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Circulation improver devices claim to boost blood flow, reduce swelling and ease everyday aches using a combination of EMS (electrical muscle stimulation) and TENS (transcutaneous electrical nerve stimulation) technology.
We've tested six of the main models available, including the Revitive Circulation Booster range and rival products from WeightWorld and Bodi-Tek, to uncover the best ones to try at home.
We also reached out to external experts and asked one of our in-house scientific advisers to delve into the science behind whether circulation improvers really work, and if there's anything you should be aware of before you buy.
We've uncovered which products are comfortable, practical and easy to use, and the ones that left our testers unimpressed.
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How our tests find you the best
Easy to use?
Our testers assess how easy each circulation booster is to set up - some are much trickier than others.
Comfy?
Your feet have to be on these for a minimum of 30 minutes every day, so we check if they are soft underfoot.
Portable?
We look at how easy it is to store the boosters and move them around, plus how long the lead is so you can easily use it from your favourite chair.
We also look into...
What impact using them has. We observed impact during use and reviewed the available clinical evidence
Only logged-in Which? members can view our full circulation improver product reviews below.
Join Which? to get instant access to our test results and recommendations.
Product | Price | Ease of use | Comfort and fit | Storage and portability |
---|---|---|---|---|
Sign up to reveal Get instant access to this and all our scores and recommendations Unlock tableDigital first year £39.50, then £79 thereafter, equivalent to £3.29 a month, cancel at any time. Already a member? Log in | ||||
Sign up to reveal
Get instant access to this and all our scores and recommendations
Unlock tableDigital first year £39.50, then £79 thereafter, equivalent to £3.29 a month, cancel at any time.
Already a member? Log in
Date tested: April 2025. Page last checked: July 2025. We are not able to show every retailer with our pricing engine and cheaper prices may be available.
Only logged-in Which? members can view the full results, including the products we thought were the easiest to use and our expert assessment of the evidence for devices that claim to boost circulation.
If you aren't logged in, you'll see the key specs and info for all the products we tested in alphabetical order below. Join Which? to get instant access to our full test results today.
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Weight: 2.1kg
Cord length: 1.6m
Intensity levels: 1-99
Extras: Comes with a remote control
Need to know: Use for maximum 60 minutes a day, barefoot. Not wireless. Manufacturer states not suitable for anyone fitted with a heart pacemaker.
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Weight: 2.1kg
Cord length: 1.5m
Intensity levels: 1-99
Extras: Comes with a remote control
Need to know: Use for maximum 60 minutes a day, barefoot. Wireless. Manufacturer states not suitable for anyone with epilepsy, deep vein thrombosis (DVT), or fitted with a pacemaker.
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Weight: 1.3kg
Cord length: 1.6m
Intensity levels: 1-99, 50 modes
Extras: Comes with a remote control, and it sits in the device (less chance of losing). Wireless and rechargeable
Need to know: Wireless. Has to be charged before use. Use for maximum 60 minutes a day. Manufacturer states not suitable for anyone with deep vein thrombosis (DVT), pregnant or fitted with a heart pacemaker.
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Cord length: 1.5m
Intensity levels: 1-50
Extras: Electrode body pads
Need to know: No remote control. Maximum use 60 minutes a day. Not wireless. Manufacturer states not suitable for anyone with DVT, pregnant or fitted with a heart pacemaker.
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Weight: 1.76kg
Cord length: 1.5m
Intensity levels: 1-99
Extras: Downloadable app to track and use the device, electrode body pads
Need to know: Can be used without the app, wireless, maximum use 60 minutes a day. Manufacturer states not suitable for anyone with deep vein thrombosis (DVT), pregnant or fitted with a heart pacemaker or AICD.
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Weight: 3.24kg
Cord length: 1.2m
Intensity levels: 1-99
Extras: Carry bag, electrode body pads, comes with remote control and carry bag
Need to know: Auto switch-off after 30 minutes. British company. Wireless and rechargeable. Maximum use 60 minutes a day. Manufacturer states not suitable for anyone with epilepsy, deep vein thrombosis (DVT), pregnant or fitted with a heart pacemaker.
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'Circulation improvers aim to mimic the natural process of muscle contractions using EMS (electrical muscle stimulation),' Which? scientific adviser Alicia Day tells us.
'The theory is that triggering calf muscle contractions triggers a process called the musculo-venous pump, which means more blood is flowing both to and from your heart, and your legs receive more fresh, oxygen-rich blood.'
You don’t need to move – just place your bare feet on the pads, and the device does the work while you sit. Most models let you choose the intensity level that feels right for you, either via a remote, app or onboard controls.
Most brands advise that you use the device regularly (eg daily) for around 30-60 minutes per session.
Many claim that you will see changes within six weeks of use, though anecdotally they also claim that people reported feeling differences after first use. This may well be a placebo effect though, and you should always take anecdotal evidence such as this with a pinch of salt.
Some also include TENS (transcutaneous electrical nerve stimulation) pads. These work slightly differently by stimulating nerves for pain relief.
Only logged-in Which? members can view our full verdict on the evidence for circulation improvers, from our in-house scientific adviser.
Join Which? to get instant access to this and our test results.
Circulation improvers aren't safe for everyone. People with certain medical conditions should not use these devices, including (but not limited to):
If you are unsure, or have any concerns, it's important to check with the manufacturer or a health professional first.
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We shortlisted the most popular and widely available brands from across UK retailers to bring you a comparative test of the main choices.
We then recruited a panel of volunteer testers, seeking out a range of people and ages who had achy legs or circulation complaints.
We buy all the products we test directly from the shops, just like you would, so you can trust our testing.
Each circulation improver was tested in the same room and conditions and assessed on the following:
We assess each product on how intuitive it is to use, how clear the instructions are, and how easy it is to assemble and get working.
The highest scores are those that are the easiest to set up. They are 'plug-in-and-go', whereas some are more complicated, fiddly and slow to charge.
Our testers try out each product and rate how comfortable it is to use, what the pads feel like underfoot and how intense the levels are.
We assess how heavy each booster is and how effective the handles were for carrying it – some are nice and big and easy to grip, while others are too shallow.
We also check how easy each is to push under a chair, both on a smooth wood-like surface and on carpet.
The only definitive way to assess if these products work to improve symptoms for specific ailments would be to run a clinical trial. We have not attempted to do this as it's beyond the scope of what's feasible as a consumer testing organisation. This is also why we don't have Best Buy recommendations for circulation improvers.
Our testing isn't designed to prove or disprove clinical or health claims made by individual products.
However, as part of our in-house tests, we checked the temperature of participant's feet before and after using, heart rate, and blood oxygen levels, and noted any comments from testers on how it felt to use them, to see if there was any measurable impact on blood flow, circulation or feel after use.
We did this by:
We also sent the Revitive Circulation Booster home with one of our most experienced researchers (who has a relevant health issue) for a longer-term trial. Find out more in the full story about her experiences with using Revitive at home.
Use our expert advice and recommendations to live your best life every day.
Get startedAlicia Day, Scientific Adviser at Which?
Alicia has a BSc in Sports and Exercise Science and an MSc in Sports Performance, so she's well placed to do a deep dive into circulation science.
Alicia has been part of the Which? in-house science team since 2024. In her capacity as scientific adviser, Alicia has advised across projects covering everything from cleaning sprays to running trainers.
At Which? we're free from manufacturer and retailer influence. Find out more about our impartiality and how your support helps us to stay editorially independent.
Even if circulation improvers are suitable for you, they should not be used as a substitute for exercise and movement (where possible) or any prescribed medicine you are taking.
Here are six other lifestyle changes to consider to improve your circulation, as recommended by The British Heart Foundation: