Here’s a refined and professional listing for your store:

iPhone 16 – Ultramarine Edition (Pre-Owned, Excellent Condition)
128GB storage with pristine 100% battery health. Fully tested and certified for performance and reliability.

Included:

• Custom packaging
• Lightning cable and accessories
• Protective case

Key Features:

Color: Ultramarine – bold, elegant, and exclusive

Storage: 128GB internal storage

Battery Health: 100% – peak performance guaranteed

Display: 6.1" Super Retina XDR OLED, HDR10, True Tone

Processor: A18 Bionic chip with next-gen GPU for ultra-fast performance

Camera System: Dual-lens 48MP + 12MP with Photonic Engine, 4K Dolby Vision HDR recording

Security: Face ID, Secure Enclave

Connectivity: Supports both Physical SIM and Dual eSIM

Durability: Ceramic Shield front, IP68 water and dust resistance

Audio: Spatial Audio, Dolby Atmos support

Unlocked and compatible with all major carriers. Ideal for users seeking cutting-edge performance, cinematic visuals, and seamless connectivity.