When comparing Chron vs Batman, the Slant community recommends Chron for most people. In the question“What are the best custom Android Wear watch faces?” Chron is ranked 8th while Batman is ranked 55th. The most important reason people chose Chron is:
A Tron-like watchface with neon blues and yellows.
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Pros
Pro Detailed cyberpunk aesthetic
A Tron-like watchface with neon blues and yellows.
Pro Dimmed mode
Pro Circular display ready
The developers have confirmed that the watchface is ready for circular displays and promises to adjust it for Moto 360 as needed when they get their hands on the device.
Pro Shows date
Pro Big time and date
This is a functional watch face. At just a moment's glance you can tell what the time and date are.
Pro Cool
It's a Batman watchface which is super cool among a certain crowd. Others may not like it, but it's your watch.
Pro Support both round and square displays
Pro Simple
The design of the watchface is simple so it isn't distracting, but it's interesting enough (if you like BatMan at least) to make you stand out.
Pro Batman's chin
Cons
Con Not compatible with LG G Watch W100
Connection to the phone gets lost while using this watch face on LG G Watch W100.