The Vivo Y400 5G sports a 6.67-inch E4 AMOLED Display with a full-HD+ resolution of 1080 x 2400 pixels, 394 ppi, 120Hz refresh rate, and up to 4500 nits of peak brightness. It also supports P3 wide colour gamut. The device is powered by the Snapdragon 4 Gen 2 SoC, paired with 8GB of LPDDR4x RAM and up to 256GB of UFS 3.1 storage.
For optics, it gets a dual camera system on the back, including a 50MP f/1.79 Sony IMX852 main sensor with PDAF and a 2MP f/2.4 depth sensor. On the front, it gets a 32MP f/2.4 selfie sensor. The handset is backed by a 6000mAh battery with 90W fast wired charging support.
Connectivity options on the device includes Wi-Fi 5, Bluetooth v5.4, GPS, and a USB-C port. It further runs on FunTouch OS 15 based on Android 15, packs dual stereo speakers, and is also IP68 + IP69 rated for dust and water resistance. There’s also an under-display optical fingerprint sensor for biometric authentication.
| Status | Launched |
| Launch Date | 04 August, 2025 |
| Price (₹) | 21,999 |
| Memory Variants | 8/128 GB, 8/256 GB |
| Colour Options | Olive Green, Glam White |
| Front Protection Glass | Some Glass |
| Device Back | Polycarbonate/Plastic |
| Screen Size (Inches) | 6.67 |
| Screen Type | E4 AMOLED |
| Screen Resolution | 1080 x 2400 pixels |
| Screen Aspect Ratio | 20:9 |
| Refresh Rate | 120 Hz |
| Touch Sampling Rate | Unknown |
| Pixel Density (PPI) | 394 |
| Chipset | Snapdragon 4 Gen 2 |
| Phone RAM | 8 GB |
| Phone RAM Type | LPDDR4x |
| Storage Capacity | 128 GB, 256 GB |
| Storage Type | UFS 3.1 |
| Memory Card Slot | N/A |
| OS & UI | Android 15, FunTouch OS 15 |
| Rear Camera Module | Dual |
| Rear Camera Specs | 50MP f/1.79 Sony IMX852 primary sensor, PDAF + 2MP f/2.4 depth sensor |
| Front Camera Module | Single |
| Front Camera Specs | 32MP, f/2.4 aperture |
| Battery Capacity (mAh) | 6000 |
| Fast Charging | |
| Charging Speed | 90W |
| Wireless Charging | |
| Reverse Charging |
| Supported Networks | 5G |
| SIM Slots | Dual (nano) |
| Bluetooth | v5.4 |
| Wi-Fi | Wi-Fi 5 |
| USB Port | USB Type-C |
| NFC Chip | |
| Supported GPS | Dual Band GPS, AGPS, GLONASS |
| 3.5 mm Audio Jack | |
| Set of Speakers | Stereo |
| Face Unlock | |
| Fingerprint Reader | In-display (Optical) |
| IR Blaster | |
| Sensors | Accelerometer, Ambient Light, E-Compass, Fingerprint, Gyroscope, Proximity, Vibration |
| IP Rating | IP68 + IP69 |