---
title: "SeedSigner · Bitsaga"
description: "Every SeedSigner model compared side by side, with a browser simulator, a firmware verifier and a signet to rehearse on before you spend a cent."
url: "https://bitsaga.be/shop/seedsigner"
language: "en"
---


> Every SeedSigner model compared side by side, with a browser simulator, a firmware verifier and a signet to rehearse on before you spend a cent.

# Every SeedSigner model, compared

## SeedSigner Plus

€150.00

[View](https://bitsaga.be/shop/product/seedsigner-plus)

## Seedsigner premium v2

€180.00 (starting price)

[View](https://bitsaga.be/shop/product/seedsigner)

## Seedsigner+ Smartcard

€200.00 (starting price)

[View](https://bitsaga.be/shop/product/seedsigner-smartcard)

## SeedSigner+ Premium

€225.00 (starting price)

[View](https://bitsaga.be/shop/product/seedsigner-plus-premium)

## Seedsigner Pro bundle

€300.00 (starting price)

[View](https://bitsaga.be/shop/product/seedsigner-pro-bundle)

## The two firmwares

### SeedSigner

The SeedSigner project, MIT licensed. Best on: SeedSigner Plus, SeedSigner+ Premium, Seedsigner premium v2, Seedsigner Pro bundle.

Your seed goes in as a SeedQR you scan with the camera, or you type the words in by hand.

### ShieldSigner

CryptoGuide's smartcard fork of SeedSigner, MIT licensed. Best on: Seedsigner+ Smartcard.

Your seed loads off a PIN protected Satochip SeedKeeper card. Scanning a SeedQR still works, so you keep both routes.

Everything the stock firmware does, and a long list on top of it: the whole smartcard suite, SLIP39, encrypted QR codes, and more entropy checking. The table below is the full comparison.

## Layer one, the device

| | SeedSigner Plus | Seedsigner premium v2 | Seedsigner+ Smartcard | SeedSigner+ Premium | Seedsigner Pro bundle |
| --- | --- | --- | --- | --- | --- |
| **Best firmware for it** | SeedSigner | SeedSigner | ShieldSigner | SeedSigner | SeedSigner |
| **Core board** | Raspberry Pi Zero 1.3 | Raspberry Pi Zero 1.3 | Raspberry Pi Zero 1.3 | Raspberry Pi Zero 1.3 | Raspberry Pi Zero 1.3 |
| **Screen** | 2.8 inch IPS, 240x320 | Waveshare 1.3 inch LCD hat | 2.8 inch IPS, 240x320 | 2.8 inch IPS, 240x320 | Waveshare 1.3 inch LCD hat |
| **Controls** | DPAD style buttons | Aluminium thumbstick and buttons | DPAD style buttons | DPAD style buttons | Aluminium thumbstick and buttons |
| **Camera** | ZeroCam | ZeroCam, behind a glass cover | ZeroCam | ZeroCam mini | ZeroCam, behind a glass cover |
| **Enclosure** | 3D printed shell | CNC milled aluminium | 3D printed shell | CNC machined aluminium | CNC milled aluminium |
| **Colour** | One version | Leave a preference in the order notes | Black or orange | Black, or orange and silver | Black only |
| **Power port** | USB-C, power only | Micro USB | USB-C, power only | USB-C, power only | Micro USB, braided cable in the box |
| **Spring loaded microSD slot** | Yes | Yes | Yes | Yes | Yes |
| **Smartcard reader** | No | No | Yes, a smartcard hat and a Satochip SeedKeeper card | No | No |
| **Wifi or bluetooth** | None, on any of them | None, on any of them | None, on any of them | None, on any of them | None, on any of them |
| **Battery** | None, it runs off the cable | None, it runs off the cable | None, it runs off the cable | None, it runs off the cable | None, a power bank is in the box |

## Layer two, the firmware

ShieldSigner does everything SeedSigner does. All of it. It is a fork, not an alternative, and nothing was taken out.

| | SeedSigner | ShieldSigner |
| --- | --- | --- |
| **Getting a seed onto it** | | |
| Calculate the final word of a 12 or 24 word seed phrase | Yes | Yes |
| Create a seed from dice rolls, 99 for 24 words or 50 for 12 | Yes | Yes |
| Create a seed from image entropy off the camera | Yes | Yes |
| Guided transcription of a seed to SeedQR, and reading one back | Yes | Yes |
| BIP39 passphrase, the twenty-fifth word | Yes | Yes |
| Seed word lengths | 12 or 24 | 12, 15, 18, 21 or 24 |
| Load a seed off a Satochip SeedKeeper card | No | Yes |
| Load a passphrase, or seed and passphrase together, off a card | No | Yes |
| SLIP39 shares: create, import, extend and reconstruct | No | Yes |
| BIP85 child seeds | Derive them | Derive and load them |
| Encrypted QR codes, Krux compatible | No | Yes |
| Passphrase QR, plaintext QR export, and a TextQR tool | No | Yes |
| Split passphrase and encryption key across two QR codes | No | Yes |
| **Signing and wallets** | | |
| PSBT compliant, scan and parse from animated QR codes | Yes | Yes |
| Sign transactions and hand back xpubs as animated QR codes | Yes | Yes |
| Native segwit multisig xpub generation | Yes | Yes |
| Address explorer for single sig and multisig | Yes | Yes |
| On-demand receive address verification | Yes | Yes |
| Custom user-defined derivation paths | Yes | Yes |
| Electrum segwit seed phrases, with limitations | Yes | Yes |
| Bitcoin mainnet and testnet | Yes | Yes |
| Save and load multisig descriptors on a card | No | Yes |
| Verify a wallet xpub export | No | Yes |
| Sign a transaction on the card itself, and verify a PSBT against it | No | Yes |
| Sign a message | No | Yes |
| WIF and BIP38 key signing | No | Yes, and off by default |
| **The cards themselves** | | |
| Card readers it speaks to | None | Smartcard hat over UART, USB CCID and PCSC, PN532 over NFC, USB Phoenix |
| Initialise a card, change its PIN, label it, set its NFC policy | No | Yes |
| Factory reset a card, read its info, check it is genuine | No | Yes |
| Satochip two factor | No | Yes |
| Store any secret on a card, and read it back as text or a QR code | No | Yes |
| **Entropy and housekeeping** | | |
| Live preview while generating from image entropy | Yes | Yes |
| User-configurable QR display density | Yes | Yes |
| Stateless: memory wiped the moment power is removed | Yes | Yes |
| microSD removable after boot, so nothing secret can be written to it | Yes | Yes |
| Shannon entropy checks on dice and camera input | No | Yes |
| Hardware RNG mixed into camera entropy, with a quality readout | No | Yes |
| Optional wipe timer | No | Yes, 30 minutes |
| GPG signature and SHA256 manifest checking on the device | No | Yes |
| microSD flashing and verification tools on the device | No | Yes |
| **What you are trusting** | | |
| Who publishes it | The SeedSigner project | CryptoGuide, as 3rdIteration |
| Licence | MIT | MIT |
| Maturity, in the project's own words | Stable releases | Beta: "mostly feature complete", with "bugs and tweaks to come" |
| Covered by verify.bitsaga.be | Yes, check a file | Yes, check a file |
| Runs in the browser simulator | Yes, run it now | Yes, run it now |

## What arrives, and what you choose

| | SeedSigner Plus | Seedsigner premium v2 | Seedsigner+ Smartcard | SeedSigner+ Premium | Seedsigner Pro bundle |
| --- | --- | --- | --- | --- | --- |
| **microSD card included** | No | Yes | Yes, 8 GB | Yes, blank | Yes, blank or pre-loaded |
| **Also in the box** | USB-C cable, 25x25 SeedQR cards | Nothing else listed | USB-C cable | USB-C cable, 25x25 SeedQR cards | Faraday box, power bank, demo seed |
| **Try this one in the simulator** | Pick the stock firmware | Pick the stock firmware | The default, smartcard firmware | Pick the stock firmware | Pick the stock firmware |
| **Choices at checkout** | None, one version | Add a steel backup, or take it on its own | Colour, and 1 to 5 SeedKeeper cards | Enclosure colour | Blank or pre-loaded SD card |