Can I use
?

headers HTTP header: `Sec-CH-Width` request header

IE

  1. ❌ 6 - 10: Not supported
  2. ❌ 11: Not supported

Edge

  1. ❌ 12 - 18: Not supported
  2. ◐ 79 - 96: Partial support
  3. ✅ 97 - 154: Supported
  4. ✅ 155: Supported

Firefox

  1. ❌ 2 - 157: Not supported
  2. ❌ 158: Not supported
  3. ❌ 159 - 161: Not supported

Chrome

  1. ❌ 4 - 45: Not supported
  2. ◐ 46 - 96: Partial support
  3. ✅ 97 - 154: Supported
  4. ✅ 155: Supported
  5. ✅ 156 - 158: Supported

Safari

  1. ❌ 3.1 - 26.6: Not supported
  2. ❌ 27: Not supported
  3. ❌ 27.1 - 27.2: Not supported
  4. ﹖ TP: Support unknown

Opera

  1. ❌ 10 - 32: Not supported
  2. ◐ 33 - 82: Partial support
  3. ✅ 83 - 134: Supported
  4. ✅ 135: Supported

Safari on iOS

  1. ❌ 3.2 - 26.6: Not supported
  2. ❌ 27.0: Not supported
  3. ❌ 27.1 - 27.2: Not supported

Opera Mini

  1. ﹖ all: Support unknown

Android Browser

  1. ❌ 2.1 - 4.4.4: Not supported
  2. ✅ 155: Supported

Opera Mobile

  1. ❌ 12 - 12.1: Not supported
  2. ✅ 80: Supported

Chrome for Android

  1. ✅ 155: Supported

Firefox for Android

  1. ❌ 158: Not supported

UC Browser for Android

  1. ✅ 15.5: Supported

Samsung Internet

  1. ❌ 4: Not supported
  2. ◐ 5 - 17.0: Partial support
  3. ✅ 18.0 - 29: Supported
  4. ✅ 30: Supported

QQ Browser

  1. ✅ 14.9: Supported

Baidu Browser

  1. ﹖ 13.52: Support unknown

KaiOS Browser

  1. ◐ 2.5: Partial support
  2. ◐ 3: Partial support