vivo Y400

Coming to the front, the Vivo Y400 sports a 6.67-inch FHD (2,400 × 1,080) flat AMOLED display with up to 120Hz refresh rate. This is an E4 panel, which we saw on flagship smartphones like the OnePlus 11 from a few years back. Furthermore, the display gets a pixel density of 394 ppi, P3 wide colour gamut, and up to 1,800 nits of peak brightness. While the panel is decently visible in indoor conditions, it struggles to keep up outdoors on bright sunny days, especially against the OnePlus Nord CE 5 and Motorola Edge 60 Fusion.

The Vivo Y400 sports a 50MP Sony IMX852 main camera, which comes with a sensor size of 1/2.96-inches and an f/1.8 aperture. Aiding it is a 2MP bokeh camera along with a squarish-shaped ringed module called ‘Dynamic Light'. Sitting in the punch hole of the display is a 32MP selfie shooter. The Y400 is capable of recording videos in up to 1080p resolution at 30FPS, which is several tiers below the competition since phones like the OnePlus Nord CE 5 get 4K rear camera recording support.

Running the show on the Vivo Y400 is the Qualcomm Snapdragon 4 Gen 2 processor. This is an octa-core chipset built on a 4nm fabrication process with up to 2.2GHz clock speed. While this is a tried and tested 5G processor, it pales in comparison to the chipsets found on competing phones like the OnePlus Nord CE 5 and Motorola Edge 60 Fusion, which get the MediaTek Dimensity 8350 Apex and Dimensity 7400 SoCs, respectively.

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In terms of AnTuTu scores, the OnePlus Nord CE 5 fares better than the Vivo Y400, indicating better raw performance in high-intensity tasks such as games, multitasking, and photo / video editing. In day-to-day usage, the Vivo Y400 showed signs of stutter when launching apps or opening the notification panel when lots of apps are loaded into the memory. Similar to the OnePlus smartphone, the Vivo Y400 features UFS 3.1 storage speeds, but the performance doesn't match up.

The Vivo Y400 runs on the Android 15-based Funtouch OS 15 custom software. It's a functional software that offers numerous features and customisation options. The usual options like app clone, sidebar, a dedicated Ultra Game Mode, floating windows, split screen, a simple mode, and more nifty features that one would use in daily life. The handset also carries several pre-installed apps like Amazon, PhonePe, Truecaller, LinkedIn, Netflix, along with Vivo's V-Appstore. In case you find these apps redundant, they can be uninstalled.

A large 6,000mAh battery is responsible for powering up the Vivo Y400. While this is a larger capacity battery than the Vivo Y400 Pro, which boasts a 5,500mAh cell, it retains the same 90W FlashCharge support from its 'Pro' counterpart. Vivo claims the battery can be juiced up in 44 minutes, and in our testing, the Y400 took 43 minutes to charge from 20 to 100 percent, which is a nominal duration for a phone with such a large battery.