COVER - shares	9 Months Ended
	Sep. 30, 2022	Nov. 08, 2022
Cover [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Quarterly Report	true
Document Transition Report	false
Document Period End Date	Sep. 30, 2022
Document Fiscal Year Focus	2022
Document Fiscal Period Focus	Q3
Current Fiscal Year End Date	--12-31
Entity Central Index Key	0001837014
Entity File Number	001-39991
Entity Registrant Name	SMARTRENT, INC.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	85-4218526
Entity Address, Address Line One	8665 E. Hartford Drive
Entity Address, Address Line Two	Suite 200
Entity Address, City or Town	Scottsdale
Entity Address, State or Province	AZ
Entity Address, Postal Zip Code	85255
City Area Code	844
Local Phone Number	479-1555
Title of 12(b) Security	Class A Common Stock, $0.0001 par value
Trading Symbol	SMRT
Security Exchange Name	NYSE
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	true
Entity Ex Transition Period	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		198,348,473