It's no secret that Apple sells the entry-level MacBook Air at a lower price, knowing that the hardware specifications on these machines are not optimal for advanced users or those looking to run more resource-intensive applications, such as video and photo editors.
For example, the entry-level MacBook Air comes with just 256 GB of storage, of which around 120 GB is used by macOS and preinstalled applications, leaving you with only 140 GB of free space. If you are a video editor, an hour of 4K video typically requires around 20-30 GB of storage, and editing that video can require twice that amount to handle the task—quickly consuming half of the available space on your internal SSD.
If you are a wedding photographer, you can come back home with 1,000 photos from a single event. To store 1,000 photos, each 40 MB in size, you'll need approximately 40 GB of storage space. Editing these images can easily require at least 25 GB of free space. If you shoot two events in one week, you’ll quickly run out of storage. And if you're capturing both photos and videos at a single event, you'll run out of space even faster.
Basic Math.
Buying the MacBook Air M4 with 512 GB of storage will cost you $200 more. If you choose the 1-terabyte option, which I believe is the optimal SSD size, it will cost you $400 more! But what if I told you that you could get 1 terabyte for a little over $100 without sacrificing performance?
The solution is to use external SSD storage—specifically, a Thunderbolt 4 external SSD. This will maintain read and write performance nearly identical to working from the internal SSD. One caveat with this solution is that a 1-terabyte Thunderbolt external SSD will cost you around $130 to $150, which is a savings of around 70% compared to upgrading the internal SSD.
An alternative to this solution is to buy an enclosure like this one and a Crucial P310 1TB 2280 PCIe Gen4 3D NAND NVMe M.2 SSD. You don’t even need a tool to put these two together, and you'll pay less than the average external SSD. The advantage is that if you need more space in the future, you can simply buy a higher-capacity SSD card.
Here is a video showing how to install the SSD card and how this solution works.