The Device Memory API is a tool built into modern browsers that lets websites know roughly how much memory (RAM) your device has.
Websites can use this information to adjust how they work for your device. For example, if you are on a phone with very little memory, a site might choose to load a lighter version so it runs more smoothly. On a powerful computer, it might show more features or higher-quality content.
The number is not exact. Browsers only give an approximate, rounded value (like 2 GB, 4 GB, 8 GB) instead of the full precise number. They also restrict the range of values. This is done on purpose to protect your privacy and reduce the risk of fingerprinting (a tracking method where websites collect tiny details about your device to identify you).
In short: The Device Memory API gives websites a rough idea of your device’s memory so they can optimize performance, but it keeps the data vague enough to protect you from being tracked too easily.
Even approximate memory values contribute to how uniquely a browser can be identified. For example, if a site knows a browser claims to have 4GB of RAM (versus 8GB, or 2GB), that adds one more piece of identifying information. When many small bits like that are combined, it’s easier to link sessions or detect bots.
In Kameleo anti-detect browser you can set Device Memory from API - this lets you choose how that value appears in the profile. This means you can spoof or adjust the Device Memory value to match the rest of your fingerprint and avoid mismatches that could raise flags. By controlling or spoofing the value, Kameleo makes profiles more realistic, reducing chance of detection.
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