Item: Ekrin B37 Percussion Massager
Rating: 7.14

Strengths and drawbacks

Published specs and owner feedback, not a hands-on test.

Strengths

Lifetime warranty on motor and housing
Published dB, speeds and USB-C PD
Wirecutter top pick

Drawbacks

Battery only 2 years
Buyer-paid returns
Measured battery below the claim

How the score breaks down

Published features and owner comments · not a lab test.

Overall7.1
Social8.4
Usability5.9

Usability5.9/10

Build and specs published4.0/10

Battery and charging6.0/10

Ease of use and noise6.0/10

Warranty and returns8.0/10

Price transparency and value5.0/10

Social8.4/10

Reddit8.0/10

Independent web and YouTube8.0/10

Marketplace reviews9.2/10

How each score was set

Usability 5.9 /10

From published features and owner comments · not a lab test.

Build and specs published4.0/10: Page publishes the motor output (level 3 brushless, 1400-3200 RPM); weight (2.2 lb) comes from the brand's Amazon listing; dimensions, named materials, safety listing and country are not on the page read.
Battery and charging6.0/10: Page says up to 8 hours with USB-C PD charging; the middle of an 'up to' figure (about 4 h) is used and charge time is not published on the page.
Ease of use and noise6.0/10: Noise (35-55 dB), five speeds and a how-to-use guide are published; no timer or carry case is stated on the page read.
Warranty and returns8.0/10: Written lifetime warranty on motor, housing and attachments (battery 2 years), but a replacement after year one ends the lifetime term; 30-day return with buyer-paid shipping.
Price transparency and value5.0/10: $249.99 shows without login and free shipping from $75 is stated; the page shows a sale price against a $249.99 compare-at, the box contents are only partly listed and spare parts are not priced.

Social 8.4 /10

Average of the independent owner-review sources listed below.

Reddit8.0/10: Product · 2 reviews · reddit.com
Independent web and YouTube8.0/10: Product · 4 reviews · nytimes.com, massagegunadvice.com, frontdeskreview.com, massagegunlab.com
Marketplace reviews9.2/10: Product · 604 reviews · amazon.com

Claims we checked

The published claim, then what we found. Live statuses. How we review

The claim

Lifetime warranty

What we found

Fine print

Excludes the battery (2 years); providing a full replacement more than a year after purchase ends the lifetime warranty.

Source · checked Nov 13, 2026

The claim

Battery up to 8 hours

What we found

Fine print

Two independent reviews list 4-6 hours; Wirecutter's spec table repeats the advertised 8 hours.

Source · checked Nov 13, 2026

The claim

35-55 dB ultra quiet

What we found

Fine print

Independent measurements range from 48.8-60.9 dB to about 70 dB depending on the reviewer.

Source · checked Nov 13, 2026

The claim

30-day no-questions return

What we found

Fine print

Customer pays return shipping; a $15 flat fee comes out of the refund for a prepaid label.

Source · checked Nov 13, 2026

More from this brand

Plans listed on the Ekrin brand page. One has a published Health Corners score.

Percussion massager