Foundation Passport vs Ledger Flex

Comparing: two wallets
Decided by: Editorial rating
Last reviewed: 2026-08-26

Bitcoin-only hardware from a US company, now sold as the $349 Passport Prime: keys, two factor codes, security keys and encrypted storage in one device.

Ledger Flex4.0

The Ledger to buy if you want a touchscreen: $249, the same certified chip as the Stax, and more screen pixels than it.

Verdict: Foundation Passport

Foundation Passport rates higher on our rubric: 4.3 against 4.0 for Ledger Flex.

Criterion: Editorial rating
Foundation Passport: 4.3
Ledger Flex: 4.0

Foundation Passport and Ledger Flex, fact by fact

Every row is from the two reviews as of their review dates, with sources on each. A check marks the side a decidable criterion favours; rows without one are information, not a score.

Foundation Passport and Ledger Flex compared fact by fact from their reviews; a check marks the side a decidable criterion favours.
Fact	Foundation Passport	Ledger Flex
Editorial rating	4.3 (favoured on this row)	4.0
Status	Available	Available
Made by	Foundation Devices	Ledger
Price	$349	$249
Who holds the keys	self-custodial, keys held on dedicated hardware and isolated from sandboxed apps by the KeyOS microkernel	self-custodial, keys held in a CC EAL6+ certified secure element chip
Bitcoin-only	Yes	No
Runs on	iOS, Android	iOS, Android, Windows, macOS, Linux
Screen	Not stated	2.8 inch flat E Ink touchscreen, 16 grayscale, 480 x 600 pixels, Gorilla Glass with an anti-glare coating
Connectivity	QuantumLink encrypted Bluetooth through a dedicated chip, plus NFC and USB for security key use; setup and updates run through the Envoy app	USB-C, Bluetooth and NFC, for iOS, Android and desktop computers
Released	Not stated	July 2024
Countries on the maker's list	No published list	218
Last reviewed	2026-08-26	2026-08-26

Pros and cons, side by side

Foundation Passport

What works

Bitcoin only, with open source apps and a published independent audit quote
KeyOS sandboxes apps so a compromised app cannot reach the master keys
Bluetooth runs through a dedicated chip rather than the processor holding your secrets
Envoy is distributed on F-Droid as well as the App Store and Google Play
Assembled in the USA, which matters if supply chain provenance is part of your threat model

What to watch

$349 is well above most bitcoin-only signers
Passport Core, the cheaper earlier model, has been discontinued
No reachable country list: the terms name a Shipping Policy that is not published anywhere, and Foundation may refuse an order over export or sanctions concerns
A smaller company with a shorter public track record than Ledger, Trezor or Coinkite

Ledger Flex

What works

A 2.8 inch E Ink touchscreen at 480 x 600 pixels, more pixels than the larger and dearer Stax screen
Same ST33K1M5 secure element, certified to CC EAL6+, as the $399 Stax
USB-C, Bluetooth and NFC, so it works with an iPhone as well as a desktop
A Ledger Recovery Key is included in the box, so your seed backup is not only on paper

What to watch

$249 is more than four times the $59 Nano S Plus for the same certified secure element
Closed source firmware, unlike Trezor and BitBox
Plastic body with a Gorilla Glass front, where the Stax uses aluminum with stacking magnets

Frequently asked questions

Is Foundation Passport or Ledger Flex better?

Foundation Passport rates higher on our rubric: 4.3 against 4.0 for Ledger Flex. The rating follows the product rubric published on our about page; the rows above set custody, price and platforms side by side so you can check it.

Which is cheaper, Foundation Passport or Ledger Flex?

Ledger Flex, at $249 against $349, on each maker's own store price as of the review date.

Is Foundation Passport or Ledger Flex bitcoin-only?

Foundation Passport is bitcoin-only; Ledger Flex supports other assets too. Bitcoin plus more than 500 assets in the Ledger Wallet app, and thousands more through third party wallets

The full reviews: Foundation Passport and Ledger Flex, each with its sources, and every wallet we review.

More comparisons

Every other head-to-head Foundation Passport or Ledger Flex appears in.