Amazon Chime boasts high definition video calls and uses Alexa, a device by Amazon, to allow easy access to video conferencing. A total of 16 users can take part in a video call from their desktop computers, or 8 on mobile devices. There are file sharing features and chat rooms where users can communicate, similar to the way teammates communicate on Slack. Chime takes Alexa and implements smart technology to enhance the user experience beyond that of other video calling services.