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If you’ve decided you want a Trezor — open-source firmware, a real secure element, a Bitcoin-only option — the only question left is which one. There are three in the current lineup, from $79 to $249, and the honest answer surprises most people: they are equally secure. Moving up the range buys nicer hardware, not safer key storage. So this decision is about convenience and budget, not about how protected your Bitcoin is.
Here’s the short version, then the detail.
The short answer
- Most people: the Trezor Safe 3 at $79. Same security model as the flagship. The cheapest honest way to get your coins off an exchange and into open-source, secure-element self-custody.
- Want a nicer daily driver: the Safe 5 at $169. Adds a color haptic touchscreen that makes address verification and PIN entry more pleasant. The comfortable middle of the line.
- Need iOS Bluetooth or the flagship: the Safe 7 at $249. Adds a second secure element, Bluetooth with native iPhone signing, a fingerprint sensor, and a battery.
If your goal is simply “get my Bitcoin into cold storage safely,” stop at the Safe 3. The extra $90 or $170 buys ergonomics, not security.
Spec comparison
| Trezor Safe 3 | Trezor Safe 5 | Trezor Safe 7 | |
|---|---|---|---|
| Price (USD) | $79 | $169 | $249 |
| Secure element(s) | One EAL6+ | One EAL6+ | Two EAL6+ |
| Screen | Monochrome, 2 buttons | Color haptic touchscreen | Higher-res color touchscreen |
| Wireless | None (USB-C) | None (USB-C) | Bluetooth + USB-C |
| Native iOS signing | Via USB-C adapter | Via USB-C adapter | Yes, over Bluetooth |
| Fingerprint | No | No | Yes |
| Battery | None | None | LiFePO4 |
| Open-source firmware | Yes | Yes | Yes |
| Bitcoin-only firmware option | Yes | Yes | Yes |
| SLIP-39 Shamir backup | Yes | Yes | Yes |
| PIN + passphrase | Yes | Yes | Yes |
Start with what’s identical — because it’s the important part
Every device in this table protects your keys the same way:
- An EAL6+ secure element — the same class of tamper-resistant chip used in passports — stores the seed and resists the physical-extraction attacks that hit pre-secure-element Trezors. (More on that history: is Trezor safe?.)
- Open-source firmware you or anyone can audit at github.com/trezor/trezor-firmware, with a Bitcoin-only variant on all three.
- SLIP-39 Shamir backup for splitting your recovery into multiple shares.
- PIN + passphrase, and the same guided Trezor Suite setup.
- The same anti-tamper packaging and ship-without-firmware supply-chain integrity.
That’s the whole security story, and it’s the same whether you spend $79 or $249. Anyone telling you the $79 device is “less secure” is confusing convenience features for protection.
What you actually pay more for
Safe 5 (+$90 over the Safe 3): the touchscreen. The Safe 3’s two-button, monochrome interface works fine — you scroll and confirm with buttons. The Safe 5 replaces it with a full-color haptic touchscreen, which makes verifying a long bech32 address and entering a PIN noticeably more comfortable. If you’ll use the device often, the touchscreen is a real quality-of-life upgrade. If you’ll set it up once and check it occasionally, the Safe 3’s buttons are perfectly serviceable.
Safe 7 (+$80 over the Safe 5): wireless, redundancy, and extras. A second EAL6+ secure element (defense-in-depth against physical extraction), Bluetooth with native iPhone signing (no OTG adapter), a fingerprint sensor for unlock, and a LiFePO4 battery. The headline reason to choose it is iOS Bluetooth signing; the dual secure element is a genuine but niche upgrade for higher-value threat models. The trade-off is that Bluetooth adds a wireless attack surface the Safe 3 and Safe 5 don’t have — we break that decision down in the dedicated Safe 5 vs Safe 7 head-to-head.
Pick by who you are
Buy the Safe 3 ($79) if: you’re new to hardware wallets, you’re moving a first stack off an exchange, or you simply want the cheapest device that doesn’t compromise on the security model. This is the right answer for most readers — and the how-much-Bitcoin-before-a-hardware-wallet math points here for anyone above roughly a few hundred dollars of BTC.
Buy the Safe 5 ($169) if: the device will be a frequent daily driver and the color touchscreen will genuinely make you use it more confidently. It’s the comfortable, no-regrets middle.
Buy the Safe 7 ($249) if: you sign on an iPhone and want Bluetooth without an adapter, or you specifically want the dual-secure-element flagship and will manage the wireless surface by leaving Bluetooth off when idle.
Verdict
The most common mistake in this decision is overpaying out of a vague sense that “more expensive = more secure.” It isn’t. The Trezor Safe 3 stores your keys with the same EAL6+ secure element and the same open-source, Bitcoin-only firmware as the $249 flagship. Buy the Safe 3 unless you have a concrete reason to want the touchscreen (Safe 5) or iOS Bluetooth and dual secure elements (Safe 7). And whatever you save by not over-buying the device, spend a fraction of it on a steel seed backup — that, not the model number, is where the next real security gain is.
Read next:
- Trezor Safe 5 vs Safe 7 — the head-to-head — if you’re deciding between the two pricier models
- Is Trezor safe? Has it ever been hacked? — the security record behind all three
- Trezor Safe 3 — full review — the $79 value pick, reviewed
- Trezor Safe 5 — full review
- Trezor Safe 7 — full review
- Hardware wallet 2026 buying guide — the framework
- The truth about “Trezor discount codes” — before you search for a coupon
Sources:
- Trezor Safe 3 product page: trezor.io/trezor-safe-3
- Trezor Safe 5 product page: trezor.io/trezor-safe-5
- Trezor Safe 7 product page: trezor.io/trezor-safe-7
- Secure elements in Trezor Safe devices: trezor.io/learn/security-privacy/how-trezor-keeps-you-safe/secure-elements-in-trezor-safe-devices
- Trezor firmware source: github.com/trezor/trezor-firmware
- SLIP-39 Shamir backup spec: github.com/satoshilabs/slips/blob/master/slip-0039.md