It's a refresh of the last gen model. Technically, the 14" Motile M142 was the "rebrand" (OEM) of the TongFang (ODM) PF4PU1F (P for Picasso) and the new one is the TongFang PF4NU1F (N for Renoir). It's been available for about a month now in China as the Mechrevo S2 Air (you can find it on JD.com or see mostly Chinese reviews on YouTube) and is also on sale in Korea by Hansung/Monsterlabs.
It's using the exact same chassis, but as you mentioned this generation is a significant internal improvement - not just dual-channel RAM, but also significantly upgraded TDP (54W vs 22W) with new dual-fan, dual-heat pipe cooling, plus USB-C PD.
The 15" refresh the PF5NU1G was also launched at the same time initially as the Mechrevo Code 01. I've posted earlier in this thread linking to all the details about it for those that are interested, since I have one.
It's using the exact same chassis, but as you mentioned this generation is a significant internal improvement - not just dual-channel RAM, but also significantly upgraded TDP (54W vs 22W) with new dual-fan, dual-heat pipe cooling, plus USB-C PD.
The 15" refresh the PF5NU1G was also launched at the same time initially as the Mechrevo Code 01. I've posted earlier in this thread linking to all the details about it for those that are interested, since I have one.