How much memory for vivowatch3

4GB. according to the official website of vivo can be known, vivoWATCH3 is vivo's first smartwatch with blue river operating system, released on november 13, 2023, the battery capacity typical value is 505mAh, the memory capacity is 4GB, there are windy sports function and health function, you can make a phone call, open a car door, back to the message, scan the code to pay and so on.