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Comparison Rowenta Formula 1 TN944M vs Rowenta Style Selectium TN-9440

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Rowenta Formula 1 TN944M
Rowenta Style Selectium TN-9440
Rowenta Formula 1 TN944MRowenta Style Selectium TN-9440
Outdated ProductOutdated Product
TOP sellers
Main functionmultifunctional clippermultifunctional clipper
In box
Nozzles
clipper blade
goatee trimmer
ear and nose trimmer
foil shaver
body shaver
universal comb /3/
clipper blade
goatee trimmer
ear and nose trimmer
foil shaver
body shaver
universal comb /3/
Specs
Haircut length0.5 – 17 mm0.5 – 17 mm
Blade width32 mm32 mm
Number of revolutions of the motor6500 rpm6500 rpm
Blades material/coatingtitanium
stainless steel /titanium/
Features
self-sharpening blades
wet cleaning
waterproof body
self-sharpening blades
wet cleaning
waterproof body
Power source
Power supplybuilt-in batterybuilt-in battery
Battery typeLi-IonLi-Ion
Operating time120 min120 min
Charging time1.5 h1.5 h
Charge level indicator
USB chargingUSB AUSB A
Mains 110 / 230 V
General
Additionally included
case
case
Materialplasticplastic
Color
Added to E-Catalognovember 2021april 2021

Blades material/coating

Stainless steel. The standout feature of stainless steel is its exceptional resistance to rusting. When the clipper or trimmer boasts a sealed casing, the stainless steel cutting head can be conveniently cleaned using water pressure. While stainless steel is common in lower-tier devices and its blades can endure high temperatures, they tend to lose sharpness relatively swiftly.

Titanium. Titanium alloys showcase impressive durability against substantial mechanical strain. The titanium cutting edge adeptly manages hair of various thicknesses and densities, retaining its sharpness admirably. Tools equipped with a titanium blade are reliable for frequent usage, notably in beauty salons. However, the drawback lies in their notably steep expense.

Ceramic. Ceramic offers remarkable strength; its blades remain cool and sharp over time. Machines or trimmers featuring ceramic blades effortlessly handle even the thickest hair, allowing for frequent and prolonged use. Interestingly, models with ceramic blades often come at a more affordable price compared to those with titanium blades. Nonetheless, fragility is a significant drawback of ceramics; these blades are susceptible to damage from impacts and falls. Clippers and trimmers that are equipped with a ceramic cutting part must be handled with extreme delicacy.

Titanium ceramics.... Blades made of ceramic with a high titanium content. Ceramic in the context of the material used improves cutting performance, reduces friction and maintains a sharpness for a long time, and the titanium coating gives the blades strength, provides resistance to wear and corrosion. Titanium-ceramic blades are good for cutting coarse, thick hair, but they are quite expensive.

Diamond. Diamond-coated blades have increased edge strength. Typically, these blades are based on steel, most often stainless, but thanks to diamond coating, the knife acquires higher reliability and durability. Of course, the presence of diamond coating on the blade significantly increases the cost of the device.

Steel. Steel blades are the budget-friendly option. Steel performs effectively in devices used sporadically, mainly for home purposes. Although steel edges tend to lose sharpness relatively swiftly, their durability can be enhanced through the application of protective coatings like diamond, ceramic, or titanium. Clippers or trimmers with uncoated steel blades typically fall into the low-cost category.

— Graphite. Graphite coating is typical for stainless steel blades, it allows the blade to glide more easily through hair and skin and generally increases the efficiency and convenience of working with such a device. Most often, detachable trimmer blades are equipped with graphite coating.
Rowenta Formula 1 TN944M often compared
Rowenta Style Selectium TN-9440 often compared