Nano brows and microblading are two popular methods for enhancing the appearance of the eyebrows, but they differ in their techniques and results.

Microblading is a semi-permanent tattooing technique where a small handheld tool made of several tiny needles is used to add semi-permanent pigment to the skin. It creates hair-like strokes to mimic natural hairs in your brows. The results can last up to 18 months, depending on skin type and care.

On the other hand, nano brows, also known as nano needling or digital microblading, use a digital machine that allows the artist to implant pigment into the skin using a needle that's even thinner than the ones used in microblading. This method is less invasive and causes less trauma to the skin, which can lead to a more comfortable experience and faster healing time. The results of nano brows can last up to three years, again depending on skin type and care.

In terms of precision, nano brows offer a more exact application due to the single needle used, which can create ultra-fine, crisp, and natural-looking hair strokes. This is particularly beneficial for those with oily or sensitive skin, as the technique is less likely to cause pigment migration (where the pigment spreads under the skin, causing a blurred effect).

However, whether nano brows are "better" than microblading largely depends on individual preferences, skin type, pain tolerance, and desired look. It's always recommended to consult with a professional to discuss which method is most suitable for you.