Apple MacBook Air (15-inch, M3, 2024)

Apple MacBook Air (15-inch, M3, 2024)
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MacBook Air (15-inch, M3, 2024)
The MacBook Air (15-inch, M3, 2024) combines a spacious 15.3-inch display with a thin, fanless design. Its M3 chip includes an 8-core CPU and 10-core GPU, providing capable performance for productivity, study, programming, photography and moderate creative work.
Its Liquid Retina display offers a 2880 × 1864 resolution, 500-nit brightness and support for the P3 wide colour gamut. The M3 model can also operate a second external display when its lid is closed, providing greater workspace flexibility than the earlier M2 MacBook Air.
When buying a used or open-box unit, confirm its unified memory and SSD capacity through macOS because configurations vary and neither component can be upgraded later. Check the battery health, display, keyboard, trackpad and both USB-C ports, and ensure that Activation Lock and organisational device management have been removed.

Quick Facts
Quick Fact | Details |
|---|---|
Model | MacBook Air (15-inch, M3, 2024) |
Year Introduced | 2024 |
Processor | Apple M3 with 8-core CPU |
Graphics | 10-core integrated GPU |
Display | 15.3-inch Liquid Retina IPS display |
Resolution | 2880 × 1864 pixels at 224 ppi |
Unified Memory | 8GB or 16GB; configurable up to 24GB |
Storage | 256GB SSD; configurable up to 2TB |
Battery Life | Up to 18 hours of movie playback |
Weight | Approximately 1.51kg |

Key Highlights
Efficient Apple M3 Performance
The M3 combines an 8-core CPU, 10-core GPU, 16-core Neural Engine and dedicated media engines in a slim, fanless notebook.
Why it matters:
Handles everyday productivity and multitasking smoothly
Supports photo editing and moderate video projects
Hardware-accelerated ray tracing benefits compatible applications
AV1 decoding supports efficient modern video playback
Fanless operation avoids cooling-fan noise
Spacious Liquid Retina Display
The 15.3-inch Liquid Retina display gives documents, timelines and side-by-side windows more room than the 13-inch MacBook Air.
Why it matters:
2880 × 1864 resolution produces sharp text and images
Larger workspace makes multitasking more comfortable
P3 wide colour supports vibrant creative content
One billion colours provide smooth tonal transitions
True Tone adjusts the display to surrounding light
Thin Design with Flexible Display Support
Despite its larger screen, the MacBook Air is only 1.15cm thick and weighs approximately 1.51kg. The M3 chip also enables a second external display when the laptop lid is closed.
Why it matters:
Easier to carry than many large-screen laptops
Fanless construction supports quiet operation
One external 6K display works with the built-in screen active
A second external display can be added with the lid closed
MagSafe charging keeps both USB-C ports available
Key Features Explained
Feature | Specification | Why It Matters |
Processor | Apple M3 with 8-core CPU | Provides responsive performance for productivity and creative applications |
Graphics | 10-core integrated GPU | Handles graphics work, media editing and compatible games |
Neural Engine | 16-core Neural Engine | Accelerates supported machine-learning and intelligent features |
Memory Bandwidth | 100GB/s | Allows the processor and GPU to access shared data efficiently |
Unified Memory | 8GB or 16GB; configurable to 24GB | Higher capacities provide more headroom for multitasking |
Storage | 256GB SSD; configurable to 512GB, 1TB or 2TB | Provides fast storage options for applications and personal files |
Display | 15.3-inch Liquid Retina IPS display | Offers a spacious workspace in a relatively portable notebook |
Resolution | 2880 × 1864 pixels at 224 ppi | Produces sharp text, images and interface elements |
Brightness and Colour | 500 nits, P3 colour and one billion colours | Supports clear visuals and colour-rich creative work |
Camera | 1080p FaceTime HD camera | Provides clear video for calls and online classes |
Audio | Six-speaker system with force-cancelling woofers | Delivers fuller sound than smaller laptop speaker systems |
Microphones | Three-microphone array with beamforming | Helps capture clearer speech during calls |
Ports | Two Thunderbolt/USB 4, MagSafe 3 and headphone jack | Supports charging, displays, storage and wired audio |
External Displays | One with the lid open; two with the lid closed | Enables more flexible desk-based workspaces |
Wireless | Wi-Fi 6E and Bluetooth 5.3 | Supports fast compatible networking and wireless accessories |
Battery | 66.5Wh; up to 18 hours of movie playback | Provides extended mobile use between charges |
Charging | 35W dual-port adapter; fast-charge capable with 70W adapter | Supports two-device charging or faster optional charging |
Size and Weight | 1.15cm thick and approximately 1.51kg | Balances a large screen with reasonable portability |
Compare Related Models
Feature | MacBook Air 15-inch M2 (2023) | MacBook Air 13-inch M3 (2024) | MacBook Air 15-inch M3 (2024) | MacBook Air 15-inch M4 (2025) |
Display Size | 15.3-inch | 13.6-inch | 15.3-inch | 15.3-inch |
Display Type | Liquid Retina IPS | Liquid Retina IPS | Liquid Retina IPS | Liquid Retina IPS |
Native Resolution | 2880 × 1864 | 2560 × 1664 | 2880 × 1864 | 2880 × 1864 |
Processor | Apple M2 | Apple M3 | Apple M3 | Apple M4 |
CPU | 8-core | 8-core | 8-core | 10-core |
GPU Options | 10-core | 8-core or 10-core | 10-core | 10-core |
Maximum Unified Memory | 24GB | 24GB | 24GB | 32GB |
Maximum SSD Capacity | 2TB | 2TB | 2TB | 2TB |
Memory Bandwidth | 100GB/s | 100GB/s | 100GB/s | 120GB/s |
Camera | 1080p FaceTime HD | 1080p FaceTime HD | 1080p FaceTime HD | 12MP Center Stage |
External Display Support | One | Up to two with lid closed | Up to two with lid closed | Up to two with built-in display active |
Wireless | Wi-Fi 6 | Wi-Fi 6E | Wi-Fi 6E | Wi-Fi 6E |
Movie or Video Playback | Up to 18 hours | Up to 18 hours | Up to 18 hours | Up to 18 hours |
Weight | Approximately 1.51kg | Approximately 1.24kg | Approximately 1.51kg | Approximately 1.51kg |
Best Advantage | Potentially lower used price | M3 performance with easier portability | Large display and balanced M3 performance | Newer chip and improved display support |
Which Model Should You Choose?
Model | Recommended For |
Buyers who want a large-screen MacBook Air at a potentially lower used price | |
Students and commuters who prioritise portability while retaining M3 performance | |
Buyers seeking a spacious screen, quiet operation and balanced everyday performance | |
Users who want higher memory capacity, a newer processor and improved multi-display support |
Common Questions
Is the MacBook Air 15-inch M3 suitable for everyday use?
Yes. Its M3 processor and large display make it well suited to browsing, office applications, video calls, streaming and general multitasking.
Is it suitable for students and video editing?
Yes. The larger screen is useful for research, documents and split-screen work, while the M3 chip can handle photography and moderate video editing. Sustained professional rendering may be better suited to a MacBook Pro.
What is the difference between the 15-inch M2 and M3 MacBook Air?
The M3 model adds newer processing and graphics architecture, hardware-accelerated ray tracing, AV1 decoding, Wi-Fi 6E and support for a second external display when the laptop lid is closed.
How many external displays can it support?
It supports one external display at up to 6K while the built-in display remains active. Closing the MacBook Air lid allows a second external display at up to 5K to be connected.
Can its memory or SSD be upgraded later?
No. The unified memory and internal SSD are not designed for post-purchase upgrades. Buyers should verify the configuration and choose sufficient capacity for their applications and files.
Is the MacBook Air 15-inch M3 still worth buying?
Yes, particularly when it is priced below the M4 version. It remains a capable large-screen notebook for productivity, study and moderate creative work, although the unit’s configuration and battery condition should be considered.
Why Buy the MacBook Air (15-inch, M3, 2024)?
The MacBook Air (15-inch, M3, 2024) offers a useful combination of screen space, portability and quiet operation. Its M3 processor provides capable everyday and creative performance, while the 15.3-inch display makes multitasking more comfortable than on smaller ultraportable laptops.
Its slim aluminium design, six-speaker audio system, long rated battery life and dual-display capability with the lid closed also make it flexible for mobile and desk-based use. Buyers should compare memory, storage, battery condition and included accessories carefully.
Compare MacBook Air (15-inch, M3, 2024) listings on SellUp Marketplace to find the condition, unified memory, storage capacity and price that suits your budget.









