Smartwatches keep getting both smarter and watchier, but Fitbit remains confident that people will continue to slap its trusty trackers on their wrists, too. And the Charge 5 is the most advanced one of those that it has ever made. The first Fitbit tracker to feature an EDA sensor, the Charge 5 can monitor your body’s response to stress and offer guidance on how to better manage it. This is in addition to the on-board ECG app, 24/7 heart rate monitoring, sleep tracking, and metrics in the Fitbit app for breathing rate, skin temperature and SpO2. On the fitness side of things, you get built-in GPS for tracking runs and 20 exercise modes, while a new feature for Fitbit Premium subscribers called Daily Readiness uses insights from your various sensor readings to instruct you on when it’s a good time to work out, and when you’re better off staying horizontal on the sofa. The Charge 5 is thinner than its predecessor and sports a brighter AMOLED colour touchscreen display. Pre-orders are now live, with £170 nabbing you the tracker and six months of Fitbit Premium at no extra cost.