I recently dropped my note 20 ultra into the ocean, but was able to get it back a few hours later. It seems to still be in perfect condition but should I be worried about anything that would cause a reduced lifespan or any less apperant problems.
Luckily these new models are becoming more and more water resistant and I would even consider them waterproof due to their make, durability and overall compactness. Your phone should be fine. However, what you can do to be on a safe side is transfer or back up your data. Lifespan of your phone shouldn't be reduced, and neither should be your battery(this is going to depend entirely on the condition you are keeping the phone after dropping it in the ocean. Check both speakers and make sure there is no water inside that could damage other parts. Put it into a bowl full of dry rice multiple times a day on 20-minute intervals. After all, good luck!
I wouldn't worry about it. What's done is done and you can't undo the fact that it was in the ocean. I would back it up and ensure that it is backed up periodically. Then I wouldn't worry about it and just enjoy the device.
@SuperControler I am happy to hear your phone survived and is in good working condition! Here is a little more information regarding the dust and water-resistant rating for your phone and some things you can do if the phone gets wet in the future.
I also suggest taking @LongHiker advice and backing up the phone periodically to ensure there is no data loss.
