M4 MacBook Air vs. M3 MacBook Air: Here are the biggest upgrades

  Just one day after announcing the all-new iPad Air, Apple has released an update to its accompanying Air-branded laptop. The M4 MacBook Air features the latest Apple Silicon powertrain and some other welcome additions.MacBook Air M4 Laptop Battery 18 hours (Apple claims)MacBook Air M3 Laptop Battery15 hours 13 minutes (13-inch, tested); 15 hours 2 minutes (15-inch, tested)
M4 MacBook Air vs. M3 MacBook Air: Design and DisplayBoth the 13-inch and 15-inch M4 models look identical to their M3-based predecessors, but that's not really a problem, as the MacBook Air is still one of the most beautiful laptops around. The main difference between the two laptops is the chipset that powers them. The latest Air is powered by Apple's M4 chipset, which debuted last spring with the 2024 iPad Pro, while the M3 models are powered by a slightly older (but still pretty impressive) processor.
Apple says the 10-core CPU (two more cores than the 8-core M3) is twice as fast as the M1 MacBook Air, but the difference between the M4 and M3 won't be that big. There are smaller upgrades to the camera. The M3 MacBook Air had a 1080p camera, while the new model has a 12-megapixel sensor and adds Center Stage technology.
M4 MacBook Air Battery vs. M3 MacBook Air Battery Life
Apple didn't reveal the MacBook Air M4 Laptop Battery  capacity of the MacBook Air M4 laptop, so we'll have to wait for the first M4 MacBook Air teardowns to know the exact number, but the company says both sizes will last up to 18 hours on a single charge.
That's the same as Apple promised for the M3 models, so don't expect much to change on that front despite the improved efficiency of the M4 chipset.
M4 MacBook Air vs. M3 MacBook Air: ComparisonThe M4 MacBook Air looks to be another premium laptop from Apple, with a host of substantial improvements. The speed of the M4 chipset, the addition of the Center Stage, and the ability to use three screens simultaneously are all extremely welcome — though not as welcome as the $100 price cut.
While it may not be worth it for users upgrading from last year's model, owners of the M2 MacBook Air or earlier will be very tempted.

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