The MANSCAPED® The Lawn Mower® 4.0 PRO is a dedicated groin and body hair trimmer designed to offer a superior grooming experience for men.
This advanced tool comes with an updated SkinSafe™ Trimmer Blade, is waterproof for both wet and dry use, and features versatile USB-C and wireless charging compatibility. It is specifically engineered to be a reliable men’s ball shaver and includes a travel lock for convenience.
Positioned within the Beauty & Personal Care category on Amazon, specifically under Shave & Hair Removal > Men’s > Body Groomers, it is a prominent choice for personal grooming.

Key Features for Enhanced Grooming
The Lawn Mower® 4.0 PRO is packed with features designed to provide a safe, efficient, and comfortable grooming experience:
Updated SkinSafe™ Technology:
At its core, the device features an updated SkinSafe™ ceramic blade that is rounded for comfort. It incorporates a built-in guard specifically designed to help reduce nicks and cuts, offering a more secure shave, especially for sensitive areas. It’s important to note that SkinSafe™ technology does not guarantee cut protection.
For versatility in trimming, the device also includes two adjustable comb attachments that allow users to trim hair lengths from 2mm to 12mm. The SkinSafe replaceable blade system means you can have multiple blades ready for various body areas.
Waterproof Wet/Dry Grooming:
The trimmer boasts a waterproof design, allowing for convenient use in the shower or in dry conditions. This feature also simplifies cleanup, as the device can be easily rinsed under a faucet.
It is IPX7 rated, meaning it can withstand immersion in up to one meter of fresh water for up to 30 minutes.
Effortlessly Powerful Performance:
After a full charge via USB-C or wireless charger, the Lawn Mower® 4.0 PRO delivers consistent performance. It maintains constant RPMs, which helps prevent the blade from slowing down as the battery depletes, ensuring a consistent shave.
Users can expect up to 60 minutes of runtime on a single charge. To achieve an optimal shave, it is recommended to gently place the flat side of the blade flush against the skin and shave against the direction of hair growth.
Integrated Travel Lock and LED Light:
For those on the go, the travel lock feature helps prevent accidental powering of the device. It can be engaged or disengaged by pressing and holding the lock button for 5 seconds.
Additionally, a built-in LED light illuminates the grooming area, helping users ensure they don’t miss a spot and making it easier to navigate hard-to-reach areas for a consistently clean trim. The product also comes with an EVA Travel case.
Versatile Usage Areas:
While the trimmers were specifically designed for below-the-waist grooming, they are also effective for other body areas.
The Lawn Mower® 4.0 PRO is suitable for groin, body, and back hair, enabling a comprehensive grooming experience that aims to leave users feeling more confident and comfortable.
User Experience and Customer Insights

The MANSCAPED® The Lawn Mower® 4.0 PRO holds an average customer rating of 4.2 out of 5 stars based on 675 global ratings.
Analysis of customer reviews highlights several key aspects:
Value for Money:
Many customers find the trimmer offers good value for money. Positive feedback includes descriptions such as “Great product,” “Perfect price,” and “So worth it”. However, some customers disagree, stating it’s “Not worth the money”.
Battery Life:
Customers are satisfied with the battery life, frequently noting that it “Keeps a charge for a long time” and offers “Excellent battery life”. Reviewers appreciate that the battery is “impressive”.
Ease of Use & Ergonomics:
The trimmer is frequently praised for being easy to use and having an ergonomic design. Users describe it as “easy to hold onto,” “smaller and easier to use,” and “very easy to hold and maneuver”.
The sleek design and comfortable feel in hand are also noted benefits. One customer specifically mentioned that it “glides smoothly without pinching or knicking”.
Cut Quality and Functionality:
Customer experiences with the trimmer’s performance are mixed. Some consider it the “Best trimmer” they’ve had and report “No cuts, nicks or scratches”. They praise its ability to “trim without pinching” and provide a “very close shave”.
However, other reviews indicate that it “did not cut my hair easily” or even that it’s the “worst trimmer” they’ve seen, with some saying it “fails to cut at all,” especially fine hair, or that it “skips hairs”. Some users noted it might require “a few more passes to get as close as the older models”.
Build Quality:
Opinions on the build quality are also mixed. Some customers describe it as a “Good product” and note its “durability”.
Conversely, some find the clipper guards “not that good at passing through” or “doubt the quality” despite primary function being good. One review describes it as feeling “light almost like a thin plastic”.
Hair Pull Issues:
A notable concern raised by customers is the occurrence of “hair pull”. Several negative mentions indicate that the trimmer “will skip over hairs,” “gets caught up a lot in the hair,” “push all the hair down and don’t cut anything,” or “tugged and pulled at my skin”.
Specific Mentions:
Some users appreciate the light feature, noting it “really helps”. One reviewer who owns multiple Manscaped models expressed a preference for the 2.0 and 4.0 versions over the 3.0, 4.0 Ultra, or 5.0, citing issues with the light not staying on and the removal of the charging dock in newer models.
Technical Specifications
- Package Dimensions: 8.23 x 4.37 x 3.15 inches
- Item Weight: 0.58 Kilograms (approximately 1.28 Pounds)
- Item Model Number: 30-00004
- Batteries: 1 Lithium Ion battery required (included)
- UPC: 810040573798
- Manufacturer: MANSCAPED
- ASIN: B0CVJ257SG
- Country of Origin: China
Pricing, Availability, and Returns
The MANSCAPED® The Lawn Mower® 4.0 PRO is generally priced at $89.99. An “Open Box – Like New” condition is sometimes available for $82.32, offering a 9% savings, though these may not include free Prime shipping and stock might be limited.
The product is typically shipped from and sold by Manscaped via Amazon Fulfillment, ensuring a secure transaction.
Amazon offers free delivery, with Prime members potentially receiving their order faster. The item also qualifies for free returns, providing a convenient and hassle-free return process.
Protection Plans and Product Support
To provide additional peace of mind, customers have the option to add a protection plan from Asurion, LLC. These plans cover accidental damage, including drops, spills, and broken parts, as well as malfunctions after the manufacturer’s warranty.
They include 24/7 support and an easy, frustration-free claims process, often resolved within minutes by e-gift card, replacement, or repair.
Available protection plans include:
2-Year Personal Care Protection Plan:
Priced at $8.99, it starts on the date of purchase and covers drops, spills, cracked screens for portable products, and power surges from day one. Malfunctions are covered after the manufacturer’s warranty.
3-Year Personal Care Protection Plan:
Priced at $11.99, with similar coverage details to the 2-year plan, but for an extended duration.
Complete Protect:
A monthly plan at $16.99/month, offering extensive coverage for eligible products purchased from Amazon within the last year and new purchases going forward. This plan covers up to $5,000 in total claims per 12-month period and can be canceled anytime.
Product support is also included from Amazon, offering free options like live phone/chat with an Amazon associate, manufacturer contact information, step-by-step troubleshooting guides, and help videos to resolve issues and extend product life.
Important Safety Information
For safe use, it is crucial to adhere to the following safety guidelines:
- CAUTION: There is a risk of injury from moving parts.
- Keep out of reach of children and do not use on infants.
- Avoid contact with eyes and skin.
- Always unplug and allow to cool before cleaning.
- Do not immerse in water beyond the IPX7 rating.
- Always follow recommended cleaning and maintenance procedures.
Conclusion
The MANSCAPED® The Lawn Mower® 4.0 PRO is a feature-rich grooming tool designed for precision, comfort, and versatility.
With its SkinSafe™ technology, waterproof design, LED light, and ergonomic build, it aims to make body grooming safer and more convenient, especially in sensitive areas.
While many users praise its battery life, ease of use, and close shave, others report concerns like hair pulling and inconsistent cutting performance.
Overall, it offers good value for those seeking a high-end grooming experience, but may not meet everyone’s expectations. It’s a solid choice, especially when paired with protection plans and Amazon’s return policy.
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