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  3. KISS Signer DIY vs QUANTUM

DIYbitcoin KISS Signer DIY vs SecurityArts QUANTUM

What KISS Signer DIY does better (1) and where QUANTUM wins (0) — every spec side by side.

DIYbitcoin KISS Signer DIY
DIYbitcoin · 2026KISS Signer DIY
1 advantage
vs
SecurityArts QUANTUM
SecurityArtsQUANTUM
0 advantages≈ €45
7.4Open source3.3

Why is KISS Signer DIY better than QUANTUM?

  1. Source code availableYes · QUANTUM: No

Why is QUANTUM better than KISS Signer DIY?

QUANTUM has no measurable advantages in this pair.

Specifications

Side by side

DIYbitcoin KISS Signer DIYDIYbitcoin KISS Signer DIY
SecurityArts QUANTUMSecurityArts QUANTUM≈ €45
Firmware & open source
Open-source firmwareNoNo
Source code availableYesNo
Reproducible buildsNo—
Upgradable firmwareYes—
Design
Weight—12 g
Length—65 mm
Width—25 mm
Thickness—8 mm

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