Is the question still relevant?

There is no difference.

Info Samsung Galaxy Watch DE models / EU models To ensure availability of these devices from stock, we also offer DE and EU models. Good to know: Depending on the model, Samsung Pay, Bixby, WiFi calling and other minor secondary functions must be waived when using these variants.

Is the question still relevant?

It works both ways. With a mobile phone via Bluetooth, or without a mobile phone, through the LTE network, if you have the necessary subscription via esim. Swisscom is now offering multidivice esim for free for one year if you have a subscription.

Yes, it only works with wireless charging. The charger is included.

This model has LTE (4G) right :)