A15。
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Apple 13mini with 5.4-inch OLED full screen, body size 146.7 mm *71.5 mm *7.65 mm, weight 173 grams, using ultra-porcelain crystal panel, glass back with aluminum metal frame.
The iPhone 13 mini is equipped with the A15 Bionic chip, which uses a 5-nanometer process and integrates 15 billion transistors.