Choosing the right laser hair removal machine affects treatment quality, patient satisfaction, and long-term profitability. Many clinic owners compare triple-wavelength (755 nm + 808 nm + 1064 nm) and 4-wavelength (755 nm + 808 nm + 940 nm + 1064 nm) systems when planning equipment investments. This guide explains how each technology works, the clinical value of adding 940 nm, and the differences between the DepiMED Android and DepiMEDiX platforms in power, cooling, spot sizes, smart features, and maintenance.
The primary difference is the number of laser emission peaks integrated into the handpiece matrix and the specific tissue structures they address. Both configurations use a synchronous blended output: all wavelengths fire simultaneously in a single pulse, treating multiple depths at once without swapping handpieces.
The DepiMED Android combines 755 nm, 808 nm, and 1064 nm laser bars into one optical matrix. Each pulse simultaneously targets superficial and deep follicle structures. The 755 nm wavelength focuses on fine, superficial hair, 808 nm treats the bulb and bulge with balanced penetration, and 1064 nm reaches the deep dermal papilla while minimizing epidermal heating.
The DepiMEDiX adds 940 nm to the same synchronous optical matrix. Besides melanin-based heating, the 940 nm wavelength targets oxyhemoglobin in the perifollicular blood vessels, reducing the follicle’s blood supply while the other wavelengths destroy the hair through selective photothermolysis. Together, the four wavelengths treat the bulge, bulb, vascular network, and dermal papilla in a single pulse.
The 755 nm wavelength has the highest melanin absorption among the four wavelengths. It is highly effective for fine, lightly pigmented hair and performs best on Fitzpatrick skin types I–III, where epidermal melanin competition is relatively low.
The 808 diode laser offers the best balance between penetration depth and melanin absorption. It effectively reaches both the bulb and bulge, making it suitable for most terminal hairs across a wide range of skin types. This balance makes it the core wavelength used in most professional diode laser systems.
The 940 nm wavelength introduces an additional treatment mechanism by targeting oxyhemoglobin rather than relying only on melanin absorption. It coagulates the small blood vessels surrounding the follicle, reducing its nutrient supply. This improves treatment outcomes for fine, light-colored, and residual hairs while also reducing epidermal heating, making treatments more comfortable for darker skin types.
With its deep penetration and low melanin absorption, 1064 nm delivers energy directly to the deep dermal papilla while minimizing heat accumulation in the epidermis. It is especially valuable for safely treating Fitzpatrick skin types V and VI, reducing the risk of burns and post-inflammatory hyperpigmentation.
Internal comparative testing showed that under identical fluence settings, the 4-wavelength platform achieved 92% hair clearance within four sessions, compared with 84% for the triple-wavelength configuration. The additional 940 nm wavelength improves results on dense terminal hair as well as fine residual hair that often remains after conventional treatments.
Clinical tracking showed that patients typically required four to five sessions with the 4-wavelength platform instead of approximately six sessions with the triple-wavelength system. Pain evaluations also demonstrated about a 30% reduction in discomfort for Fitzpatrick IV–VI patients, thanks to lower epidermal heating provided by the 940 nm wavelength.
The addition of 940 nm allows one platform to perform well across a broader patient population. It improves clearance of lightly pigmented hair while maintaining safer treatment conditions for darker skin, giving clinics greater flexibility without compromising efficacy.
The DepiMED Android uses 800 W to 1200 W laser bar configurations suitable for routine clinical workloads.
The DepiMEDiX uses a high power laser diode array delivering 1200 W to 1600 W, providing higher energy reserves for large spot sizes, faster repetition rates, and consistent fluence during demanding treatment schedules.
The triple-wavelength platform combines thermoelectric cooling (TEC) with a high-volume radiator loop, maintaining the sapphire contact window between 0°C and −4°C.
The DepiMEDiX adopts an industrial-grade compressor together with active TEC refrigeration, allowing continuous 24/7 operation while cooling the sapphire tip to −5°C to −10°C. This provides stronger epidermal protection during high-fluence treatments, particularly for darker skin.
The DepiMED Android offers fixed spot sizes of 12 × 20 mm and 12 × 24 mm.
The DepiMEDiX features interchangeable magnetic spot tips including:
These interchangeable tips allow faster treatment of large body areas while providing greater precision for facial regions and small treatment zones.
The DepiMED Android uses standard embedded firmware with preset treatment parameters.
The DepiMEDiX operates on a 15.6-inch Ultra-HD Android touchscreen with an integrated handpiece display. Its smart system supports:
These features help improve workflow efficiency while reducing operator error.
A triple-wavelength platform such as DepiMED Android is an excellent choice for clinics that primarily treat Fitzpatrick skin types I–IV with coarse, dark hair. It offers reliable performance, straightforward operation, and a lower initial investment, making it well suited for high-volume beauty clinics, medical spas, and distributors seeking strong cost-performance value.
The DepiMEDiX is designed for laser hair removal clinics serving patients with diverse skin tones, including Fitzpatrick I–VI, as well as those frequently treating fine or treatment-resistant hair. Its additional 940 nm wavelength, advanced cooling system, interchangeable spot sizes, and Android smart management make it ideal for premium aesthetic clinics, dermatology practices, and multi-location medical groups.
If most of your patients have fair to medium skin with coarse hair, a triple-wavelength system offers excellent clinical performance at a lower purchase cost.
If your clinic regularly treats darker skin types, stubborn residual hair, or wants advanced smart management features, investing in a 4-wavelength platform provides greater long-term versatility and broader treatment capability.
Always fill the cooling system with deionized or distilled water. This prevents mineral deposits from blocking the micro-channel cooling system and helps maintain stable laser performance.
When a low-flow alarm appears, first inspect the water filter for blockage, then check coolant tubing for kinks or compression. If necessary, verify pump voltage according to the service manual before requesting technical support.
After every treatment, clean the magnetic tip contacts with 75% isopropyl alcohol and allow them to dry completely before reinstalling. Clean contacts ensure accurate tip recognition and stable energy delivery.
For Fitzpatrick V–VI, begin treatment with:
These settings reduce epidermal heat while maintaining effective follicle destruction.
A: Not necessarily. Clinics treating mainly Fitzpatrick I–III patients with coarse, dark hair can achieve excellent outcomes using a triple-wavelength system. A 4-wavelength platform provides additional advantages for darker skin, fine hair, and treatment-resistant cases.
A: Yes. The inclusion of 1064 nm allows safe treatment of darker skin. However, without 940 nm, the system relies solely on melanin absorption and does not provide the additional vascular targeting benefit.
A: No. The 808 nm wavelength remains the primary hair-removal wavelength. The 940 nm wavelength complements it by targeting the follicular blood supply, improving results for low-pigment and resistant hair.
A: For startups with budget limitations and predominantly lighter-skinned patients, DepiMED Android generally provides a faster return on investment because of its lower purchase cost. Clinics targeting a premium market with diverse patient demographics may benefit more from DepiMEDiX, whose expanded treatment capabilities and smart features can support higher-value services over time.
Both systems deliver effective diode laser hair removal, but they serve different clinical needs. The 755 nm + 808 nm + 1064 nm triple-wavelength platform remains a dependable choice for high-volume clinics treating mainly lighter to medium skin tones. By adding 940 nm, the DepiMEDiX expands treatment versatility with improved clearance of fine and resistant hair, greater comfort for darker skin, and broader patient coverage. Combined with 1200–1600 W power, industrial cooling, interchangeable magnetic spot sizes, and an Android AI management system, it provides a premium solution for clinics seeking long-term growth. Choosing the right platform ultimately depends on your patient demographics, treatment goals, and business strategy.
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Beijing LaserTell Medical Co., Ltd. is a pioneer in the integration of advanced technologies within the field of medical aesthetics. Located in Beijing with convenient transportation access, we are committed to strict quality control, professional customer service, and innovative development.