When comparing Google Glass vs Carl Zeiss Smart Glass, the Slant community recommends Google Glass for most people. In the question“What are the best smart glasses?” Google Glass is ranked 2nd while Carl Zeiss Smart Glass is ranked 5th. The most important reason people chose Google Glass is:
Google Glass integrates with Google Maps to provide directions and real-time navigation information.
Ranked in these QuestionsQuestion Ranking
Pros
Pro Built-in navigation support
Google Glass integrates with Google Maps to provide directions and real-time navigation information.
Pro A wide variety of glass designs available
Glass has multiple colors, frames, shades and earbuds available to help achieve a desired look.
Pro Can record 720p video
Google Glass allows recording a 720p video by either holding down the button that's located on top of the heads up display or saying "Ok Glass, record a video". By default the device will record a 10 second video, but that restriction can be removed by clicking the button again while recording.
Pro Natural language voice commands can be used to interact with the device
To interact with the device say "Ok, Glass" and give it instructions on what to do. Currently, it supports things like taking a picture, getting directions or calling someone, but more functionality will be available as developers start creating apps for the device.
Pro WiFi and Bluetooth connectivity
Pro Reflective display
Instead of shining light directly into your eyes, the light simply reflects off the glass, meaning its less obtrusive.
Pro Adaptable technology
The technology used in the Carl Zeiss Smart Glasses project can be transferred to normal glasses, or wherever curved glass is present. This solves the fundamental issue with Google Glass, which required an out-of-place flat piece of glass to function.
Pro Low-profile
The glasses look very much like regular, non-smart glasses.
Cons
Con Project put in limbo
While Google has said they haven't scrapped Project Glass, they aren't actively developing it at the moment. For all intents and purposes, Google Glass is in limbo.
Con Hardware only (for now)
Carl Zeiss is a company that makes optics, and doesn't work on software. This is only a hardware solution, with no software implementation yet. Currently Carl Zeiss is seeking a software partner, however this will take time for them to develop a complete product once they do find a suitable partner.
Con Not yet available
These glasses are currently in prototype stage. It's not clear when and even if they will go into production.