Achieving your fitness goals doesn’t have to be expensive or complicated. Keeping track of your progress will be crucial, but not everyone needs to drop hundreds of dollars on the best smartwatches out there. The average affordable tracker might offer just the right tools to help kickstart your health journey, like a heart rate monitor, sleep quality data and so on. And, after testing a number of affordable fitness trackers, I can say with confidence that you might be surprised by how much a $100 (or less) wearable can do — a welcomed treat for those who don’t want to spend a ton of cash on an Apple Watch. Many of these gadgets go well beyond being glorified pedometers, providing in-depth reports on how you’re sleeping at night or giving you a breakdown of your heart rate variability during a workout. But given their price, there will be some sacrifices. To help you decide…