MacBook Air M4 vs M5: Which to Buy Refurbished?

For most buyers in 2026, the refurbished MacBook Air M4 is the smarter purchase. It starts around $768 refurbished, roughly $260 below the cheapest refurbished M5, and shares the same chassis, Liquid Retina display, battery, and 1080p camera as the newer model. The M5 is the right call only if you lean on its faster GPU, local AI work, the doubled 512GB base storage, or Wi-Fi 7. The two laptops are closer than the generation gap suggests.

Quick Verdict: M4 or M5 Refurbished

Buy the refurbished M4 if you want the best value. The M5 delivers about 12 percent more single-core and 15 percent more multi-core CPU speed, but you will not feel that in email, browsing, documents, or video calls. The M4's price advantage is the bigger story for everyday use.

Pay the premium for the refurbished M5 if you do sustained creative or AI work. Apple rates the M5 GPU up to 45 percent faster than the M4, with over four times the peak GPU compute for AI workloads. The M5 also ships with 512GB of storage as standard, double the M4's 256GB base, plus Wi-Fi 7 and a faster SSD.

Everything that defines how a MacBook Air feels stays the same across both. Same weight, same display, same all-day battery, same fanless silence. You can compare live refurbished MacBook Air prices on RefurbMe to see exactly how wide the M4-to-M5 gap is on any given day.

MacBook Air M4 vs M5: Spec Comparison

The two generations share a 10-core CPU, the same 16GB base memory, and an identical 16-core Neural Engine. The real changes sit in memory bandwidth, storage, wireless, and graphics throughput.

Sources: MacBook Air (13-inch, M4, 2025) Tech Specs, MacBook Air (13-inch, M5, 2026) Tech Specs.

Two deltas matter most. The M5 doubles the base storage, so its $1,099 list price buys a 512GB machine against the M4's 256GB. And the M5 moves to a faster PCIe 4.0 SSD measured at roughly 7 GB/s read, more than double the M4's tested speed, which shows up when copying large video files or loading big projects.

Real-World Performance: How Much Faster Is the M5?

In Geekbench 6, the M5 Air scores roughly 4,150 single-core and 17,000 multi-core, against approximately 3,700 and 14,800 for the M4. That is about 12 percent faster single-core and 15 percent faster multi-core, in line with Apple's claim of up to 15 percent faster multithreaded CPU performance.

The graphics gap is wider. Apple rates the M5 GPU up to 45 percent faster than the M4, with over four times the peak GPU compute for AI workloads. If you run local language models, generate images on device, or push Final Cut and Blender, the M5 pulls ahead in a way you can measure.

For everyday work, that gap disappears. Browsing, office documents, photo edits, and video calls feel identical on both chips. Neither Air has a fan, so under long sustained loads both throttle and the real-world difference narrows further. The M5 is the faster chip on paper and in short bursts; the M4 keeps pace for the work most people actually do. The same pattern held in the previous generation, covered in our MacBook Air M3 vs M4 comparison.

What Is Identical Between the M4 and M5 Air

This is where the upgrade math tilts toward the M4. The M5 changed the chip and a few components around it, but the laptop you hold is the same one.

Both share the same aluminum chassis and weight: 2.7 pounds for the 13-inch, 3.3 pounds for the 15-inch. You cannot tell them apart by looking. Both use the same Liquid Retina display: 13.6 or 15.3 inches, 500 nits, 60Hz, P3 wide color, True Tone. Neither offers ProMotion or a brighter panel.

Battery is unchanged too. Both carry the same 53.8Wh cell and the same Apple rating of up to 18 hours of video playback and 15 hours of wireless web. Independent testing found the M5 runs marginally shorter only at maximum brightness, and slightly longer at normal brightness, so the difference is a wash in daily use. The 1080p FaceTime camera, MagSafe 3 charging, two Thunderbolt 4 ports, and the headphone jack are all carried over without change.

The Refurbished Price Gap in 2026

The M5 launch in March 2026 pushed the M4 deeper into the refurbished channel, and that is exactly where its value now lives. The M4 sells well below both its own list price and the refurbished M5.

Here is what current refurbished pricing looks like on RefurbMe, based on live listings:

The cheapest refurbished M4 lands roughly $260 below the cheapest refurbished M5. Compare like for like at 512GB and the gap holds at about $200. For that money you give up the M5's faster GPU, Wi-Fi 7, and quicker SSD, and you keep the same screen, battery, and build.

The standout value is the 13-inch M4 at 16GB. Full Apple Silicon performance, enough memory for comfortable on-device AI, and a price that undercuts the M5 by hundreds. Compare all current refurbished MacBook Air prices to see the live spread across sellers.

MacBook Air 11.6"

128GB SSD
1.6Ghz Intel Dual-Core i5 5th gen
4GB memory • Silver
2015 release

Good condition, by Mac of All Trades

$120

new $899 -87%

View deal

MacBook Air 13.3"

256GB SSD
1.6Ghz Intel Dual-Core i5 8th gen
8GB memory • Silver
with Touch Id • 2018 release

Good condition, by Mac of All Trades

$179

new $1,399 -87%

View deal

+1 deals

MacBook Air 13.3"

256GB SSD
1.8Ghz Intel Dual-Core i5 5th gen
8GB memory • Silver
2017 release

Fair condition, by plug

$219

new $1,199 -82%

View deals

Compare all Refurbished MacBook Air

Who Should Buy the Refurbished M4

The refurbished M4 fits a wider range of buyers than its older-generation label suggests.

Budget-conscious buyers. At around $768 refurbished, the M4 delivers nearly all of the M5's capability for hundreds less. The CPU gap is invisible for most tasks.

Everyday users. Email, browsing, documents, streaming, and video calls run identically on both chips. Paying the M5 premium for these jobs buys you nothing you will notice.

Students. The MacBook Air is one of the best laptops for coursework, and the refurbished M4 is the most affordable path into current Apple Silicon. See our guide on whether MacBooks are worth it for the long view.

Anyone unsure refurbished is safe. A certified refurbished M4 carries a warranty and tested condition grade. Our breakdown of whether refurbished MacBooks are worth it covers what to check before you buy.

Who Should Pay More for the M5

The M5 earns its premium for a narrower set of needs.

Creative and AI workloads. If you render video, run local AI models, or lean on the GPU daily, the M5's up-to-45-percent-faster graphics and 4x AI compute are real gains you can feel.

Storage-heavy users. The M5 starts at 512GB and scales to 4TB. If 256GB feels tight and you want headroom without paying for an upgrade tier, the M5 base configuration solves it.

Fast networks and future-proofing. Wi-Fi 7, Bluetooth 6, Thread, and a quicker SSD give the M5 a slightly longer runway. If you plan to keep the laptop six or more years, that headroom matters.

Where to Buy a Refurbished MacBook Air Safely

Buy from sellers that test, grade, and warranty their stock. Back Market carries the deepest MacBook Air inventory and the most consistent pricing across both generations, which is why it leads most live comparisons. Gazelle is a strong second option in the US, with tight condition grading and a 30-day return window. Apple Certified Refurbished costs more but ships with a one-year warranty, a new battery, and a new outer shell.

Compare grades, warranty terms, and prices side by side rather than buying on the first listing you find. For a ranked look at sellers and what each offers, see our guide to the best refurbished MacBooks. RefurbMe aggregates live pricing across every major seller so you can compare refurbished MacBook deals in one place.

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