The [Targum Yonason][4] on Shmuel 9:9 seems to equate the term Chozeh with Roeh.
Based on that understanding, the [Malbim][1] on [Shmuel 9:9][2] eloquently explains the difference between a Navi and a Roeh as such (See full text there):
(Source provided from [Sefaria.org][3])
אומר כי יש הבדל בין הנביא בדור אחרון ובין הרואה לפנים, שהנביא נקרא שמו על שם דברותיו ותוכחותיו (מלשון ניב שפתים) על כי ה' דבר בו וישלחהו להגיד לעם פשעם ולבית יעקב חטאתם, ולא שלחהו במלאכות ה' רק לצורך עניני הכלל והגוי כולו ולא חל רוח הקודש עליו להראותו דברים פרטיים הנוגעים אל היחידים, אבל הרואה נקרא בשמו על שם שהיה צופה ברוח הקודש השורה עליו כל הדברים ההויים והעתידים וגם עניני היחידים ופרטיהם, ועל כן היו בורחים מן הנביא אשר היה תמיד מגיד פשע ומוכיח עלי עון, ורדפום אחר הרואה באשר כל אחד השיג ממנו מבוקשו על הגניבה ועל האבידה ועל החולה ועל האשה והבנים, והיו נותנים לו תשורה ומתן בעבור שהתבודד לעיין על עניניהם,
(The verse is) saying that there is a difference between a Navi in the later generation and the Roeh of old, for the Navi is called a "Navi" because of his words and rebukes (from the term "uttering of the lips) for G-d spoke to him and sent him to tell the people their sins and the house of Jacob what they were guilty of, and was not sent with the the work of G-d, rather for the needs of the general population and the nation as a whole. Ruach HaKodesh did not rest upon (the Navi) to show him specific matters pertaining to individuals. However a "Roeh" is called such because he would see with Ruach HaKodesh and matters of the future as well as matters of individuals and their details would rest on him. Therefore (the people) would run from the Navi who would always tell them of their sin and rebuke their transgression, and pursue the Roeh in that everyone would inquire of his and ask regarding their stolen and lost items, about their maladies and about their wives and children and would give a offering and gift because of because he (the Roeh) would set himself to look into these matters
Hope this is helpful [1]:https://en.wikipedia.org/wiki/Malbim [2]:http://www.sefaria.org/I_Samuel.9.9?lang=bi&with=Malbim&lang2=en [3]:http://www.sefaria.org [4]: http://www.sefaria.org/I_Samuel.9.9?lang=bi&p2=Targum_Jonathan_on_I_Samuel.9.9&lang2=en