- Octa-core processor for seamless multitasking
- High-resolution camera with AI enhancements for stunning photos
- Long-lasting battery life for all-day use
- Large storage capacity for storing photos, videos, and apps
- Fingerprint sensor for added security
- Dual SIM capability for added convenience
- Stay connected and productive with the fast performance of the octa-core processor
- Capture memorable moments with the high-resolution camera and share them instantly
- Enjoy uninterrupted usage with the long-lasting battery life
- Keep all your files and apps organized with the large storage capacity
- Secure your device and data with the fingerprint sensor for peace of mind
- Easily manage personal and work contacts with dual SIM capability

1. Power on the device by pressing and holding the power button located on the side or top of the phone.
2. Set up your device by following the on-screen instructions to activate the phone.
3. Customize your settings, such as display brightness, sound preferences, and security features.
4. Download and install your favorite apps from the app store to personalize your smartphone experience.
5. To capture photos, open the camera app and use the AI enhancements to take stunning pictures.
6. Remember to charge your device regularly to ensure optimal battery performance and longevity.
7. Protect your device and data by setting up the fingerprint sensor for added security.

Keywords: Vivo Y400, mobile, smartphone, octa-core processor, high-resolution camera, long-lasting battery, fingerprint sensor, dual SIM.