Theragun PRO Plus review: a physio asks if the £599 gun beats the £299 Prime

Twenty to midnight. Jodie, my partner, is home from a twelve-hour shift on the wards, still in her navy scrubs, feet up on my lap on the sofa. She doesn't open her eyes. She just says: "Do the warm one."

"The warm one" is the heated head on the Theragun PRO Plus, and by week three of this test it had become the most requested object in our house. That surprised me. I'm a physiotherapist in Huddersfield, I've used percussion guns in clinic for years, and I went in fairly sure the PRO Plus was a £599 gun dressed up with features nobody needs.

So I set it against the gun most people should really be looking at, the Theragun Prime at £299. Same brand, same triangle handle, half the price. Five and a half weeks, 81 logged sessions, a clinic, a rugby club and a very tired nurse. Here's where the extra £300 goes.

What £599 gets you that £299 doesn't

Both guns share the things physios care about most. Each punches with 16 mm of amplitude, the depth of every stroke, and each has the triangular handle that lets you get round to your own back without contorting your arm. So the basic percussion feels similar at the same speed.

The PRO Plus adds a lot around that. A heated attachment and a vibration attachment come in the box, the body carries a strip of near-infrared LEDs, the grip hides a pulse sensor used for guided breathing, a screen with routines, and a much stronger motor that Therabody rates at about 27 kg (60 lb) before it stalls. The Prime is rated at about 13.6 kg (30 lb). It has two attachments in the box and a simple button.

On paper, that's a clear gap. In real use, some of those extras earned their place and some didn't. So I ran them head to head: same muscles, same days, same logbook.

How I tested it

I bought both at retail and used them from 27 April to 3 June. At home, after my Sunday club rides over the Pennines and on desk-heavy admin days. In clinic, with 11 regulars who'd had percussion from me before and were happy to compare. At the rugby club on Saturdays, as a warm-up tool before matches. And on Jodie, after night shifts, with her full and enthusiastic consent.

Each session got a line in my logbook: which gun, which head, which muscle, what speed, how long, plus a 0 to 10 soreness rating beforehand and again when I woke up. Alongside that I measured things: noise at 1 metre on every speed, heat-up time and surface temperature of the heated head with an infrared thermometer, and battery run-downs on mixed use. Our whole team works to the same rules, laid out on our how we test page.

The prop test

Stall force is how hard you can lean before the gun gives up. Brands quote big numbers and it's hard to check at home. So I checked it on the biggest pair of hamstrings I have access to, which belong to one of our props.

At speed 5, leaning in the way I would with a stiff hamstring, the Prime stalled 6 times in a 10-minute session. The PRO Plus didn't stall once. The prop's review was one word, delivered from face-down on the bench: "Better." On average-sized legs, mine and most of my patients', the Prime didn't stall at all. That matters when you're deciding which one you need.

"Nobody needs 27 kilos of force on their calves. What you want is a gun that keeps its stroke when you lean in a bit, because that's where the Prime runs out of road on bigger muscles." Darren, clinic notes, week two

More force isn't always better, mind. Two of my patients said speed 5 on the PRO Plus was simply too much for them, and they were right. That's where the part of this gun I didn't expect to like comes in.

The heat head: the reason to spend the extra

The heated attachment has three levels. On my infrared thermometer it reached the first level in 1 minute 50 seconds from cold and topped out at about 53°C on the surface after just over 3 minutes. It keeps hammering while it heats, but the broad, flat face softens every blow, so it comes across as warm kneading rather than a drill.

In clinic, two minutes of heat on the upper traps before hands-on work got stiff necks moving noticeably more easily. Eight of my 11 patients preferred it to the standard ball for that warm-up. At home, after long rides, a few minutes on my quads with heat, then a minute with the ball, took my next-morning soreness from around 6 to around 3.5. The Prime alone got me to about 4.

Across the whole test, the heat head was used in 46 of 81 sessions. Nothing else came close. If you'd never use it, most of the price difference disappears.

The vibration head, and Jodie's feet

I expected the vibration head to live in the case. It's a flat, softer attachment that buzzes rather than hammers, and on my own legs it felt like a warm-up act. Then Jodie tried it on the soles of her feet after a night shift.

Twelve hours on a hospital floor leaves your feet throbbing, and percussion on the arch is too much for most people. Vibration, on a low setting, for a couple of minutes per foot, was exactly right. She used it after 14 of her shifts during the test. On three of them she fell asleep on the sofa before I'd finished, and I'm counting that as five stars.

I'm less sure about the near-infrared LEDs. You rest the side of the gun on the painful area for a few minutes and there's a mild glow of warmth. Light therapy for recovery has some promising early studies behind it, nothing I'd call settled, and it wouldn't be a reason for me to spend more. The guided breathing, using the heart rate sensor in the handle, was nice once and then forgotten.

Weight, noise and battery: living with it

The weight is what I'd warn you about. At 1.65 kg it's no bother on legs, or when a partner is doing the work. On my own upper shoulder, my arm started to complain after about 3 minutes 20 seconds. With the Prime, at around 900 g, I managed over 5 minutes before I noticed. If you'll mostly be treating yourself, and mostly your neck and shoulders, that's a big deal.

Therabody's QuietForce motor is quieter than older Theraguns. At 1 metre, I measured 56 dB on speed 1 and 65 dB on speed 5. The Prime read 59 and 68. Both are fine in a living room. Neither is subtle through the party wall of a terraced house at midnight, as next door's dog has made very clear.

Battery was solid: 2 hours 24 minutes of mixed use before it stopped, not far off Therabody's figure of 150 minutes. It charges by USB-C, so it shares a cable with my phone. In practice, I charged it about every ten days.

PRO Plus and Prime side by side

Look at the weight and the heat rows together. Those two lines decide which gun is right for most people, more than any stall number.

My rules for any massage gun

This applies whichever gun you buy, and it's what I tell patients on day one.

• 60 to 90 seconds per area, keep it moving. Parking the head on one knot for five minutes usually leaves you sorer, not better.
• Start on the lowest speed. Most of the benefit comes from relaxing the muscle and getting the blood moving, not from force.
• Stay off bone and joints. Shins, spine, kneecaps and collarbones are out. Keep well away from the throat. On the side of the neck, use the soft dampener, low speed, a few seconds at most.
• Not on fresh injuries. For the first 48 to 72 hours after a strain, swelling or bruising, leave it alone.
• Ask your GP first if you're on blood thinners, pregnant, have varicose veins or any history of clots or nerve problems.

The PRO Plus screen helps here. Its routines tell you which head, which speed and which muscle, and then move you on before you overdo it. The Prime has routines too, but only in the app on your phone, which in practice meant I rarely used them.

Spend the £599, or save £300?

Recovery happens mostly overnight, and a gun only helps at the edges. I wore an Oura ring through this test, and my two hardest weeks on the bike showed up in my overnight numbers before they showed in my legs. Gillian's Oura Ring 4 review goes into what those numbers can and can't tell you.

Other guns I'd send you to first

Theragun Prime (6th gen): the one I'd recommend to most runners, cyclists and gym-goers. Same amplitude, same handle, half the price, much lighter.

Theragun Mini: fits in a saddle bag or a handbag, shallower strokes, and better on calves and forearms than its size suggests. Handy as a travel or spare gun.

Hyperice Hypervolt 2 Pro: quieter and a bit lighter, with a faster, softer feel. Less depth than the PRO Plus but easier on your arm for long sessions.

On the grooming side, I've also been living with the Philips OneBlade Pro 360 on my face, my legs and the rugby club's ankles. For everything else we're testing, see the blog.

Theragun PRO Plus: what patients ask me