Happy M4 MacBook Air week for those who celebrate! In his first edition of Power On since officially becoming Bloombergs managing editor of consumer tech, Mark Gurman reports that there are no delays in the way of Apple unveiling the 2025 model MacBook Air this week. Gurman has consistently reported that the M4 MacBook Air was slated to be unveiled as early as March. With the iPhone 16e announcement and release behind us, it appears that the focus can now shift to the Mac for the week.If the M4 MacBook Air has the same specs as the standard M4 MacBook Pro, we can expect a few upgrades over the M3 MacBook Air:10-core CPU vs 8-core CPUUp to 32GB RAM vs up to 24GB RAM120GB/s memory bandwidth vs 100GB/s memory bandwidth12MP Center Stage web camWe may also see optional an nanotexture display option for reduced glare, an hour or two of additional battery life, and hopefully a surprise or two.Then theres the question of what happens to the existing MacBook Air line. Apple upped the base RAM on both the M2 and M3 models from 8GB to 16GB last year without changing the price. My guess is that upgrading the base M2 model RAM prepared the way for the M2 MacBook Air to remain in the lineup. The M3 MacBook Air, on the other hand, can be replaced by the M4 MacBook Air.In fact, Amazon is currently selling the M3 MacBook Air for $50 less than the M2 MacBook Air, signaling that the M3 is being cleared out of the inventory.Best Apple accessoriesFollow Zac Hall on X, and listen to Runtime with co-host Sophia Tung on Apple Podcasts and YouTube.Add 9to5Mac to your Google News feed. FTC: We use income earning auto affiliate links. More.Youre reading 9to5Mac experts who break news about Apple and its surrounding ecosystem, day after day. Be sure to check out our homepage for all the latest news, and follow 9to5Mac on Twitter, Facebook, and LinkedIn to stay in the loop. Dont know where to start? Check out our exclusive stories, reviews, how-tos, and subscribe to our YouTube channel