HomeKoolnee Rainbow launched with Android 8.1 Oreo – Review, Specs and Price

Koolnee Rainbow launched with Android 8.1 Oreo – Review, Specs and Price

The Koolnee Rainbow has officially been launched by Kolnee as a budget friendly smartphone running on Android 8.1 Oreo Go edition. The device was launched in three beautiful colors with other colors coming soon, hence the name.

The Rainbow smartphone will be available immediately on shopping stores for a giveaway price. The affordable smartphone packs 8GB of internal storage and 8MP rear camera among other features. Without further ado, meet the Koolnee Rainbow.

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Koolnee Rainbow

Looks plain design-wise but the focus here was on the colors which will be rolled out later on. There’s no rear fingerprint scanner anywhere at the back, which is really disappointing even for a budget smartphone.

Koolnee Rainbow

Just the rear camera and LED flash which are horizontal at the top left corner. Furthermore, the Koolnee logo is also visible at the middle, while the phone measures 8.5mm in thickness. It weighs 150g and available in Gold, Black and Blue colors.


Koolnee Rainbow

The bezels were obviously reduced, but not entirely. Three navigation buttons sits at the bottom bezel for navigating through the phone easily. While the top houses the usual like selfie camera speaker grille and the rest.

The 5-inch HD IPS LCD capacitive touchscreen displays like a budget smartphone. With just 1280 x 720 pixels in resolution and 294 pixel perfect inch density, dishing out normal visuals. Moving further, the screen has a 16:9 aspect ratio and stretches up to 70% screen to body ratio.

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Hardware and Software

Working underneath is the MediaTek MT6580A chip with quad-core processor and 32-bit CPU architecture. The 4-cores of processor runs at a speed of just 1.3GHz with a 28nm process technology. In the graphics department, the ARM Mali-400 MP2 graphics processor comes with 2-cores and clocks at 500MHz.

There’s just 1GB of RAM space available here for multitasking, with a memory speed of 533MHz. For storing files and apps, 8GB is available as well and upgradeable up to 32GB with a memory card. The Koolnee Rainbow smartphone runs on Android 8.1 Oreo Go edition.


The 8MP rear shooter captures just 3K resolution images. The camera comes with a LED flash and other features capturing photographs with 3264 x 2448 pixels in dimension. Record HD videos of 720 pixels at 30 frames per second and take cute selfies with the 5MP selfie camera.

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Powering the Koolnee Rainbow is a 2400mAh non-removable Li-Po battery with no fast charging technology. Without the fast charging feature, it might take more than 2.5 hours to fully charge up the battery from 0% to 100%.


Koolnee Rainbow Full Technical Specifications


Device Type Smartphone
Model Koolnee Rainbow
Announced March, 2018
Released March, 2018
Status Available on Shopping stores


2G Network Yes
3G Network Yes
4G Network No
SIM Type

Nano + Nano

SIM Count Dual SIM


Type Plastic
Dimensions 69.8 x 140.0 x 8.5 mm
Weight 150g
Protection Yes
Colours Gold, Black, Blue


Display Type HD IPS LCD capacitive touchscreen
Size 5-inch
Resolution 1280 x 720 Pixels
Colors 16M colors
Pixel Density 294ppi
Screen-To-Body Ratio 70%
Touch Screen Yes
Protection Yes
Features Multi-touch, Scratch Resistant
Secondary Display No


Continuous shooting 
Digital zoom 
Exposure compensation 
Face detection 
ISO settings 
Scene mode 
Touch focus 
White balance settings
Yes, LED


Android 8.1 Oreo Go
Skype Yes
Whatsapp Yes
Facebook Yes
Youtube Yes


MediaTek MT6580A
CPU Quad-Core 1.3GHz
GPU ARM Mali-400 MP2
Internal Storage 8GB
Yes, up to 32GB


Controls Touchscreen, Lock Button, and Volume Key


Infrared No
Wi-Fi Yes
Wi-fi Hotspot Yes
USB Type Yes, microUSB
GPS Yes, with A-GPS
Facial Recognition No


Battery Type Li-Po Battery
Capacity 2400mAh
Placement Non-removable
Fast Charging No
Talk Time
Music Play


Yes, 3GP, Mp4, MPEG4, H.263, H.264 player
Vibration, Ringtones


Other Features

– MP3/WAV/eAAC+/FlAC player
– Active noise cancellation with dedicated mic
– DivX/Xvid/MP4/H.265 player
– Photo/video editor
– Document viewer

==> Disclaimer: Specifications, features & price shown for the above device was entered manually. We can not guarantee that the info on this page is 100% correct. If you think that any information for the current device is wrong or missing, please don’t hesitate to Contact Us.

What is Koolnee Rainbow Price and Availability Status?

The Koolnee Rainbow is available on Shopping stores starting from $39 (N10,000) to $69 (N20,000). Click on the links above to view the latest Koolnee Rainbow price & availability.

NOTE – if you have difficulties ordering this product yourself, you can contact us on mobile via +2348100482812 or drop your comment below.

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About Author

Samuel Afolabi is a lazy tech-savvy that loves writing almost all tech-related kinds of stuff. He is the Editor-in-Chief of TechVaz. You can connect with him socially :)

2 thoughts on “Koolnee Rainbow launched with Android 8.1 Oreo – Review, Specs and Price”

  1. Apart from the Android 8.1 Oreo android version the koolnee smartphone is powered with they is no much serious convincing features with the smartphone but notwithstanding they at least try by making the smartphone budget friendly

  2. One thing I like more about this phone is the latest software that it comes with, budget device at it’s best. It’s really cool to me.


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