Oppo A5 4G VS Vivo Y04

In terms of physical footprint, the Oppo A5 4G is the more compact of the two: it is slightly shorter, narrower, and thinner (8 mm) compared to the Vivo Y04 (8.2 mm thick), resulting in a noticeably smaller overall volume (101 cm³ vs 105.6 cm³). Combined with a weight of 193 g against the Y04's 199 g, the A5 4G will feel marginally more pocketable and less tiring during extended one-handed use — a real, if subtle, ergonomic advantage.

The more meaningful differentiator, however, is the IP rating. Both phones are water resistant, but the Oppo A5 4G carries an IP65 certification while the Vivo Y04 holds only IP64. The final digit is what matters here: a ″5″ rating means the device can withstand sustained, low-pressure water jets from any direction, whereas a ″4″ only guarantees protection against water splashing. In practice, the A5 4G offers more confidence in rain or near a sink, while the Y04 is better treated as splash-resistant only.

Neither device has a rugged build or a foldable form factor, so neither stands out in those respects. Overall, the Oppo A5 4G holds a clear edge in this group: it is lighter, slimmer, and — more importantly — better protected against water ingress thanks to its superior IP65 rating.

Both phones share the same panel technology — an LCD IPS display with a 90Hz refresh rate — so the smoothness of scrolling and everyday animations will feel identical between them. The screen sizes are also nearly equivalent (6.67″ on the Oppo A5 4G vs 6.74″ on the Vivo Y04), a difference too small to notice in daily use. Pixel density follows suit: 264 ppi vs 260 ppi, both at HD+ resolution, meaning sharpness is essentially indistinguishable to the naked eye.

Where the two diverge is screen durability. The Oppo A5 4G ships with branded damage-resistant glass, while the Vivo Y04 does not. This matters more than it might seem — scratch and crack resistance directly affects how the display holds up over months of pocket use, and the absence of protective glass on the Y04 means the screen is more vulnerable to everyday wear and accidental drops.

Neither display supports advanced HDR formats or Always-On functionality, so those are non-factors in this comparison. The verdict here goes to the Oppo A5 4G: with near-identical panel quality and size, its damage-resistant glass is a tangible, real-world advantage that the Vivo Y04 simply cannot match.

The performance gap between these two phones is substantial. The Oppo A5 4G is powered by the Qualcomm Snapdragon 6 Gen 1, built on a modern 4 nm process, while the Vivo Y04 runs on the Unisoc T612, manufactured on an older 12 nm node. A smaller process node means the chip runs cooler and more efficiently — in practice, the A5 4G will handle sustained workloads with less throttling and better battery efficiency than the Y04.

The RAM and storage story reinforces this divide. The A5 4G pairs its faster chipset with 8 GB of DDR5 RAM at 2750 MHz and 256 GB of internal storage, versus the Y04's 4 GB of DDR4 RAM at 1866 MHz and just 128 GB of storage. More RAM at faster speeds directly translates to smoother multitasking and fewer app reloads. Meanwhile, the GPU gap is equally stark: the Adreno 710 on the A5 4G has 128 shading units and supports DirectX 12, compared to only 32 shading units and DirectX 11 on the Y04's Mali G57 — meaning noticeably better gaming performance and graphical headroom on the Oppo.

This is one of the clearest performance mismatches in the comparison. The Oppo A5 4G wins this category decisively across every meaningful dimension — chipset efficiency, memory speed and capacity, GPU capability, and storage — making it the far stronger choice for anyone who cares about day-to-day responsiveness or light gaming.

The most significant difference in this category comes down to the main camera setup. The Oppo A5 4G features a dual-lens rear camera with a 50 MP primary sensor, while the Vivo Y04 relies on a single 13 MP shooter. More megapixels mean the A5 4G captures considerably more detail, giving users greater flexibility when cropping shots or printing at larger sizes. The secondary 2 MP depth sensor on the A5 4G also enables more capable portrait and bokeh modes — something the Y04 cannot replicate with its single-lens setup.

One nuance worth noting is aperture: the Vivo Y04's lone lens opens to f/2.2, which is wider than the Oppo's primary lens at f/2.4. A wider aperture lets in more light, which can be an advantage in low-light conditions. However, the A5 4G partially compensates with its secondary lens at f/1.8. Beyond this, the two phones are functionally identical across video, autofocus, and manual controls — both cap out at 1080p at 30fps, support phase-detection autofocus, slow-motion, HDR mode, and the same suite of manual shooting options.

Front camera performance is a dead heat: both offer 5 MP at f/2.2 with the same feature set. Overall, the Oppo A5 4G holds a clear advantage in this group — its higher-resolution main sensor and dual-lens versatility give it a meaningful edge over the Y04's more basic single-camera system.

Across the vast majority of software features, these two phones are identical — both run Android with dynamic theming, dark mode, split-screen, Picture-in-Picture, on-device machine learning, and a comprehensive set of privacy controls. The practical day-to-day software experience will feel largely the same for most users.

Two differences do stand out, however. First, the Oppo A5 4G ships with Android 15 while the Vivo Y04 runs Android 14. A newer Android version means access to the latest security patches and system-level improvements from day one — and since neither device receives direct OS updates, whichever version they launch with is likely what users will live with long-term, making the A5 4G's head start meaningful. Second, the A5 4G supports app offloading — the ability to free up storage by removing an app's files while retaining its data and settings — a useful tool on a storage-constrained device that the Y04 lacks entirely.

Neither difference is transformative on its own, but together they give the Oppo A5 4G a modest but genuine software edge: a more current OS foundation and one extra storage management tool that the Vivo Y04 simply does not offer.

Battery capacity favors the Oppo A5 4G at 6000 mAh, compared to the Vivo Y04's 5500 mAh. That 500 mAh advantage is meaningful in practice — all else being equal, it translates to a noticeable buffer of extra screen-on time, particularly for heavy users who stream video or browse for extended periods. Neither phone is likely to struggle to last a full day, but the A5 4G offers more headroom for power users.

The charging speed gap is even more consequential. The A5 4G supports 45W fast charging, while the Y04 tops out at just 15W. At 45W, the A5 4G can recover a significant portion of its larger battery in a short time, whereas the Y04's 15W charging means noticeably longer waits to reach a full charge — a real inconvenience if you regularly find yourself plugging in mid-day. Neither device supports wireless charging, so that is a non-factor.

The Oppo A5 4G wins this category convincingly on both fronts — it carries a larger battery and charges it nearly three times faster, making it the stronger choice for anyone who prioritizes endurance and convenience.

Audio is the one category where the two phones genuinely trade blows rather than one clearly dominating. Both feature stereo speakers, so speaker output is on equal footing. The split comes down to wired vs. wireless audio priorities: the Vivo Y04 includes a 3.5 mm headphone jack and a built-in FM radio, while the Oppo A5 4G drops the jack entirely but adds support for aptX Bluetooth audio codec.

The headphone jack on the Y04 is a genuine advantage for users who own wired headphones or earphones — it means no adapters, no charging a wireless accessory, and typically lower latency during media playback. The FM radio is a niche but useful perk for users in areas with good broadcast coverage. The A5 4G counters with aptX, which delivers higher-quality Bluetooth audio than standard codecs — a meaningful benefit for wireless headphone users, but only relevant if your headphones also support aptX.

This is a rare tie shaped entirely by user preference. If you rely on wired headphones or value a radio, the Vivo Y04 is the better fit. If you have gone fully wireless and want better Bluetooth audio fidelity, the Oppo A5 4G has the edge. Neither phone holds an outright advantage here — it comes down to how you personally consume audio.

On the surface, these two phones share much of the same connectivity foundation — identical Wi-Fi support (Wi-Fi 4 and 5), dual SIM, USB Type-C 2.0, expandable storage, and GPS with Galileo. But dig into the details and meaningful differences emerge. The Vivo Y04 edges ahead on Bluetooth, offering version 5.2 versus the A5 4G's 5.0 — a newer revision that brings improvements to connection stability and audio synchronization, relevant particularly for wireless headphone users.

The more impactful differences, however, favor the Oppo A5 4G. It includes NFC, enabling contactless payments and quick device pairing — a feature entirely absent on the Y04. It also lists dramatically higher cellular speeds: 2900 Mbits/s download and 900 Mbits/s upload, compared to the Y04's 300 Mbits/s and 100 Mbits/s. While real-world speeds depend on carrier infrastructure, the A5 4G's modem has significantly more headroom for fast LTE networks. Additionally, the A5 4G has a digital compass — useful for navigation apps — which the Y04 lacks.

Taken together, the Oppo A5 4G holds a clear overall advantage in this group. NFC alone is a feature many users consider non-negotiable for mobile payments, and its faster modem and compass further extend its lead. The Y04's newer Bluetooth version is a genuine but minor counterpoint that does not offset the broader connectivity gap.

The Miscellaneous category offers no basis for differentiation between these two devices. Both the Oppo A5 4G and the Vivo Y04 share an identical feature set here: both include a video light, and neither has a sapphire glass display, a curved screen, or an e-paper display.

This is a complete tie. Based strictly on the provided specs, there is nothing in this group that gives either phone an advantage over the other.