The trickle-down of features from Fitbit’s higher-end wearables to its everyday fitness trackers continues with the Charge 5. This new edition of the device is packing both ECG and EDA sensors, both of which were first found in the higher-end Sense, to better help you monitor your heart health and stress. Charge 5 also gets a few quality-of-life improvements compared to its predecessor, including a new body that’s 10 percent thinner and a new color AMOLED display with an always-on option.But the real point of this new tech is to integrate the Fitbit into your daily health routines as something more than just a tracker. The ECG sensor will, naturally, help you check your heart’s electrical activity and check for signs of atrial fibrillation. The EDA, or Electrodermal Activity sensor (itself a fancier term for Galvanic Skin Response) is designed to measure the perspiration of your hands, which can be a marker for stress. As with the Sense, users can then be coached through a stress-reduction s
