According to Youdao's official flagship store, Youdao dictionary pen is mainly used to scan English words and sentences, and the contents stored in its database are only English words and related contents, while math problems, as science subjects, cannot be scanned with dictionary pen. Moreover, Youdao Dictionary Pen 3 introduces the function of "ultra-fast search" to upgrade the efficiency of word search again; At the same time, the function of "interactive reading" for young children is introduced to realize the visual interaction of picture book reading.

Netease Youdao dictionary pen is Netease Youdao polished learning intelligent hardware, embedded with industry-leading AI technologies such as neural network translation and optical character recognition independently developed by Netease Youdao, and it is one of the excellent products in the field of learning.