Prepayments and other current assets - Additional Information (Details) - CNY (¥) ¥ in Thousands	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Prepayments and other current assets, net
Allowance for credit losses recorded	¥ 11,760	¥ 18,102	¥ 154

The amount of allowance of prepayments and other current assets for credit losses.

No definition available.

Name:	rlx_AllowanceOfPrepaymentsAndOtherCurrentAssetsForCreditLosses
Namespace Prefix:	rlx_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant