Sennheiser's Flagship Earbuds Deliver Lossless Audio Only to Android Users

Sennheiser's MOMENTUM True Wireless 4 earbuds, announced January 2024 at $299.95, rely on Qualcomm's S5 Sound Gen 2 platform for aptX lossless transmission—but only Android devices with Snapdragon processors unlock that capability. iPhone users fall back to standard Bluetooth codecs like AAC. This technical asymmetry, baked into chipset availability, means the feature most differentiating premium earbuds from competitors becomes platform-dependent rather than universal.