At just 15mm thick the Colour by Ratio Computers is the thinnest Dive computer/wrist Watch on the market and it is packed with features.
The Colour is an Visual Icon driven menu interface, offering dual wireless transmitter capability.
The Ratio Computers can be upgraded from the base model to the Deep and Tech+ models.
To upgrade, purchase a keycode and then use the Ratio Tool kit to install the upgrade key into the dive computer. After you complete the purchase, the key-code will be emailed to you.
The upgrade key can be used on any of the iX3M or iColour computers.
The upgrade key is a single-use and is non-refundable once purchased.