RRP = $169.95
Normal Store Price = $159
Current Sale Price = $147 (plus $20 Harvey Norman Gift Card)
Closest known competitor price = $159 (Officeworks)
Note: The page doesn't always display the 'Bonus $20 Gifd Card' special on my PC. If it doesn't show up for you, try viewing it from your smartphone/tablet. The same special was not offered in-store but they were happy to honour the special when I showed it to them on my phone.
Essentially, this is a weight scale that measures weight, body fat % and BMI. It connects over Wi-Fi and can automatically sync this data to online services like Fibit.
The product has pretty good reviews. You will have to decide for yourself if you think spending this much money on a weight scale is worth it or not.
Personally, I found that weighing myself on a normal scale, then breaking out the body fat calipers + calculators and logging down all the numbers was a bit too tedious to want to do this regularly.
My Fitbit Aria is on back-order, so I haven't got a first-hand user review to share.
Alternatives in this category was the Withings WS-50 smart scale, which aims to add more features and connect to more online services(including Fitbit itself, surprisingly). I decided against buying the WS-50 scale as some reviewers cited issues when trying to claim warranty plus you would have to import this from outside Australia.