Cover - USD ($) $ in Millions	12 Months Ended
Cover - USD ($) $ in Millions	Dec. 31, 2025	Mar. 26, 2026	Jun. 30, 2025
Entity Information [Line Items]
Document Type	10-K/A
Document Annual Report	true
Document Period End Date	Dec. 31, 2025
Current Fiscal Year End Date	--12-31
Document Transition Report	false
Entity File Number	001-39598
Entity Registrant Name	XOS, INC.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	98-1550505
Entity Address, Address Line One	3550 Tyburn Street
Entity Address, City or Town	Los Angeles
Entity Address, State or Province	CA
Entity Address, Postal Zip Code	90065
City Area Code	818
Local Phone Number	316-1890
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	false
ICFR Auditor Attestation Flag	false
Document Financial Statement Error Correction [Flag]	false
Entity Shell Company	false
Entity Public Float			$ 13.0
Entity Common Stock, Shares Outstanding		11,982,627
Documents Incorporated by Reference	None.
Amendment Description	EXPLANATORY NOTEThis Amendment No. 1 on Form 10-K/A (this “Amendment No. 1”) amends Xos, Inc.’s Annual Report on Form 10-K for the fiscal year ended December 31, 2025 that was originally filed with the Securities and Exchange Commission (the “SEC”) on March 30, 2025 (the “Original Form 10-K” and, as amended hereby, the “Report”). This Amendment No. 1 is being filed solely to:•include language related to critical audit matters in the Report of Independent Registered Public Accounting Firm issued by our auditors and included in Part II, Item 8 of the Original Form 10-K that was inadvertently omitted from the Original Form 10-K; •include the information omitted from Part III, Items 10, 11, 12, 13 and 14 of the Original Form 10-K in reliance upon General Instruction G(3) to Form 10-K; and•delete the reference on the cover of the Original Form 10-K to the incorporation by reference of portions of our proxy statement into Part III of the Original Form 10-K.In addition, we have filed new certifications of our principal executive officer and principal financial officer under Sections 302 and 906 of the Sarbanes-Oxley Act of 2002 as exhibits to this Amendment No. 1 under Item 15 of Part IV hereof, pursuant to Rule 12b-15 under the Securities Exchange Act of 1934, as amended, and a new consent of our Independent Registered Public Accounting Firm as an exhibit to this Amendment No. 1 under Item 15 for Part IV hereof.No other changes have been made to the Original Form 10-K. Accordingly, this Amendment No. 1 should be read in conjunction with the Original Form 10-K.
Amendment Flag	true
Entity Central Index Key	0001819493
Document Fiscal Year Focus	2025
Document Fiscal Period Focus	FY
Common Stock, $0.0001 par value per share
Entity Information [Line Items]
Title of 12(b) Security	Common Stock, $0.0001 par value per share
Trading Symbol	XOS
Security Exchange Name	NASDAQ
Warrants, every thirty warrants exercisable for one share of Common Stock at an exercise price of $345.00 per share
Entity Information [Line Items]
Title of 12(b) Security	Warrants, every thirty warrants exercisable for one share of Common Stock at an exercise price of $345.00 per share
Trading Symbol	XOSWW
Security Exchange Name	NASDAQ

Xos, Inc. 10-K/A