About this item

1. Design & Build

1.1 Curved & Ergonomic Form

• The Y400 Pro 5G features a 3D curved AMOLED display (on the front) with gently rounded edges, creating a smooth, continuous surface that wraps into the frame.

• The middle frame employs a curvature design (claim: “60° gold curvature”) for an improved grip and aesthetic balance.

1.2 Slim Profile & Lightweight Feel

• Its thickness is in the range of ~7.49 mm to ~7.72 mm depending on the color variant, making it relatively slim for a 5G phone with a large battery.

• The weight is around 182 g, which is reasonable given its display and battery size.

1.3 Splash & Dust Resistance

• The device has an IP65 rating (dust and water resistance) — meaning it can resist dust ingress and low-pressure water jets (but not full immersion).

• Features like Wet-Hand Touch Technology help maintain screen responsiveness even when hands are moist or oily.

2. Display

2.1 Panel Specs & Quality

• The Y400 Pro uses a 6.77-inch AMOLED display, with resolution 2392 × 1080 (Full HD+).

• It supports HDR10+ enhancements to better render high dynamic range content.

2.2 Refresh Rate & Brightness

• Refresh rate is up to 120 Hz, enabling smooth transitions, animations, and gaming.

• Local peak brightness goes as high as 4,500 nits, allowing the screen to stay visible under strong sunlight.

2.3 Color & Emissive Material

• The display uses P2 (or P3 / wide) color gamut for vivid, wide color reproduction.

• The light-emitting material is labeled U8, an advanced OLED generation for improved efficiency and brightness control.

3. Platform & Performance

3.1 Operating System & UI

• Ships with Android 14 and Funtouch OS 14 (some sources also mention upgrade or alignment to newer Android versions).

• The UI includes Vivo’s feature set (AI tools, productivity enhancements, etc.).

3.2 SoC & Architecture

• Powered by the MediaTek Dimensity 7300, built on a 4 nm process.

• CPU is octa-core, with maximum clock speed up to 2.5 GHz for the top cores, and lower power cores for efficiency.

3.3 Memory & Storage

• Comes with 8 GB LPDDR4X RAM.

• Storage options: 128 GB or 256 GB, likely UFS variant (for high read/write speeds).

• No hybrid SIM / microSD slot: the device uses dual nano-SIM without expansion.

4. Cameras & Imaging

4.1 Rear Camera Array

• Dual rear setup:

  • 50 MP Sony IMX882 main sensor (aperture ~ f/1.79)

  • 2 MP depth (bokeh) sensor (for depth estimation in portrait / background blur)

• Supports various shooting modes: Night, Portrait, 50MP high detail, Panorama, Pro modes, Document capture, Slo-mo, Time-lapse, Dual View, etc.

4.2 Front / Selfie Camera

• 32 MP front-facing camera (aperture approx. f/2.45) for selfies, video calls, and features like Portrait, Night mode, Dual View, etc.

4.3 Video Recording & Special Modes

• Both front and rear cameras support 4K / Ultra HD video recording (i.e. 4K shooting).

• The rear camera supports Dual View (capturing from front + back simultaneously).

• Additional modes include Aura light (for fill lighting), Sony multifocal portrait technology (for sharper portrait photography), and underwater photography support (thanks to ingress protection).

5. Battery & Charging

5.1 Battery Capacity & Efficiency

• The phone includes a 5,500 mAh (typical) battery (some sources call it minimum capacity).

• Combined with the efficient 4-nm SoC and software optimizations, it aims to deliver full-day or multi-day usage.

5.2 Fast Charging Technology

• Supports 90 W wired fast charging (Vivo’s “FlashCharge” or equivalent).

• With this, the Y400 Pro claims fast top-up times (e.g. partial charge in ~20 minutes) depending on usage and conditions.

6. Connectivity & Networking

6.1 Network Support

• Full support for 5G (SA / NSA) across a broad list of bands: n1, n3, n5, n8, n28B, n38, n40, n41, n77, n78.

• Also compatible with legacy 4G LTE (FDD / TDD), 3G / WCDMA, and 2G / GSM networks.

6.2 Wireless & Peripheral Interfaces

• Wi-Fi: Dual-band (2.4 GHz + 5 GHz), likely with support for Wi-Fi 6 / 802.11ac or better.

• Bluetooth 5.4 support for peripherals, headphones, etc.

• USB Type-C (USB 2.0) port with OTG support (for USB peripherals).

• NFC: Present.

• Infrared (IR): Present — can be used to control home appliances like a remote.

• Global navigation systems supported: GPS, GLONASS, BeiDou, Galileo, QZSS, etc.

7. Sensors & Security

7.1 Biometrics & Authentication

• An in-display optical fingerprint sensor for secure unlocking.

• Face unlocking (via camera) may also be supported.

7.2 Other Sensors

• Standard sensor suite including: accelerometer, gyroscope, ambient light sensor, proximity sensor, magnetometer (compass), etc.

8. AI & Smart Features

8.1 Productivity & Assistive AI

• AI Transcript Assist: Converts recorded audio (e.g. lectures, calls) into transcribed text with summaries.

• AI Note Assist: Helps with formatting, extracting to-do items, language translation, etc.

• Circle to Search: You can draw or circle text / objects on screen to trigger contextual search.

• AI Super Link (or equivalent): Intelligently manage network switching / boosting to maintain connectivity in weak signal zones.

• AI Live Text, AI Live Call Translation, AI Live Captioning may also be part of the feature set.

8.2 Experience & Updates

• Vivo markets a long “smooth experience” timeline, implying sustained performance optimizations over months/years.

• The UI and OS (Funtouch + Android base) include various software enhancements and customization options.

9. Dimensions, Weight & Miscellaneous

9.1 Physical Dimensions

• Dimensions: approximately 163.72 mm × 75 mm × 7.49–7.72 mm (depending on color/variant).

• The thickness varies slightly across variants due to curved glass or different back materials.

9.2 Weight

• About 182 g.

9.3 In-box Contents & Warranty

• Package includes: handset, charger, USB cable, protective case, pre-applied protective film, ejector tool, warranty card, user guide.

• Warranty: 1 year for the device and 6 months for accessories.

10. Pricing & Variants

10.1 Price in India at Launch

• 8 GB + 128 GB variant: ₹24,999

• 8 GB + 256 GB variant: ₹26,999

10.2 Color Options

• Available in Freestyle White, Fest Gold, and Nebula Purple.

10.3 Model & SKU

• Model number: V2439

• SKU variants differ by color and storage configuration.