Fitbit Charge 5 gets ECG – and Daily Readiness score launches

Promised features roll out
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Fitbit has announced that its ECG feature has launched on the Fitbit Charge 5, and the Daily Readiness Score has rolled out across the company's devices.

The Google-owned outfit announced its follow-up to the Charge 4 back in September, introducing a new stainless steel design with an AMOLED display, with features like built-in GPS and skin temperature sensors housed in that more attractive look.

Wareable verdict: Fitbit Charge 5 in-depth review

It packs an ECG sensor, joining Fitbit's Sense smartwatch in offering the ability to take more accurate heart rate readings when placing your fingers on the stainless steel case to take a reading in 30 seconds. It means the Charge 5 is now able to help detect atrial fibrillation.

Fitbit Charge 5 gets ECG – and Daily Readiness score launches

It's also turning on Daily Readiness Scores, which is available through its paid-for Fitbit Premium subscription service. Those scores are generated from activity logged, sleep and heart rate variability measurement data to give users a better sense if they're ready to take on an intense day or they should consider taking it easy.

It will prompt personalised recommended workouts from Fitbit's own library or even suggest spending some more mindful time to help relax and recharge. You'll need to wear your device for at least four days to start generating scores.

Those scores will be available in Fitbit's companion app for Charge 5, Sense, Versa 3, Versa 2, Luxe and Inspire 2 owners. If you own a Sense or Versa 3 smartwatch, you can also see Readiness scores on your watch screen too.

Another feature that's being further rolled out in Fitbit's app is the ability for users to keep better track of blood glucose levels as well as set personalised ranges.

Fitbit introduced this ability to track back in February this year. The improved support is being made available in Australia, Canada, France, Germany, Hong Kong, India, Ireland, New Zealand, Singapore, Spain and the UK.

Charge 5 users can expect the necessary software update to start rolling out now, while it's a similar story for other Fitbit users who are waiting on Daily Readiness Scores too.

We were largely pleased with the new Charge in our testing time, but there was definitely some software bugginess to deal with.

We'll be putting these new Charge 5 features thoroughly to the test to see whether they've been worth over a month after launch to try them.

How we test

Michael Sawh


Michael Sawh has been covering the wearable tech industry since the very first Fitbit landed back in 2011. Previously the resident wearable tech expert at Trusted Reviews, he also marshaled the features section of

He also regularly contributed to T3 magazine when they needed someone to talk about fitness trackers, running watches, headphones, tablets, and phones.

Michael writes for GQ, Wired, Coach Mag, Metro, MSN, BBC Focus, Stuff, TechRadar and has made several appearances on the BBC Travel Show to talk all things tech. 

Michael is a lover of all things sports and fitness-tech related, clocking up over 15 marathons and has put in serious hours in the pool all in the name of testing every fitness wearable going. Expect to see him with a minimum of two wearables at any given time.

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