Octopus card
Smart card
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The Octopus card is a reusable contactless stored value smart card for making electronic payments in online or offline systems in Hong Kong. Wikipedia
Auto recharge: Automatic Add Value Service (through credit cards)
Currency: HKD (HK$3,000 maximum load)
Launched: 1 September 1997; 26 years ago
Location: Hong Kong
Operator: Octopus Cards Limited
Stored-value: Pay as you go
Technology: FeliCa; NFC