I'm a health wearables expert, and these are the Big Spring Sale deals I recommend to fitness enthusiasts

Amazon's Big Spring Sale is here, and the e-commerce giant has cut prices on everything from TVs to robot vacuums. If you're interested in buying a new fitness tracker to log your steps, track calories, or monitor sleep, now could be the time to score on savings. 

Also: The best Spring Sale health tracker deals you can buy

I write about health and fitness wearables for a living, and have several picks that, after testing and reviewing, I can't live without. If you're embarking on your first-ever marathon or are dialing into your sleep routine, these picks will make the process a little bit easier -- I know, I've used them myself.