It might be a useful tool for those who exercise three or four times a week, but even then, my experience makes me wary of saying it’s giving reliable advice.

The Fitbit Charge 5 never seemed to learn that I can run every day and recover fine, and simply dished out low scores because I had exercised the previous day. The only time my score changed was after a rest day.īased on my experience the daily readiness score simply isn’t that smart, and it’s a long way off what you’ll get from other devices that offer similar ratings like the Oura ring or Whoop 4.0, which do get to know you well and adjust their scores appropriately.

This is normal for me and something I’ve done for several years, but I was consistently given a low readiness score of 10 out of 100 simply because of high levels of past activity. However, even after three weeks I found that my readiness scores were pretty useless, probably because I run almost every day. Since the score is based on personalised baselines, it takes 14 days to fine-tune your results before you can expect accurate results. On the other hand, if you have a low readiness score you’ll be advised to focus on recovery, with recommendations for things like yoga or meditation sessions, and tips on how to improve your sleep. For example, if you have a high readiness score you’ll be given a more ambitious Active Zone Minutes target (explained below) and receive suggestions for workouts that can help you hit it. Your score is accompanied by appropriate activity recommendations and advice. These are measured against personalised baselines and adapt to your fitness level. This score assesses how prepared you are for physical activity today and is based on three factors: your recent activity, the quality of your sleep over the past few days, and your heart rate variability during deep sleep. Fitbit’s Daily Readiness Score feature made its debut on the Charge 5, but is now available across most of the company’s range of devices, though notably the Charge 4 did not get the update.

Fitbit charge 5 review