Crypto hardware wallet comparison Keystone 3 Pro vs Ledger Nano S Plus

Our impressions

Keystone 3 Pro

Ledger Nano S Plus

Pros
  • Supports 3 concurrent seed phrases
  • Convenient user experience with the huge touchscreen
  • Completely autonomous device with long lasting battery lifetime (should be at least 100+ hours in sleep mode when using the device a couple times per day, 18+ months when turned off)
  • Easy process for online Device Verification
  • Great form factor, paired with robust casing protection made out of medal for high portability
  • Future-proof USB-C port
  • Uses the BIP-39 standard, which allows wallet recovery even without hardware
  • Can be used as a secure key, providing additional value outside crypto use-cases
Cons
  • The airgapped QR code paradigm requires a camera on the paired device for certain interactions
  • We love their dedication to open source “EVERY SINGLE LINE” of code they write, including their hardware designs. As long as they do not deliver on their promise, it sadly still is a closed source product.
  • Requires constant USB connection to operate
  • Firmware is closed source
  • App concept (apps need to be installed on the device to support certain coins and features) can be overwhelming, especially for new users, but easy enough to start using the device in no time
Verdict

The Keystone 3 Pro is a device that we can see in a “broad adoption of everyday Crypto financial transactions” scenario. It is a fully air-gapped, autonomous device that has great battery life with an easy to use interface on a convenient 4-inch touchscreen. We would add it to our everyday carry in an instant, in a world where QR code based Crypto payments are available at every shop and venue.

One of the most secure hardware wallets at a very attractive price point. The secure element chip prevents seed phrase extraction attacks, but comes at the price of closed source firmware. Users have to get familiar with the concept of individual apps that have to be manually installed by the user to make the device support the features (i.e. coins, security key functionality, etc.) they need. Installation is not much different than installing smartphone apps from the app store though, so not that difficult after all. As no company is perfect, please make sure to keep updated on Ledger controversies, before making a buying decision. Read more about Ledger controversies

All in all – a very good deal to keep your crypto assets safe with a very high level of security.

Disclaimer: Our impressions are based on a compilation of factors tailored to the average user’s perspective. It is also important to note that whether a feature is a “pro” or “con” can depend on your situation and preferences. What may be an advantage in one scenario could be a challenge in another, and vice versa. Therefore, while reviewing these points, it’s essential to consider your unique requirements and circumstances when making decisions. This list aims to provide an idea of what to anticipate, but it is not the ultimate guide to determining whether something will work for you or not.

Key features

Keystone 3 Pro

Ledger Nano S Plus

Release year

2023

2022

Supported coins

Supports multiple coins

5000+ Coins Supported​ (Bitcoin & EVM chains)

Bitcoin-only Firmware is supposedly in the works, with an estimated release date some time before the next Bitcoin halving
Source: Comment on reddit.com

Supports multiple coins, Bitcoin-only mode available

  • BTC, ETH, ADA, XRP, LTC, XLM, DOGE, DASH, XMR
  • in total 5,000+ coins available
Open source
  • Planned

The Keystone team is working on also open sourcing “EVERY SINGLE LINE of code we’ve written”, including their hardware design, with an announced release date in November 2023. The announcement is worded in a way that it leaves some room of what we really can expect to be released and if they can meet their own release date.
Source: Official blog post concerning Open Source

As the focus of the Keystone 3 series is on 3rd party app compatibility the previous companion software will be faded out in the future.
Source: second hand user comment on reddit.com

  • Companion software

Apps that are installed on Ledger Nano S Plus are open source

Seedphrase support
  • BIP-39 (Mnemonic phrase)
  • SLIP-39 (Shamir backup)
  • Passphrase
  • Multiple seedphrases on one device
  • BIP-39 (Mnemonic phrase)
  • Passphrase
Security protections
  • Secure element
  • On device PIN entry
  • Factory reset with wrong PIN
  • On device passphrase entry
  • On device recovery
  • Fingerprint sensor
  • Air-gapped QR code

Triple Secure Element Chips
USB & MicroSD Card Firmware Upgrading
PCI Anti-tamper Feature

  • Secure element
  • On device PIN entry
  • Factory reset with wrong PIN
  • On device passphrase entry
  • On device recovery
Platform compatibility
  • Windows
  • macOS
  • Linux
  • Android
  • iOS
  • ChromeOS
  • Windows
  • macOS
  • Linux
  • Android
Authentication token
  • FIDO U2F
  • FIDO2 Webauthn

Technical specifications

Keystone 3 Pro

Ledger Nano S Plus

Dimensions

62.44 mm x 103.9 mm x 12.08 mm
2.46 in x 4.09 in x 0.48 in

62.39 mm x 17.40 mm x 8.24 mm
2.46 in x 0.69 in x 0.32 in

Weight

103 g
3.63 oz

21 g
0.74 oz

Display
  • Color
  • Touchscreen

4-Inch LCD TFT Touchscreen
480 x 800 pixels

  • Monochrome
  • OLED

128 x 64 pixels

Connectivity
  • USB-C (limited to charging and firmware updates)
  • Bluetooth
  • USB-C
Storage
  • microSD card
Processor

n/a

ST33K1M5

Safety & Certifications

PCI security standards

Certified CC EAL5+

Housing

Black plastics (PC + ABS)

Brushed stainless steel and plastic (available in black, but also different, exciting color schemes)

Where to buy

Keystone 3 Pro

Ledger Nano S Plus