CAMM wasn't what you think, but some laptops do have replaceable memory modules.

No, there are no laptops with soldered RAM that you can upgrade — that’s an oxymoron. But the question gets at something real: modules like CAMM (Compression Attached Memory Module) and its newer LPCAMM2 are designed to be user-replaceable without soldering. They sit in a socket, so you can swap them out later.

The catch is adoption. Dell has been the main company pushing CAMM in their Precision and Latitude lines (e.g., Precision 7770, 7670, some recent Latitudes). A few other manufacturers have shown interest in LPCAMM2, but as of 2024 it’s still niche. Most laptops still either use socketed SODIMMs (good) or soldered RAM (bad).

So if upgradability is your priority, you’re better off looking for traditional SODIMM slots — they’re far more common and proven. CAMM is neat but not yet mainstream.

For now, SODIMM is the safe bet. CAMM is the future that’s taking its time arriving.