Vivo S18

Security Evaluation

1. Device Security

Criterion	Value	Proof	Comment
Known hardware tampering	Rare	🔗 Proof
Known vulnerabilities	Rare	🔗 Proof
Prior attacks	Rare	🔗 Proof
Updatability	Rare	🔗 Proof
Category Score	Score: 2 / 3

2. System Security

Criterion	Value	Proof	Comment
Authentication with other systems	Partial	🔗 Proof
Communications	Encrypted with up-to-date encryption	🔗 Proof
Storage	Encrypted with up-to-date encryption	🔗 Proof
Category Score	Score: 2 / 3

3. User Authentication

Criterion	Value	Proof	Comment
Account management	Basic	🔗 Proof
Authentication	Basic	🔗 Proof
Brute-force protection	Basic	🔗 Proof
Event logging	Partial logging	🔗 Proof
Passwords	Require change after setup with complexity requirements	🔗 Proof
Category Score	Score: 2 / 3

Technical Specifications

Property	Details
Operating System & App	(Companion App: )
Hardware (CPU / GPU)	CPU: MediaTek Dimensity 9200+ (TSMC 4nm) • GPU: Mali-G715 MC11
Memory & Storage	Memory: 8GB / 12GB LPDDR5X • Storage: 256GB / 512GB UFS 4.0
Power, Battery & Charging	Battery: 5000mAh (typical), supports fast charging • Power: 80W Flash Charge (vivo’s proprietary fast charging) • Charging: USB-C port, supports 80W wired fast charging
Display & Camera	Display: 6.78-inch AMOLED display, Full HD+ resolution (2800×1260), 120Hz refresh rate, 3000 nits peak brightness, 1.07 billion colors, LTPO technology • Camera: Rear: 50MP main camera (Sony IMX920, OIS), 8MP ultra-wide, 2MP macro Front: 50MP selfie camera (Sony IMX800, f/2.0, 16mm wide-angle)
Sound & Connectivity	Sound: Stereo speakers, Hi-Res Audio certification, support for DTS:X 3D audio • Connectivity: Wi-Fi 6E, Bluetooth 5.3, GPS, NFC, USB-C, 5G SA/NSA, dual SIM
Physical (Dimensions & Mass)	Dimensions: • Mass: