The new LPDDR5 memory modules will be featured in next year's handhelds like the Galaxy S10, which will also bring support for 5G connections and improved AI applications. Samsung claims that the new chips are 50% faster and need 30% less power compared to current LPDDR4 chips. Mass production for LPDDR5 chips should begin at some point in Q3 this year.
https://www.notebookcheck.net/Samsung-s-first-LPDDR5-DRAM-memory-chips-revealed.316590.0.html
Good news for phones but when is LPDDR4 coming for laptops? It's been a few stagnant years.