If you want a secure USB that unlocks from a phone app, pick SecureData SecureUSB BT: it’s repeatedly recommended for phone-app unlocking and FIPS/AES-256 hardware encryption, and the Duo model adds an on-board keypad for dual-factor access. If you prefer Apple Watch unlock or a different form factor, consider the iStorage datAshur BT as a strong alternative.
2SecureData SecureUSB BTBest when you need FIPS-grade, AES-256 hardware encryption unlocked by a smartphone app; Duo adds a keypad for dual-factor access — tradeoff: higher cost and multiple SKUs to compare.40%
3iStorage datAshur BTBest when you want smartphone (and Apple Watch) unlock with strong hardware encryption and a reliable alternative to SecureData — caveat: fewer notes about Duo-style keypad options or broader certification claims.31%
Yes. There are a few USB drives specifically designed to unlock from a smartphone, rather than requiring you to type a PIN on the drive.
My main picks
iStorage datAshur BT 64GB - $61.00 (newegg.com)
iStorage datAshur BT — probably the closest match to what you're describing. It uses Bluetooth and a phone app for unlocking, supports iPhone and Android, and has hardware AES-XTS 256-bit encryption, remote wipe, and automatic locking when you move away from the drive.
64GB is available in the current shopping results.
Unlock can use your phone's Face ID/fingerprint.
The drive doesn't require encryption software on the computer.
Options for hardware-encrypted USB drives that unlock via a smartphone app (using Bluetooth and biometric authentication like FaceID or fingerprint) include the following industry standards:
A hardware-encrypted USB flash drive that uses the Lock app (iOS/Android) for wireless Bluetooth authentication. It features military-grade AES 256-bit encryption, independent user/admin passwords, and biometric unlocking through your phone.
The primary hardware solution matching your requirement is the SecureUSB BT by SecureData . It is a military-grade, hardware-encrypted flash drive that connects and unlocks via a smartphone application using encrypted Bluetooth.[2]
Another option is SecureData SecureUSB BT. It uses a smartphone app over Bluetooth and supports Face ID/Touch ID, remote wipe, inactivity/step-away auto-lock, and AES-XTS 256-bit hardware encryption. The manufacturer says it's FIPS 140-2 Level 3 validated.
If you want something simpler
Nukii is interesting if your phone supports NFC. You open its app, tap the phone against the drive, and it unlocks; unplugging it automatically locks it again. It uses hardware encryption and currently comes in 64GB and 256GB versions.
The important distinction is that these are hardware-encrypted drives. That's preferable for this use case because the encryption isn't dependent on software installed on the computer you're plugging the USB into.
If you tell me iPhone or Android, desired capacity (e.g. 64/256GB/1TB), and your budget, I can narrow it down to 2–3 specific drives and compare them.
iStorage datAshur BT — A true USB flash drive with AES-XTS 256-bit hardware encryption, Bluetooth unlocking through an iOS/Android app, biometric authentication, and remote-management capabilities. iStorage lists it as FIPS 140-2 Level 3 certified. iStorage (UK)Best fit if you specifically want a small USB stick.
SecureData SecureUSB BT — Another flash-drive option with AES-XTS 256-bit hardware encryption, FIPS 140-2 Level 3 validation, smartphone/Apple Watch authentication, remote wipe, and automatic locking when you move away from the drive.
Maktar Nukii — Uses an NFC tap plus its phone app to unlock, then automatically locks when unplugged. It comes in 64GB and 256GB versions. Maktar US
This is particularly interesting if you want tap-to-unlock rather than Bluetooth pairing.
Glyph SecureDrive Plus — More of a portable SSD than a thumb drive, with 2TB capacity and Bluetooth unlocking through a phone, including Face ID/Touch ID support.
My short list: If you want something genuinely pocket-sized, I'd look first at the datAshur BT or SecureUSB BT. If you want the simplest phone interaction, Nukii's NFC tap is worth considering.
If you tell me iPhone or Android, desired capacity (e.g. 64GB/256GB/1TB), and budget, I can narrow it down to the best 2–3 choices currently available.
An AES-XTS 256-bit encrypted Bluetooth flash drive controlled via an app on your smartphone or Apple Watch. It features dust and water resistance (IP57 rating) and complete independent user-to-admin configuration.
Would you prefer a smaller USB flash drive capacity (like 32GB–128GB) or a larger portable SSD version, and do you need advanced features like remote management or remote wipe?
Yes. The best match I found is the iStorage datAshur BT.
iStorage datAshur BT 64GB - $61.00 (newegg.com)
Best options
iStorage datAshur BT — A true USB flash drive that uses Bluetooth to let your iPhone or Android phone unlock it. You can authenticate with your phone's fingerprint/Face ID, and it supports remote wipe and automatic locking. It uses hardware AES-XTS 256-bit encryption and is FIPS 140-2 Level 3 certified.
SecureData SecureUSB BT — Another excellent choice, particularly if security certification matters. It has AES-XTS 256-bit hardware encryption, FIPS 140-2 Level 3 validation, phone/Apple Watch biometric unlocking, remote wipe, and automatic locking when you walk away. Current capacities range from 8GB to 256GB.
SecureData SecureDrive BT — If you need much more storage than a thumb drive, this is the same basic phone-unlock concept in an external SSD/HDD, with capacities up to 20TB.
My pick: the datAshur BT if you specifically want a small USB stick. The phone isn't merely opening an encrypted folder—the drive itself has hardware encryption and remains locked until authenticated. The app can also use the phone's biometric authentication.
If you tell me iPhone or Android, desired capacity (64GB/128GB/256GB/etc.), and budget, I can narrow it down to the best 2–3 choices currently available.
Yes, you can absolutely get a hardware-encrypted flash drive that unlocks using your smartphone. These devices rely on an encrypted Bluetooth or NFC link to authenticate with your phone via a dedicated app. Once you authenticate using your phone's biometrics (Face ID / Touch ID ) or a PIN, the drive instantly unlocks on your computer without requiring any host software.
Here are the top options available on the market that fit your exact request:
1. SecureData SecureUSB BT
This is arguably the most prominent mobile-app-unlocked option available.
How it works: You plug it into a computer, open the free companion app on your phone, and unlock it via Bluetooth.
Key Features: It utilizes military-grade XTS-AES 256-bit hardware encryption . It features a "Step Away Auto-Lock" that automatically locks the drive if your phone moves more than 10 feet away from it.
Security Bonus: It includes a remote wipe feature that can erase the device's data from anywhere if it's reported lost or stolen.
Pricing & Availability: You can find models like the SecureUSB BT 8GB starting around $99 directly from SecureData.
2. iStorage datAshur BT
iStorage is a leading name in hardware security, and their BT model is specifically designed for smartphone authentication.
How it works: Similar to SecureData, it utilizes an encrypted Bluetooth connection to communicate with an iOS or Android app.
Key Features: It is FIPS 140-2 Level 3 compliant , meaning it has robust physical security. The internal components are coated with a tough epoxy resin to prevent anyone from physically tampering with the chips.
Security Bonus: It has built-in brute-force protection. If someone tries to guess the password incorrectly 10 times, the drive permanently deletes the encryption key, rendering the data completely unrecoverable.
3. Maktar Nukii
If you prefer not to use Bluetooth, the Maktar Nukii provides a wireless alternative using NFC.
How it works: Instead of a continuous wireless connection, you physically tap your phone against the flash drive.
Key Features: The Nukii app uses your phone's native biometrics (Face ID/Touch ID) to verify your identity and immediately sends the unlock code over NFC . This completely eliminates the threat of keyloggers or shoulder-surfing.
Yes, you can absolutely get a hardware-encrypted flash drive that unlocks using your smartphone. These devices rely on an encrypted Bluetooth or NFC link to authenticate with your phone via a dedicated app. Once you authenticate using your phone's biometrics (Face ID / Touch ID ) or a PIN, the drive instantly unlocks on your computer without requiring any host software.
Here are the top options available on the market that fit your exact request:
1. SecureData SecureUSB BT
This is arguably the most prominent mobile-app-unlocked option available.
How it works: You plug it into a computer, open the free companion app on your phone, and unlock it via Bluetooth.
Key Features: It utilizes military-grade XTS-AES 256-bit hardware encryption . It features a "Step Away Auto-Lock" that automatically locks the drive if your phone moves more than 10 feet away from it.
Security Bonus: It includes a remote wipe feature that can erase the device's data from anywhere if it's reported lost or stolen.
Pricing & Availability: You can find models like the SecureUSB BT 8GB starting around $99 directly from SecureData.
2. iStorage datAshur BT
iStorage is a leading name in hardware security, and their BT model is specifically designed for smartphone authentication.
How it works: Similar to SecureData, it utilizes an encrypted Bluetooth connection to communicate with an iOS or Android app.
Key Features: It is FIPS 140-2 Level 3 compliant , meaning it has robust physical security. The internal components are coated with a tough epoxy resin to prevent anyone from physically tampering with the chips.
Security Bonus: It has built-in brute-force protection. If someone tries to guess the password incorrectly 10 times, the drive permanently deletes the encryption key, rendering the data completely unrecoverable.
3. Maktar Nukii
If you prefer not to use Bluetooth, the Maktar Nukii provides a wireless alternative using NFC.
How it works: Instead of a continuous wireless connection, you physically tap your phone against the flash drive.
Key Features: The Nukii app uses your phone's native biometrics (Face ID/Touch ID) to verify your identity and immediately sends the unlock code over NFC . This completely eliminates the threat of keyloggers or shoulder-surfing.
Yes. There are a few good options that actually use your phone to authenticate the USB drive, rather than merely encrypting files with software.
My top picks
iStorage datAshur BT 64GB - $61.00 (newegg.com)
Best overall: iStorage datAshur BT
Unlocks via iOS or Android over Bluetooth, using Face ID, fingerprint, or a password.
Hardware AES-XTS 256-bit encryption.
FIPS 140-2 Level 3 certified.
Remote wipe and automatic locking are supported.
Works without installing software on the computer.
The 64GB version is currently showing around $61 in the shopping results.
SecureData SecureUSB BT 32GB - $99.00 (B&H Photo)
Best value/security combination: SecureData SecureUSB BT
Smartphone/Apple Watch authentication.
Face ID/Touch ID support through the SecureData Lock app.
AES-XTS 256-bit hardware encryption and FIPS 140-2 Level 3 validation.
Remote wipe, inactivity auto-lock, and brute-force protection.
32GB is currently listed at about $99.
Interesting alternative
Maktar Nukii is much simpler: you open the Nukii app and tap an NFC-capable phone against the drive to unlock it; unplugging automatically locks it again. It uses hardware AES encryption and doesn't require encryption software on the computer.
I'd choose the datAshur BT if security is the priority. The Nukii is more appealing if you want something extremely simple and don't need enterprise-oriented features like FIPS certification and remote wipe.
If you tell me iPhone or Android, desired capacity (e.g. 64/128/256GB), and budget, I can narrow it down to the best 2–3 choices.
Yes. If you specifically want a USB drive that unlocks from your phone, there are a few good options.
iStorage datAshur BT 64GB - $61.00 (newegg.com)
My top pick: iStorage datAshur BT
The iStorage datAshur BT is probably the closest match to what you're describing:
Bluetooth phone unlocking through an iOS/Android app.
You can authenticate with Face ID, Touch ID/fingerprint, or a password.
AES-XTS 256-bit hardware encryption.
The drive itself handles encryption, so you don't need special software on the computer.
Remote wipe and automatic locking are supported.
Available in capacities up to 256GB.
Current listings show the 64GB version around $61, although pricing varies.
Another interesting option: Cléxi
Cléxi makes a smart encrypted SSD that uses your smartphone to authenticate. You tap your phone against the drive, authenticate with your phone, and it unlocks. It uses AES-256 hardware encryption and supports iOS and Android.
If you want maximum security
The SecureUSB BT from SecureData is worth considering. It has FIPS 140-2 Level 3 validation, AES-XTS 256-bit hardware encryption, Bluetooth phone authentication, biometric unlocking, remote wipe, and IP68 protection. It's more of a professional/security-oriented product, though, and consequently costs more—the 64GB model is currently listed at $179.
One important distinction: don't confuse these with ordinary "phone USB drives" such as SanDisk's Phone Drive. Those can use a mobile app for file transfers/backups, but that's different from a drive whose encrypted storage is actually locked/unlocked by the phone.
If you tell me iPhone or Android, desired capacity (64GB/128GB/256GB/1TB), and your budget, I can narrow this down to the best 2–3 choices currently available.
App & Biometric Unlock: Unlocks via the SecureData Lock app (available on iOS and Android). It supports phone biometrics like Face ID, Touch ID, or Android fingerprint scanners.
Military-Grade Encryption: Features real-time XTS-AES 256-bit full-disk hardware encryption.
Step-Away Auto-Lock: Automatically locks and disappears from your computer's file explorer if your paired phone moves roughly 3 meters (10 feet) away.
OS Independent: Because the encryption and authentication happen on the hardware level via the drive and phone, it requires no software installation on the host computer and works across Windows, Mac, and Linux.
Security Certifications: FIPS 140-2 Level 3 validated design with a tamper-evident, epoxy-coated cryptologic module.
Optional Remote Management: Admins can add a license for remote data wiping, geo-fencing, and password resets.
You can check out specifications or buy a unit directly via SecureData.com or read product options on B&H Photo Video.[1]
Would you like to know more about the storage capacity options available for the SecureUSB BT, or are you looking for a software-based alternative that turns a standard USB drive into an app-unlocked drive?
Yes. If you specifically want a USB flash drive that can be unlocked from a phone, rather than just a drive with a password, there are a few good options.
Best options
iStorage datAshur BT 64GB - $61.00 (newegg.com)
1. iStorage datAshur BT — my top pick for a small USB stick
Unlocks/locks via a Bluetooth smartphone app.
Supports iPhone and Android.
Uses AES-XTS 256-bit hardware encryption.
The app supports Face ID/Touch ID, remote wipe, and automatic locking.
The drive itself doesn't require special software on the computer once unlocked.
Current 64GB listing I found is around $61, though prices vary.
Glyph SecureDrive Plus 2TB - $499.99 (Walmart - Focus Camera)
2. Glyph SecureDrive Plus — if you need much more storage
This is an encrypted SSD rather than a thumb drive, with Bluetooth unlocking and Face ID/Touch ID or Android authentication. It uses XTS-AES 256-bit hardware encryption.
3. SecureData SecureUSB BT — strongest security feature set
This is another purpose-built USB flash drive with FIPS 140-2 Level 3 validation, AES-XTS 256-bit hardware encryption, smartphone authentication, remote wipe, inactivity/step-away locking, and IP68 protection. It supports both Android and iOS.
Its current pricing starts around $99 for 8GB / $139 for 32GB / $219 for 128GB directly from the manufacturer.
What I'd buy
For a normal thumb-drive form factor + phone unlocking, I'd choose the iStorage datAshur BT. It's much closer to what you're describing than conventional encrypted drives with a physical keypad.
One important distinction: phone app unlocking doesn't necessarily mean the phone itself stores the encryption key. For example, iStorage says Bluetooth is used as the authentication channel and the drive's encryption key isn't transmitted over Bluetooth.
If you tell me iPhone or Android, desired capacity (64/128/256GB+), and your budget, I can narrow it down to the best 2–3 choices currently available.
