Compare hardware models and compatibility
Device interfaces, supported workflows and recovery responsibilities.
A hardware wallet controls keys; it is not an exchange account or a promise that losses are impossible. Start with the exact model, operating system, asset and signing workflow.
Four models, two source-based comparisons
Prices are dated USD observations from October 25, not current offers. We have not handled these devices or tested recovery.
| Model | Observed price | Documented distinction |
|---|---|---|
| Trezor Safe 3 | $59 | 0.96-inch monochrome display, buttons |
| Trezor Safe 5 | $129 | 1.54-inch colour touch display, haptics |
| Ledger Flex | $249 | 2.8-inch flat E Ink |
| Ledger Stax | $399 | 3.7-inch curved E Ink; Qi and stacking |
Verify the complete connection
A phone’s operating system support does not imply identical signing support on every model or app.
| Check | Why it changes selection |
|---|---|
| OS and connection | USB, Bluetooth and mobile signing differ by model |
| Asset + network | Support the exact chain, not just a ticker |
| Companion app | A supported app can still have separate permissions |
| Backup variant | Recovery workflow and compatible backup format matter |
| Trusted display | Review recipient and transaction on the device itself |
See the workflow
Watch Trezor set up a Safe 3: seal check, firmware, backup and PIN →
Trezor's own walkthrough of a new Safe 3, from checking the holographic seal to installing firmware in Trezor Suite, writing down the backup words and choosing a PIN.
Uploaded 2023-12-13 · 6 minOfficial Trezor demonstrationWatch Trezor set up a Safe 5: firmware, 20-word backup and PIN →
Trezor's step-by-step Safe 5 setup in Trezor Suite: seal check, firmware install, authenticity check, a single-share 20-word backup, PIN and coin selection.
Uploaded 2024-07-23 · 7 minContinue with the detailed evidence
Trezor Safe 3 vs Safe 5: screen, compatibility and recovery
A dated model comparison from official specifications: two-button Safe 3 versus touchscreen Safe 5, with supported-system and backup limits. No device test or security audit is claimed.
Ledger Flex vs Stax: screen, price and custody tradeoffs
A source-based comparison of the $249 Flex and $399 Stax prices cited by Ledger, their E Ink screens and charging differences. Model compatibility and recovery remain separate checks.
Kraken fees: instant purchases versus Pro spot
The reviewed schedule lists instant trading fees, Pro tiers, spread and funding separately. Here is how to put them on the same basis.
Sources and scope
Source provenance and retrieval dates
Dated product documentation underlying the tables above
Trezor Safe3 — official source ↗
Last successful source check: 2026-10-25Evidence origin: direct public-document read · Current evidence status: verified
Trezor Safe5 — official source ↗
Last successful source check: 2026-10-25Evidence origin: direct public-document read · Current evidence status: verified
Ledger official Flex versus Stax model comparison ↗
Last successful source check: 2026-10-25Evidence origin: direct public-document read · Current evidence status: verified
Ledger official device setup ↗
Last successful source check: 2026-10-25Evidence origin: direct public-document read · Current evidence status: verified
Published documentation; private account, paid performance and current checkout are not independently tested.
Research and examples use the stated snapshot, not live quotes. We have not tested private accounts, paid software delivery or hardware recovery.