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  3. eWallet vs Coldcard Mk1

Black Arrow Software eWallet vs Coinkite Coldcard Mk1

What eWallet does better (0) and where Coldcard Mk1 wins (1) — every spec side by side.

Black Arrow Software eWallet
Black Arrow SoftwareeWallet
0 advantages≈ €30
vs
Coinkite Coldcard Mk1
Coinkite · 2018Coldcard Mk1
1 advantage≈ €45
3.3Open source7.4

Why is eWallet better than Coldcard Mk1?

eWallet has no measurable advantages in this pair.

Why is Coldcard Mk1 better than eWallet?

  1. Source code availableNo · eWallet: Yes
Specifications

Side by side

Firmware & open source
Open-source firmwareNoNo
Source code availableNoYes
Reproducible builds—No
Upgradable firmware—Yes
Design
Weight7 g—
Length4.5 mm—
Width2.3 mm—
Thickness0.6 mm—
To compare: 0up to 4 models
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