The Vaptio SLEEK is an attractive and slim rechargeable pod with a very ergonomic shape. The drip tip is not present and not even the cartridge is visible, it is hidden under a magnetic door that blends with the design. The 1.5 ml cartridge has a 0.8 ohm ceramic coil and is powered by a 400 mAh battery that pushes it to a maximum of 13 watts. The main feature of SLEEK, which is marketed by Vaptio, is to "adapt" automatically according to the intensity of the shot, in practice, drawing strong increases the intensity of the steam produced, while vacuuming slowly the steam decreases. The small cardboard box containing the SLEEK shows the Pod at the front and an indication of the color that we will find inside it, the usual warning about nicotine and the writing Air Flow Technology. On the back side are indicated: the content, the warning about minors, Vaptio's address, various brands, various logos and the usual nicotine warning. Kit Contents: 1 x SLEEK device 1 x Cartridge 1 x USB cable Specifications: Cartridge: Refillable 1.5Ml Battery: 400 mAh Coil: 0.8Ω Power: 13 W max Color range: Gold / gun metal / blue / rainbow Weight: 66 grams Dimensions: 86.22x31.22x12.1mm Charging Current: 5V / 0.5A Low-Voltage Protection Over-Vaping Protection Short-Circuit Protection Over-Charging Protection Warranty: 90 days Colors: gold, gunmetal, blue, rainbow (more exclusive options for replaceable battery doors) The SLEEK is made of a polished zinc alloy, which makes it very smooth and subject to preserving fingerprints, the metal alloy increases the weight to about 66 grams despite only 12 mm thick and 86 mm long, of other hand in hand feels and holds really well. There are no buttons or anything to deface the SLEEK line. There is a thin opening in the front of the device that acts as a liquid control window, but it is almost useless because you cannot see through it unless you remove the battery door. Although I like the general aspect of SLEEK, there are some design choices that are not very rational. Battery door The "back shell", as Vaptio calls the battery door, is a thin, curved plate that connects to the device via two small circular magnets near the mouthpiece. The door is firmly anchored to the body. On the side there is a small side recess able to accommodate a nail to facilitate the removal of the panel. The mouthpiece is not really a mouthpiece. It's just a slightly sloping hole where you put your mouth to vaporize. The end where the USB port is housed has an almost identical design.