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| Samsung Galaxy Watch Ultra2 (SM-L715F)
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Security Grade
Calculator v
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Samsung Galaxy Watch Ultra2Samsung Galaxy Watch Ultra2
Category: Smartwatch • Model / Gen: 2nd Ultra generation SM-L715F (LTE global), SM-L715U (US)
Release Date: 2026-07-22 • Status: In sale
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Security Evaluation
1. Device Security
| Criterion
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Value
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Proof
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Comment
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| Known hardware tampering
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Rare
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🔗 Proof
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Knox Vault on wearable, Verified Boot, sealed titanium chassis; smaller attack surface than phones.
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| Known vulnerabilities
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Rare
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🔗 Proof
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Wear OS has far fewer disclosed CVEs than full Android; monthly Wear OS security bulletins track vulnerabilities separately.
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| Prior attacks
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Rare
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🔗 Proof
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Smartwatches are not a primary spyware target; far fewer documented exploit cases than flagship phones.
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| Updatability
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Very common
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🔗 Proof
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Galaxy Watch series receives 4–5 years of OS + security updates (Watch Ultra2 launched July 2026).
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| Category Score
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Score: 2 / 3
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2. System Security
| Criterion
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Value
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Proof
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Comment
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| Authentication with other systems
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Partial
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🔗 Proof
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Relies on paired Android phone's Samsung/Google account for full auth; standalone watch offers PIN unlock only. Knox Workspace available on paired devices.
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| Communications
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Encrypted with up-to-date encryption
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🔗 Proof
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Bluetooth 6.0 LE Secure Connections, WPA3 Wi-Fi, TLS 1.3 for cloud sync; LTE uses standard mobile encryption.
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| Storage
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Encrypted with up-to-date encryption
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🔗 Proof
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AES-256 encryption with Knox Vault-backed keystore; health data encrypted at rest.
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| Category Score
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Score: 2 / 3
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3. User Authentication
| Criterion
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Value
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Proof
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Comment
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| Account management
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Basic
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🔗 Proof
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Account management delegated to paired phone; watch itself has no standalone account system.
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| Authentication
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Basic
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🔗 Proof
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PIN unlock + re-pairing requirement; no biometric auth on watch itself (uses phone's biometrics).
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| Brute-force protection
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Basic
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🔗 Proof
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PIN attempt limits after repeated failures; factory reset protection tied to Samsung account.
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| Event logging
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Partial logging
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🔗 Proof
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Basic access logs synced to paired phone; enterprise audit logs available via Knox.
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| Passwords
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Require change after setup
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🔗 Proof
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On initial setup, user must create a watch PIN to enable lock; no complexity requirements enforced by default.
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| Category Score
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Score: 2 / 3
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Technical Specifications
| Property
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Details
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| Operating System & App
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Wear OS 5 (One UI Watch 7) (Companion App: Galaxy Wearable, Samsung Health)
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| Hardware (CPU / GPU)
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CPU: Exynos W1000 (5nm) • GPU: Mali-G68 (integrated)
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| Memory & Storage
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Memory: 2 GB RAM • Storage: 32 GB
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| Power, Battery & Charging
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Battery: 800 mAh (typical) • Power: 10W wireless • Charging: Wireless charging (WPC)
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| Display & Camera
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Display: 1.52" Super AMOLED, 498×498, 5000 nits peak • Camera: None
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| Sound & Connectivity
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Sound: Single speaker, dual mics • Connectivity: LTE (optional), Bluetooth 6.0, Wi-Fi, NFC, GPS
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| Physical (Dimensions & Mass)
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Dimensions: 47.4 × 47.1 × 10.7 mm • Mass: 61.5 g
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Samsung Galaxy Watch Ultra2 is a 2026 premium outdoor smartwatch (47.4mm titanium case, 800 mAh battery, up to 80 hours usage) running Wear OS 5 with One UI Watch 7. It features Knox Vault security and Verified Boot on the wearable platform, but its authentication model is fundamentally dependent on the paired Android phone — the watch itself offers only PIN unlock without standalone biometrics. Communications use Bluetooth 6.0 LE Secure Connections and WPA3. Health data is encrypted at rest with AES-256. The watch receives 4–5 years of OS + security updates. As a Wear OS device, it has a smaller attack surface and far fewer documented exploits than flagship phones.
