The iPhone 11 Pro Max feature Intels modems with Gigabit-class LTE, 4x4 MIMO, and LAA for speeds up to 1.6Gb/s, Wi-Fi 6 support (802.11ax), Bluetooth 5.0, Dual-SIM with eSIM, and an Apple-designed U1 Ultra Wideband chip that improves spatial awareness and allows for better indoor tracking