GATT Characteristics | Bluetooth Technology Website

Characteristics are defined attribute types that contain a single logical value.

All Assigned Numbers values on this page are normative. All other materials contained on this page is informative only. Authoritative compliance information is contained in the applicable Bluetooth® specification.

NameUniform Type IdentifierAssigned NumberSpecification
Aerobic Heart Rate Lower Limitorg.bluetooth.characteristic.aerobic_heart_rate_lower_limit0x2A7EGSS
Aerobic Heart Rate Upper Limitorg.bluetooth.characteristic.aerobic_heart_rate_upper_limit0x2A84GSS
Aerobic Thresholdorg.bluetooth.characteristic.aerobic_threshold0x2A7FGSS
Ageorg.bluetooth.characteristic.age0x2A80GSS
Aggregateorg.bluetooth.characteristic.aggregate0x2A5AGSS
Alert Category IDorg.bluetooth.characteristic.alert_category_id0x2A43GSS
Alert Category ID Bit Maskorg.bluetooth.characteristic.alert_category_id_bit_mask0x2A42GSS
Alert Levelorg.bluetooth.characteristic.alert_level0x2A06GSS
Alert Notification Control Pointorg.bluetooth.characteristic.alert_notification_control_point0x2A44GSS
Alert Statusorg.bluetooth.characteristic.alert_status0x2A3FGSS
Altitudeorg.bluetooth.characteristic.altitude0x2AB3GSS
Anaerobic Heart Rate Lower Limitorg.bluetooth.characteristic.anaerobic_heart_rate_lower_limit0x2A81GSS
Anaerobic Heart Rate Upper Limitorg.bluetooth.characteristic.anaerobic_heart_rate_upper_limit0x2A82GSS
Anaerobic Thresholdorg.bluetooth.characteristic.anaerobic_threshold0x2A83GSS
Analogorg.bluetooth.characteristic.analog0x2A58GSS
Analog Outputorg.bluetooth.characteristic.analog_output0x2A59GSS
Apparent Wind Directionorg.bluetooth.characteristic.apparent_wind_direction0x2A73GSS
Apparent Wind Speedorg.bluetooth.characteristic.apparent_wind_speed0x2A72GSS
Appearanceorg.bluetooth.characteristic.gap.appearance0x2A01Core 4.0
Barometric Pressure Trendorg.bluetooth.characteristic.barometric_pressure_trend0x2AA3GSS
Battery Levelorg.bluetooth.characteristic.battery_level0x2A19GSS
Battery Level Stateorg.bluetooth.characteristic.battery_level_state0x2A1BGSS
Battery Power Stateorg.bluetooth.characteristic.battery_power_state0x2A1AGSS
Blood Pressure Featureorg.bluetooth.characteristic.blood_pressure_feature0x2A49GSS
Blood Pressure Measurementorg.bluetooth.characteristic.blood_pressure_measurement0x2A35GSS
Body Composition Featureorg.bluetooth.characteristic.body_composition_feature0x2A9BGSS
Body Composition Measurementorg.bluetooth.characteristic.body_composition_measurement0x2A9CGSS
Body Sensor Locationorg.bluetooth.characteristic.body_sensor_location0x2A38GSS
Bond Management Control Pointorg.bluetooth.characteristic.bond_management_control_point0x2AA4GSS
Bond Management Featuresorg.bluetooth.characteristic.bond_management_feature0x2AA5GSS
Boot Keyboard Input Reportorg.bluetooth.characteristic.boot_keyboard_input_report0x2A22GSS
Boot Keyboard Output Reportorg.bluetooth.characteristic.boot_keyboard_output_report0x2A32GSS
Boot Mouse Input Reportorg.bluetooth.characteristic.boot_mouse_input_report0x2A33GSS
BSS Control PointGATT Characteristic UUID0x2B2BBSS
BSS ResponseGATT Characteristic UUID0x2B2CBSS
CGM Featureorg.bluetooth.characteristic.cgm_feature0x2AA8GSS
CGM Measurementorg.bluetooth.characteristic.cgm_measurement0x2AA7GSS
CGM Session Run Timeorg.bluetooth.characteristic.cgm_session_run_time0x2AABGSS
CGM Session Start Timeorg.bluetooth.characteristic.cgm_session_start_time0x2AAAGSS
CGM Specific Ops Control Pointorg.bluetooth.characteristic.cgm_specific_ops_control_point0x2AACGSS
CGM Statusorg.bluetooth.characteristic.cgm_status0x2AA9GSS
Client Supported FeaturesGATT Characteristic UUID0x2B29Core 5.1
Cross Trainer Dataorg.bluetooth.characteristic.cross_trainer_data0x2ACEGSS
CSC Featureorg.bluetooth.characteristic.csc_feature0x2A5CGSS
CSC Measurementorg.bluetooth.characteristic.csc_measurement0x2A5BGSS
Current Timeorg.bluetooth.characteristic.current_time0x2A2BGSS
Cycling Power Control Pointorg.bluetooth.characteristic.cycling_power_control_point0x2A66GSS
Cycling Power Featureorg.bluetooth.characteristic.cycling_power_feature0x2A65GSS
Cycling Power Measurementorg.bluetooth.characteristic.cycling_power_measurement0x2A63GSS
Cycling Power Vectororg.bluetooth.characteristic.cycling_power_vector0x2A64GSS
Database Change Incrementorg.bluetooth.characteristic.database_change_increment0x2A99GSS
Database HashGATT Characteristic UUID0x2B2ACore 5.1 or later
Date of Birthorg.bluetooth.characteristic.date_of_birth0x2A85GSS
Date of Threshold Assessmentorg.bluetooth.characteristic.date_of_threshold_assessment0x2A86GSS
Date Timeorg.bluetooth.characteristic.date_time0x2A08GSS
Date UTCorg.bluetooth.characteristic.date_utc0x2AEDGSS
Day Date Timeorg.bluetooth.characteristic.day_date_time0x2A0AGSS
Day of Weekorg.bluetooth.characteristic.day_of_week0x2A09GSS
Descriptor Value Changedorg.bluetooth.characteristic.descriptor_value_changed0x2A7DGSS
Dew Pointorg.bluetooth.characteristic.dew_point0x2A7BGSS
Digitalorg.bluetooth.characteristic.digital0x2A56GSS
Digital Outputorg.bluetooth.characteristic.digital_output0x2A57GSS
DST Offsetorg.bluetooth.characteristic.dst_offset0x2A0DGSS
Elevationorg.bluetooth.characteristic.elevation0x2A6CGSS
Email Addressorg.bluetooth.characteristic.email_address0x2A87GSS
Emergency IDGATT Characteristic UUID0x2B2DEMCS
Emergency TextGATT Characteristic UUID0x2B2EEMCS
Exact Time 100org.bluetooth.characteristic.exact_time_1000x2A0BGSS
Exact Time 256org.bluetooth.characteristic.exact_time_2560x2A0CGSS
Fat Burn Heart Rate Lower Limitorg.bluetooth.characteristic.fat_burn_heart_rate_lower_limit0x2A88GSS
Fat Burn Heart Rate Upper Limitorg.bluetooth.characteristic.fat_burn_heart_rate_upper_limit0x2A89GSS
Firmware Revision Stringorg.bluetooth.characteristic.firmware_revision_string0x2A26GSS
First Nameorg.bluetooth.characteristic.first_name0x2A8AGSS
Fitness Machine Control Pointorg.bluetooth.characteristic.fitness_machine_control_point0x2AD9GSS
Fitness Machine Featureorg.bluetooth.characteristic.fitness_machine_feature0x2ACCGSS
Fitness Machine Statusorg.bluetooth.characteristic.fitness_machine_status0x2ADAGSS
Five Zone Heart Rate Limitsorg.bluetooth.characteristic.five_zone_heart_rate_limits0x2A8BGSS
Floor Numberorg.bluetooth.characteristic.floor_number0x2AB2GSS
Central Address Resolutionorg.bluetooth.characteristic.gap.central_address_resolution0x2AA6Core 4.2
Device Nameorg.bluetooth.characteristic.gap.device_name0x2A00Core 4.0
Peripheral Preferred Connection Parametersorg.bluetooth.characteristic.gap.peripheral_preferred_connection_parameters0x2A04Core 4.0
Peripheral Privacy Flagorg.bluetooth.characteristic.gap.peripheral_privacy_flag0x2A02Core 4.0
Reconnection Addressorg.bluetooth.characteristic.gap.reconnection_address0x2A03Core 4.0
Service Changedorg.bluetooth.characteristic.gatt.service_changed0x2A05Core 4.0
Genderorg.bluetooth.characteristic.gender0x2A8CGSS
Glucose Featureorg.bluetooth.characteristic.glucose_feature0x2A51GSS
Glucose Measurementorg.bluetooth.characteristic.glucose_measurement0x2A18GSS
Glucose Measurement Contextorg.bluetooth.characteristic.glucose_measurement_context0x2A34GSS
Gust Factororg.bluetooth.characteristic.gust_factor0x2A74GSS
Hardware Revision Stringorg.bluetooth.characteristic.hardware_revision_string0x2A27GSS
Heart Rate Control Pointorg.bluetooth.characteristic.heart_rate_control_point0x2A39GSS
Heart Rate Maxorg.bluetooth.characteristic.heart_rate_max0x2A8DGSS
Heart Rate Measurementorg.bluetooth.characteristic.heart_rate_measurement0x2A37GSS
Heat Indexorg.bluetooth.characteristic.heat_index0x2A7AGSS
Heightorg.bluetooth.characteristic.height0x2A8EGSS
HID Control Pointorg.bluetooth.characteristic.hid_control_point0x2A4CGSS
HID Informationorg.bluetooth.characteristic.hid_information0x2A4AGSS
Hip Circumferenceorg.bluetooth.characteristic.hip_circumference0x2A8FGSS
HTTP Control Pointorg.bluetooth.characteristic.http_control_point0x2ABAGSS
HTTP Entity Bodyorg.bluetooth.characteristic.http_entity_body0x2AB9GSS
HTTP Headersorg.bluetooth.characteristic.http_headers0x2AB7GSS
HTTP Status Codeorg.bluetooth.characteristic.http_status_code0x2AB8GSS
HTTPS Securityorg.bluetooth.characteristic.https_security0x2ABBGSS
Humidityorg.bluetooth.characteristic.humidity0x2A6FGSS
IDD Annunciation Statusorg.bluetooth.characteristic.idd_annunciation_status0x2B22GSS
IDD Command Control Pointorg.bluetooth.characteristic.idd_command_control_point0x2B25GSS
IDD Command Dataorg.bluetooth.characteristic.idd_command_data0x2B26GSS
IDD Featuresorg.bluetooth.characteristic.idd_features0x2B23GSS
IDD History Dataorg.bluetooth.characteristic.idd_history_data0x2B28GSS
IDD Record Access Control Pointorg.bluetooth.characteristic.idd_record_access_control_point0x2B27GSS
IDD Statusorg.bluetooth.characteristic.idd_status0x2B21GSS
IDD Status Changedorg.bluetooth.characteristic.idd_status_changed0x2B20GSS
IDD Status Reader Control Pointorg.bluetooth.characteristic.idd_status_reader_control_point0x2B24GSS
IEEE 11073-20601 Regulatory Certification Data Listorg.bluetooth.characteristic.ieee_11073-20601_regulatory_certification_data_list0x2A2AGSS
Indoor Bike Dataorg.bluetooth.characteristic.indoor_bike_data0x2AD2GSS
Indoor Positioning Configurationorg.bluetooth.characteristic.indoor_positioning_configuration0x2AADGSS
Intermediate Cuff Pressureorg.bluetooth.characteristic.intermediate_cuff_pressure0x2A36GSS
Intermediate Temperatureorg.bluetooth.characteristic.intermediate_temperature0x2A1EGSS
Irradianceorg.bluetooth.characteristic.irradiance0x2A77GSS
Languageorg.bluetooth.characteristic.language0x2AA2GSS
Last Nameorg.bluetooth.characteristic.last_name0x2A90GSS
Latitudeorg.bluetooth.characteristic.latitude0x2AAEGSS
LN Control Pointorg.bluetooth.characteristic.ln_control_point0x2A6BGSS
LN Featureorg.bluetooth.characteristic.ln_feature0x2A6AGSS
Local East Coordinateorg.bluetooth.characteristic.local_east_coordinate0x2AB1GSS
Local North Coordinateorg.bluetooth.characteristic.local_north_coordinate0x2AB0GSS
Local Time Informationorg.bluetooth.characteristic.local_time_information0x2A0FGSS
Location and Speed Characteristicorg.bluetooth.characteristic.location_and_speed0x2A67GSS
Location Nameorg.bluetooth.characteristic.location_name0x2AB5GSS
Longitudeorg.bluetooth.characteristic.Longitude0x2AAFGSS
Magnetic Declinationorg.bluetooth.characteristic.magnetic_declination0x2A2CGSS
Magnetic Flux Density – 2Dorg.bluetooth.characteristic.Magnetic_flux_density_2D0x2AA0GSS
Magnetic Flux Density – 3Dorg.bluetooth.characteristic.Magnetic_flux_density_3D0x2AA1GSS
Manufacturer Name Stringorg.bluetooth.characteristic.manufacturer_name_string0x2A29GSS
Maximum Recommended Heart Rateorg.bluetooth.characteristic.maximum_recommended_heart_rate0x2A91GSS
Measurement Intervalorg.bluetooth.characteristic.measurement_interval0x2A21GSS
Model Number Stringorg.bluetooth.characteristic.model_number_string0x2A24GSS
Navigationorg.bluetooth.characteristic.navigation0x2A68GSS
Network Availabilityorg.bluetooth.characteristic.network_availability0x2A3EGSS
New Alertorg.bluetooth.characteristic.new_alert0x2A46GSS
Object Action Control Pointorg.bluetooth.characteristic.object_action_control_point0x2AC5GSS
Object Changedorg.bluetooth.characteristic.object_changed0x2AC8GSS
Object First-Createdorg.bluetooth.characteristic.object_first_created0x2AC1GSS
Object IDorg.bluetooth.characteristic.object_id0x2AC3GSS
Object Last-Modifiedorg.bluetooth.characteristic.object_last_modified0x2AC2GSS
Object List Control Pointorg.bluetooth.characteristic.object_list_control_point0x2AC6GSS
Object List Filterorg.bluetooth.characteristic.object_list_filter0x2AC7GSS
Object Nameorg.bluetooth.characteristic.object_name0x2ABEGSS
Object Propertiesorg.bluetooth.characteristic.object_properties0x2AC4GSS
Object Sizeorg.bluetooth.characteristic.object_size0x2AC0GSS
Object Typeorg.bluetooth.characteristic.object_type0x2ABFGSS
OTS Featureorg.bluetooth.characteristic.ots_feature0x2ABDGSS
PLX Continuous Measurement Characteristicorg.bluetooth.characteristic.plx_continuous_measurement0x2A5FGSS
PLX Featuresorg.bluetooth.characteristic.plx_features0x2A60GSS
PLX Spot-Check Measurementorg.bluetooth.characteristic.plx_spot_check_measurement0x2A5EGSS
PnP IDorg.bluetooth.characteristic.pnp_id0x2A50GSS
Pollen Concentrationorg.bluetooth.characteristic.pollen_concentration0x2A75GSS
Position 2Dorg.bluetooth.characteristic.position_2d0x2A2FGSS
Position 3Dorg.bluetooth.characteristic.position_3d0x2A30GSS
Position Qualityorg.bluetooth.characteristic.position_quality0x2A69GSS
Pressureorg.bluetooth.characteristic.pressure0x2A6DGSS
Protocol Modeorg.bluetooth.characteristic.protocol_mode0x2A4EGSS
Pulse Oximetry Control Pointorg.bluetooth.characteristic.pulse_oximetry_control_point0x2A62GSS
Rainfallorg.bluetooth.characteristic.rainfall0x2A78GSS
RC Featureorg.bluetooth.characteristic.rc_feature0x2B1DGSS
RC Settingsorg.bluetooth.characteristic.rc_settings0x2B1EGSS
Reconnection Configuration Control Pointorg.bluetooth.characteristic.reconnection_configuration_control_point0x2B1FGSS
Record Access Control Pointorg.bluetooth.characteristic.record_access_control_point0x2A52GSS
Reference Time Informationorg.bluetooth.characteristic.reference_time_information0x2A14GSS
Registered User CharacteristicGATT Characteristic UUID0x2B37UDS 1.1
Removableorg.bluetooth.characteristic.removable0x2A3AGSS
Reportorg.bluetooth.characteristic.report0x2A4DGSS
Report Maporg.bluetooth.characteristic.report_map0x2A4BGSS
Resolvable Private Address Onlyorg.bluetooth.characteristic.resolvable_private_address_only0x2AC9Core 5.0
Resting Heart Rateorg.bluetooth.characteristic.resting_heart_rate0x2A92GSS
Ringer Control pointorg.bluetooth.characteristic.ringer_control_point0x2A40GSS
Ringer Settingorg.bluetooth.characteristic.ringer_setting0x2A41GSS
Rower Dataorg.bluetooth.characteristic.rower_data0x2AD1GSS
RSC Featureorg.bluetooth.characteristic.rsc_feature0x2A54GSS
RSC Measurementorg.bluetooth.characteristic.rsc_measurement0x2A53GSS
SC Control Pointorg.bluetooth.characteristic.sc_control_point0x2A55GSS
Scan Interval Windoworg.bluetooth.characteristic.scan_interval_window0x2A4FGSS
Scan Refreshorg.bluetooth.characteristic.scan_refresh0x2A31GSS
Scientific Temperature Celsiusorg.bluetooth.characteristic.scientific_temperature_celsius0x2A3CGSS
Secondary Time Zoneorg.bluetooth.characteristic.secondary_time_zone0x2A10GSS
Sensor Locationorg.bluetooth.characteristic.sensor_location0x2A5DGSS
Serial Number Stringorg.bluetooth.characteristic.serial_number_string0x2A25GSS
Server Supported FeaturesGATT Characteristic UUID0x2B3ACore 5.2
Service Requiredorg.bluetooth.characteristic.service_required0x2A3BGSS
Software Revision Stringorg.bluetooth.characteristic.software_revision_string0x2A28GSS
Sport Type for Aerobic and Anaerobic Thresholdsorg.bluetooth.characteristic.sport_type_for_aerobic_and_anaerobic_thresholds0x2A93GSS
Stair Climber Dataorg.bluetooth.characteristic.stair_climber_data0x2AD0GSS
Step Climber Dataorg.bluetooth.characteristic.step_climber_data0x2ACFGSS
Stringorg.bluetooth.characteristic.string0x2A3DGSS
Supported Heart Rate Rangeorg.bluetooth.characteristic.supported_heart_rate_range0x2AD7GSS
Supported Inclination Rangeorg.bluetooth.characteristic.supported_inclination_range0x2AD5GSS
Supported New Alert Categoryorg.bluetooth.characteristic.supported_new_alert_category0x2A47GSS
Supported Power Rangeorg.bluetooth.characteristic.supported_power_range0x2AD8GSS
Supported Resistance Level Rangeorg.bluetooth.characteristic.supported_resistance_level_range0x2AD6GSS
Supported Speed Rangeorg.bluetooth.characteristic.supported_speed_range0x2AD4GSS
Supported Unread Alert Categoryorg.bluetooth.characteristic.supported_unread_alert_category0x2A48GSS
System IDorg.bluetooth.characteristic.system_id0x2A23GSS
TDS Control Pointorg.bluetooth.characteristic.tds_control_point0x2ABCGSS
Temperatureorg.bluetooth.characteristic.temperature0x2A6EGSS
Temperature Celsiusorg.bluetooth.characteristic.temperature_celsius0x2A1FGSS
Temperature Fahrenheitorg.bluetooth.characteristic.temperature_fahrenheit0x2A20GSS
Temperature Measurementorg.bluetooth.characteristic.temperature_measurement0x2A1CGSS
Temperature Typeorg.bluetooth.characteristic.temperature_type0x2A1DGSS
Three Zone Heart Rate Limitsorg.bluetooth.characteristic.three_zone_heart_rate_limits0x2A94GSS
Time Accuracyorg.bluetooth.characteristic.time_accuracy0x2A12GSS
Time Broadcastorg.bluetooth.characteristic.time_broadcast0x2A15GSS
Time Sourceorg.bluetooth.characteristic.time_source0x2A13GSS
Time Update Control Pointorg.bluetooth.characteristic.time_update_control_point0x2A16GSS
Time Update Stateorg.bluetooth.characteristic.time_update_state0x2A17GSS
Time with DSTorg.bluetooth.characteristic.time_with_dst0x2A11GSS
Time Zoneorg.bluetooth.characteristic.time_zone0x2A0EGSS
Training Statusorg.bluetooth.characteristic.training_status0x2AD3GSS
Treadmill Dataorg.bluetooth.characteristic.treadmill_data0x2ACDGSS
True Wind Directionorg.bluetooth.characteristic.true_wind_direction0x2A71GSS
True Wind Speedorg.bluetooth.characteristic.true_wind_speed0x2A70GSS
Two Zone Heart Rate Limitorg.bluetooth.characteristic.two_zone_heart_rate_limit0x2A95GSS
Tx Power Levelorg.bluetooth.characteristic.tx_power_level0x2A07GSS
Uncertaintyorg.bluetooth.characteristic.uncertainty0x2AB4GSS
Unread Alert Statusorg.bluetooth.characteristic.unread_alert_status0x2A45GSS
URIorg.bluetooth.characteristic.uri0x2AB6GSS
User Control Pointorg.bluetooth.characteristic.user_control_point0x2A9FGSS
User Indexorg.bluetooth.characteristic.user_index0x2A9AGSS
UV Indexorg.bluetooth.characteristic.uv_index0x2A76GSS
VO2 Maxorg.bluetooth.characteristic.vo2_max0x2A96GSS
Waist Circumferenceorg.bluetooth.characteristic.waist_circumference0x2A97GSS
Weightorg.bluetooth.characteristic.weight0x2A98GSS
Weight Measurementorg.bluetooth.characteristic.weight_measurement0x2A9DGSS
Weight Scale Featureorg.bluetooth.characteristic.weight_scale_feature0x2A9EGSS
Wind Chillorg.bluetooth.characteristic.wind_chill0x2A79GSS

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