by Christine Persaud on (#54QJ1)
Worth the upgradeFitbit Charge 4$129 at AmazonProsBetter battery lifeSwimproof designActive Zone MinutesBuilt-in GPS Built-in Spotify control ConsExpensive upgrade Not as many color optionsProprietary chargerThe Fitbit Charge 4 is a worthwhile upgrade for features like built-in GPS and Spotify Connect that let you leave your smartphone at home. You also get Active Zone Minutes, Quick Replies via compatible Android devices, a swim-proof design, SPO2 sensor to measure blood oxygen levels, Fitbit Pay, and generous seven-day battery life. That's just the tip of the iceberg when it comes to why you should upgrade from a Charge 2.Still a decent trackerFitbit Charge 2$125 at AmazonProsHas all the essentialsFive-day battery lifeSame app dashboardConsOnly water-resistant No built-in GPSOutdatedIf you already own the Fitbit Charge 2, it's still a pretty decent activity tracker. You get access to the same Fitbit app and dashboard to moni...