained in this black plastic medical-type case with red latches.  The box-opening experience is definitely above par.  It’s kind of like gift wrapping where the gift itself is uncovered last and the instruction manual & electrode pads are presented first.  The design is unlike others we tested.  It’s got a palm size fit and looks more like a walkman or a radio rather than a smartphone which seems to be the popular design in the market.

In terms of power, this device packs quite a punch.  It uses a 9-volt battery and a dial to set the intensity from 0-8.  I and others included, did not feel the need to go past 4/8 on the intensity scale.  With the included battery, the device will last for about 48 hours.  It is recommended to purchase rechargeable batteries.

Also included are 4 economy electrode pads.  The pads can be replaced by other brands so you’re not confined to one particular brand.  They recommend silver pads from brands like StimChoice and inTENSity At Home.  Silver pads are much more conducive to electricity which will distribute the charge equally among the 1.7-inch to 2-inch pads.

Cool feature 1:  You can control the frequency.

From 2hz to 150hz, you can control the frequency of the charge using the up and down arrow buttons inside the control compartment.

Cool feature 2:  Plastic covers prevent accidentally changing settings.

There is a plastic cover by the dial that controls the intensity and there is a plastic cover for the four buttons in the middle area.

Device Improvements

The worst thing about this device is its durability/customer service.  We tested the unit for several months and stopped working after 4.  It seems like other customers are having similar problems.

Another thing is the small zap that happens when bumping up a setting.  It’s a small functionality flaw but a flaw nonetheless.

What are TENS?

A TENS unit stands for transcutaneous electrical nerve stimulation.  Quite the mouthful, I know.  To put it simply: it has sticky pads that deliver electrical current to painful muscles and tissue to ease the pain.

So how exactly do electrical impulses help relieve pain in the body?

There are two explanations.  One is that the electrical current’s frequency interferes with the transmission of ‘pain messages’ to the brain from the spinal cord.  If there are fewer ‘pain messages’ going to your brain, you’ll feel less pain.

The other is that electricity increases endorphins.  Endorphins are hormones that interact with the receptors in your brain to reduce your perception of pain.  Much like morphine, endorphins help block pain messages from reaching the brain without the actual side effects of opiates.

Feel free to check out my article on How does a TENS Unit work? where I go into greater detail.

Best TENS Unit Buying Guide

Having trouble difficulty selecting the best TENS unit suitable for you?  Look no further, I’ll address all the varieties and nuances that come with a TENS unit so you can be equipped with better knowledge.

The first thing is first.

Make sure that the product is cleared by the FDA in at least the over-the-counter class 2 clearance  

This means the manufacturer convinced the FDA their products are similar to other medical products on the market and thus are deemed appropriate for the general public.  Keep in mind that this type of FDA approval does not require a clinical trial.

If the product isn’t approved by the FDA, be careful as the company is operating under illegal pretenses.

Programs and modes

Preferences in programs and modes vary from user to user.  Some prefer more control and others want away with all of it.

If you want more control, get a TENS unit that allows just that.  You are going to need to educate yourself with terminologies like pulse width and wavelength.

If you don’t want control, get a TENS unit that has many pre-set options.  There are different categories such as therapeutic(kneading, Acupuncture, tapping, etc.) and some have custom-designed modes that target specific parts of the body like the shoulder, neck, and back.


Channels refer to how many independent sources of electricity exist on the device.  Generally speaking, the more the better since you’ll have more control this way.

The standard for the market is duo channels.  This means you can have two sets of electrode pads working in different modes/programs and intensities.

Most of the time you should choose to opt out of duo channels.  The only advantage of a single channel is the cheaper price.  However, our study found prices were very close among single and duo-channel units.

Intensity Level

Being able to choose how strong the unit will pulse electricity is important since everyone’s tolerance and preferences are different.  However, be careful with the implications.

Levels of intensity do not indicate weak or stronger.  A unit with 30 levels of intensity does not necessarily have a higher cap of strength than a unit with 15 levels.

What you want to look for is a standard measure of output called milliamps (mA).  80-100 mA is typical but if you’re not sure, make sure to get one with a broader range.


The timer is one of a TENS unit’s most important features.  Why?

If the unit turns off every minute, this would quite a hassle for the consumer.  If the unit doesn’t turn off after 10 hours, the batteries would get depleted fast as well as wearing out the electro pads.

We found that our user group preferred the 15-30 min window as the ideal timer.


We’re at a time where lithium-ion is the status quo in most electronics.  However, the TENS unit market is a little behind.  Products have different sources of power such as AA, AAA, and 9V batteries.

If you don’t want to spend a continuous amount of money throughout the lifetime of the device, get a device with rechargeable batteries.


If you’re a first-time TENS unit buyer, you should purchase a smaller, sleek unit.  The heavier ones tend to provide value to more experience TENS unit consumers as it comes with additional features that are more appreciated by the experienced user.

Also, think about where you’ll decide to use the TENS unit.  If you’re a consultant always on the go, you want to consider a portable unit as opposed to something hunky and hard to carry.

User Interface

The user interface refers to the screen and controls of the device.  Many of our older users complain about how hard it is to see or press the buttons.  Old or young you want two things:

  1.  A screen that’s easy to read
  2. Buttons that are easy to press

The buttons are hard to test since you don’t have the product before purchasing it.  However, for the screen make sure to look at product photos where they showcase the screen.

The back-lit screen is becoming a standard for the TENS unit in the market as some customers want to use them at night or in the dark.  If that’s the case with you, make sure the product offers that feature.

Lead wires

The lead wires are somewhat an obvious but often missed consideration.

Purchase long lead wires as shorter ones are more likely to pull the electrode pads off your body due to their limited reach.

Electrode Pads

The electro pads are an important feature of the tens unit.  The most important aspect of an electrode pad is its adhesiveness.  What we mean by that is:  how long will it take for the stickiness to run out?

Since there’s no standard measurement on stickiness (not that we know of at least) we recommend looking at the manufacturer description on the estimated lifetime of the pads and consumer reviews.  Also be cognizant of how easily replaced the electro pads are, since some units only allow their proprietary electrode pads while others allow for universal replacement.

To increase the electrode pad’s adhesiveness, make sure to clean it regularly as the residue is what makes it not sticky.

The size of the electrode pads is important.  If you want to target a larger muscle group like your back or your thighs, make sure the unit comes with large pads.  If you want to target smaller areas like the forearm, make sure to have small pads.  The standard on the market is to come with both.


You want to purchase a unit with a warranty.  Look for a minimum of a 1-year warranty.  The longer the warranty lasts, the more confident the company is with its quality.  If you see a warranty for 7 days, run the other way.

Scroll to Top