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Coldcard Q Wallet by Coinkite

Start at $269

An advanced Bitcoin hardware wallet — fully air-gapped, open-source, and purpose-built for uncompromising security and verifiable self-custody.

01 The Core Strengths of Coldcard Q

Air-gapped signing for security
Full QWERTY keyboard for daily usage
Large display for verification
Secure element + open firmware

02 Why the Coldcard Q wallet matters — from secure Bitcoin storage to true financial sovereignty and freedom.
Our review.

Self-custody isn’t just about holding your keys — it’s about removing unnecessary trust. Most wallets still rely on computers, companion apps, or Bluetooth connections that quietly reintroduce risk. Every cable or update server becomes a potential leak in what should be a sealed vault.

The Coldcard Q breaks that pattern. It’s 100% air-gapped — never plugged in, never paired, never exposed. You move unsigned Bitcoin transactions via microSD or QR codes (PSBT), sign them offline, then broadcast. Nothing leaves the device except your signature — never your keys, never your data.

Its open-source firmware and verifiable supply chain prove one thing: real security demands transparency. No closed APIs, no silent updates, no remote access.

In an ecosystem addicted to convenience, the Coldcard Q turns security into a discipline — something you can hold, verify, and trust.

For anyone serious about long-term Bitcoin storage or daily usage, the Coldcard Q wallet stands as the most secure, verifiable, and sovereign solution available today.

Author

Louis Le Bras

Designer, Engineer & Maximalist

Louis Le Bras Profile

Global Colcard Q Rating

1.2

UX
6.8 / 10
DESIGN
8.7 / 10
CUSTODY
7.0 / 10
SECURITY
10 / 10

Coldcard Q Manufacturer

Founded in 2012, Coinkite is one of the oldest and most respected Bitcoin hardware companies — and one of the very few that never compromised its principles. Based in Canada, the team led by NVK (Rodolfo Novak) has spent more than a decade building tools for sovereignty, not adoption.

Sovereignty doesn’t start with tools. It starts with awareness.

→ Become sovereign
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