MacBook Air 15-inch M4 Review (2025)
The MacBook Air 15-inch M4 is Apple's best everyday laptop — a 15.3" Liquid Retina display, M4 chip, 18-hour battery, and Apple Intelligence in a fanless design under half an inch thick. Currently at its lowest price in 30 days at $1,499 (6% off $1,599) during the Big Spring Sale.
- ✔ Want the best 15" laptop battery life — 18 hours
- ✔ Switching from Windows — simpler, more reliable
- ✔ Students, writers, designers, developers
- ✔ Want Apple Intelligence built in
- ✔ Need a large screen without carrying a charger
- ✖ Do sustained video editing — get MacBook Pro M4
- ✖ Play Windows games — get a gaming laptop
- ✖ Budget under $999 — get MacBook Air 13" M4
- ✖ Need more than 2 USB-C ports
- ✖ Need upgradeable RAM/storage
📊 MacBook Air 15" M4 — Full Specs
| Chip | Apple M4 — up to 10-core CPU, 10-core GPU |
| RAM | 16GB unified memory (base) / 24GB option |
| Storage | 256GB / 512GB / 1TB / 2TB SSD |
| Display | 15.3" Liquid Retina, 2880×1864, 224 ppi, 1 billion colors |
| Battery | Up to 18 hours |
| Charging | MagSafe 3 + USB-C (both ports charge) |
| Ports | 2× USB-C (Thunderbolt 4), MagSafe 3, 3.5mm headphone |
| Camera | 12MP Center Stage webcam |
| Cooling | Fanless — completely silent |
| Weight | 3.3 lbs (1.51 kg) |
| Thickness | 0.45 inches (11.5mm) |
| Colors | Midnight, Starlight, Sky Blue, Silver |
| Apple Intelligence | Yes — writing tools, image generation, Siri upgrades |
| Wi-Fi | Wi-Fi 6E |
| Price | From $999 (13") / $1,499 (15" 16GB/1TB) |
🔑 What Makes MacBook Air M4 Stand Out
M4 Chip — Meaningful Upgrade Over M3
The M4 chip brings noticeably faster CPU and GPU performance over M3 — particularly for Apple Intelligence tasks, image generation, and local AI workloads. For everyday use like browsing, Office apps, and video calls the difference is less noticeable, but M4 future-proofs the machine for longer. One verified buyer replaced a 2014 Air and describes the performance as immediately apparent. Another specifically bought M4 for running local LLMs.
18-Hour Battery — The Defining Feature
No 15-inch Windows laptop comes close to 18 hours of real-world battery life. In practice, buyers consistently report getting through a full workday without charging — 8-10 hours of mixed use. The fanless design means the battery isn't competing with a cooling system, which is a key reason Apple can achieve these numbers. Multiple buyers specifically mention not needing to carry a charger during the day.
15.3" Liquid Retina — Best Display in Class
The 15.3" Liquid Retina display supports one billion colors with 224 pixels per inch — noticeably sharper than most competing 15-inch laptops. Text is crisp, photos look accurate, and the 500-nit brightness is usable outdoors. If you're coming from a budget Windows laptop, the display quality alone justifies a large part of the price premium.
Apple Intelligence — Built In
MacBook Air M4 ships with Apple Intelligence — Apple's on-device AI system. This includes rewriting and proofreading tools in any text field, image generation (Image Playground), an upgraded Siri that can take actions across apps, and priority notification summaries. All processing happens on-device using the M4 Neural Engine — no data sent to servers for most tasks.
Fanless Design — Completely Silent
The MacBook Air has no fan — it relies entirely on passive cooling through the aluminum chassis. For the vast majority of tasks this is fine and means the laptop is always completely silent. The tradeoff is thermal throttling under sustained heavy loads — video editors who export frequently or developers who compile large codebases for hours will hit this ceiling and should consider the MacBook Pro M4 with active cooling.
⚔️ MacBook Air 15" M4 vs Competition
| Feature | MacBook Air 15" M4 | MacBook Air 13" M4 | MacBook Pro 14" M4 | Dell XPS 15 |
|---|---|---|---|---|
| Price | $1,499 | $999 | $1,599 | ~$1,499 |
| Display | 15.3" Retina | 13.6" Retina | 14.2" Retina XDR | 15.6" OLED |
| Chip | Apple M4 | Apple M4 | Apple M4 | Intel Core Ultra |
| Battery | 18 hrs | 18 hrs | 24 hrs | ~8-10 hrs |
| Cooling | Fanless | Fanless | Active fan | Active fan |
| RAM (base) | 16GB | 16GB | 16GB | 16GB |
| Weight | 3.3 lbs | 2.7 lbs | 3.5 lbs | 4.2 lbs |
| Ports | 2× USB-C + MagSafe | 2× USB-C + MagSafe | 3× USB-C + HDMI + SD | 2× USB-C + USB-A + SD |
| Best for | Everyday + large screen | Portability + value | Pro workloads | Windows power users |
💬 What Real Buyers Are Saying
⭐⭐⭐⭐⭐ “Got tired of Microsoft BS”
“Apple is simple and elegant. Help is a phone call away, especially with AppleCare+. A learning curve from the PC, but worth the effort. Impossible, at least I've found it so, to get help from Microsoft to deal with issues with their software which is often far from obvious or intuitive.” — Gerry M, verified buyer
⭐⭐⭐⭐⭐ “Super fast — amazing performance”
“Amazing performance.” — Mark A Guerra, verified buyer (16GB / 1TB / Midnight)
⭐⭐⭐⭐⭐ “Fast and barely runs hot — except for LLMs”
“Can run a bit hot when doing video editing or running local LLMs, but I expected that. For just about anything else, the laptop runs fast and barely runs hot. Came in great condition too!” — Sung Joon, verified buyer (5 people found helpful)
⭐⭐⭐⭐ “Beautiful and functional — but way overpriced”
“As with all Macs, it's beautiful and functional with good performance, lightweight, great battery life. Way overpriced relative to equivalent Intel machines and completely non-upgradable. Make sure you get at least 1TB SSD and 16GB if you plan to keep this for a few years.” — Wingspinner, verified buyer
🛒 Which Configuration Should You Buy?
| Config | Price | Best for |
|---|---|---|
| 16GB / 256GB | ~$1,299 | Light users — web, email, docs only |
| 16GB / 512GB | ~$1,299–$1,399 | Most buyers — best value |
| 16GB / 1TB | $1,499 | Power users with large file libraries |
| 24GB / 512GB+ | $1,599+ | Developers, video editors, AI workloads |
Important: RAM and storage are soldered — not upgradeable after purchase. Buy more than you think you need. 16GB is sufficient for most users in 2025 but 24GB future-proofs for 5+ years of use.
🏆 Final Verdict — Is MacBook Air 15" M4 Worth $1,499?
Yes — the best everyday 15-inch laptop available in 2025.
No competing 15-inch laptop matches the combination of 18-hour battery, fanless silent operation, and M4 performance at $1,499. For students, professionals, creatives, and anyone switching from Windows, the MacBook Air 15" M4 is the laptop to buy this year — especially at the current Big Spring Sale price which is the lowest in 30 days.
One caveat: RAM and storage are not upgradeable. If you plan to keep this laptop for 5+ years, seriously consider the 24GB RAM option even if it costs more upfront.
Choose MacBook Pro M4 instead ($1,599) if: you do sustained video exports, heavy compilation, or run demanding AI workloads for hours — the active cooling makes a real difference for those use cases.
Looking for the best laptop overall? Read our Best Laptops 2025 Guide → or compare with the Best MacBook Guide →
Frequently Asked Questions
MacBook Air M4 vs MacBook Air M3 — should I upgrade?
If you own an M3 MacBook Air in good condition, the M4 upgrade is not essential — the day-to-day performance difference for typical tasks is small. The M4 is meaningfully faster for Apple Intelligence on-device processing, neural engine tasks, and GPU-heavy work. If your M3 is working well, wait for M5. If you're buying new, always buy the current generation.
Is 16GB RAM enough for MacBook Air M4 in 2025?
Yes for most users — 16GB of Apple's unified memory performs differently than 16GB in a PC because it's shared between CPU and GPU with extremely fast bandwidth. For web browsing, Office, light creative work, and coding, 16GB handles everything well. For video editing in 4K, running multiple VMs, or heavy AI workloads, 24GB is worth the premium — especially if you plan to keep the laptop 4-5 years.
Does MacBook Air M4 support external monitors?
Yes — MacBook Air M4 supports one external display up to 6K at 60Hz via Thunderbolt 4. If you need two external displays simultaneously, you need to use a compatible dock with DisplayLink technology, or upgrade to MacBook Pro M4 which supports multiple external displays natively.
What colors does MacBook Air 15" M4 come in?
MacBook Air 15" M4 is available in four colors: Midnight (dark navy/black), Starlight (champagne gold), Sky Blue (light blue — new for M4), and Silver. Midnight shows fingerprints more than the other colors — if that bothers you, Starlight or Silver are lower-maintenance options.
Affiliate Disclosure: Top Choices Lab participates in the Amazon Associates program. When you click our links and make a purchase, we may earn a small commission at no extra cost to you. Prices accurate as of April 17, 2026.