Apple watch not able to update

I’ve been trying to update my Apple Watch Series 4 for a while and per usual it will only update if it atleast 50% charged, w/in Wi-fi range and it said that it would automatically update when it is 50% and above. And surely enough it doesn’t. And when I manually do it, it keeps telling me that my Apple Watch needs to be atleast 50% charged when it’s fully charged!