Web/API/BluetoothCharacteristicProperties

Draft This page is not complete.

Secure contextThis feature is available only in secure contexts (HTTPS), in some or all supporting browsers.

This is an experimental technologyCheck the Browser compatibility table carefully before using this in production.

The BluetoothCharacteristicProperties interface of the the Web Bluetooth API provides the operations that are valid on the given BluetoothRemoteGATTCharacteristic. This interface is returned by calling BluetoothRemoteGATTCharacteristic.properties.

Properties

authenticatedSignedWritesRead only

Returns a boolean that is true if signed writing to the characteristic value is permitted.

broadcastRead only

Returns a boolean that is true if the broadcast of the characteristic value is permitted using the Server Characteristic Configuration Descriptor.

indicateRead only

Returns a boolean that is true if indications of the characteristic value with acknowledgement is permitted.

notifyRead only

Returns a boolean that is true if notifications of the characteristic value without acknowledgement is permitted.

readRead only

Returns a boolean that is true if the reading of the characteristic value is permitted.

reliableWriteRead only

Returns a boolean that is true if reliable writes to the characteristic is permitted.

writableAuxiliariesRead only

Returns a boolean that is true if reliable writes to the characteristic descriptor is permitted.

writeRead only

Returns a boolean that is true if the writing to the characteristic with response is permitted.

writeWithoutResponseRead only

Returns a boolean that is true if the writing to the characteristic without response is permitted.

Examples

The following example shows how tell if a GATT characteristic supports value change notifications.

let device = await navigator.bluetooth.requestDevice({
  filters: [{services: ['heart_rate']}]
});
let gatt = await device.gatt.connect();
let service = await gatt.getPrimaryService('heart_rate');
let characteristic = await service.getCharacteristic('heart_rate_measurement');
if (characteristic.properties.notify) {
  characteristic.addEventListener('characteristicvaluechanged',
      function(event) {
    console.log(`Received heart rate measurement: ${event.target.value}`);
  }
  await characteristic.startNotifications();
}

Specifications

Specification	Status	Comment
Web BluetoothThe definition of 'BluetoothCharacteristicProperties' in that specification.	Draft	Initial definition.

Browser Compatibility

The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.

Update compatibility data on GitHub

	Desktop						Mobile
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	Android webview	Chrome for Android	Firefox for Android	Opera for Android	Safari on iOS	Samsung Internet
BluetoothCharacteristicProperties Experimental'	Chrome Full support 56 Notes' Full support 56 Notes' Notes' ChromeOS and macOS only. Full support 56 Notes' Disabled' Notes' Linux and versions of Windows earlier than 10. Disabled' From version 56: this feature is behind the #enable-experimental-web-platform-features preference (needs to be set to enabled). To change preferences in Chrome, visit chrome://flags. Full support 70 Notes' Notes' Windows 10.	Edge Full support ≤79 Notes' Full support ≤79 Notes' Notes' macOS only. Full support ≤79 Notes' Disabled' Notes' Linux and versions of Windows earlier than 10. Disabled' From version ≤79: this feature is behind the #enable-experimental-web-platform-features preference (needs to be set to enabled). Full support ≤79 Notes' Notes' Windows 10.	Firefox No support No	IE No support No	Opera Full support 43 Notes' Full support 43 Notes' Notes' macOS only. Full support 43 Notes' Disabled' Notes' Linux and versions of Windows earlier than 10. Disabled' From version 43: this feature is behind the #enable-experimental-web-platform-features preference (needs to be set to enabled). Full support 57 Notes' Notes' Windows 10.	Safari No support No	WebView Android No support No	Chrome Android Full support 56	Firefox Android No support No	Opera Android Full support 43	Safari iOS No support No	Samsung Internet Android Full support 6.0
authenticatedSignedWrites Experimental'	Chrome Full support 56 Notes' Full support 56 Notes' Notes' ChromeOS and macOS only. Full support 56 Notes' Disabled' Notes' Linux and versions of Windows earlier than 10. Disabled' From version 56: this feature is behind the #enable-experimental-web-platform-features preference (needs to be set to enabled). To change preferences in Chrome, visit chrome://flags. Full support 70 Notes' Notes' Windows 10.	Edge Full support ≤79 Notes' Full support ≤79 Notes' Notes' macOS only. Full support ≤79 Notes' Disabled' Notes' Linux and versions of Windows earlier than 10. Disabled' From version ≤79: this feature is behind the #enable-experimental-web-platform-features preference (needs to be set to enabled). Full support ≤79 Notes' Notes' Windows 10.	Firefox No support No	IE No support No	Opera Full support 43 Notes' Full support 43 Notes' Notes' macOS only. Full support 43 Notes' Disabled' Notes' Linux and versions of Windows earlier than 10. Disabled' From version 43: this feature is behind the #enable-experimental-web-platform-features preference (needs to be set to enabled). Full support 57 Notes' Notes' Windows 10.	Safari No support No	WebView Android No support No	Chrome Android Full support 56	Firefox Android No support No	Opera Android Full support 43	Safari iOS No support No	Samsung Internet Android Full support 6.0
broadcast Experimental'	Chrome Full support 56 Notes' Full support 56 Notes' Notes' ChromeOS and macOS only. Full support 56 Notes' Disabled' Notes' Linux and versions of Windows earlier than 10. Disabled' From version 56: this feature is behind the #enable-experimental-web-platform-features preference (needs to be set to enabled). To change preferences in Chrome, visit chrome://flags. Full support 70 Notes' Notes' Windows 10.	Edge Full support ≤79 Notes' Full support ≤79 Notes' Notes' macOS only. Full support ≤79 Notes' Disabled' Notes' Linux and versions of Windows earlier than 10. Disabled' From version ≤79: this feature is behind the #enable-experimental-web-platform-features preference (needs to be set to enabled). Full support ≤79 Notes' Notes' Windows 10.	Firefox No support No	IE No support No	Opera Full support 43 Notes' Full support 43 Notes' Notes' macOS only. Full support 43 Notes' Disabled' Notes' Linux and versions of Windows earlier than 10. Disabled' From version 43: this feature is behind the #enable-experimental-web-platform-features preference (needs to be set to enabled). Full support 57 Notes' Notes' Windows 10.	Safari No support No	WebView Android No support No	Chrome Android Full support 56	Firefox Android No support No	Opera Android Full support 43	Safari iOS No support No	Samsung Internet Android Full support 6.0
indicate Experimental'	Chrome Full support 56 Notes' Full support 56 Notes' Notes' ChromeOS and macOS only. Full support 56 Notes' Disabled' Notes' Linux and versions of Windows earlier than 10. Disabled' From version 56: this feature is behind the #enable-experimental-web-platform-features preference (needs to be set to enabled). To change preferences in Chrome, visit chrome://flags. Full support 70 Notes' Notes' Windows 10.	Edge Full support ≤79 Notes' Full support ≤79 Notes' Notes' macOS only. Full support ≤79 Notes' Disabled' Notes' Linux and versions of Windows earlier than 10. Disabled' From version ≤79: this feature is behind the #enable-experimental-web-platform-features preference (needs to be set to enabled). Full support ≤79 Notes' Notes' Windows 10.	Firefox No support No	IE No support No	Opera Full support 43 Notes' Full support 43 Notes' Notes' macOS only. Full support 43 Notes' Disabled' Notes' Linux and versions of Windows earlier than 10. Disabled' From version 43: this feature is behind the #enable-experimental-web-platform-features preference (needs to be set to enabled). Full support 57 Notes' Notes' Windows 10.	Safari No support No	WebView Android No support No	Chrome Android Full support 56	Firefox Android No support No	Opera Android Full support 43	Safari iOS No support No	Samsung Internet Android Full support 6.0
notify Experimental'	Chrome Full support 56 Notes' Full support 56 Notes' Notes' ChromeOS and macOS only. Full support 56 Notes' Disabled' Notes' Linux and versions of Windows earlier than 10. Disabled' From version 56: this feature is behind the #enable-experimental-web-platform-features preference (needs to be set to enabled). To change preferences in Chrome, visit chrome://flags. Full support 70 Notes' Notes' Windows 10.	Edge Full support ≤79 Notes' Full support ≤79 Notes' Notes' macOS only. Full support ≤79 Notes' Disabled' Notes' Linux and versions of Windows earlier than 10. Disabled' From version ≤79: this feature is behind the #enable-experimental-web-platform-features preference (needs to be set to enabled). Full support ≤79 Notes' Notes' Windows 10.	Firefox No support No	IE No support No	Opera Full support 43 Notes' Full support 43 Notes' Notes' macOS only. Full support 43 Notes' Disabled' Notes' Linux and versions of Windows earlier than 10. Disabled' From version 43: this feature is behind the #enable-experimental-web-platform-features preference (needs to be set to enabled). Full support 57 Notes' Notes' Windows 10.	Safari No support No	WebView Android No support No	Chrome Android Full support 56	Firefox Android No support No	Opera Android Full support 43	Safari iOS No support No	Samsung Internet Android Full support 6.0
read Experimental'	Chrome Full support 56 Notes' Full support 56 Notes' Notes' ChromeOS and macOS only. Full support 56 Notes' Disabled' Notes' Linux and versions of Windows earlier than 10. Disabled' From version 56: this feature is behind the #enable-experimental-web-platform-features preference (needs to be set to enabled). To change preferences in Chrome, visit chrome://flags. Full support 70 Notes' Notes' Windows 10.	Edge Full support ≤79 Notes' Full support ≤79 Notes' Notes' macOS only. Full support ≤79 Notes' Disabled' Notes' Linux and versions of Windows earlier than 10. Disabled' From version ≤79: this feature is behind the #enable-experimental-web-platform-features preference (needs to be set to enabled). Full support ≤79 Notes' Notes' Windows 10.	Firefox No support No	IE No support No	Opera Full support 43 Notes' Full support 43 Notes' Notes' macOS only. Full support 43 Notes' Disabled' Notes' Linux and versions of Windows earlier than 10. Disabled' From version 43: this feature is behind the #enable-experimental-web-platform-features preference (needs to be set to enabled). Full support 57 Notes' Notes' Windows 10.	Safari No support No	WebView Android No support No	Chrome Android Full support 56	Firefox Android No support No	Opera Android Full support 43	Safari iOS No support No	Samsung Internet Android Full support 6.0
reliableWrite Experimental'	Chrome Full support 56 Notes' Full support 56 Notes' Notes' ChromeOS and macOS only. Full support 56 Notes' Disabled' Notes' Linux and versions of Windows earlier than 10. Disabled' From version 56: this feature is behind the #enable-experimental-web-platform-features preference (needs to be set to enabled). To change preferences in Chrome, visit chrome://flags. Full support 70 Notes' Notes' Windows 10.	Edge Full support ≤79 Notes' Full support ≤79 Notes' Notes' macOS only. Full support ≤79 Notes' Disabled' Notes' Linux and versions of Windows earlier than 10. Disabled' From version ≤79: this feature is behind the #enable-experimental-web-platform-features preference (needs to be set to enabled). Full support ≤79 Notes' Notes' Windows 10.	Firefox No support No	IE No support No	Opera Full support 43 Notes' Full support 43 Notes' Notes' macOS only. Full support 43 Notes' Disabled' Notes' Linux and versions of Windows earlier than 10. Disabled' From version 43: this feature is behind the #enable-experimental-web-platform-features preference (needs to be set to enabled). Full support 57 Notes' Notes' Windows 10.	Safari No support No	WebView Android No support No	Chrome Android Full support 56	Firefox Android No support No	Opera Android Full support 43	Safari iOS No support No	Samsung Internet Android Full support 6.0
writableAuxiliaries Experimental'	Chrome Full support 56 Notes' Full support 56 Notes' Notes' ChromeOS and macOS only. Full support 56 Notes' Disabled' Notes' Linux and versions of Windows earlier than 10. Disabled' From version 56: this feature is behind the #enable-experimental-web-platform-features preference (needs to be set to enabled). To change preferences in Chrome, visit chrome://flags. Full support 70 Notes' Notes' Windows 10.	Edge Full support ≤79 Notes' Full support ≤79 Notes' Notes' macOS only. Full support ≤79 Notes' Disabled' Notes' Linux and versions of Windows earlier than 10. Disabled' From version ≤79: this feature is behind the #enable-experimental-web-platform-features preference (needs to be set to enabled). Full support ≤79 Notes' Notes' Windows 10.	Firefox No support No	IE No support No	Opera Full support 43 Notes' Full support 43 Notes' Notes' macOS only. Full support 43 Notes' Disabled' Notes' Linux and versions of Windows earlier than 10. Disabled' From version 43: this feature is behind the #enable-experimental-web-platform-features preference (needs to be set to enabled). Full support 57 Notes' Notes' Windows 10.	Safari No support No	WebView Android No support No	Chrome Android Full support 56	Firefox Android No support No	Opera Android Full support 43	Safari iOS No support No	Samsung Internet Android Full support 6.0
write Experimental'	Chrome Full support 56 Notes' Full support 56 Notes' Notes' ChromeOS and macOS only. Full support 56 Notes' Disabled' Notes' Linux and versions of Windows earlier than 10. Disabled' From version 56: this feature is behind the #enable-experimental-web-platform-features preference (needs to be set to enabled). To change preferences in Chrome, visit chrome://flags. Full support 70 Notes' Notes' Windows 10.	Edge Full support ≤79 Notes' Full support ≤79 Notes' Notes' macOS only. Full support ≤79 Notes' Disabled' Notes' Linux and versions of Windows earlier than 10. Disabled' From version ≤79: this feature is behind the #enable-experimental-web-platform-features preference (needs to be set to enabled). Full support ≤79 Notes' Notes' Windows 10.	Firefox No support No	IE No support No	Opera Full support 43 Notes' Full support 43 Notes' Notes' macOS only. Full support 43 Notes' Disabled' Notes' Linux and versions of Windows earlier than 10. Disabled' From version 43: this feature is behind the #enable-experimental-web-platform-features preference (needs to be set to enabled). Full support 57 Notes' Notes' Windows 10.	Safari No support No	WebView Android No support No	Chrome Android Full support 56	Firefox Android No support No	Opera Android Full support 43	Safari iOS No support No	Samsung Internet Android Full support 6.0
writeWithoutResponse Experimental'	Chrome Full support 56 Notes' Full support 56 Notes' Notes' ChromeOS and macOS only. Full support 56 Notes' Disabled' Notes' Linux and versions of Windows earlier than 10. Disabled' From version 56: this feature is behind the #enable-experimental-web-platform-features preference (needs to be set to enabled). To change preferences in Chrome, visit chrome://flags. Full support 70 Notes' Notes' Windows 10.	Edge Full support ≤79 Notes' Full support ≤79 Notes' Notes' macOS only. Full support ≤79 Notes' Disabled' Notes' Linux and versions of Windows earlier than 10. Disabled' From version ≤79: this feature is behind the #enable-experimental-web-platform-features preference (needs to be set to enabled). Full support ≤79 Notes' Notes' Windows 10.	Firefox No support No	IE No support No	Opera Full support 43 Notes' Full support 43 Notes' Notes' macOS only. Full support 43 Notes' Disabled' Notes' Linux and versions of Windows earlier than 10. Disabled' From version 43: this feature is behind the #enable-experimental-web-platform-features preference (needs to be set to enabled). Full support 57 Notes' Notes' Windows 10.	Safari No support No	WebView Android No support No	Chrome Android Full support 56	Firefox Android No support No	Opera Android Full support 43	Safari iOS No support No	Samsung Internet Android Full support 6.0

Legend

Full support  

Full support

No support  

No support

Experimental. Expect behavior to change in the future.'

Experimental. Expect behavior to change in the future.

See implementation notes.'

See implementation notes.

User must explicitly enable this feature.'

User must explicitly enable this feature.

BluetoothCharacteristicProperties by Mozilla Contributors is licensed under CC-BY-SA 2.5.