iPhone 12 Pro Max, the rumoured top-end model in the upcoming iPhone 12 series, may be the only 2020 iPhone with faster millimeter-wave 5G (mmWave 5G), an online report claims. The iPhone 12 series is expected to come with 5G connectivity, as per multiple reports and analysts.iPhone 12 Pro Max, the rumoured top-end model in the upcoming iPhone 12 series, may be the only 2020 iPhone with faster millimeter-wave 5G (mmWave 5G), an online report claims. The iPhone 12 series is expected to come with 5G connectivity, as per multiple reports and analysts.