The designation "WLAN only" for this device does not mean that it has WLAN as a connection option, but that it does not support a mobile phone connection (e.g. LTE), but only communicates with the smartphone via Bluetooth. The device therefore connects exclusively via Bluetooth, not via the mobile phone network, and has no mobile phone functionality. WLAN is presumably understood here as a differentiation from mobile communications, not as an actual connection option for the smartwatch. The connection is made via Bluetooth 5.4.