MacBook Air 15-inch M4 (2025): Refurbished, Specs & Repairs
The big-screen MacBook Air with M4 and Sky Blue
The MacBook Air 15-inch M4 (2025) pairs a 15.3-inch Liquid Retina display with Apple’s M4 chip in a silent, fanless laptop just 1.15cm thick. It was the first MacBook Air with 16GB of memory as standard, a 12MP Center Stage camera and the new Sky Blue colour.
It suits study, office work, photo editing and everyday use, and runs current macOS. Many examples are still in excellent condition, and some are still covered by AppleCare.
Every refurbished Apple silicon MacBook Air we sell is checked by our technicians and comes with a 24-month warranty. Browse our refurbished MacBook Air range, or book a repair if you already own one.
About This Model
The MacBook Air 15-inch M4 (2025) was announced on 5 March 2025 and went on sale on 12 March 2025, with UK prices starting at £1,199. It was replaced by the 15-inch M5 model in March 2026.
Complete Mac Solutions supplies refurbished Apple Macs in Bristol for home users, students and businesses across the UK. We also offer MacBook repairs, including damage that Apple’s warranty does not cover.
Which MacBook Air does this cover?
This guide covers the MacBook Air (15-inch, M4, 2025). Choose About This Mac from the Apple menu: the chip will be shown as Apple M4 and the model name will say 15-inch.
It looks almost identical to the 15-inch M2 (2023), M3 (2024) and M5 (2026) MacBook Airs, so check the chip name rather than relying on the design. Sky Blue was new for the M4 generation.
Specifications at a glance
| Display | 15.3-inch Liquid Retina display, 2880 × 1864 resolution, 500 nits |
|---|---|
| Chip | Apple M4 with 10-core CPU and 10-core GPU |
| Memory | 16GB as standard; configurable to 24GB or 32GB |
| Storage | 256GB as standard; configurable up to 2TB |
| Connections | Two Thunderbolt 4 (USB-C) ports, MagSafe 3 and headphone socket; up to two external displays |
| Camera and sound | 12MP Center Stage camera; six-speaker sound system |
| Battery | 66.5Wh; up to 18 hours of video streaming, by Apple’s test |
| Colours | Sky Blue, Silver, Starlight and Midnight |
| Size and weight | 1.15cm thick, 34.04cm wide, 23.76cm deep; approximately 1.51kg |
Ask us to confirm the exact configuration of any refurbished machine available, including the memory and storage.
What is it useful for?
Documents, spreadsheets, email, browsing, video calls, photo editing, music production and light video editing all run smoothly. The larger screen makes it much easier to work with two windows side by side, and it can drive two external displays while still using its own screen.
With no fan, the MacBook Air makes no noise at all. The trade-off is that during long, heavy jobs such as big video exports, it slows itself down to stay cool. If that is your main work, a MacBook Pro is a better fit.
Is the 15-inch size right for you?
The 15-inch Air is about 270g heavier than the 13-inch model and needs a slightly larger bag, but it still fits comfortably in most backpacks. It also has a bigger battery and better speakers.
If you carry your laptop all day or work in small spaces such as trains and lecture theatres, the 13-inch MacBook Air M4 may suit you better.
A MacBook for Bristol students
Light, quiet and with all-day battery life, this MacBook Air is an excellent laptop for lectures, libraries and long days on campus. It will run current macOS and course software for years, which makes it a sensible main laptop for a full degree.
Check whether your course needs specialist software, and choose enough memory and storage at the start. Students get 10% off with our student deals.
MacBooks for businesses
Complete Mac Solutions supplies Macs for businesses as well as individuals. Tell us which applications, peripherals and working arrangements your team uses so we can help you choose a suitable machine.
The 15-inch M4 Air suits staff who spend all day in spreadsheets, documents and video calls but still want a light, quiet laptop. Its ability to run two external displays makes it a good fit for a hot-desk set-up.
macOS compatibility
As an Apple silicon Mac, this model runs the current version of macOS and should continue to receive macOS updates for years, unlike Intel MacBook Air models.
Some older Intel-only applications and plug-ins may not run. Check that the software you depend on supports current macOS and Apple silicon before you buy.
Memory and storage choices
The memory is built into the chip and cannot be upgraded later, and the same is true of the storage. 16GB suits most people; choose 24GB or 32GB if you keep many apps open or work with large photo libraries. The 256GB starting storage fills quickly, so 512GB is worth considering.
MagSafe 3 frees up both Thunderbolt ports, and either port can also charge the laptop. External drives are a practical way to add space later, so plan for your files when choosing storage.
Faults and MacBook Air repairs in Bristol
Check Apple’s warranty or AppleCare first for faults that develop under normal use. For damage those do not cover, we can help.
Screen damage
Cracks, lines, black areas or patches of colour usually mean the display assembly needs replacing. Avoid closing the lid on earbuds, pens or other small items.
Liquid damage
Spills can reach the keyboard, trackpad and logic board. Turn the Mac off, unplug it and bring it in as soon as possible.
Charging and battery
If the Mac stops charging, try both MagSafe and USB-C, a different cable and a known-good adapter to narrow down the fault. A battery that drains quickly or a case that no longer sits flat deserves prompt assessment.
Complete Mac Solutions can discuss MacBook Air repairs in Bristol, or you can send your Mac to us by post from anywhere in the UK.
Buying a refurbished MacBook Air 15-inch M4 (2025)
Make sure the Mac has been removed from the previous owner’s Apple Account and Find My. Confirm the chip, GPU core count, memory and storage, check whether any AppleCare remains, and check the battery condition. Compare the price with the M3 or M2 15-inch models, which may suit you just as well for less.
Complete Mac Solutions carries a large stock of refurbished Macs and has an extensive supplier network to help source suitable configurations. Many of our Macs come fully boxed, with all accessories and in fantastic condition. Packaging, accessories and condition vary between machines, so ask us to confirm what comes with the one you choose.
Explore our Apple Macs for sale or speak to us about a laptop for home, study or business. If you already own this model, we can help with repairs and data recovery.
References and further reading
Compare the MacBook Air 15-inch M4 (2025) with similar models
The 15-inch M5 model is the direct successor with 512GB storage as standard. The 15-inch M2 Air costs less, and the 13-inch M4 has the same chip in a lighter case.
- MacBook Air 15-inch M5 (2026)
- MacBook Air 13-inch M4 (2025)
- MacBook Air 15-inch M2 (2023)
- MacBook Pro 14-inch M4 (2024)
Buy or repair a MacBook Air 15-inch M4 (2025)
Looking for a big-screen MacBook that stays light and silent? Ask about our current MacBook Air stock, or let us diagnose and quote for a repair on the one you already own.
Image credit
Wikimedia Commons source · CC0. Resized and compressed to WebP.
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