Network Information API - effectiveType is available in Chrome 61+, Opera 48+, Edge 76+, Chrome for Android 76+, Firefox for Android 68+
Save Data API is available in Chrome 65+, Opera 62+, Chrome for Android 76+, Opera for Android 46+
Hardware Concurrency API is available in Chrome 37+, Safari 10.1+, Firefox 48+, Opera 24+, Edge 15+, Chrome for Android 76+, Safari on iOS 10.3+, Firefox for Android 68+, Opera for Android 46+
Performance memory API is a non-standard and only available in Chrome 7+, Opera, Chrome for Android 18+, Opera for Android
Device Memory API is available in Chrome 63+, Opera 50+, Chrome for Android 76+, Opera for Android 46+