Oppo A5 Pro (Global) VS Vivo Y400 Pro 5G

In terms of physical form, these two phones are remarkably close. The Oppo A5 Pro measures 164.8 × 75.5 × 7.8 mm against the Vivo Y400 Pro 5G's 163.8 × 75 × 7.7 mm — a difference so marginal that most users would never notice it in hand. Neither device has a rugged build or a foldable form factor, so both occupy the same conventional smartphone category.

Where the two genuinely diverge is on water protection. The Oppo A5 Pro carries an IP68 rating, meaning it is fully waterproof and can withstand submersion in water beyond a brief splash — typically up to 1.5 m for 30 minutes. The Vivo Y400 Pro 5G is rated IP65, which certifies protection against low-pressure water jets and dust ingress, but does not cover submersion. In practice, IP68 gives significantly greater peace of mind for accidental drops in sinks, pools, or rain exposure. The other meaningful difference is weight: the Vivo is noticeably lighter at 182 g versus 194 g for the Oppo — a 12 g gap that, while modest on paper, can be perceptible during extended one-handed use.

Overall, the design category presents a genuine trade-off. The Vivo Y400 Pro 5G has the edge in ergonomics thanks to its lower weight and marginally slimmer profile. However, the Oppo A5 Pro holds a clear and meaningful advantage in durability: IP68 waterproofing is a substantively superior standard that offers real-world protection the Vivo's IP65 cannot match. For users who prioritize durability and water protection, the Oppo wins this category outright.

The display is where these two phones diverge most sharply. The Vivo Y400 Pro 5G uses an OLED/AMOLED panel, while the Oppo A5 Pro relies on an LCD IPS screen — a fundamental technology gap that cascades into several real-world differences. OLED panels produce true blacks by switching off individual pixels, deliver richer contrast, and are generally more power-efficient at lower brightness levels. The Oppo's LCD, by contrast, uses a backlight that remains always-on, resulting in less punchy blacks and a visually flatter image overall.

The pixel density gap reinforces this advantage further. The Vivo's 1080 × 2392 px resolution across a 6.77″ screen yields 388 ppi, while the Oppo's 720 × 1604 px resolution on a 6.67″ screen produces just 264 ppi. That 124 ppi difference is clearly perceptible — text edges, fine UI details, and images will look noticeably crisper on the Vivo. The Vivo also supports HDR10 and includes an Always-On Display, both absent on the Oppo. HDR10 enables richer color rendering in compatible streaming content, while Always-On Display allows time and notifications to be visible without a full screen wake. Both phones share a 120Hz refresh rate, so scrolling and animation smoothness are equivalent.

The display category is a decisive win for the Vivo Y400 Pro 5G. The combination of a superior panel technology, substantially higher pixel density, HDR10 support, and Always-On Display leaves the Oppo A5 Pro with no meaningful counter-argument in this group. For any user who spends significant time watching content, browsing, or simply values screen quality, the Vivo holds an unambiguous advantage.

Both phones ship with 8GB of RAM and 256GB of storage, but beneath that surface-level parity lies a meaningful silicon gap. The Oppo A5 Pro runs on the MediaTek Dimensity 6300, a 6 nm chip, while the Vivo Y400 Pro 5G is powered by the MediaTek Dimensity 7300, built on a more advanced 4 nm process. A smaller node generally translates to better power efficiency and thermal management — meaning the Vivo can sustain performance under load with less heat and battery drain.

The benchmark data makes the performance gap concrete. The Vivo's Geekbench 6 multi-core score of 2932 and single-core score of 1026 comfortably outpace the Oppo's 2012 and 782 respectively — roughly a 46% multi-core and 31% single-core advantage. In everyday terms, this means snappier app launches, smoother multitasking, and better handling of demanding workloads on the Vivo. The GPU clock advantage (1047 MHz vs 950 MHz) extends this edge into gaming and graphically intensive tasks. Compounding these differences, the Vivo uses DDR5 RAM running at 6400 MHz, compared to the Oppo's DDR4 at 2133 MHz — a substantial memory bandwidth improvement that benefits multitasking and data-heavy operations. The Vivo also supports a higher maximum memory ceiling of 16GB versus 12GB on the Oppo.

Performance is a clear and multi-dimensional win for the Vivo Y400 Pro 5G. Every meaningful metric — chip generation, process node, benchmark scores, GPU speed, and memory technology — favors the Vivo. For users who care about longevity, gaming, or simply keeping more apps active simultaneously, the Vivo's hardware foundation is demonstrably stronger.

On the rear camera system, these two phones are spec-for-spec identical: both feature a 50 MP + 2 MP dual-lens setup with CMOS sensors, phase-detection autofocus, continuous autofocus during video, slow-motion recording, HDR mode, and the same suite of manual controls. Neither offers optical image stabilization or optical zoom, and both share the same omissions across advanced features like RAW capture and HDR10 recording. For practical purposes, users can expect a near-identical rear camera experience on paper from both devices.

The only differentiator in this entire category is the front camera. The Vivo Y400 Pro 5G equips a 32 MP selfie shooter, compared to just 8 MP on the Oppo A5 Pro — a fourfold resolution advantage. Higher megapixel counts on front cameras allow for more detail in selfies, greater flexibility when cropping, and better performance in video calls where fine facial detail matters. For users who frequently take selfies or participate in video calls, this gap is tangible and significant.

Given the complete parity on the main camera and the sole meaningful difference sitting firmly in the Vivo's favor, the Vivo Y400 Pro 5G takes a narrow but clear edge in this category. It offers nothing less than the Oppo in rear photography while delivering a substantially more capable front-facing camera.

Across every single specification in this category, the Oppo A5 Pro (Global) and the Vivo Y400 Pro 5G are a perfect match. Both run Android 15, support the same privacy controls — including location, camera, and microphone permissions as well as app tracking blocks — and share an identical feature set spanning dark mode, dynamic theming, split-screen multitasking, Picture-in-Picture, widgets, offline voice recognition, and battery health monitoring, among others.

Notably, neither device receives direct OS updates from Google, meaning both rely on their respective manufacturers for software patches and version upgrades — a shared limitation worth keeping in mind for long-term software support expectations. Shared omissions like the absence of Wi-Fi password sharing, cross-site tracking blocking, and focus modes are likewise symmetrical, so neither phone gains any advantage from what is missing.

This category is an absolute tie. The provided specs reveal no differentiating factor whatsoever between the two devices on the software front — every capability and every gap is identical. A buyer's decision in this group should carry no weight either way.

Battery is the one category in this comparison where both phones trade blows rather than one simply dominating the other. The Oppo A5 Pro carries a larger 5800 mAh cell versus the Vivo Y400 Pro 5G's 5500 mAh — a 300 mAh difference that, all else being equal, would give the Oppo a modest edge in raw endurance between charges. For users who are away from a charger for extended periods, a larger capacity is always a passive advantage.

Charging speed, however, tells the opposite story. The Vivo supports 90W fast charging against the Oppo's 45W — exactly double the wattage. In practical terms, this means the Vivo can replenish its battery in roughly half the wall time of the Oppo. For users with busy schedules who rely on short charging windows, that speed advantage is highly tangible. Neither phone offers wireless charging, so both are limited to wired top-ups.

This category comes down to a genuine lifestyle trade-off. The Oppo A5 Pro suits users who prioritize lasting as long as possible on a single charge, while the Vivo Y400 Pro 5G is the better fit for those who charge frequently and need to top up quickly. On balance, the Vivo's 90W charging is the more impactful differentiator in day-to-day use — fast charging fundamentally changes charging behavior in a way that a 300 mAh capacity difference typically does not — giving it a slight practical edge in this group.

Audio is the most straightforward category in this comparison: the Oppo A5 Pro (Global) and the Vivo Y400 Pro 5G are identical across every available data point. Both feature stereo speakers, neither supports any high-resolution Bluetooth audio codec — no aptX, LDAC, aptX HD, or any variant — and neither includes a built-in radio.

The absence of high-res wireless audio codecs means that users pairing either phone with premium Bluetooth headphones will be limited to standard audio compression, which is a shared limitation rather than a differentiator. The presence of stereo speakers on both is a meaningful baseline feature for media consumption, offering a wider soundstage than mono alternatives, but again this advantage is equal across both devices.

With no differentiating spec anywhere in this group, the audio category is a complete tie. Neither phone offers an advantage over the other, and this group should have no bearing on a buyer's decision between the two.

The connectivity foundations of these two phones are broadly aligned — both support 5G, dual SIM, NFC, USB Type-C, Wi-Fi 5, GPS with Galileo, and a fingerprint scanner. Download speeds are virtually identical at 3300 vs 3270 Mbits/s, and both use USB 2.0, so neither has an edge in wired data transfer. Where things get interesting is in a handful of specific features that cut in opposite directions.

The Oppo A5 Pro holds a practical advantage with its external memory slot, which the Vivo Y400 Pro 5G lacks entirely. For users who want to expand storage affordably or transfer files via microSD, this is a meaningful real-world convenience the Vivo simply cannot offer. Conversely, the Vivo gains the edge in motion sensing by including a gyroscope — absent on the Oppo — which is essential for features like AR applications, immersive gaming that uses tilt controls, and accurate screen rotation. The Vivo also edges ahead on Bluetooth 5.4 versus the Oppo's 5.3, a minor generational step that brings marginal improvements to connection efficiency, though this difference is unlikely to be perceptible in everyday use.

This category ends as a split decision with no outright winner. The Oppo A5 Pro is the better choice for users who rely on expandable storage, while the Vivo Y400 Pro 5G has the advantage for those who value motion-sensitive applications and gaming. Neither difference is trivial, but both are niche enough that the ″right″ phone here depends entirely on individual usage patterns.

This is a lean category with only one meaningful differentiator. Both phones include a video light and neither features sapphire glass or an e-paper display — three shared data points that require no further analysis. The single distinguishing spec is that the Vivo Y400 Pro 5G has a curved display, while the Oppo A5 Pro uses a flat panel.

A curved display is primarily an aesthetic and ergonomic choice. The gentle edge curvature can make a device feel more premium in hand and visually sleeker, with content appearing to flow toward the sides of the screen. The trade-off, which falls outside the provided data, is not something that can be assessed here — but based strictly on what is specified, the curved design is a feature the Vivo has and the Oppo does not.

With only one differentiating spec available, the Vivo Y400 Pro 5G takes a narrow edge in this category solely on the strength of its curved display. Whether that design choice is appealing or not is a matter of personal preference, but as a distinct feature absent on the Oppo, it gives the Vivo the only point of distinction this group offers.