Vivo Y16 (4/64GB) smartphone, as details about specific models and their features can change over time with new releases. However, I can provide you with a general format of features that you might find in a mid-range smartphone like the Vivo Y16:

1. Display: The Vivo Y16 is likely to have a display with an HD or Full HD resolution, providing a clear and vibrant visual experience.

2. Processor: It may be equipped with a mid-range processor, providing a balance between performance and energy efficiency.

3. Storage: The "4/64GB" specification suggests 4GB of RAM and 64GB of internal storage. This configuration allows for decent multitasking and provides ample space for apps, media, and files.

4. Camera: The smartphone may feature a dual or triple rear camera setup, offering various shooting modes and enhancements for capturing quality photos and videos.

5. Battery: Expect a battery with a capacity that can last through a day of regular usage.

6. Operating System: The device likely runs on the Android operating system, customized with Vivo's own user interface (UI).

7. Connectivity: Standard connectivity options such as 4G LTE, Wi-Fi, Bluetooth, and GPS are expected.

8. Design: Vivo phones often have sleek and modern designs, with attention to aesthetics and build quality.

9. Additional Features: Depending on the model and release date, additional features like a fingerprint sensor, facial recognition, and AI enhancements may be included.

10. Price Range: The pricing of the Vivo Y16 would typically fall in the mid-range category, offering a balance between features and affordability.

To get the most accurate and up-to-date information, it's recommended to check the official Vivo website or contact authorized retailers for the latest details on the Vivo Y16 (4/64GB) smartphone.