1, hair extension technology: Nano hair extension technology is more advanced and needs professional training and technical guidance to complete, while feather hair extension technology is relatively simple, and there will be some visible fields or gullies, which is not as natural as nano hair extension.

2. Durability of hair extension: Nano-hair extension can last for a long time, even months, while some feathers of feather extension will fall off or loosen, which needs regular maintenance and replacement.