It's great to hear from you! We noticed your interest in the Galaxy Watch7. Samsung's range of smartwatches includes both Bluetooth and LTE-compatible models, providing users with a versatile wearable tech experience. The LTE models are distinctive because they allow users to receive calls and messages without needing to be connected to a smartphone. However, activating the LTE service requires a plan from your mobile carrier. This is a Bluetooth watch, so you would need a phone to use it. If you have any other questions, please feel free to reach out to us at Support. -Kelvin