The optics and camera improve for better picture quality. It’s still 720p, but the hardware is improved to make the video more crisp. The original lens was overmolded, which can create distortion. The new one is made separately then ultrasonically bonded to the light case. Battery life jumps to 6 hours, and lumen output to about double the original’s 15 lumens.
It’s treated inside and out with a nano coating, so even if water gets inside it’ll still be fine. It’s also a bit shorter, which will help it fit more frames. The upgrades come at a price – retail jumps to $199 during pre-order, from $159 for the original. That gets you USB rechargeable Li-Ion battery with six hour run time, 8GB MicroSD card (you can install a larger one to extend recording time), and simple looping video recording that saves in the event of an accident.
The name, BTW, comes from a mashup of two relevant sayings: Fly on the wall and Watch your six. You definitely want both while riding on the road, and now you’ve got it. The new version will be available later in the year, at which point the retail price goes in effect at $249.