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Koolnee Rainbow (2018) review

Android OS v8.1 (Oreo)
Mediatek MT6580A
Mali-400 MP2
1 GB / 8 GB
5 inches (720 x 1280 px)
8 MP, 3264 x 2448 px, autofocus

Koolnee announced the launch of the Rainbow smartphone in 2018. The manufacturer is offering the Koolnee Rainbow phone with 5 inches display, Mediatek MT6580A chipset, 1 GB of RAM and 8 GB of internal storage.

The Koolnee Rainbow comes with Android OS v8.1 (Oreo) out of the box, and a Li-Po 2400 mAh battery. The 5 inches phone comes with IPS display (720 x 1280 px). The IPS display provides enhanced features, such as optimal viewing angles, color accuracy, invariable color reproduction and better power consumption.

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Koolnee Rainbow specifications

BrandKoolnee
NameRainbow
ModelRAINBOW
Release date2018

Body

Colorsblack, blue, gold
SIM typeNano SIM

System

The Koolnee Rainbow comes with Android OS v8.1 (Oreo) out of the box, but it is upgradable to the next OS.

OS versionAndroid OS v8.1 (Oreo)
SoCMediatek MT6580A
CPUQuad-core 1.3 GHz Cortex-A7
GPUMali-400 MP2

Display

The size of Rainbow screen is measured diagonally, from corner to corner. The 5 inches IPS display of Koolnee Rainbow with 720 x 1280 px resolution is multitouch capable.

Display typeIPS
Screen size5 inches
Resolution720 x 1280 px
Multitouch supportyes

Memory

The internal memory of Koolnee Rainbow (1 GB) cannot be expanded, but the internal storage (8 GB) can be expanded with a compatible microSD card.

RAM1 GB
Internal storage8 GB
Memory card slotmicroSD

Camera

The camera of the Rainbow is equipped with autofocus. An autofocus (or AF) optical system uses a sensor, a control system and a motor to focus on an automatically or manually selected point or area. Very few Android cameras come without autofocus.

Selfie camera5 MP
Main camera8 MP, 3264 x 2448 px, autofocus
FlashLED

Connectivity

The Koolnee Rainbow doesn't support 4G/LTE networks. This phone has a built-in GPS. GPS is a highly accurate navigation system using signals from satellites to determine a location on the Earth's surface, irrespective of weather conditions. Most phones have a GPS unit on board. The Rainbow phone has built-in FM radio. The built-in FM Radio is great for listening to your favorite radio station.

GSM 2G bands850 / 900 / 1800 / 1900
Network coverage2G / 3G
Wi-FiWi-Fi 802.11 b/g/n
Bluetoothv4.0, A2DP
GPSA-GPS
NFCno
FM radioyes
USBmicroUSB 2.0
Headphone3.5 mm jack

Battery

The Li-Po 2400 mAh battery gives the smartphone a good battery backup. The lithium polymer (Li-Po) battery is a thin, light-weight, rechargeable battery. No periodic discharge is needed and charging can be done at random. The battery of Rainbow is removable. You can simply buy a new piece from the open market and interchange it easily by yourself.

TypeLi-Po 2400 mAh

Features

Smartphones today come with a wealth of sensors to facilitate a better user experience. The accelerometer is a sensor that measures the tilting motion and orientation of the phone. The Dual SIM capability of Koolnee Rainbow phone is ideal for businesses wishing to provide staff with a mobile device that can offer separate numbers and bills for both personal and business use. This smartphone doesn't support fast charging technology.

Sensorsaccelerometer
SpecialsDual SIM
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The specifications above are based on the official data published by the manufacturer, but we also take user reviews into consideration. If you found an error or something lacking in the specifications above for the Koolnee Rainbow, then don’t hesitate and signal the problem to us.

Koolnee Rainbow pictures

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