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Use like a normal scientific calculator when desired

Connect to the Internet and read Search Engine Results for any query you like

Chat with an iOS or Android Device anywhere in the world
Chat with another Ruby Calculator up to 20 meters away

Chat with a PC or Mac anywhere in the world


Switch mode to your favorite keyboard style. Chat away

Store up to 300,000 words of text notes and up to 30 files on the Ruby Calculator for storage. Use the RXO Chat App to load text files onto the calculator


Peel off the Ruby Devices Logo Sticker to reveal a normal looking scientific calculator


Feature Set

  • Web Search. Search the internet and read the search engine results page from your calculator.
  • Chat with both iOS and Android Devices:
    • Android is supported on devices running software version 5.0+. Download the free App "RXO Chat" from the Play Store.
    • iOS Platform: Download the free "RXO Chat" app
  • Chat with other Ruby Calculators.
  • Chat with a PC or Mac using the RXO Chat Web App.
  • Text File storage of up to 300,000 words and 30 separate files.
  • Scientific Calculator functionality accurate to six significant figures.
  • Password protection of Message Mode to ensure privacy for the user.
  • Easy cycling through received messages to ensure that long messages can be read with ease.
  • Supports receiving, sending and storing a large range of special characters in addition to alphanumeric characters. Consult the User Manual for details.
  • Powered from AAA Alkaline batteries. One set of heavy duty Alkaline batteries will last 12 hours.
  • Auto-Scrolling through stored text files. Enabling the auto-scroll feature will cause the calculator to automatically scroll through text files at a predefined speed.
  • Emergency/Panic button. This button will lock all advanced functionality of the calculator and turn it back into a normal calculator once again until the password is re-entered.

Please download and read the user manual for a detailed description on how to use the calculator.



A purchase will include a free Alkaline battery pack. 
You can download user manual Here.

Ruby Calculator Ultimate Edition Express delivery

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