Cover Page - shares	9 Months Ended
	Sep. 30, 2021	Nov. 15, 2021
Document Information [Line Items]
Document Type	10-Q
Amendment Flag	false
Document Quarterly Report	true
Document Transition Report	false
Entity Registrant Name	Owlet, Inc.
Entity Central Index Key	0001816708
Entity Filer Category	Non-accelerated Filer
Entity Emerging Growth Company	true
Entity Small Business	true
Document Period End Date	Sep. 30, 2021
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	Q3
Entity Tax Identification Number	85-1615012
Entity Incorporation, State or Country Code	DE
Current Fiscal Year End Date	--12-31
Entity Address, Address Line One	2500 Executive Parkway
Entity Address, Address Line Two	Ste. 500
Entity Address, City or Town	Lehi
Entity Address, State or Province	UT
Entity Address, Postal Zip Code	84043
City Area Code	844
Local Phone Number	334-5330
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity File Number	001-39516
Entity Shell Company	false
Entity Ex Transition Period	false
Entity Common Stock, Shares Outstanding		112,848,462
Common Stock [Member]
Document Information [Line Items]
Title of 12(b) Security	Common stock, $0.0001 par value per share
Trading Symbol	OWLT
Security Exchange Name	NYSE
Warrants [Member]
Document Information [Line Items]
Title of 12(b) Security	Warrants to purchase common stock
Trading Symbol	OWLT WS
Security Exchange Name	NYSE