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Best Wireless TENS units & EMS machines - Buying Guide: 2024

Currently, it is possible to find a wide variety of electrostimulators that meet different requirements for almost any type of need, from devices that offer a wide variety of operating modes, to compact machines that prioritize portability. In this sense, one of the best features of several models of electro stimulators is that they operate wirelessly, connected to a WiFi network, and controlled by a mobile application.

Wireless electrostimulators are among the most versatile and comfortable physiotherapy devices, thanks to the freedom of movement provided by the lack of cables, which in turn offers a high degree of portability. In the following paragraphs, we will discuss in detail what criteria you should take into account when selecting a wireless electrostimulator that is correctly adapted to your needs.

Best wireless electrostimulators and TENS units

PowerDot 2.0 - Wireless TENS & EMS smart device controlled by the app
  • Type: Combo
  • Channels: -
  • Modes/Programs: 15 Programs
  • Intensity: Not specified
  • Wireless: Yes
  • Heat Therapy: No
  • Battery: Rechargeable Lithium
  • Electrodes: 2 Pads
  • Display: No display
  • Size: Not specified
  • TENS+EMS Combo
  • Control from the mobile app
  • Rechargeable battery
  • Includes user manual
  • Reduces pain symptoms
  • Does not specify battery life
  • Does not specify intensity levels
  • Does not specify measurements and weight
The PowerDot 2.0 portable electro-stimulator is a powerful and compact nerve stimulation device that uses the latest in TENS electrotherapy technology to promote the relief of any type of ailment, whether muscular or nervous, efficiently and quickly by means of low-intensity electrical discharges that interact with the nervous system, reducing the sensation of pain.

Unlike most wireless devices, the PowerDot is not controlled by a remote control, but by a versatile mobile application that allows you to navigate and run its 400+ customised programmes quickly and easily, and its compact, discreet and stylish design allows you to carry it with you at all times and wear it under your clothes whenever you want.

AccuRelief - Wireless TENS & EMS combo unit with remote control and mobile app control
  • Type: Combo
  • Channels: -
  • Modes/Programs: 14 Programs
  • Intensity: 60 Levels
  • Wireless: Yes
  • Heat Therapy: No
  • Battery: Rechargeable Lithium
  • Electrodes: 4 Pads
  • Display: Digital
  • Size: 0.96" x 2.09" x 4.53" - 0,013 lbs
  • TENS+EMS Combo
  • Rechargeable battery
  • Accelerates recovery from sports injuries
  • Control from mobile app
  • Portable and small size
  • Does not specify battery life
  • Does not include user manual
  • Does not include carrying bag
The physiotherapy accessories brand AccuRelief presents one of the most versatile and complete electro-stimulation device models on the market. This is its massager that includes TENS and EMS therapy functions, together with a very interesting pulse massage function, which makes it the best option for treating pain and complementing physical training.

Its 60 adjustable intensity levels can be easily modified via the mobile app, and coupled with the device's cordless and compact size, means you can have constant access to full massage therapy whether you're at home, in the office or on holiday, as you can take the AccuRelief with you wherever you go.

Compex Wireless USA 2.0 - Wireless muscle stimulator and TENS with 16 electrodes & 10 programs
  • Type: Combo
  • Channels: 4
  • Modes/Programs: 10 Programs
  • Intensity: 5 levels
  • Wireless: Yes
  • Heat Therapy: No
  • Battery: Rechargeable
  • Electrodes: 16 electrodes
  • Display: Digital
  • Size: 4.25" x 2.75" x 0.75", 1 Lb
  • Wireless electrodes
  • Prevents muscle atrophy
  • Improves joint mobility
  • Reduces pain symptoms
  • TENS+EMS Combo
  • Touch screen not included
  • No battery life specified
  • No heat therapy
The Compex Wireless USA 2.0 electrostimulation unit gives you one of the best alternatives to improve the results of physical training, while providing relief from the aches and pains caused by it, through its 10 electrostimulation programs divided into strength training, warm-up, recovery and TENS massage modes.

It is the perfect tool to maximize the results of your workout thanks to its electrical impulses that stimulate the growth of muscle fibers, while reducing and even preventing pain caused by exercise and promoting a quick recovery.

iReliev - Portable wireless therapeutic system TENS + EMS w/ 2 electrodes for pain relief
  • Type: Combo
  • Channels: -
  • Modes/Programs: 14 Programs
  • Intensity: 25 Levels
  • Wireless: Yes
  • Heat Therapy: No
  • Battery: Rechargeable Lithium (up to 5 hours)
  • Electrodes: 2 Pads
  • Display: Digital
  • Size: Not specified
  • Rechargeable battery
  • Improves blood circulation
  • Includes carrying bag
  • Improves joint mobility
  • Portable and small size
  • Does not specify measurements and weight
  • No heat therapy
  • Non-universal electrode replacements
The iReliev electrostimulator offers users the perfect combination of an electrical pulse massage for the relief of pain caused by injury and illness, and a muscle trainer that uses a slightly more powerful current to generate activity in the muscles. Its wireless operating system is managed by a remote control included in the box.

It has 14 operating programmes dedicated to particular functions. 7 are designed for pain relief, 1 is designed to treat arthritis, and the remaining 6 are different muscle conditioning modalities. In addition to the controller, the box includes 2 wireless pods, 2 reusable 3x5 inch adhesive electrodes, a rechargeable lithium battery, a USB charging cable, a carrying case and an instruction manual.

AccuRelief - Wireless TENS Transcutaneous Nerve Stimulation System for Pain Relief
  • Type: TENS
  • Channels: -
  • Modes/Programs: 3 Programs
  • Intensity: 20 Levels
  • Wireless: Yes
  • Heat therapy: No
  • Battery: 6 AAA Batteries
  • Electrodes: 2 Pads
  • Display: No display
  • Size: 2.36" x 2.08" x 0.7" - 0.09 lbs
  • Portable and small size
  • Reduces pain symptoms
  • Improves blood circulation
  • Wireless electrodes
  • Improves joint mobility
  • Few types of programs
  • Not suitable for muscle hypertrophy
  • No display included
Among the various products offered by the AccuRelief brand, its remote-controlled TENS electrostimulation unit has a lot of very interesting functions and features. It is based on TENS stimulation technology to influence the production of endorphins, which act as natural painkillers in the body.

The package includes 1 wireless remote control operating on AAA batteries 2 electrode control units, 2 reusable gel pads and an instruction manual. The ergonomic and compact design of the pads allows them to be used anywhere on the body, and they are discreet enough to be worn under clothing. It has 3 modes of use and 20 levels of intensity designed for safe and fast pain relief.

iReliev - Wireless TENS + EMS Combo for pain relief, arthritis & muscle strength with 8 pads
  • Type: Combo
  • Channels: -
  • Modes/Programs: 14 Programs
  • Intensity: Not specified
  • Wireless: Yes
  • Heat Therapy: No
  • Battery: Rechargeable Lithium (up to 5 hours)
  • Electrodes: 8 Pads
  • Display: Digital
  • Size: Not specified
  • TENS+EMS combo
  • Rechargeable battery
  • Accelerates recovery from sports injuries
  • Includes user manual
  • Includes carrying bag
  • Does not specify intensity levels
  • Does not specify measurements and weight
  • No heat therapy
The best feature of the iReliev wireless electro stimulator is that it has one of the most complete sets of equipment on the market. The wireless unit included in the package works with both TENS and EMS technology, and also includes 4 receiver pods, 8 electrodes, a dual interchangeable cable adapter, 1 carrying case, a starter guide and an instruction manual, making it one of the best-equipped packages available.

Its rechargeable battery gives you 8 to 10 hours continuous run time per full charge, and each of the pods provides 3 to 5 hours of continuous operation. With 8 TENS and 6 EMS preset programmes, along with 25 intensity levels, its 4-channel system allows you to perform isolated treatment on various muscle groups. Undoubtedly the most complete option you can find for the treatment of ailments.

Compex Mini wireless - TENS/EMS muscle stimulator with 2 Pods for Apple & Android Apps
  • Type: Combo
  • Channels: Normally 2 (Dual)
  • Modes/Programs: 6 Programs
  • Intensity: Not specified
  • Wireless: Yes
  • Heat Therapy: No
  • Battery: Rechargeable (7 hours of use)
  • Electrodes: 2 Pods and 6 electrodes
  • Display: Smartphone
  • Size: Not specified
  • Reduces pain symptoms
  • Portable and small size
  • TENS+EMS Combo
  • Wireless electrodes
  • Rechargeable battery
  • Size and weight not specified
  • No intensity levels specified
  • No heat therapy
One of the most versatile products of the Compex brand is its Compex Mini electro stimulator, which is focused on providing the greatest possible comfort to the user, thanks to its compact size and its convenient application, which allows you to control it very easily from your mobile device. It consists of 2 pods that use TENS technology controllable from the app, which is compatible for Android and Apple.

It has a rechargeable battery that can provide an autonomy of up to 7 hours per charge, 6 unique training programs focused on different branches of fitness to help you achieve your goals, and compatibility with your mobile for easy use. It is recommended for those physically active people looking for a compact, portable and natural way to deal with workout-related ailments.

OSITO - Rechargeable TENS & EMS unit for neck, shoulder and hip pain relief
  • Type: Combo
  • Channels: -
  • Modes/Programs: 11 Modes
  • Intensity: 25 Levels
  • Wireless: Yes
  • Heat Therapy: No
  • Battery: Rechargeable Lithium
  • Electrodes: 1 Pad
  • Display: No display
  • Size: Not specified
  • Rechargeable battery
  • TENS+EMS Combo
  • Accelerates recovery from sports injuries
  • Improves blood circulation
  • Improves joint mobility
  • Battery life not specified
  • Display not included
  • Non-universal electrode replacements
The OSITO brand has one of the most versatile and practical models of wireless electro-stimulator on the market, with TENS and EMS electrotherapy functions, which will allow you to provide relief for any type of ailment, while creating electrical pulses that activate the muscle fibres, greatly improving your physical condition.

Its compact size and long-lasting rechargeable lithium battery make it the epitome of portability, as you can take it anywhere. It has 11 modes of use and 25 intensity levels that allow for a profound relief effect. Each of the 11 modes provides a different type of massage and because the electrical impulses stimulate the human body's pain tolerance capacity, it does not require the use of medication.

iReliev - Compact & rechargeable wireless mini TENS for specified for pain relief
  • Type: TENS
  • Channels: -
  • Modes/Programs: Unspecified
  • Intensity: Not specified
  • Wireless: Yes
  • Heat Therapy: No
  • Battery: Rechargeable Lithium
  • Electrodes: 2 Pads
  • Display: No Display
  • Size: 1.42" x 3.27" x 6.22" - 0.10 lbs
  • Reduces pain symptoms
  • Includes user manual
  • Portable and small size
  • Wireless electrodes
  • Rechargeable battery
  • No battery life specified
  • No intensity levels specified
  • No display included
The correct word to describe the effect of this compact electrostimulator from iReliev is "precision". It is a wireless device designed for the treatment of localised pain points. Due to its size and the fact that it does not require any wires to operate, it is completely discreet and can be used anywhere, while travelling and under clothing.

Its efficient use of TENS technology allows it to block pain signals before they reach the brain, making it a safe method of treating ailments. It also has a long-lasting lithium battery and an energy-efficient function, which switches the device off every 20 minutes. One of the best devices on the market in terms of portability, discretion and functionality.

PowerDot 2.0 - Wireless TENS & EMS Combo smart device controlled by app (red model)
  • Type: Combo
  • Channels: -
  • Modes/Programs: 15 Programs
  • Intensity: Not specified
  • Wireless: Yes
  • Heat Therapy: No
  • Battery: Rechargeable Lithium
  • Electrodes: 4 Pads
  • Display: No display
  • Size: Not specified
  • TENS+EMS Combo
  • Control from mobile app
  • Rechargeable battery
  • Includes user manual
  • Reduces pain symptoms
  • Does not specify battery life
  • Does not specify intensity levels
  • Does not specify measurements and weight
PowerDot 2.0 wireless muscle stimulation electrodes are among the newest and most cutting-edge devices related to the field of physiotherapy, specifically designed to be portable, comfortable and provide an immediate sense of relief to its users. The package includes 2 pre-loaded pods, 2 sets of lead wires, 2 sets of electrode pads, 1 carrying case, 1 USB charging cable and 1 user guide.

To provide one of the fastest and most comprehensive improvements for pain of all types, the PowerDot 2.0 has over 400 different usage modes with different settings, aimed at muscle recovery, performance enhancement and pain relief, which can be adapted according to recent activity, fatigue level and the area to be treated. All these options can be managed through its mobile application, which is available for both Android and iPhone mobiles.

Video: How to use electrotherapy to improve my health?

Types of TENS machines and muscle electrostimulators you should know about

Buying guide: What should I take into account to buy the best Wi-Fi electro stimulator?

In addition to the advantages in terms of portability offered by wireless electrostimulators, it is necessary to take into consideration factors such as the technical specifications and functions of the device, and the ways in which the user intends to use it.

Types of uses

  • Type of use: wireless electrostimulators can be used for all the regular applications of such a device, ranging from injury rehabilitation and pain relief to muscle conditioning
  • User experience: the variety of programs, levels and functions that an electrostimulator can have affects its ease of operation, so it is necessary to choose a device with functionality according to the user's experience
  • Time of use: quality is a determining factor in the useful life of an electrostimulator, so it is necessary to have an estimate of the minimum time during which the device will be required, in order to acquire a machine of the necessary quality.

Technical specifications

  • Channels: the conduction channels are the positions where the cables to which the electrodes are attached are connected. Wireless electrostimulators can have up to two channels, which allows them to connect up to four cables.
  • Pads/Electrodes: the number of electrodes an electro stimulator has determines the range of action of the electrical impulses of the electro stimulator. The more electrodes it has, the larger the surface area it can act on. This quantity is directly related to the number of channels the device has.
  • Modes/Programs: these are the different types of treatment that an electrostimulator can apply to the user. Each program is designed to treat a particular ailment, or to achieve a specific training objective. The more modes a device has, the greater its versatility.
  • Intensity levels: Intensity levels are related to the stimulator's programs, since each program can have a variable number of intensity levels, depending on the type, brand and model. The intensity levels determine the depth to which the electrical impulses can reach the affected area. The more intensity levels a mode has, the more effective it will be.
  • Type of screen: this is a factor that affects the ease of use of a device. Touch screens allow a wide display of modes and levels, while analog screens offer less visibility but a more direct approach. It should be emphasized that the type of display does not affect the effectiveness of the stimulator. It is a matter of user preference, although it usually influences the price of the device.
  • Wireless: this is a feature that increases its convenience and portability when combined with specifications such as the size and type of battery the device has, as well as the convenience of being able to program modes and levels from a versatile mobile application
  • Heat therapy: this feature is not present in all devices, and those that do include it tend to be more expensive. However, it is a feature you should consider if you are looking for a device that allows you to counteract joint and rheumatic ailments.
  • Size: this is a feature that influences portability, since bulkier devices usually have more functions, but require constant connection to the electrical current, while the more compact ones can be carried by the user on a daily basis
  • Portable: this is a feature to take into account if the user requires the application of electrotherapy at times of the day when he/she is in the middle of his/her daily work. If so, it is necessary for the device to be compact enough for the user to carry it on his person at all times.
  • Types of electrodes pads: depending on the make and model of the device, you can find stimulators that have customized electrodes that are compatible only with their own device. These types of stimulators are usually of high quality, although replacement pads can be very expensive. It is possible to find lower quality stimulators that are compatible with universal electrodes, which are much less expensive.
  • Battery type: the life of the device is generally related to the type of battery that powers it and the quality of the battery. The best devices tend to have lithium batteries that allow them to have a considerably long service life, while AA battery devices are at risk of short-term damage. In the long run, lithium battery devices cost much less.
  • Pre-programmed timer: this is not an indispensable tool for the effectiveness of the treatment, although it is very useful if you want to keep track of the duration of each session.
  • Combo: machines with TENS therapy and EMS therapy functions are among the most versatile you can find, since they will allow you to treat various types of ailments, as well as apply muscle stimulation to improve physical condition. This feature is usually present in high quality and fairly priced devices.
  • Interferential: Interference therapy is not often present in conjunction with other functions in most devices, so they are usually quite expensive. It is very feasible, however, to find devices specialized in interferential therapy.
  • Warranty: The warranty for electrostimulators usually varies depending on the brand, model and place of sale. Generally, the minimum warranty by law in Europe is two years.
  • Price: this is a variable that depends on the buyer's purchasing power, so although it is important, it is not a determining factor in deciding which device to purchase. However, the best you can do is to find a balance between economy and quality within your capabilities.

Differences between TENS and EMS: Which one is better for me?

TENS and EMS electrostimulation therapies offer a number of physiotherapeutic advantages, which is why electrotherapy is fast becoming one of the most widely used methods of physical therapy. However, it is necessary to be aware of the different effects that each of these modalities offers.

TENS units

  • Relief of acute ailments: TENS therapy has a quite marked analgesic effect on pain caused by recent illness or trauma
  • Treatment of chronic pain: the lower frequencies of TENS therapy applied over longer periods of time have very pronounced effects on chronic ailments.
  • Relaxation of muscle tissue: applying TENS stimulation is an excellent method for relaxing muscles, as well as tendons and ligaments, thanks to the low intensity of its electrical impulses.
  • Hormonal imbalances: certain hormonal conditions can generate a considerable level of pain, for which the electrical impulses of TENS therapy is an excellent method to alleviate this ailment.
  • Rheumatic diseases: Rheumatic diseases negatively stimulate the nerve endings in the affected joints. This ailment can be controlled very effectively with the application of TENS therapy

EMS electrostimulators

  • Muscle toning: it is possible to improve the condition of muscle tissue by means of EMS electrostimulation therapy.
  • Maintaining and resuming physical activity: it can be used to recover part of the physical condition after long periods of sedentary lifestyle or recovery from surgical procedures
  • Rehabilitation of the musculature after injuries: it is a method widely applied in the fields of physiotherapy to regain muscular condition after the injury recovery process.
  • Increased recovery of muscle tissue: the electrical impulses of EMS therapy promote the activation of muscle tissue, which promotes the regeneration of the fibers.

Contraindications in the use of WiFi TENS and EMS machines

Contraindications for electrode placement

The placement of the electrodes is of utmost importance in electrotherapy, whether TENS or EMS, so here are some things to keep in mind before starting a session:

  • Symmetrical placement: the negative and positive poles of each electrode should be connected symmetrically. That is to say, if we use two pads, we should use one positive and one negative pole on each one, while if we use four, the equivalence should be two positive and two negative.
  • Do not cross the electrodes: you cannot use one electrode in the lower train and another in the upper train and more importantly, never cross the electrodes from the left side to the right side of the body and vice versa, since the current path can negatively affect the patient's health. For this reason it is always recommended to use the electrodes in a localized way.
  • Motor point: at least one of the electrodes, whether positive or negative, must be positioned over the motor point, which is the point where the greatest force is achieved in the muscle in question.
  • Control the intensity: the size of the muscle must be taken into account when choosing the intensity of the current, since the less volume and size the muscle has, the lower the tolerated intensity will be.
  • Be careful with the skin: EMS or TENS should not be used on recently depilated areas since the pores will be open and this could generate skin sensitivity. Do not use on irritated or reddened areas, open wounds or recent scars.

Contraindications for the use of electrostimulation

Being a therapy that applies currents to the body, it cannot be used for all conditions, therefore its use should be avoided in cases where the user suffers from the following conditions:

  • Epilepsy.
  • Cardiac pacemakers.
  • Circulation disorders and problems.
  • Abdominal or inguinal hernias.
  • Neurological disturbances.
  • Tendency to bleed.
  • Skin irritation, burns or wounds.
  • Diseases that affect muscle metabolism, such as diabetes.
  • Metabolic syndrome (diabetes, hypertension and obesity).
  • High uric acid levels.
  • Metabolic disorders and metabolic pathologies.
  • Inflammatory pathologies.

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