The iOutlet

MacBook Air 2018 vs 2020: Which Refurbished Model to Pick?

MacBook Air 2018 vs 2020: Which Refurbished Model to Pick?

By The iOutlet | Published: 2026-10-23

Category: Comparisons

Compare the refurbished MacBook Air 2018 and 2020 models. See the key differences in processor, storage, and price to decide which fits your needs.

Quick answer

Choose the refurbished MacBook Air 2020 if you need more storage and a newer design; pick the MacBook Air 2018 if you want a lower price and a slightly faster processor.

Processor and performance trade-off

The MacBook Air 2018 comes with a 1.6 GHz Core i5 processor, while the 2020 model uses a 1.1 GHz Core i3. On paper, the i5 has a higher base clock speed, which can help with burst tasks like opening apps or light photo editing. However, the 2020 model benefits from a newer architecture and improved integrated graphics, making it more efficient for everyday multitasking and video streaming.

If you regularly run single-threaded applications or prefer raw clock speed, the 2018 model may feel snappier. For general use like web browsing, email, and document editing, both are perfectly capable.

Storage and value difference

Storage is a clear differentiator. The MacBook Air 2018 has a 128GB SSD, while the 2020 model doubles that to 256GB. If you store lots of files, photos, or install many applications, the extra space on the 2020 model saves you from juggling external drives or cloud storage.

The price gap is modest: the refurbished 2018 model is around USD 140, while the 2020 model costs about USD 183. For roughly USD 43 more, you get double the storage and a newer generation device.

Condition and warranty considerations

Both models are sold as refurbished units. The 2018 model is Grade A, meaning it has minimal cosmetic wear and is in excellent condition. The 2020 model is Grade B, which may show light signs of use but remains fully functional. Both come with a 12-month warranty, a generic charger, and free tracked UK delivery.

If pristine appearance matters more than the latest model year, the Grade A 2018 MacBook Air is a strong choice. If you prefer a newer device and can accept minor cosmetic imperfections, the Grade B 2020 model offers better value per dollar.

MacBook Air 2018 vs 2020: trade-offs at a glance

  • Processor speed: 2018 has a faster base clock (1.6 GHz i5) vs 2020 (1.1 GHz i3). The 2020 chip is newer and more power-efficient for typical use.
  • Storage capacity: 2018 offers 128GB; 2020 offers 256GB. The 2020 model gives you twice the space for about USD 43 more. If you store many files or apps, the 2020 model saves you from buying an external drive.
  • Condition grade: 2018 is Grade A (near-mint); 2020 is Grade B (light wear). Both are fully functional and backed by a 12-month warranty. Choose Grade A if cosmetic perfection matters; Grade B is fine if you prioritise specs over appearance.
  • Price: 2018 starts at USD 140.79; 2020 at USD 183.59. The price difference is small relative to the storage and generation upgrade.

Product facts at a glance

Which refurbished MacBook Air fits you?

Best for

  • Budget-conscious buyers who want a fast processor for burst tasks and don't need much storage
  • Users who prioritise near-mint cosmetic condition

Not ideal for

  • Users who need more than 128GB of built-in storage
  • Those who want the latest design and slightly better efficiency for everyday use

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