With a Samsung smartwatch with LTE, you can be reached anytime, anywhere. The Samsung Watch 4G has a built-in SIM card. This digital eSIM ensures you're connected to the internet, even if you don't have your smartphone with you. Here, you can find all our Samsung Watch 7 LTE and Ultra LTE smartwatches. Take out an eSIM data plan with your provides. Note: not every provider offers this, so be sure to check this with your provider.