Fitbit dominates the conversation and while the company's wares are undoubtedly competent, there are lots of other trackers out there that excel in areas your average Fitbit doesn't. More importantly, many of Fitbit's rivals deliver similar specs at much lower prices - so you'll be paying a bit of a premium for the Fitbit brand and software if you want to go for it. That said, Fitbits are reliable, have great compatibility with other services, and if you're used to their software and experience then you can skip the learning curve of new hardware.