Inspire 3: Activity tracking, sleep tracking, Active Zone Minutes, Cardio Fitness Score, Daily Readiness Score, Stress Management Score, Smartphone notifications.

When it comes to battery life though, the Inspire 3 promises 10 days, the Luxe promises 5 days and the Charge 5 promises 7 days.

It is also the only one to have high and low heart rate notifications.Īll three trackers offer a colour touchscreen though and they all offer an Always On Display too.

The Charge 5 is also the only one out of these three Fitbit trackers to offer Fitbit Pay, the EDA Scan app for stress management and the ECG app for heart rate rhythm assessment. There's Connected GPS on all three devices, but only the Charge 5 has built-in GPS, allowing you to go for a run and it track your route without your phone. Blood glucose tracking is also possible with all three trackers. The three devices also offer an SpO2 sensor for blood oxygen tracking and they can also all detect skin temperature variation and breathing rate. The Fitbit Inspire 3, Fitbit Luxe and Fitbit Charge 5 all offer a heart rate sensor for 24/7 tracking, along with heart rate variability, resting heart rate and irregular heart rate rhythm notifications.

Fitbit charge 5