Liz lives and works in the Inland Empire of CA. She was a multi-sport athlete in her youth, competing in softball, basketball, volleyball, soccer, and swimming. Liz swam collegiately at Webster University, where she earned her B.A. degree in Communications. She is a licensed Physical Therapist Assistant with an A.A.S. degree from St. Louis Community College – Meramec. Liz has advanced training in orthopedic physical therapy through NextGen PT and movement analysis through Movement Links. She is also a certified NASM-Performance Enhancement Specialist. Liz is passionate about providing parents and coaches with the knowledge and resources necessary to create a safe and enjoyable environment for young athletes.
The Ekrin B37 is a mid-amplitude massage gun built around a 12mm stroke length and 56 lbs of stall force. It runs from 1400 to 3200 RPM on five speed levels and does not slow down when you press into the muscle.
The 15-degree angled handle is more than a design detail. It reduces wrist strain compared to straight T-shaped handles. During 10 to 15-minute sessions, we did not experience the usual wrist fatigue that comes from twisting your arm into awkward positions to reach different muscle groups.
There is no Bluetooth, no LCD display, and no app integration. The handle also feels slightly thick for users with smaller hands. Those are real trade-offs to consider. On the other hand, the 5 to 6-hour battery life is excellent, and the Samsung battery cell gives extra confidence that the performance will hold up over time.
If you care more about consistent physical performance than connected features or brand ecosystems, the B37 is a strong, well-priced option backed by a lifetime warranty. If you’re comparing it against other top-rated models, it also helps to see how the strongest massage guns we’ve tested compare across the category.
Ekrin B37 Massage Gun – Video Review
We put together a review video of the Ekrin B37 so you can see exactly what comes in the box and how the attachments feel up close. We also tested the stall force at each speed level to show how it actually performs under pressure.
Ekrin B37 Massage Gun – See the unboxing, its attachments, and our performance test.
Our Deep Honest Ekrin B37 Massage Gun Review
Our Ekrin B37 Rating
Quality
Effectiveness
Usability
Accessories
Price Value
4.8
Summary
Ekrin’s B37 percussion massager is a powerful, yet slick-looking device that outperforms some of the biggest names in the business. It holds confidently, comes with the right set of accessories, features a lifetime warranty and, perhaps most importantly, it is able to provide the deep-to-the-bone massage.
Sending
User Review
4.03
(96 votes)
Unboxing, Build Quality, and First Impressions
The B37 arrives in a hard-shell carrying case with dual zippers and neatly organized compartments. The case feels sturdy and protective, which is a noticeable upgrade over the soft pouches that often come with devices in this range.
Inside the case, you will find the massage gun, four attachments secured in designated slots, a charging cable, a user manual, and an Ekrin logo sticker. The manual is 86 pages long with illustrations and practical guidance on attachment use and general percussion therapy basics.
The device itself looks polished. The satin black finish gives it a more premium appearance than the price suggests. In hand, it feels solid and well-built, without the flex or soft plastic feel that shows up in lower-cost models.
Semi-rigid carry case
Build Quality & Design Improvements
Let’s take a look at the build and design of this model.
Frame and Grip Design
Ekrin’s 15-degree angled handle makes a difference almost immediately. It reduces wrist strain during sessions and makes it easier to reach different muscle groups without contorting your arm.
The angled shape also allows for a comfortable two-handed grip thanks to a small extension at the top of the handle. This comes in handy when treating someone else or when applying firm pressure that requires extra stability.
Weight and Balance
At 2.2 lbs, the B37 sits comfortably in the middle of the full-size weight range. It does not feel heavy during normal session lengths.
Balance feels neutral from different grip positions. While the motor and Samsung battery likely account for most of the internal weight, the distribution avoids a top-heavy feel and does not cause unnecessary fatigue.
Materials and Build Quality
The housing uses quality plastic with a satin black finish and silicone rubber grip sections on the handle. There are no metal accents or premium overlays, but the construction feels durable and consistent throughout.
The handle diameter is slightly large. Our testers with smaller hands noticed this more than others. The textured silicone helps prevent slipping, but users with shorter fingers should take this into account.
Across multiple sessions under sustained pressure, we noticed no rattling, creaking, or vibration transfer to the handle.
Ekrin B37 Massage Gun Attachments
Four attachments come with the B37: a ball head, bullet head, flat head, and fork head. The selection covers most standard recovery needs without venturing into specialty territory.
The ball head uses high-quality EVA foam that feels smoother and more durable than the foam used in many lower-cost devices. The fork and bullet heads are made from hard plastic and have shown minimal wear after six months of regular use.
Attachment System
Attachments use a push-and-pull system. The fork head has directional guidance, while the other three can be inserted in any orientation. Installation is simple, though our smaller-handed testers needed slightly more effort when removing them.
During sessions, attachments stayed secure with no wobbling or loosening under pressure.
Standout Attachments
The flat head ended up being our most-used attachment. Its firm plastic construction works well across large muscle groups like pecs, glutes, and calves. It keeps its shape under pressure and spreads force effectively across a wider surface area.
The fork head includes a small guide notch that prevents it from rotating during use along the spine. That small design detail matters when targeting paraspinal muscles, where precise positioning makes a difference.
Controls and Display
A single button controls everything. A long press powers the device on or off, and quick presses cycle through the five speed levels in order.
The setup is straightforward and stays simple during use. There are no extra buttons to manage and no multi-step menus to navigate. If you prefer a clean, uncomplicated operation, this design works well.
Speed Indicators
Five LED lights below the power button indicate the current speed level and battery charge. There is no LCD display, no detailed readout, and no pressure sensor.
The LEDs provide enough information to operate the device confidently. Users who want an OLED screen showing exact RPM numbers or applied force metrics will miss that level of detail, but the minimalist design keeps distractions to a minimum.
Stall force reached 56 lbs at maximum speed. Across the five levels, we measured approximately 28 lbs at speed one, 32 lbs at speed two, 40 lbs at speed three, 52 lbs at speed four, and 55 lbs at the top setting. At higher speeds, it takes deliberate, heavy pressure to stall the motor.
The Ekrin B37 maintains steady percussion under load across all five speeds. Many massage guns lose momentum when you press into the muscle. This one keeps working at the same intensity, which makes sessions feel more effective and predictable.
The 12mm stroke length provides enough depth for most muscle groups when supported by a strong stall force. It will not match longer-stroke devices in pure penetration, but the wider speed range and sustained power balance things out well for general recovery.
The angled handle made it easier to reach about 90 percent of muscle groups without awkward positioning. Lower back, upper traps, and glutes were noticeably easier to treat compared to straight-handle designs that strain the wrist.
Speed Range and Control
We measured 1400 RPM at the lowest speed and 3200 RPM at maximum, matching the advertised range exactly. That lower starting speed is especially useful. Many devices begin around 1750 RPM or higher, which can feel too aggressive for sensitive areas or warm-up work.
Five speed levels offer solid control with well-spaced increments. Speed changes happen smoothly with quick button presses and no sudden jumps.
Noise Level
In our testing environment with 35 dB background noise, we recorded 48.8 dB at the lowest speed and 60.9 dB at maximum. Ekrin advertises 35 to 55 dB, which is slightly optimistic. In practice, the device is still quiet enough for home use without disturbing others in nearby rooms. If lower noise matters during recovery sessions, it may also help to look at some of the quieter massage guns we have tested.
The sound profile is smooth and consistent, with no harsh mechanical tones or rattling under pressure. Vibration transfer to the handle is minimal, which helps keep longer sessions comfortable.
Battery Life
The 2550 mAh Samsung lithium-ion battery delivered between 5 and 6 hours of runtime under mixed speeds and moderate pressure. Ekrin’s advertised 4 to 6 hours aligns with what we experienced. With daily 10-minute sessions, you can expect more than 10 days between charges.
The use of a Samsung cell is meaningful. We have tested devices with unbranded batteries that showed noticeable degradation within months. After six months of testing the B37, performance remains consistent with no measurable drop in runtime.
The B37 charges via USB-C, replacing the micro-USB used in earlier versions. This keeps it aligned with current charging standards and eliminates the need for proprietary cables.
The battery is non-removable, so you cannot swap in a fresh one mid-session. The hard-shell case adds some bulk but provides solid protection during transport. At 2.2 lbs plus the case, the kit remains manageable for most travel needs.
Who Should Buy it?
The B37 is a strong choice for users who care most about core performance metrics. If stall force, amplitude, and speed range matter more to you than Bluetooth or app-based routines, this device delivers without locking you into a brand ecosystem.
Athletes and regular gym-goers will find the power sufficient for post-training recovery on large muscle groups. The 56 lbs stall force and 3200 RPM top speed handle quads, glutes, back, and calves without feeling weak. In our testing across all these areas, the motor held up consistently.
First-time buyers should give it serious consideration. It also stands out among the better price-to-performance options in the category. The single-button operation keeps things simple, the build quality exceeds expectations at this price, and the lifetime warranty lowers long-term risk. It is not something most users will outgrow quickly.
Who Should Skip it?
Skip the B37 if maximum amplitude is your top priority. The 12mm stroke length will not satisfy users specifically seeking 14 to 16mm for aggressive deep-tissue penetration on dense muscle groups. If portability matters more than maximum depth, compact massage guns designed specifically for travel and lighter recovery may be a better fit.
If you want connected features, this is not the right model. There is no Bluetooth, no app integration, no guided routines, and no pressure sensor display. The B37 focuses entirely on physical performance.
Users with smaller hands may find the handle diameter uncomfortable over longer sessions. Ekrin’s 365 model offers a slimmer grip, though with some trade-offs in power. If possible, it is worth testing the grip before committing.
Final Verdict
The Ekrin B37 delivers strong, consistent performance at a price well below many devices with similar specifications. The 56 lbs stall force, 3200 RPM maximum speed, and 5 to 6 hour battery life are standout figures in this range. After six months of testing, performance remains steady, and the Samsung battery cell adds confidence in long-term durability.
The 12mm amplitude does set a limit for users who want maximum penetration depth, and the lack of connected features will matter to some. The handle size is also a real consideration for smaller-handed users.
If you want reliable, measurable performance without extra tech features or premium pricing, and you value lifetime warranty coverage, the B37 is a well-built and thoughtfully designed option.
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