The myPhone CareWatch LTE smartwatch is based on the Unisoc W307 chip and the RTOS platform. This comparison is used in the latest 4G phones. The devices have undergone verification in accordance with the requirements of Polish operators and have a fully configured VOLTE service, which is crucial when the 3G network is switched off. 4G-based voice calls provide the best coverage and the highest call quality and the longest operating perspective. What is VOLTE: Out of concern for your loved ones