The 42mm model only has a 300mAh battery, and likely won't go a full day with ambient mode on (it will bottom out late in the evening). The 46mm model has a larger 400mAh battery, and will easily be able to manage a full day with ambient mode on or 2 days with ambient mode off.
There is no ambient light sensor, so you will have to manually adjust brightness when you step outside/back inside. There is also no GPS and no NFC. While the hardware is good, it can be hard to fork out a premium price for a watch that is lacking useful hardware additions.
If your watch is out of bluetooth range of your phone, it will connect to available Wi-Fi. Wi-Fi takes more power than bluetooth, but it allows you to not have to carry your phone all the time and still receive notifications.
Some smartwatches have built-in GPS which allows them to track runs without needing to carry your phone with you, allowing you to use your watch as a fitness tracker. The Urbane doesn't have this ability.
While it can't deal with deep water pressure, you have nothing to worry about when washing your hands or getting it wet in the rain thanks to the IP68 rating. You can also wash the band and unit off to remove any dust or debris that can accumulate on the underside of the central unit or in the...
The device pops out and you can put in in a new band, although only certain bands will fit it. These bands tend to be expensive, and there only a few options (different colored silicon or stainless steel).
Currently the heart rate monitor works with Samsung's S-Health app. The heart rate monitor itself works good, but the app is somewhat clunky and there aren't that many features to speak of except for tracking your heart rate over time. Hopefully it will be compatible with third-party apps t...