Massage guns are sold on quietness more heavily than almost anything else we cover. Nearly every page uses the word, several brands trademark a name for it, and the category is full of phrases like whisper quiet and ultra quiet.
We checked eighteen products from seven brands for an actual figure. Eleven publish one. The rest publish adjectives.
Our 7 picks are listed above, with full specifications for each.
The biggest name publishes nothing
Therabody does not publish a decibel figure for the Theragun PRO, the Prime or the Mini, on any product page or in any current manual PDF. What it publishes is QuietForce Technology, a trademark, and sentences like "delivers quiet, deep muscle therapy".
It does not publish a stall force or a percussions per minute figure either, and its 16mm amplitude appears only inside the manual PDF rather than on the page.
We are not saying a Theragun is loud. We have no idea, and neither does anyone quoting a number at you, because the maker has not published one. What we can say is that a site which ranks products by the figures makers publish cannot rank a product whose maker publishes none, so Theragun sits in the also considered list with the reason stated.
The budget brands publish more than the premium ones
This is the reverse of what we find in most categories, and it is consistent here.
Renpho publishes, in one block: noise, amplitude, stall force, speed range, battery life, weight, attachment count and warranty. Opove publishes the same set for the Apex and the M3 Mini. Both sell for a fraction of the premium guns.
Hyperice publishes a decibel figure and then no amplitude and no stall force for any Hypervolt in its range, and no warranty term on the product page. Ekrin Athletics publishes a noise range and no amplitude, no stall force and no weight.
If you want to compare machines rather than brands, the cheap end of this category is where the data is.
Nobody says where the microphone was
Zero of eighteen products name a measuring distance. None names the speed setting the figure was taken at, none says which attachment was fitted, and none cites a test standard.
Most publish a ceiling rather than a reading: <=45dB, < 49dB, "below 40dB". A ceiling is a promise about the worst case, which is genuinely useful, but it is not a measurement you can line up against another brand's ceiling taken under conditions neither of them describes. For the general problem, see why you cannot compare dB ratings across brands.
Ekrin Athletics is the closest thing to an exception, publishing "35 - 55 dB Ultra Quiet" as a range across speeds. It still does not say which speed gives 35 and which gives 55, but it at least admits the number moves.
Quiet and weak arrive together
The two lowest figures here, both 40 dB, belong to minis. The Opove M3 Mini publishes 13.63 lbs of stall force and 7mm of amplitude. The Bob and Brad Q2 Ultra Max Mini publishes 35 lbs and an adjustable 5mm to 11mm.
The full size guns with 50 lbs of stall force publish 45 to 49 dB. That is not a coincidence: a motor driving a longer stroke against more resistance makes more noise.
So the honest way to read this table is not to find the smallest number. It is to decide how much stroke depth and stall force you need first, then take the quietest published figure among the machines that clear that bar.
Where the brands went
Four brands we set out to cover turned out to have no usable source. Achedaway appears to have left the category, and its massage gun collection page now lists cupping devices. Sportneer's own site sells no massage guns. Legiral's domain is now a broker listing, and Toloco's is parked while several unrelated sites claim to be the official store.
We did not measure any of these devices. Every figure here is the maker's own, quoted as published, with the condition attached wherever the maker attached one, which in this category is almost never.
