Question: what is the difference between apple watch series 3 with cellular?
Answer: The only difference is that the Watch 3 Cellular offers 4G LTE, UMTS via eSIM along with Wi-Fi (802.11b/g/n 2.4GHz) and Bluetooth 4.2 in the connectivity department. On the other hand, there is only Wi-Fi (802.11b/g/n 2.4GHz) and Bluetooth 4.2 connectivity in the more affordable Apple Watch 3 GPS.