Once downloaded, open your Terminal and run the following command to manually add it to Xcode: xcrun simctl runtime add "~/Downloads/iOS_Runtime_Name.dmg" Use code with caution. (Replace the path with your actual file location) . 2. Use the Command Line for Better Stability
Here is why your download is crawling and the fastest ways to bypass the bottleneck. 1. The Direct Manual Download (The Fastest Way) xcode simulator download slow
Third-party DNS like 8.8.8.8 can sometimes route you to a distant Apple CDN server. Switching back to your ISP's default DNS or trying a VPN (even in the same country) has been shown to fix routing-related slowness. Once downloaded, open your Terminal and run the
Search for the specific simulator runtime (e.g., "iOS 18 Simulator Runtime") and download the .dmg file. Use the Command Line for Better Stability Here
Why Your Xcode Simulator Download is Slow (and How to Fix It)
If even direct downloads are slow, the problem might be your local configuration:
The most reliable way to fix slow speeds is to skip the Xcode interface entirely. Browsers like Safari or download managers are often much faster and, crucially, allow you to if the connection drops. Step 1: Log in to the Apple Developer Downloads portal.