Apple Watch Ultra flashing Logo

Bought this watch a week ago. Last night the battery was completely dead, put it on the charger it came with with the 20watt brick. Woke up this morning to the watch blinking the Apple logo. 5 seconds logo 5 seconds off. The watch was extremely hott. I tried doing a hard reset, did not work. Who knows how long it had been doing this but after about 30 min of messing with it, the screen went blank. Will not turn on or show that it’s charging. Any help?