Apple Watch 7. US or EU
Hi, I live in US both is often in Europe. Does it make a difference if I buy a Watch in US and use it in Europe or if i buy one in Europe and use it in US ?. Best. Michael
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Each Apple Watch model is equipped with the hardware that is needed to use the Apple Watch in the country where it has been sold, especially if it comes to the use of LTE.
If you spend more time in the US, choose the US model.
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Cellular service support.
To cover the LTE and UMTS bands used around the world, there are two separate cellular models for Apple Watch Series 7 and Apple Watch SE. They have been optimized for use in the country of purchase, and not all models work in all countries or regions. There is no single model that supports cellular service worldwide. To see which carriers in your country or region offer cellular service for Apple Watch, refer to the chart below.
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copied from: Apple Watch - Carriers - Apple