A:Answer Hey Many! It's great to hear from you! We see that you reached out to inquire about the Galaxy Watch6 Classic. Samsung offers a range of smartwatches, including models that are compatible with both Bluetooth and LTE. The LTE models are particularly notable because they allow users to receive calls and messages without having to be connected to a smartphone. However, to use the LTE service, you will need to activate a plan with your mobile carrier, either AT&T, T-Mobile, or Verizon, that matches the plan you have for your phone. If you have any other questions, please be sure to reach out to us at Support. -Kelvin