i think there are no sects
The most important difference is that Hinduism is polytheistic.
To differentiate the different sects.
There has virtually never been a time in Jewish history where there were no differing sects of Judaism. Sects come about as the result of different interpretations of the Torah and Talmud.
Israel
Jerusalem
Rabbis and cantors
There are no formal sects in Confucianism.
jainism
The is no such thing as a "judaism".
Of course not.
There is many Sects in Islam, there is also diffrent types of Sunnis with different beliefs, sub sects within.