Works perfectly, looks great
Like the fitbit ultra, the aria scale works perfectly, and is supported by a beautiful, highly useable site and apps. Unlike the ultra, it won't get knocked off your pocket and lost. So it's perfect.  It's so good, in fact, that you'll be tempted to measure yourself several times a day. If you do, you'll notice the only small flaw, which is that the online graph is not optimised for this, giving lots of overlapping data-point circles, instead of something sensible like averaging the readings.
Rating: 5 stars