Yes — "his" is a Dolch 1st Grade sight word. It follows regular phonics rules, but it's taught for instant, automatic recognition because it appears so often in early reading.
That is his backpack.
"His" is regular in spelling, though the final "s" makes a "z" sound rather than a hissing "s" — a small quirk shared with words like "is" and "as". As a common pronoun, it's taught for instant recognition.
Notice that the "s" at the end of "his" sounds like "z" — the same pattern as in "is" and "has".
Word Wizard teaches "his" with Flash Cards, Listen & Pick, Spell It, and Write It — four game modes that turn repetition into play.
See "his" with its picture, syllables, and example sentence — with native audio.
Hear "his" spoken aloud and pick it out from similar-looking words.
Build "his" letter by letter from shuffled tiles.
Word Wizard turns sight word practice into a game — Flash Cards, Listen & Pick, Spell It and Write It, from Pre-K through Grade 5.