Vivo iQOO Z10 Lite VS Vivo Y400 4G

The most significant differentiator in this group is the water protection rating. The Vivo Y400 4G carries an IP68 certification, meaning it can withstand submersion in water — typically up to 1.5 meters for 30 minutes — making it genuinely waterproof in everyday accident scenarios like drops in a sink or puddle. The iQOO Z10 Lite, by contrast, is rated IP64, which only guarantees protection against splashes and dust ingress from any direction, but offers no submersion tolerance. For users who frequently use their phone near water or in unpredictable environments, this is a meaningful real-world gap.

In terms of physical form factor, the Y400 4G also holds a measurable advantage. At 7.9 mm thick and 198 g, it is both slimmer and lighter than the iQOO Z10 Lite's 8.2 mm and 202 g. While these differences are subtle individually, combined with a smaller overall footprint — roughly 96.5 cm³ versus 105.6 cm³ in volume — the Y400 4G will feel noticeably more compact and pocketable in daily use.

Both phones share a non-rugged, non-foldable build, so neither targets extreme durability use cases. However, on every measurable design dimension in this group — protection rating, weight, thickness, and compactness — the Y400 4G has a clear edge, particularly due to its superior IP68 rating, which represents a qualitative leap in real-world water protection rather than just a marginal spec improvement.

Both phones use OLED/AMOLED panels, which guarantees deep blacks, vibrant colors, and efficient power use for dark-themed interfaces. Beyond that shared foundation, however, the displays diverge sharply. The Y400 4G renders at 1080 x 2400 px with a pixel density of 395 ppi, while the iQOO Z10 Lite tops out at 720 x 1600 px and just 260 ppi — a difference that is clearly perceptible to the naked eye. At 260 ppi, text edges and fine UI details begin to lose crispness, particularly noticeable when reading or browsing. The Y400 4G's 395 ppi, by contrast, sits well into the ″retina″ threshold where individual pixels become indistinguishable at normal viewing distances.

The Y400 4G also runs at a 120Hz refresh rate versus the Z10 Lite's 90Hz. In practice, 120Hz makes scrolling, animations, and gaming feel noticeably smoother and more responsive. While 90Hz is already an improvement over the standard 60Hz baseline, 120Hz has become the expected standard for a premium-feeling experience. Additionally, the Y400 4G supports HDR10, enabling higher dynamic range in compatible streaming content — richer highlights and deeper shadows — a feature entirely absent on the Z10 Lite.

The Z10 Lite's slightly larger 6.74-inch screen is its only display advantage over the Y400 4G's 6.67 inches, but this marginal size benefit is far outweighed by the quality gap. Across resolution, sharpness, refresh rate, and HDR support, the Y400 4G holds a decisive advantage in this category and will deliver a meaningfully superior visual experience in everyday use.

On paper, both phones match in storage, base RAM, process node, and memory speed — but the chipsets tell a starkly different story. The iQOO Z10 Lite's MediaTek Dimensity 6300 scores 2012 (multi-core) and 782 (single-core) on Geekbench 6, versus the Vivo Y400 4G's Snapdragon 685 at just 1510 and 473 respectively. That is a roughly 33% lead in multi-core and a 65% gap in single-core — the latter being especially impactful for everyday responsiveness, since most routine tasks like launching apps, typing, and UI interactions are single-threaded workloads.

The GPU picture is more nuanced. The Y400 4G's Adreno 610 runs at a higher clock speed of 1260 MHz compared to the Z10 Lite's Mali-G57 MC2 at 950 MHz, which could give it an advantage in GPU-bound tasks. The Y400 4G also supports a higher maximum RAM configuration of 16GB versus the Z10 Lite's 12GB ceiling — useful for power users who rely on virtual RAM expansion features.

Overall, the Z10 Lite holds a clear CPU performance advantage that will be felt in day-to-day use, from app launches to multitasking fluidity. The Y400 4G partially offsets this with a faster GPU clock and higher RAM ceiling, making the trade-off relevant mainly to users prioritizing graphics-intensive tasks. For general performance, the Z10 Lite is the stronger choice based on the provided data.

Rarely do two competing phones align this closely on camera specifications. The rear systems are effectively identical: both feature a 50 MP + 2 MP dual-lens main camera, cap video recording at 1080p at 30fps, and share the same autofocus technologies, manual controls, and shooting modes. Neither offers optical image stabilization or optical zoom, which places both squarely in the mid-range tier for imaging capability.

The only meaningful separation comes from the front camera. The Y400 4G sports an 8 MP selfie shooter with a slightly wider f/2.1 aperture, compared to the Z10 Lite's 5 MP front camera at f/2.2. In practice, the higher megapixel count on the Y400 4G allows for more detail in selfies and better cropping flexibility, while the marginally wider aperture lets in slightly more light — a modest but real advantage in lower-light selfie scenarios.

For rear photography and videography, this category is a dead heat. The sole differentiator is the front camera, where the Y400 4G holds a narrow edge — meaningful primarily for users who prioritize selfie quality or video calling clarity.

This is the rare category where no differentiation exists whatsoever. Both the iQOO Z10 Lite and the Y400 4G run Android 15 and share an identical feature set across every tracked OS attribute — from privacy controls like location and camera/microphone permissions, to usability features like split-screen, Picture-in-Picture, dynamic theming, and offline voice recognition.

Worth noting for both devices equally: neither receives direct OS updates, meaning software upgrades are mediated through Vivo's own update pipeline rather than pushed straight from Google. Users on both phones also miss out on Wi-Fi password sharing and focus modes — minor omissions, but ones some users may notice. On the privacy front, both phones block app tracking and offer on-device machine learning, but neither blocks cross-site tracking at the browser/system level.

This category is a complete tie. There is no basis in the provided data to give either phone an edge in software — a user's OS experience will be functionally identical on both devices.

Battery capacity is identical here — both phones pack a 6000 mAh cell, which comfortably places them in the large-battery tier. At this capacity, most users can expect to stretch well beyond a full day of use without reaching for a charger, regardless of which device they choose.

Where the two diverge is charging speed, and the gap is substantial. The Y400 4G supports 44W fast charging, while the iQOO Z10 Lite is capped at 15W. To put that in perspective, 44W charging can typically replenish a large battery to 50% or more in around 30 minutes, whereas 15W will take considerably longer — often exceeding 2 hours for a full charge. For users who rely on quick top-ups between activities, this is a genuinely impactful real-world difference. Neither phone supports wireless charging, so the wired charging speed is the only avenue for replenishment.

Given the matched battery size, the Y400 4G holds a clear advantage in this category purely on the strength of its 44W charging — nearly three times faster than the Z10 Lite's 15W. Both phones deliver equivalent endurance, but the Y400 4G gets back to full capacity far more quickly.

Stereo speakers are the one audio feature both phones share, ensuring a wider, more immersive soundstage compared to a single-speaker setup. Beyond that, however, the iQOO Z10 Lite pulls meaningfully ahead. It retains a 3.5mm headphone jack — an increasingly rare feature that allows users to connect any wired headphones or earphones without an adapter, with zero latency and no battery dependency. The Y400 4G omits the jack entirely, pushing users toward Bluetooth or USB-C audio solutions.

The Z10 Lite also includes a built-in FM radio, which the Y400 4G lacks. While radio is a niche feature for many, it holds real value for users in areas with strong FM coverage, offering free, offline broadcast audio without consuming mobile data. Neither phone supports high-resolution Bluetooth codecs like aptX HD or LDAC, so wireless audio quality via Bluetooth is on equal footing for both.

For audio versatility, the iQOO Z10 Lite has a clear advantage — the headphone jack alone is a practical differentiator for a broad range of users, and the FM radio adds further utility that the Y400 4G simply cannot match.

The single biggest divide in this category is cellular technology. The iQOO Z10 Lite supports 5G, with a theoretical download speed of 3300 Mbits/s, while the Y400 4G is limited to 4G with a peak of 390 Mbits/s. Beyond raw speed, 5G connectivity is increasingly relevant for network longevity — users who plan to keep their phone for several years will benefit from being on a network that is actively expanding coverage and capacity. The Z10 Lite also runs Bluetooth 5.4 versus the Y400 4G's 5.0, offering marginally improved connection stability and efficiency for wireless peripherals.

The Y400 4G counters with two notable exclusive features. It includes NFC, enabling contactless payments and quick device pairing — a feature many users consider essential for daily convenience and one entirely absent on the Z10 Lite. It also adds a gyroscope, which the Z10 Lite lacks. A gyroscope is important for augmented reality apps, immersive gaming that uses device orientation, and more precise motion sensing beyond what an accelerometer alone can provide.

This category comes down to a genuine trade-off rather than a clean winner. The Z10 Lite leads on future-proof cellular connectivity, while the Y400 4G wins on day-to-day utility through NFC and richer sensor capability. Users who prioritize mobile payments and app compatibility should lean toward the Y400 4G; those who want 5G readiness will find the Z10 Lite the stronger choice.

This is a lean category with limited data points, but one distinction does emerge. Both phones include a video light and skip sapphire glass and e-paper displays — none of which is surprising at this segment. The sole differentiator is that the Y400 4G features a curved display, while the iQOO Z10 Lite uses a flat panel.

A curved screen is primarily an aesthetic and ergonomic choice — it gives the device a more premium, seamless look and can make edge-to-edge swiping feel more natural in hand. The trade-off is that curved displays are generally more vulnerable to edge cracks from drops and can occasionally register unintended touches at the screen's periphery. Flat displays, by contrast, are simpler to protect with standard screen protectors and tend to be more practical for everyday durability.

Whether the curved display counts as an advantage depends entirely on user preference. As a design flourish it lends the Y400 4G a slightly more refined aesthetic, but users who prioritize practicality and ease of screen protection may actually prefer the Z10 Lite's flat panel. Based strictly on the provided data, this category is effectively a draw — the curved display is a stylistic differentiator rather than a clear functional win for either side.