Oppo A5i Pro VS Tecno Spark 40C

In terms of overall form factor, both the Oppo A5i Pro and the Tecno Spark 40C are nearly identical in height — 165.7 mm vs 165.6 mm — making them essentially the same tall. The more meaningful difference lies in thickness and width: the A5i Pro is slimmer at 8 mm versus the Spark 40C's 8.4 mm, and slightly narrower at 76.2 mm compared to 77 mm. While these gaps are small in isolation, they compound into a noticeably lower total volume — 101 cm³ for the A5i Pro versus 107 cm³ for the Spark 40C — meaning the Oppo physically displaces about 6% less space. In practice, this translates to a marginally more pocket-friendly and easier-to-grip device.

On water resistance, both phones carry an IP rating, but they are not equal: the A5i Pro holds an IP65 certification, while the Spark 40C is rated IP64. The difference is in the last digit — IP65 guarantees protection against low-pressure water jets from any direction, whereas IP64 only covers water splashes. For everyday scenarios like rain or accidental spills, both are adequate, but the A5i Pro offers a meaningful step up for users who are more frequently exposed to water.

Neither phone has a rugged build or a foldable form factor, so both target the same mainstream, everyday-use segment. Overall, the Oppo A5i Pro holds a clear edge in this group: it is slimmer, more compact by volume, and carries a superior IP rating — three tangible design advantages over the Spark 40C.

The two phones share the same LCD IPS panel technology and an identical 6.67″ screen size, and their pixel densities are virtually indistinguishable — 264 ppi vs 263 ppi — meaning sharpness will look the same in everyday use. The resolution difference (720 x 1604 px on the A5i Pro versus 720 x 1600 px on the Spark 40C) is negligible and not worth factoring into a purchase decision. Neither display supports HDR10, Dolby Vision, or Always-On functionality, so both sit squarely in the budget-tier display category.

Where the two diverge meaningfully is refresh rate and screen durability. The Tecno Spark 40C runs at 120Hz, compared to the A5i Pro's 90Hz. That extra 30Hz makes scrolling, animations, and casual gaming feel noticeably smoother — a genuine everyday benefit that most users will perceive without needing to look for it. On the flip side, the Oppo A5i Pro features branded damage-resistant glass, which the Spark 40C lacks entirely. This coating reduces the likelihood of scratches and surface damage from everyday drops and pocket friction, extending the screen's cosmetic lifespan.

This group essentially presents a trade-off: the Spark 40C wins on fluidity with its higher refresh rate, while the A5i Pro wins on long-term screen durability. For users who prioritize a smoother visual experience, the Tecno Spark 40C has the edge; for those more concerned about protecting their display over time, the Oppo A5i Pro is the stronger choice.

The chipset gap here is substantial. The Oppo A5i Pro runs on the Qualcomm Snapdragon 6 Gen 1, built on a modern 4 nm process, while the Tecno Spark 40C relies on the MediaTek Helio G81 Ultra, an older design manufactured on a 12 nm node. Process size matters because a smaller node delivers more performance per watt and generates less heat — meaning the A5i Pro can sustain higher performance for longer without throttling. The Geekbench 6 scores make the gap concrete: the A5i Pro posts 943 single-core and 2748 multi-core, versus just 420 single-core and 1391 multi-core on the Spark 40C. That is roughly a 2x advantage across the board, which translates directly into faster app launches, snappier multitasking, and smoother gaming.

The memory and graphics subsystems reinforce this picture. The A5i Pro's RAM runs at 2750 MHz DDR5 with a peak bandwidth of 22 GB/s, compared to the Spark 40C's 1800 MHz DDR4 at 13.41 GB/s. Faster memory bandwidth keeps the CPU and GPU fed with data more efficiently — a meaningful advantage when running demanding apps or switching between many tasks. On the GPU side, the A5i Pro's Adreno 710 with 128 shading units significantly outclasses the Spark 40C's Mali G52 MP2 with just 32 shading units, making the difference in graphics-intensive workloads even more pronounced. The A5i Pro also supports up to 12 GB RAM, versus a cap of 8 GB on the Spark 40C, offering more headroom for future-proofing.

The one area where the Spark 40C pulls ahead is internal storage: it offers 256 GB out of the box, double the A5i Pro's 128 GB. For users who store large amounts of media locally, that is a real practical advantage. But in raw processing power, the Oppo A5i Pro holds a decisive and comprehensive performance edge — the Snapdragon 6 Gen 1 platform outpaces the Helio G81 Ultra across CPU, GPU, and memory in every measurable dimension.

The rear camera setup is where these two phones diverge most sharply. The Oppo A5i Pro fields a dual-lens system led by a 50 MP sensor, while the Tecno Spark 40C offers a single 13 MP shooter. Beyond the raw megapixel gap, the A5i Pro's secondary 2 MP lens adds depth-sensing capability for portrait shots. More impactful than pixel count, however, is the A5i Pro's inclusion of optical image stabilization (OIS) — a hardware feature that physically compensates for hand movement during capture. The Spark 40C lacks OIS entirely, meaning low-light and video shots are more susceptible to blur from natural hand shake.

Flip to the front, and the Spark 40C reclaims some ground: its selfie camera clocks in at 8 MP versus the A5i Pro's 5 MP. For users who prioritize video calls or selfie photography, that higher resolution translates to more detail and better cropping flexibility. Beyond this, the two phones are remarkably alike in camera feature sets — both cap video at 1080p at 30 fps, both include phase-detection autofocus, slow-motion recording, HDR mode, and the same suite of manual controls. Neither shoots RAW or supports HDR10 video, keeping both firmly in the mainstream-use category.

Taken together, the Oppo A5i Pro holds a clear advantage on the rear camera — its higher resolution, dual-lens configuration, and OIS give it meaningfully more versatility and image stability for everyday photography. The Spark 40C's stronger front camera is a genuine but narrower win, relevant mainly to selfie-focused users. For most shooting scenarios, the A5i Pro is the stronger camera phone.

Across the entire operating system feature set, these two phones are essentially identical — every single capability listed, from privacy controls and dynamic theming to split-screen, Picture-in-Picture, and offline voice recognition, is shared by both. The one and only differentiator in this group is the Android version: the Oppo A5i Pro ships with Android 16, while the Tecno Spark 40C runs Android 15. That one version gap matters more than it might appear at first glance.

A newer Android release typically brings security patches, refined privacy tooling, performance optimizations, and behavioural improvements to features both phones already share on paper. Even where the feature list looks identical, the underlying implementation on Android 16 is more current — meaning the A5i Pro is starting from a more up-to-date security and compatibility baseline. Importantly, neither phone receives direct OS updates according to the provided data, so whichever version each ships with is likely to be its long-term software foundation. Starting one generation ahead is therefore a more durable advantage than it would be if both received ongoing updates.

Given that the software feature parity is otherwise complete, the Oppo A5i Pro has a clear, if narrow, edge in this group purely by virtue of launching on a newer Android version — giving it a fresher security baseline and greater compatibility headroom from day one.

Both phones pack an identical 6000 mAh battery, which puts them on perfectly equal footing for longevity. At this capacity, users can realistically expect multi-day battery life under moderate usage, and heavy users will comfortably get through a full day without anxiety. Neither device offers wireless or reverse wireless charging, so the comparison comes down entirely to how fast each phone can replenish that large cell.

That is where a meaningful gap emerges. The Oppo A5i Pro supports 45W fast charging, more than double the Tecno Spark 40C's 18W. In practical terms, a 6000 mAh battery at 45W can reach a substantial charge in roughly an hour, whereas 18W will take considerably longer — potentially two to three times as long for a full cycle. For users who forget to charge overnight or need a quick top-up before heading out, that speed difference is felt daily.

Since battery capacity is identical, the Oppo A5i Pro holds a clear advantage in this group on the strength of its faster charging alone. Both phones will last the same amount of time on a charge, but the A5i Pro spends far less time tethered to a cable — a genuine quality-of-life benefit for busy users.

Audio is another category where each phone makes a different bet rather than one simply outclassing the other. The Oppo A5i Pro retains a 3.5 mm headphone jack — an increasingly rare feature that allows users to plug in any wired headphones or earphones without an adapter, making it a practical choice for commuters and anyone with an existing wired audio setup. The Tecno Spark 40C drops the jack entirely but compensates with stereo speakers, which deliver a wider, more immersive soundstage for media consumption compared to a single mono speaker.

On the wireless audio side, the A5i Pro supports aptX, a Qualcomm codec that provides higher-quality Bluetooth audio transmission with reduced latency — beneficial when using compatible wireless headphones for music or video. The Spark 40C offers no comparable wireless audio codec, meaning Bluetooth audio quality is limited to the standard SBC baseline. Neither phone supports LDAC, aptX HD, or any higher-tier codec, and both lack a radio receiver.

This group is a genuine use-case split with no universal winner. Users who rely on wired headphones or prioritize Bluetooth audio fidelity will find the Oppo A5i Pro more accommodating. Those who primarily consume media through the phone's own speakers — watching videos, listening to music without headphones — will get a noticeably richer experience from the Tecno Spark 40C's stereo setup. The right choice depends entirely on listening habits.

Much of the connectivity foundation is shared between these two phones — both support dual SIM, USB Type-C, Wi-Fi 4 and Wi-Fi 5, GPS with Galileo, and a fingerprint scanner, and neither offers 5G. The standout divergence, however, lies in two areas: cellular data speeds and NFC. The Oppo A5i Pro's modem supports download speeds up to 2900 Mbits/s and upload speeds of 900 Mbits/s, compared to just 300 Mbits/s down and 100 Mbits/s up on the Tecno Spark 40C. While real-world LTE speeds are always capped by the carrier's network, a faster modem means the A5i Pro can better exploit high-performance 4G networks when they are available — benefiting users in areas with strong LTE infrastructure.

The other key differentiator is NFC, which the A5i Pro includes and the Spark 40C does not. NFC enables contactless payments, quick Bluetooth pairing, and data transfer with compatible devices — functionality that has become a routine expectation for many users, particularly for mobile payments. Its absence on the Spark 40C is a tangible limitation for anyone embedded in an NFC-dependent workflow.

With faster modem speeds and NFC both falling in the same direction, the Oppo A5i Pro holds a clear and well-rounded connectivity advantage in this group. The Spark 40C matches it on the basics but falls short on two features that have concrete, everyday relevance.

The miscellaneous spec group for these two phones is a complete dead heat — every data point is identical. Both include a video light, and neither features sapphire glass, a curved display, or an e-paper screen. There is simply nothing in this category that separates one device from the other.

This group is an unambiguous tie, and it carries no weight in the overall comparison between the Oppo A5i Pro and the Tecno Spark 40C. Prospective buyers should look to the other spec groups — performance, cameras, connectivity, and design — to inform their decision.