Are SSDs more susceptible to data loss from water damage than HDDs?

From no prior research, just off the top of my head, I would say that 2.5in SSD's are equivalent in liquid resistance to 2.5in HDDs. They are both protected by the metal casing but if water were to get inside, game over for both (the SSD because it would short and the HDD because it wouldn't be able to read or write data through liquid). A SSD like the Macbook Air uses is probably less resistant to liquid damage simply because there's nothing protecting it, if water makes contact it would be the same as it getting to the inside of a 2.5in SSD.

That's my hypothesis at-least...

If the board is shorted somewhere, no one can protect you. Even with mechanical HDDs. The board is replaceable so data might be recoverable. But shorted controller board may act erratically and ruin everything on the disk. Electronically I'd say they are about the same.

But mechanically HDD is nowhere near SSD. The chip packaging in the SSD are exteremely durable, even aircraft black boxes use similar design, with a tougher case obviously.

My mSATA was dunked in red wine. Sat in rice for 4 days and it works:)

Good thinking going on here, it pretty much describes and explains my Air's strange demise:

My Air wouldn't charge, new charge unit cured that. The day after buying the new charger, a glass of water was spilled on table next to the Air--the Air was sitting in a shallow puddle all around. It then quit booting, charging, or doing anything useful. Disassembled deep enough to find a little bit of water inside, along margin of the battery at the thicker end--surface tension led it in from the bottom?? Anyway, I saw no sign of water in any ports or on keyboard after spill. I let it air dry, but no change, it is inert, not even an LED on the charge plug. I guess I've got a Macbook Wick. Stillplanning to pull files off the SSD, soon as I read up on getting to the SSD. Not counting on retrieving anything from the drive, just want to see if it really drowned in a puddle.

If the SSD components are exposed like in the Macbook Airs and ESPECIALLY the A1502 retina where they put it right by the vent that the fan shoots water into; yes. I have repaired at least half a dozen A1502 SSDs(I mean take out components and fix, not pirated diskwarrior) compared to zero issues of hard drives dying from water entering a computer from older generations.

In terms of standard 2.5" form factor SSDs, I would guess equal to a regular hard drive. Toss it in water yes it will get &&^&@@ up, but doubt some contact from a laptop liquid spill will do anything, it is harder to get the water into the right spot for it to become damaged.