We’re here with Prime Day 2025 and it feels like a new era. The event is longer, which can make it feel a bit like Black Friday. Another thing making it look like Black Friday? Our top pick among the best fitness trackers — the Fitbit Charge 6 — is back to its rarely-seen Black Friday pricing.

The Fitbit Charge 6 will track your steps, heart rate, burned calories and more, and it's cheaper than its ever been over at Amazon right now.

“Just checking my sleep stats helps me realize the cause when my energy is tanked,” one reviewer wrote. Another praised the heart rate monitoring, sharing that she “went into [atrial fibrillation] and had no idea what was going on until I checked my Fitbit to see that I was in trouble.”