The Wiko Rainbow Jam, released in September 2015, is a smartphone that caters to users who seek practicality and affordability in their mobile experience. It emerged during a time when smartphones were steering towards more advanced features, balancing cost-effectiveness with decent functionality.
The Rainbow Jam boasts a compact design with dimensions of 142.5 x 71.6 x 9.3 mm and a weight of 159 grams. This makes it a reasonably lightweight and easy-to-carry device. It includes a dual-SIM feature (Micro-SIM, dual standby) that is useful for those needing separate lines for work and personal use. The device was made available in various colors, including Black, White, Bleen, Coral, and Blue, offering users some personalization choices.
The smartphone sports a 5.0-inch IPS LCD display with a screen resolution of 720 x 1280 pixels, translating to a pixel density of approximately 294 ppi. This ensures that images and text appear crisp and clear, an adequate setup for everyday use like browsing and casual video streaming, though it doesn't reach the high-end clarity seen in more expensive models.
Under the hood, the Rainbow Jam is powered by a Mediatek MT6580 chipset, built on a 28 nm process. It is driven by a quad-core 1.3 GHz Cortex-A7 CPU paired with a Mali-400MP2 GPU. While this setup is not designed for high-performance tasks or gaming, it sufficiently handles general tasks like social media, light browsing, and communication apps. However, users may experience slowdowns with more demanding applications due to the processor and limited RAM.
The device comes with 1GB of RAM, which might limit multitasking abilities. The internal storage is 8GB, though it’s expandable via a microSDXC slot, offering a cost-effective way to store more apps, photos, and media files.
The main camera is an 8 MP shooter featuring autofocus, LED flash, panorama, and HDR capabilities. It can record videos at 1080p@24fps, which is satisfactory for capturing moments. The front camera is 5 MP, sufficient for video calls and basic selfies, though it lacks the detailed quality seen in higher-end devices.
The Rainbow Jam is equipped with stereo loudspeakers and a 3.5mm audio jack, catering to users who prefer traditional wired headphones. Connectivity options include Wi-Fi 802.11 b/g/n, Wi-Fi Direct, hotspot, Bluetooth 4.0 with A2DP, GPS, and FM radio. It uses a microUSB 2.0 port with OTG support, allowing for external storage connections.
Inside, a removable 2500 mAh Li-Ion battery powers the device. According to manufacturer data, it offers up to 336 hours of standby time on both 2G and 3G networks, and talk times of 23 hours (2G) or 20 hours (3G). This is competitive for its class, providing a decent lifespan for daily use without frequent charging.
The Rainbow Jam runs on Android 5.1 Lollipop. Despite its age, Lollipop offers a user-friendly interface with access to a substantial library of applications on Google Play. However, users may find certain app compatibility issues due to newer apps requiring more recent Android versions.
Sensors included are an accelerometer and a proximity sensor, essential for basic smartphone functionality like auto-rotation and power saving during calls. The lack of advanced sensors such as a gyroscope or fingerprint scanner reflects its budget positioning.
The Wiko Rainbow Jam was positioned as an entry-level smartphone, ideal for users seeking basic functionality without an extravagant price tag. Although it’s been discontinued, its specification sheet shows it was well-suited for everyday activities and reasonable in terms of value, yet lacking modern features that newer models offer. For legacy users or collectors, it signifies a piece of mobile history where practicality met affordability in the smartphone market.
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