• Sena Body Heated Knee Massager in black, switched on with the warmth setting showing on its control unit
  • A woman sitting back in an armchair in a lamplit living room in the evening, wearing the Heated Knee Massager on one knee
  • Heated Knee Massager benefits: five heat levels, made to fit real legs, 20-minute auto-off and silent in heat-only mode
  • The Heated Knee Massager fastened around a larger leg, with a strap done up above and below the knee
  • A finger pressing the plus button on the control unit of the Heated Knee Massager
  • The magnetic control unit of the Heated Knee Massager lifted off the wrap, showing its five magnetic contacts
  • Two Heated Knee Massagers side by side, the Pair option for both knees at once
  • What is included with the Heated Knee Massager: the knee wrap with control unit, a white USB-C cable, an extension strap and a user manual
  • A woman fitting the Heated Knee Massager on an older woman's knee at home

Heated Knee Massager

Heated Knee Massager

£79.00
£79.00
Sold out
  • Soothing, adjustable warmth: surrounds the whole knee, not just one spot
  • Made to fit real legs: long, wide velcro straps that fit larger legs too
  • Soft and breathable: comfortable for a full session on the sofa
  • Silent when you want it: run it with heat and no vibration for complete silence
  • Cordless and rechargeable: USB-C, with a timed session that switches itself off
  • Both knees? The Pair saves £29: two for £129, warm both at once or gift one
  • Backed by a 2-year warranty: with 60-day returns and real people on support

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local_shipping Free delivery

verified_user 2-year warranty

autorenew 60-day returns

Sena Body Heated Knee Massager in black, switched on with the warmth setting showing on its control unit

Heated Knee Massager

£79.00
£79.00
Sold out
  • 1 × Heated Knee Massager
  • 1 × extension strap
  • 1 × USB-C charging cable
  • 1 × user manual

The Pair includes two of everything except the manual.

  • Heat: adjustable warmth, 40-60°C across five levels
  • Massage: three vibration modes
  • Session: around 20 minutes, then auto switch-off (restart any time)
  • Power: cordless, USB-C rechargeable (around 3 hours to fully charge)
  • Controls: detachable magnetic control unit, four touch buttons, with a panel lock
  • Fit: adjustable wrap-around straps, fitting a thigh up to about 48 cm and a calf up to about 44 cm
  • Material: soft, breathable neoprene wrap, wipe clean
  • Product dimensions: approx. 48 × 28 cm, laid flat
  • Colour: Black

Shipping
We offer free delivery on all orders. Orders are processed within 1-3 business days, then take 5-8 business days in transit, so most orders arrive within 6-11 business days. For full details, see our Shipping Policy.

Returns
Items can be returned within 60 days of delivery under our 60-day returns policy. For full details, see our Returns & Refunds Policy.

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For the evenings your knees ache most

If you have tried the hot water bottles, the gels and the rubs and your knees still ache come evening, this is the one built to actually fit and get properly warm. Wrap it on, settle in, and it switches off on its own.

bedtime
Your 20-minute wind-down

Wrap-around warmth and a gentle massage help ease a stiff, aching knee at the end of the day. Many people make it the last thing they do before bed, and it switches off on its own.

volume_off
Silent when you want it

Run the warmth on its own and the wrap makes no noise at all. Add the vibration only when you want it.

A woman watching television in the evening with her leg on a footstool, wearing the Heated Knee Massager

thermostat
Soothing, wrap-around warmth

Adjustable heat that surrounds the whole knee, not just one spot. Five levels, from a gentle warmth to hot.

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Made to fit, cordless to wear

Long, wide straps wrap comfortably around larger and slimmer legs alike, and it is cordless, so wear it on the sofa, at your desk or in bed. Simple enough that people buy it for a parent as much as for themselves.

Sena Body vs. a typical knee massager

Not just another knee gadget: the one built to actually fit, get warm and last. See how Sena Body compares.

  Others
Genuinely warming, adjustable heat
Long, wide straps that fit larger legs
Lockable panel, so settings don't change by accident
60-day returns
2-year warranty

How to use

  • The control unit of the Heated Knee Massager charging with the white USB-C cable plugged in

    1. Charge

    Top up via the USB-C cable before your first session.

  • A woman fastening the lower strap of the Heated Knee Massager around her leg

    2. Wrap it on

    Fasten the adjustable straps snugly around your knee.

  • The Heated Knee Massager worn on one knee with the warmth setting lit on its control unit, while sitting back in an armchair

    3. Warm up and relax

    Choose your heat and massage level, sit back, and let the timer do the rest.

    Frequently asked questions

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    Will it fit my leg?

    Yes, for most legs. Two adjustable straps fasten above and below the knee, taking a thigh up to about 48 cm around and a calf up to about 44 cm. If it does not fit yours comfortably, our 60-day returns policy means you can simply send it back.

    Yes. The warmth is adjustable from 40°C up to 60°C, from a gentle heat to a deeper, soothing warmth. Start on a lower setting and turn it up to suit you. Take care not to use the highest heat for long periods, or fall asleep while it is on. Use it on comfortable, healthy skin, not on swollen, inflamed or broken skin, and not while exercising.

    This is a comfort ritual, not a cure. What it does, it does properly. Wrap-around warmth you can genuinely feel, set between 40°C and 60°C, with a gentle massage, for around 20 minutes at a time. For tired, stiff, aching knees at the end of the day, that is exactly what most people want it for.

    A hot water bottle warms one spot, starts cooling the moment it is poured, and slides off as soon as you move. This wraps warmth right around the knee, holds the temperature you choose for the whole session, adds a gentle massage a bottle cannot, and switches itself off when it is done.

    Each session runs for about 20 minutes and then switches off on its own, so you can simply relax and let it work. You can start it again any time.

    The warmth on its own is completely silent. The vibration is audible when it is running, so if you want silence, run the heat by itself.

    Yes, it is completely cordless and recharges over USB-C, so there are no wires or wall plugs while you use it. The control unit lifts off its magnets to charge, a full charge takes about three hours, and it gives you several sessions before you need to top it up. It cannot be used while it is charging.

    A small control unit sits on the wrap, held on by magnets. There are four touch buttons: power, mode, and + and - for the warmth. They need only a light touch, and no app. Hold the mode button for two seconds to lock the panel so nothing changes by accident.

    Yes. One wrap fits either knee, so most people move it from one knee to the other, one 20-minute session at a time. If you would like to warm both at once, choose the Pair, one for each knee.

    Yes, it is one of the most common reasons people buy it. The controls are four simple touch buttons with no app, the straps are easy to fasten, and a little everyday comfort is the kind of gift that actually gets used.

    Wipe the wrap with a soft cloth, lightly damp if you need to. It is not machine washable, so do not soak it. Take the control unit off first.

    The Heated Knee Massager is a relaxation and comfort device, not a medical product. If you're pregnant, or have a pacemaker, a heart condition, diabetes, reduced sensation in your legs, or any circulation concern, please check with a medical professional before use.

    Yes. Every Heated Knee Massager is covered by a 2-year warranty, backed by our support team. That sits alongside our 60-day returns policy. See our Returns & Refunds Policy for details.

    Shipping
    We offer free delivery on all orders. Orders are processed within 1-3 business days, then take 5-8 business days in transit, so most orders arrive within 6-11 business days. For full details, see our Shipping Policy.

    Returns
    Items can be returned within 60 days of delivery under our 60-day returns policy. For full details, see our Returns & Refunds Policy.