Nice review of the confusing world of fitness trackers.
From WSJ (subscription):
$50 to $100 for the Basics
Here’s the biggest secret of buying a fitness tracker right now: You don’t need to spend more than $50 on one that does the basics, counting steps and estimating calories burned. In fact, that’s exactly what I suggest you do if you are a first-time buyer.
You won’t get a screen on many of the options in this range—or at least not a nice screen—but they all sync with your phone via Bluetooth so you can check your stats in their corresponding apps.
Both Misfit and Jawbone sell $50 plastic trackers that you can clip to your pants or wear on a wrist. After wearing them side by side for two weeks, I prefer the Jawbone Up Move. It is a bit chunkier and harder to put in its small clip than the Misfit Flash, but it consistently synced the data to my phone faster.
$100 to $150 for Better Design
If a sleeker band and a better screen are important to you, you’ll want to venture into the $100-to-$150 range, but you won’t get better data. You often get the same exact apps and features here as you get in that lower range.