Samsung Galaxy Z Fold8 Ultra (SM-F976B

Samsung Galaxy Z Fold8 Ultra (SM-F976B
Security Grade A Calculator v	Samsung Galaxy Z Fold8 Ultra Brand: Samsung (Parent: Samsung Electronics) Category: Foldable Smartphone • Model / Gen: 8th Fold generation SM-F976B (global), SM-F976U (US), SM-F9760 (China) Release Date: 2026-07-22 • Status: In sale Classification Date: • Official Website

Security Evaluation

1. Device Security

Criterion	Value	Proof	Comment
Known hardware tampering	None	[[1](https://link.wtturl.cn/?target=https%3A%2F%2Fdocs.samsungknox.com%2Fadmin%2Ffundamentals%2Fwhitepaper%2Fsamsung-knox-mobile-security%2Fassets%2FKnox-security-white-paper-r1.pdf&scene=im&aid=582478&lang=zh) [2](https://link.wtturl.cn/?target=https%3A%2F%2Fwww.samsungknox.com%2Fen%2Fsecured-by-knox&scene=im&aid=582478&lang=zh) 🔗 Proof]	Knox Verified Boot + Knox Vault; foldable hinge adds physical disassembly complexity; motherboard security identical to S-series.
Known vulnerabilities	Very common	🔗 Proof	Same Android flagship attack surface as S-series; monthly security bulletins cover foldable-specific components.
Prior attacks	Very common	🔗 Proof	Foldable Galaxy series has been targeted alongside S-series by spyware and exploit frameworks.
Updatability	Very common	🔗 Proof	Z Fold8 series entitled to 7 years of OS + security updates from launch (Jul 2026 → ~2033).
Category Score	Score: 2 / 3

2. System Security

Criterion	Value	Proof	Comment
Authentication with other systems	Full	🔗 Proof	Same Knox platform as S26 Ultra: biometrics, Samsung/Google accounts, Knox Workspace, Play Integrity, hardware keystore.
Communications	Encrypted with up-to-date encryption	🔗 Proof	TLS 1.3, WPA3, Bluetooth 6.0 LE Secure, Knox Network Protection.
Storage	Encrypted with up-to-date encryption	🔗 Proof	AES-256 file-based encryption with Knox Vault-backed keystore.
Category Score	Score: 1 / 3

3. User Authentication

Criterion	Value	Proof	Comment
Account management	Full	🔗 Proof	Same full account system as S-series: Samsung account, Google account, Knox Workspace, MDM enrollment.
Authentication	Secure	🔗 Proof	Ultrasonic fingerprint + face unlock + PIN/password; biometrics in Knox Vault.
Brute-force protection	Exist	🔗 Proof	Progressive lockout, factory reset protection, Knox Warranty Bit.
Event logging	Access event logged	🔗 Proof	Knox audit logs, Play Protect logs, EMM reporting.
Passwords	Require change after setup with complexity requirements	🔗 Proof	Setup requires PIN/password; Knox enterprise policies enforce complexity.
Category Score	Score: 1 / 3

Technical Specifications

Property	Details
Operating System & App	Android 16 (One UI 8.0) (Companion App: Samsung Members, Galaxy Wearable)
Hardware (CPU / GPU)	CPU: Snapdragon 8 Elite Gen 5 for Galaxy (3nm), Octa-core (4.74GHz + 3.6GHz) • GPU: Adreno 835 (integrated)
Memory & Storage	Memory: 12 GB / 16 GB RAM • Storage: 256 GB / 512 GB / 1 TB
Power, Battery & Charging	Battery: 5000 mAh (typical) • Power: 45W wired, 15W wireless • Charging: 45W Super Fast Charging, 15W Wireless
Display & Camera	Display: Main: 8.0" Dynamic AMOLED 2X, 2504×2256, 120Hz; Cover: 6.5" • Camera: 200MP main + 50MP telephoto + 12MP ultra-wide + under-display front
Sound & Connectivity	Sound: Stereo speakers (AKG), Dolby Atmos • Connectivity: 5G, Wi-Fi 7, Bluetooth 6.0, NFC, USB-C
Physical (Dimensions & Mass)	Dimensions: Unfolded: 158.4 × 143.2 × 4.1 mm; Folded: 158.4 × 72.8 × 8.9 mm • Mass: 215 g

Samsung Galaxy Z Fold8 Ultra is a 2026 premium foldable smartphone (8.0" main display, 4.1mm unfolded thickness) powered by Snapdragon 8 Elite Gen 5 for Galaxy. It shares the same Samsung Knox Vault security platform as the S26 series, including Verified Boot, Knox Warranty Bit, and hardware-backed keystore. The foldable hinge adds physical disassembly complexity but the motherboard security architecture is identical to slab Galaxy flagships. Entitled to 7 years of OS + security updates from launch (Jul 2026 → ~2033). Biometric auth (fingerprint + face) stored in Knox Vault. AES-256 storage encryption, TLS 1.3 / WPA3 communications. Same high-value target profile as other Galaxy flagships.