C1X Modem

Apple C1X modem performance analysis chart showing iPhone Air vs iPhone 17 Pro Max

Apple C1X Modem Matches Qualcomm in Downloads, Trails in Upload Speeds

Ookla’s Q4 2025 Speedtest Intelligence data shows Apple’s C1X modem matches Qualcomm’s X80 in downloads and latency, while trailing by up to 32% in upload speeds.

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