{"product_id":"onekey-classic-1s-pure-btc-only","title":"OneKey Classic 1S Pure BTC-Only","description":"\u003cp\u003eThe \u003cb\u003eOneKey Classic 1S Pure BTC-Only\u003c\/b\u003e is the battery-free Classic 1S Pure, shipped with Bitcoin-only firmware. Everything that is not Bitcoin is hidden, so there is less on the device to think about and less code in the way.\u003c\/p\u003e\n\n\u003ch3\u003eBitcoin-only, but not permanently\u003c\/h3\u003e\n\u003cp\u003eOneKey's own wording is that it \u003cb\u003eships with the BTC-only system and can be switched to the multi-coin system at any time\u003c\/b\u003e. The change is a mode toggle in the app's device management, not a firmware reflash, and it can be reversed the same way.\u003c\/p\u003e\n\u003cp\u003eSo you get a Bitcoin-focused device out of the box without locking yourself out of everything else later.\u003c\/p\u003e\n\n\u003ch3\u003eBattery-free\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eNo battery\u003c\/b\u003e — nothing to charge, nothing to degrade\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003e18.3 g\u003c\/b\u003e, 86 x 52 x 5.2 mm card format\u003c\/li\u003e\n\u003cli\u003ePowered over USB-C when connected\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSecurity\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eSecure element: THD89\u003c\/b\u003e, \u003cb\u003eEMVCo certified\u003c\/b\u003e and \u003cb\u003eCC EAL6+\u003c\/b\u003e\n\u003c\/li\u003e\n\u003cli\u003eDesigned to resist physical tampering and side-channel attacks\u003c\/li\u003e\n\u003cli\u003ePIN and passphrase protection\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eOpen source you can actually check\u003c\/h3\u003e\n\u003cp\u003eOneKey publish firmware and apps as open source with \u003cb\u003ereproducible builds\u003c\/b\u003e, so anyone can compile the code and confirm it matches what shipped on the device. Independent third-party security audits back it up.\u003c\/p\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1.54-inch monochrome OLED, 128 x 64, with an anti-glare polarizer\u003c\/li\u003e\n\u003cli\u003eUSB-C\u003c\/li\u003e\n\u003cli\u003e86 x 52 x 5.2 mm, \u003cb\u003e18.3 g\u003c\/b\u003e\n\u003c\/li\u003e\n\u003cli\u003eHigh-strength PC + ABS composite\u003c\/li\u003e\n\u003cli\u003eOperating range −20°C to 55°C\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eiOS 14 or later, Android 8 or later\u003c\/li\u003e\n\u003cli\u003eWindows 10+, macOS 10.11+, Linux\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eBackup\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e12 or 24-word recovery phrase\u003c\/li\u003e\n\u003cli\u003eOptional passphrase for hidden wallets\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eIn the box\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eOneKey Classic 1S Pure\u003c\/li\u003e\n\u003cli\u003eUSB-C cable\u003c\/li\u003e\n\u003cli\u003e3 recovery sheets\u003c\/li\u003e\n\u003cli\u003eSticker\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCommon questions\u003c\/h3\u003e\n\u003cp\u003e\u003cb\u003eIs this different hardware from the standard Pure?\u003c\/b\u003e\u003cbr\u003eThe published specifications are identical — same chip, certification, screen, dimensions, weight and materials. The difference is which system it ships with.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eCan I switch it to multi-coin later?\u003c\/b\u003e\u003cbr\u003eYes. OneKey state it can be switched at any time, through device management in the app, and switched back the same way.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eWhy choose Bitcoin-only?\u003c\/b\u003e\u003cbr\u003eFewer assets on screen and a narrower feature set. If you only hold Bitcoin, there is nothing else to navigate past.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eDoes it need charging?\u003c\/b\u003e\u003cbr\u003eNo. It has no battery and takes power from the USB-C connection.\u003c\/p\u003e\n\n\u003ch3\u003eBuying from SIAMBC\u003c\/h3\u003e\n\u003cp\u003eSIAMBC is Thailand's authorized OneKey distributor, with a physical store in Bangkok. Every unit is new, sealed and sourced directly. Support is available in Thai and English.\u003c\/p\u003e\n\n\u003ch3\u003eONE RULE TO REMEMBER\u003c\/h3\u003e\n\u003cp\u003eAnyone who asks for your recovery phrase is a scammer. No exceptions.\u003c\/p\u003e\n\u003cp\u003eNeither SIAMBC nor OneKey will ever ask for it, whatever reason is given — warranty claims, identity verification, system updates or account recovery. Those words are the key to your funds. Whoever has them owns your crypto, and it can never be recovered.\u003c\/p\u003e\n\u003ch3\u003eWhere will you keep your recovery phrase?\u003c\/h3\u003e\n\u003cp\u003eYour wallet comes with a paper card to write the words on. That card is one house fire, one flood or one termite nest away from gone — and if the words are gone, so is the crypto. Putting them into steel removes all three risks at once.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/csafe-lite\"\u003e\u003cb\u003eCryptoSafe Lite\u003c\/b\u003e\u003c\/a\u003e — from ฿299. Stamp or engrave the words yourself; sets are available with the tools included.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/csafe-bank\"\u003e\u003cb\u003eCryptoSafe Bank\u003c\/b\u003e\u003c\/a\u003e — ฿1,290. Industrial grade, with three inner plates and a punch tool in the box.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/csafe-pro\"\u003e\u003cb\u003eCryptoSafe Pro\u003c\/b\u003e\u003c\/a\u003e — ฿1,790. Pre-engraved steel tiles slide into place, so there is nothing to stamp. Holds up to 96 characters.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/csafe-capsule\"\u003e\u003cb\u003eCryptoSafe Capsule\u003c\/b\u003e\u003c\/a\u003e — ฿1,990. A sealed stainless capsule that also resists physical impact.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cb\u003eSave 20% on any CryptoSafe when you buy it with a hardware wallet.\u003c\/b\u003e The discount is applied automatically in your cart — there is no code to enter.\u003c\/p\u003e","brand":"OneKey","offers":[{"title":"Default Title","offer_id":49941671510273,"sku":"OKPUREBTC","price":2990.0,"currency_code":"THB","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/2056\/3969\/files\/onekey_classic_1s_pure_btc_only_2.jpg?v=1785580356","url":"https:\/\/siambc.co.th\/products\/onekey-classic-1s-pure-btc-only","provider":"SIAMBC","version":"1.0","type":"link"}