1. FCC ID
  2. 2AJ2X
  3. 2AJ2X-WS50

FCC ID 2AJ2X-WS50

Sensor Device

by Whoop Inc.

Grantee Code: 2AJ2X   Product Code: WS50
Latest application date: 2025-05-08

FCC ID Device Details

FCC ID2AJ2X-WS50
Mirrorsfcc.id | gov | fccid.ai
Grantee Code2AJ2X
Product CodeWS50
Applicant BusinessWhoop Inc. 🇺🇸
Related Domains whoop.com
Equipment ClassSensor Device
Test FirmUL LLC

Operating Frequencies

Frequency RangeApplication PurposeFinal Action Date
13.56 MHzOriginal Equipment2025-05-08
2402-2480 MHzOriginal Equipment2025-05-08

Exhibits

DocumentTypeAvailableFile
8]WHOOP_5.0_User GuideUsers Manual2025-11-01PDF 5.8 MB
8]FCC-ISED-StatementsUsers Manual2025-05-08PDF 193 KB
STC_2]WS50 Internal PhotosInternal Photos2025-11-01PDF 1.2 MB
STC_1]WS50 External PhotosExternal Photos2025-11-01PDF 1.2 MB
3]E-Label_Information-v2ID Label/Location Info2025-05-08PDF 222.2 KB
R14956064-EP2 FCC IC NFC SETUP PHOTOS EXHIBITTest Setup Photos2025-11-01PDF 969.3 KB
STC_R14956064-EP3 BLE SETUP PHOTOS EXHIBITTest Setup Photos2025-11-01PDF 919 KB
STC_R14956064-S1_App A_SAR Setup PhotosTest Setup Photos2025-11-01PDF 534.1 KB
7]WS50 Antenna Gains Metadata onlyTest Report2025-05-08PDF 122.7 KB
R14956064-E5 FCC IC BLE REPORTTest Report2025-05-08PDF 2.9 MB
R14956064-E7 v4 FCC IC NFC ReportTest Report2025-05-08PDF 989.9 KB
WS50 Antenna GainsTest Report2025-05-08PDF 123.6 KB
11]FCC 2.911[d][5] Attestation-WS50Attestation Statements2025-05-08PDF 129.7 KB
12]FCC 2.911[d][7]-Agent is Applicant -AllAttestation Statements2025-05-08PDF 130.9 KB
10] FCC Request for ConfidentialityCover Letter(s)2025-05-08PDF 165.8 KB
R14956064-S1 v7 FCC SAR ReportRF Exposure Info2025-05-08PDF 1.1 MB
R14956064-S1_App B_SAR System Check PlotsRF Exposure Info2025-05-08PDF 214 KB
R14956064-S1_App C_SAR Highest Test PlotsRF Exposure Info2025-05-08PDF 626 KB
R14956064-S1_App D_SAR Tissue IngredientsRF Exposure Info2025-05-08PDF 275.8 KB
R14956064-S1_App E_SAR Probe CertificatesRF Exposure Info2025-05-08PDF 5.3 MB
R14956064-S1_App F_SAR Dipole CertificatesRF Exposure Info2025-05-08PDF 1,003.8 KB
confidential_6]WS50-BlockDiagram Metadata onlyBlock DiagramPDF 317.4 KB
confidential_4]WS50_Schematic_820-000100 Metadata onlySchematicsPDF 2.2 MB
5]WHOOP-Gen5-Description_OD_V4.2 Metadata onlyOperational DescriptionPDF 4.7 MB
7]WS50 Antenna Specification Metadata onlyOperational DescriptionPDF 755.4 KB

Application Information

Application IDlzcDRZdahtFOJ/Sgzui32w==
Final Action Date2025-05-08
Application PurposeOriginal Equipment
Applicant FRN0025962804
ModelWS50
Frequency Range13.56 MHz
Equipment ClassDXX - Part 15 Low Power Communication Device Transmitter
Device DescriptionSensor Device
Responsible PartyAurelian Nicolae, Chief Hardware Engineer, compliance@whoop.com , 6176701074
Technical ContactAurelian Nicolae, Whoop Inc., compliance@whoop.com , 16176701074
Test FirmSteven Thompson, UL LLC, steven.d.thompson@ul.com , 919 549 1430
TCB EmailLST.FRE.CertNotice@ul.com
TCB ScopeA1: Low Power Transmitters below 1 GHz (except Spread Spectrum), Unintentional Radiators, EAS (Part 11) & Consumer ISM devices
Short-Term ConfidentialityYes
Short-Term Confidentiality Date11/01/2025
Long-Term ConfidentialityYes
Grant DeferralNo
Modular EquipmentDoes not apply
Composite DeviceYes
Composite PartNo
Cognitive RadioNo
Authorization WaiverNo
Authorization Waiver ApprovedNo
Section 5301 CertificationYes
Related OET Knowledge DataBase InquiryNo
Grant CommentsThe highest reported SAR (10-g extremity exposure) and simultaneous transmission are <0.1 W/kg (10g) and <0.1 W/kg (10g) respectively.

Applications

Application IDDatePurpose
lzcDRZdahtFOJ/Sgzui32w==2025-05-08Original Equipment
kZraOvddmOKFJmDswxWfYw==2025-05-08Original Equipment

Equipment Authorization

FrequencyOutput
13.56 MHz
2402-2480 MHz0.0025800

Grants

TCB Grant - Application lzcDRZdahtFOJ/Sgzui32w==

TCB GRANT OF EQUIPMENT
AUTHORIZATION		 TCB
Certification
Issued Under the Authority of the
Federal Communications Commission
By:

  UL Verification Services Inc.
47173 Benicia Street
Fremont, CA 94538
Date of Grant: 05/08/2025

Application Dated: 05/08/2025
Whoop Inc.
One Kenmore Square
Suite 601
Boston, MA 02215
 
Attention: Aurelian Nicolae , Chief Hardware Engineer

NOT TRANSFERABLE
EQUIPMENT AUTHORIZATION is hereby issued to the named GRANTEE, and is VALID ONLY for the equipment identified hereon for use under the Commission's Rules and Regulations listed below.
 
FCC IDENTIFIER:  2AJ2X-WS50
Name of Grantee:  Whoop Inc.
Equipment Class: Part 15 Low Power Communication Device Transmitter
Notes: Sensor Device
Grant Notes  FCC Rule Parts Frequency
Range (MHZ) 		Output
Watts 		Frequency
Tolerance 		Emission
Designator
15C 13.56  -  13.56  

The highest reported SAR (10-g extremity exposure) and simultaneous transmission are <0.1 W/kg (10g) and <0.1 W/kg (10g) respectively.

TCB Grant - Application kZraOvddmOKFJmDswxWfYw==

TCB GRANT OF EQUIPMENT
AUTHORIZATION		 TCB
Certification
Issued Under the Authority of the
Federal Communications Commission
By:

  UL Verification Services Inc.
47173 Benicia Street
Fremont, CA 94538
Date of Grant: 05/08/2025

Application Dated: 05/08/2025
Whoop Inc.
One Kenmore Square
Suite 601
Boston, MA 02215
 
Attention: Aurelian Nicolae , Chief Hardware Engineer

NOT TRANSFERABLE
EQUIPMENT AUTHORIZATION is hereby issued to the named GRANTEE, and is VALID ONLY for the equipment identified hereon for use under the Commission's Rules and Regulations listed below.
 
FCC IDENTIFIER:  2AJ2X-WS50
Name of Grantee:  Whoop Inc.
Equipment Class: Digital Transmission System
Notes: Sensor Device
Grant Notes  FCC Rule Parts Frequency
Range (MHZ) 		Output
Watts 		Frequency
Tolerance 		Emission
Designator
15C 2402.0  -  2480.0 0.00258  

Output power listed is peak conducted. The highest reported SAR (10-g extremity exposure) and simultaneous transmission are <0.1 W/kg (10g) and <0.1 W/kg (10g) respectively.