Hacham Svi Didi was born to Bruria and Binyamin on 22 Av, 5689 (1929) in Djerba, Tunisia. He began his Torah studies with his father, Hacham Binyamin Mekiketz Didi, and Hacham Mordecai Sigron.
Hacham Svi Didi married Camissa, and the couple had sons and daughters born to them. Their son, Hacham Shlomo Didi, currently officiates as a rabbi in the Jordan Valley Regional Council.
In 1949, Hacham Svi Didi immigrated to Israel with his family and settled in Tiberias, where he taught at the Or Torah yeshiva adjacent to Maimonides' tomb.
Hacham Svi Didi was known for his great humility, and gave a daily class in ethics and Halakha at the Yad Binyamin synagogue, named after his father. Every Sabbath he would serve as the cantor and preacher of the Magen David synagogue, located on the crest of a mountain, notwithstanding the strenuous effort required of him and regardless of the weather conditions.
Hacham Svi Didi passed away after a prolonged illness on 2 Tammuz, 5740 (1980). He is the author of Eretz Svi, a book of responsa and original commentary on Torah and Talmud.