Segway vs Segway Human Transporter

Segway and Segway Human Transporter both are nouns.

Word	Noun	Adjective	Verb	Adverb
Segway	Yes	No	No	No
Segway Human Transporter	Yes	No	No	No

As nouns, Segway and Segway Human Transporter are synonyms defined as:

Segway and Segway Human Transporter: (trademark) a self-balancing personal transportation device with two wheels; can operate in any level pedestrian environment

Other synonyms of Segway include Segway HT.

Segway (noun)	Segway Human Transporter (noun)
(trademark) a self-balancing personal transportation device with two wheels; can operate in any level pedestrian environment	(trademark) a self-balancing personal transportation device with two wheels; can operate in any level pedestrian environment