Cubot KingKong ES 3 VS Infinix Note 50 Pro 4G

These two phones represent fundamentally different design philosophies. The Cubot KingKong ES 3 is built as a rugged device, and its numbers reflect that: at 352 g and 15.3 mm thick, it is more than twice as heavy and more than twice as thick as the Infinix. Its volume of 227.18 cm³ versus the Infinix's 88.69 cm³ means it is roughly 2.5× bulkier overall. In day-to-day use, this translates to a noticeably heavy, tank-like handset that will dominate a pocket and may cause fatigue during extended one-handed use.

The protection gap is the most practically significant differentiator in this group. The KingKong ES 3 carries an IP68 rating with a fully waterproof designation, meaning it can withstand submersion in water — typically beyond one metre for extended periods. The Infinix Note 50 Pro 4G, rated IP64, is only splash- and dust-resistant; it can handle water jets from any direction but must not be submerged. For users who work outdoors, in wet environments, or need a genuinely durable device, this is a decisive difference.

The Infinix Note 50 Pro 4G holds a clear edge in everyday ergonomics: at 198 g and just 7.3 mm thin, it sits comfortably in a slim, mainstream-smartphone form factor. Unless ruggedness and deep water protection are explicit requirements, most users will find the Infinix significantly more comfortable to carry and handle. The KingKong ES 3's bulk is a deliberate trade-off for durability — worth it in demanding conditions, but a real usability cost in normal daily life.

The display gap between these two phones is substantial. The Infinix Note 50 Pro 4G uses an OLED/AMOLED panel, which delivers true blacks, higher contrast, and more vibrant colours than the KingKong ES 3's LCD IPS screen — a technology difference that is immediately visible when watching video or viewing photos. More telling still is the pixel density: 393 ppi on the Infinix versus 260 ppi on the Cubot, the result of a full 1080 x 2436 resolution against a modest 720 x 1600. At typical viewing distances, text and fine detail will appear noticeably crisper on the Infinix.

Motion handling also favours the Infinix decisively. Its 144Hz refresh rate produces smoother scrolling and more fluid gaming animations compared to the KingKong ES 3's 90Hz panel. Additionally, the Infinix supports an Always-On Display, a small but genuinely useful convenience for glancing at notifications without waking the screen — made power-efficient precisely because OLED only lights active pixels. The Cubot offers neither feature.

The one area where the KingKong ES 3 pushes back is glass protection: it ships with branded damage-resistant glass, while the Infinix does not specify any equivalent protection. For a rugged-use context this matters, but in terms of overall display quality and experience, the Infinix Note 50 Pro 4G holds a commanding and clear advantage across every meaningful display metric.

Under the hood, the Infinix Note 50 Pro 4G pulls ahead on every core performance metric. Its MediaTek Helio G100, built on a 6 nm process, is a full generation ahead of the KingKong ES 3's Unisoc T615 at 12 nm. A smaller node means more transistors per area, translating into higher computational throughput and, critically, better power efficiency. The CPU clock speeds reinforce this: the Infinix's cores run at up to 2.2 GHz versus the Cubot's 1.8 GHz peak, which compounds the raw performance gap in CPU-bound tasks like app loading, multitasking, and processing-heavy applications.

RAM is another area of clear separation. The Infinix ships with 12 GB of RAM running at 4266 MHz, while the KingKong ES 3 provides 6 GB at 1866 MHz — less than half the memory bandwidth. In practice, more RAM at higher speeds means more apps can stay loaded in the background simultaneously, and data moves between memory and the processor far more quickly. The GPU clock speed difference follows the same pattern: 1000 MHz on the Infinix against 850 MHz on the Cubot, favouring the Infinix in graphics-intensive tasks and gaming.

One genuinely interesting counter-point is thermal efficiency. The KingKong ES 3 carries a 10W TDP against the Infinix's 5W, meaning the Cubot's chip dissipates twice as much heat under load despite delivering less performance — a direct consequence of its older, less efficient process node. Both phones share 256 GB of internal storage and identical thread counts, but those similarities do little to close the gap. Overall, the Infinix Note 50 Pro 4G holds a commanding performance advantage, offering faster processing, double the RAM, significantly higher memory bandwidth, and a more thermally efficient chipset.

Both phones field dual rear cameras and share a solid common base: phase-detection autofocus, continuous autofocus during video, HDR mode, and a comparable suite of manual controls. The main lens resolution is close — 50 MP on the Infinix versus 48 MP on the Cubot — but the secondary camera tells a more meaningful story. The Infinix pairs its main sensor with an 8 MP secondary lens, while the KingKong ES 3's secondary drops to just 2 MP, a resolution so low it contributes little beyond depth sensing for portrait effects.

Two features decisively separate the Infinix in real-world shooting. First, it includes optical image stabilization (OIS), which the Cubot lacks entirely. OIS physically compensates for hand movement during capture, producing noticeably sharper handheld shots in low light and significantly smoother video footage — an advantage no software processing can fully replicate. Second, the Infinix supports slow-motion video recording and a timelapse function, neither of which are available on the KingKong ES 3, expanding its creative range for video-oriented users. The Infinix also carries a two-LED flash versus the Cubot's single LED, which typically provides more even and powerful illumination in dark environments.

On the front camera, the gap widens further: the Infinix offers a 32 MP selfie sensor against the Cubot's 16 MP, doubling the pixel count for portrait and video-call clarity. Taking everything together, the Infinix Note 50 Pro 4G holds a clear camera advantage, particularly due to OIS, the stronger secondary lens, and the broader video feature set.

Rarely in a product comparison does a spec group produce a complete tie, but that is exactly the case here. Both the Cubot KingKong ES 3 and the Infinix Note 50 Pro 4G run Android 15 and share an identical feature set across every single data point in this group — from privacy controls like location and camera/microphone permissions, to productivity features like split-screen, Picture-in-Picture, and widgets, to quality-of-life additions like dark mode, dynamic theming, and battery health check.

The shared strengths are worth noting for buyers coming from other platforms: both phones offer on-device machine learning, offline voice recognition, Live Text, and app tracking controls — a well-rounded Android 15 foundation that covers the vast majority of daily software needs. Neither phone receives direct OS updates, which is the one area where both fall short equally, meaning long-term software support will depend entirely on the manufacturers' own update schedules rather than a guaranteed pipeline.

With no differentiating data point across the entire group, this category is a complete tie. A buyer's software experience will be effectively identical on both devices, and this group should carry no weight in any purchase decision between the two.

Battery capacity is where the Cubot KingKong ES 3 makes its most dramatic statement. Its 10200 mAh cell is nearly double the Infinix Note 50 Pro 4G's 5200 mAh, and in raw endurance terms that gap is real: under similar usage conditions, the Cubot should last significantly longer between charges, making it a compelling option for users who are away from a power source for extended periods — field workers, travellers, or anyone who simply dislikes charging daily.

The Infinix counters with a charging system that is far more capable. Its 90W fast charging will replenish the 5200 mAh cell in a fraction of the time it takes the Cubot's 33W charger to work through a battery nearly twice as large. Beyond wired speed, the Infinix also supports wireless charging and reverse wireless charging — neither of which the KingKong ES 3 offers at all. Reverse wireless charging is particularly useful as it turns the phone into a pad for topping up earbuds or a friend's device in a pinch.

This group presents a genuine trade-off rather than a clear winner. The Cubot KingKong ES 3 wins outright on endurance — its massive battery is purpose-built for users who prioritise going the distance. The Infinix Note 50 Pro 4G wins on charging versatility, offering faster refuelling and wireless convenience that suits users who are near outlets regularly but want the flexibility of cutting the cord. The right choice depends entirely on which constraint matters more: time between charges, or time spent charging.

Audio is a lean category for both phones, but the Infinix Note 50 Pro 4G edges ahead on the two points that matter most for everyday listening. It features stereo speakers, which the KingKong ES 3 lacks — a meaningful difference when watching videos, playing games, or listening to music without headphones. Stereo output creates a sense of width and spatial separation that a single mono speaker simply cannot replicate, regardless of its volume.

The Infinix also includes a built-in radio, a feature that remains genuinely useful in areas with patchy data coverage or during emergencies when network infrastructure may be unavailable. The Cubot offers neither stereo speakers nor radio. Both phones omit a 3.5 mm headphone jack, so wired audio requires an adapter or a USB-C solution on either device — a shared limitation worth flagging for users who rely on traditional wired headphones.

Neither phone supports advanced Bluetooth audio codecs such as aptX or LDAC, so high-resolution wireless audio is off the table for both. Given the limited data in this group, the Infinix Note 50 Pro 4G holds a modest but clear advantage — stereo speakers and FM radio are tangible, everyday features that the Cubot simply does not offer.

On the fundamentals — dual SIM, USB-C, NFC, Wi-Fi 4/5, GPS, and a fingerprint scanner — these two phones are evenly matched. The more telling differences emerge in the details. The Infinix Note 50 Pro 4G runs Bluetooth 5.4 versus the KingKong ES 3's Bluetooth 5.0; the newer version brings improved connection stability, lower latency, and better handling of multiple simultaneous device connections, which matters for users who switch frequently between wireless earbuds, speakers, and other peripherals.

Download speed is another meaningful gap. The Infinix supports up to 650 Mbits/s on LTE, more than double the Cubot's 300 Mbits/s ceiling. In areas with a strong 4G signal, this translates to noticeably faster large file downloads, smoother high-quality video streaming, and snappier cloud backups. Upload speeds are identical at 150 Mbits/s for both. The Infinix also includes a gyroscope and a heart rate monitor, neither of which are present on the Cubot. The gyroscope is essential for augmented reality apps and precise motion-based gaming, while the heart rate monitor adds a basic but useful wellness tracking capability without needing a separate wearable.

Taken together, the shared connectivity foundation is solid on both devices, but the Infinix pulls ahead on every point of differentiation in this group. The Infinix Note 50 Pro 4G holds a clear edge thanks to its faster cellular speeds, newer Bluetooth version, and the added sensor capabilities that broaden what the phone can do beyond pure communication.

The Miscellaneous group offers no grounds for differentiation whatsoever. Both the Cubot KingKong ES 3 and the Infinix Note 50 Pro 4G share identical values across every data point here: both have a video light, and neither features sapphire glass, a curved display, or an e-paper display. This is a complete tie, and this group should carry no weight in a purchase decision between the two devices.