Oukitel C57s

The Oukitel C57s has a standard flat, non-folding form factor with a height of 165.8 mm and a width of 76.6 mm, giving it a fairly tall profile typical of modern budget smartphones. At 9.4 mm thick and 215 g, it sits on the heavier side for its class, with a total volume of approximately 119.38 cm³. The device offers no water resistance and lacks a rugged build, meaning it is not designed to withstand exposure to liquids or harsh physical conditions.

The Oukitel C57s features a 6.52″ IPS LCD touchscreen with a resolution of 576 x 1280 px and a pixel density of 215 ppi, delivering standard clarity for everyday use. The panel is protected by Gorilla Glass 5, offering a reliable level of resistance against scratches and accidental drops. The display does not support HDR10, HDR10+, or Dolby Vision, and there is no Always-On Display mode or secondary screen present.

The Oukitel C57s is driven by the Unisoc SC9863A chipset, built on a 28 nm process with a 3W TDP, and featuring an octa-core CPU split into four cores at 1.6 GHz and four at 1.2 GHz across 8 threads using big.LITTLE technology, with integrated LTE and 64-bit support. Graphics are handled by the PowerVR GE8322 GPU, which runs at 550 MHz with a turbo frequency of 800 MHz, 4 execution units, and 128 shading units, supporting DirectX 11, OpenGL ES 3.2, and OpenCL 2. The device comes with 2 GB of DDR4 RAM at 933 MHz across 2 memory channels with a maximum bandwidth of 7.464 GB/s and a maximum supported memory of 6 GB, paired with 64 GB of eMMC 5.1 internal storage and 0.512 MB of L3 cache. Benchmark results include an AnTuTu score of 154,200, Geekbench 6 multi-core and single-core scores of 725 and 164 respectively, Geekbench 5 multi-core and single-core scores of 2,956 and 901, and PassMark results of 1,327 overall and 478 in the single-core test.

The Oukitel C57s carries a single 13 MP rear camera with an f/2.2 aperture and a CMOS sensor, supporting phase-detection autofocus for stills, continuous autofocus during video recording, and touch autofocus, though optical image stabilization and laser autofocus are absent. Manual controls cover exposure, ISO, focus, and white balance, while burst mode, HDR, panorama, timelapse, and slow-motion video recording are all available; manual shutter speed and RAW capture are not supported. The main camera records video at 1080p and 30 fps, without HDR10 or Dolby Vision recording support, and the rear flash is a single-tone LED unit with no dual-tone or RGB variant. On the front, a 5 MP camera with an f/2.2 aperture handles selfies, with no front-facing flash, secondary lens, or under-display placement.

The Oukitel C57s runs Android 14, a free and open-source platform that supports multi-user access, split-screen multitasking, Picture-in-Picture mode, widgets, and the ability to play games while they download. Privacy features are well represented, including clipboard warnings, location privacy options, camera and microphone access controls, and the ability to block app tracking, though cross-site tracking blocking and Mail Privacy Protection are not available. Customization options include dark mode, dynamic theming, theme customization, and customizable notifications, while practical tools such as full-page screenshots, a media picker, Live Text, extra dim mode, battery health check, offline voice recognition, voice commands, sharing intents, child lock, on-device machine learning, and device tracking are all present. Focus modes, app offloading, Wi-Fi password sharing, Quick Start, and the ability to use the device as a PC are not supported, and the device does not receive direct OS updates from the vendor.

The Oukitel C57s is equipped with a 4300 mAh rechargeable battery that is non-removable and comes with a charger included in the box. A battery level indicator is present, allowing users to monitor remaining charge at a glance. The device does not support fast charging or wireless charging, so all recharging is done via a standard wired connection.

The Oukitel C57s includes a 3.5 mm headphone jack for wired audio and a built-in radio, covering the basics for everyday listening. The device is limited to a single speaker, as stereo output is not supported. On the wireless audio side, none of the advanced Bluetooth codecs are available, with aptX, aptX HD, aptX Adaptive, aptX Lossless, and LDAC all absent.

The Oukitel C57s supports dual SIM cards and connects wirelessly via Wi-Fi 4 (802.11n) and Bluetooth 4.2, while cellular connectivity is handled through a built-in module with download speeds of up to 300 Mbit/s and upload speeds of up to 150 Mbit/s, though 5G is not supported. Wired connectivity is provided through a USB Type-C port running USB 2.0, and there is no HDMI output. Location is covered by GPS and Galileo support, and a fingerprint scanner is present for biometric authentication, while 3D facial recognition and an iris scanner are both absent. The device includes an external memory slot for storage expansion, but lacks NFC, a gyroscope, compass, barometer, infrared sensor, heart rate monitor, ANT+ support, DLNA certification, satellite SOS, crash detection, motion or optical tracking, and a built-in projector, and no stylus is included.

The Oukitel C57s features a video light, which assists with illumination during video recording. The display is flat rather than curved, and neither sapphire glass nor an e-paper panel is used.