Is the battery 78 of Apple Watch normal?

The battery 78 of Apple Watch is not normal. According to relevant public information: According to Apple's official statement, the capacity of the lithium-ion battery of AppleWatch is still 80% after completing 1000 charge and discharge cycles. Official website said that the battery can only be replaced if its maximum capacity is less than 80%, and it will prompt maintenance if it is less than 80%.