When comparing Vector Luna vs InWatchZ, the Slant community recommends InWatchZ for most people. In the question“What are the best smartwatches?” InWatchZ is ranked 20th while Vector Luna is ranked 32nd. The most important reason people chose InWatchZ is:
The Z is the only smartwatch capable of working as a phone without the need to sync to an existing smartphone.
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Pros
Pro Stand-alone phone
The Z is the only smartwatch capable of working as a phone without the need to sync to an existing smartphone.
Pro Decent camera on-board
There's a camera just above the screen on the band. It can take 5MP stills, or record 720p video.
Pro Customizable UI
The UI was designerd in-house. It ships with the Google Play Store, and runs full Android version 4.4 allowing for lots of customization.
Cons
Con Slow data speeds
2G speeds are very slow compared to 3G, and especially LTE. You will not be happily streaming all day long.