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  3. KISS Signer DIY vs Blue

DIYbitcoin KISS Signer DIY vs Ledger Blue

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

DIYbitcoin KISS Signer DIY
DIYbitcoin · 2026KISS Signer DIY
1 advantage
vs
Ledger Blue
LedgerBlue
0 advantages≈ €210
7.4Open source3.3

Why is KISS Signer DIY better than Blue?

  1. Source code availableYes · Blue: No

Why is Blue better than KISS Signer DIY?

Blue has no measurable advantages in this pair.

Specifications

Side by side

DIYbitcoin KISS Signer DIYDIYbitcoin KISS Signer DIY
Ledger BlueLedger Blue≈ €210
Firmware & open source
Open-source firmwareNoNo
Source code availableYesNo
Reproducible buildsNo—
Upgradable firmwareYes—
Design
Weight—90 g
Length—97 mm
Width—68 mm
Thickness—10 mm

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