The Charge 4 also offers Smart Wake, which uses machine learning to wake you up at an optimal time. The Charge 4 and Inspire 2 offer Cardio Fitness Level though - which is a VO2 Max measurement - but it isn't clear if the Luxe also offers this.

The Charge 4 and Luxe have SpO2 sensors for blood oxygen monitoring, which the Inspire 2 doesn't have. Its not the newest Inspire fitness band, but at this low price it still has plenty to offer. The Fitbit Charge 4 has NFC on board for Fitbit Pay, while the Inspire 2 and Luxe miss this off. And the Inspire 2 goes 10 days on a single charge. You'll also find silent alarms on all the trackers, Reminders to Move, smartphone notifications with Quick Replies for Android users, Guided Breathing and female health tracking.īeyond those features, things change a little between the devices.

They also all offer advanced sleep tracking with Sleep Score, swim tracking, Active Zone Minutes and they are able to automatically recognise some workouts with Fitbit's SmartTrack, whilst offering the ability to specifically track others using the Multi-Sport Mode. Many of the basic features offered by Fitbit are available across the Inspire 2, Charge 4 and Luxe fitness trackers, though there is some variation.Īll three trackers being compared here offer steps taken, distance travelled, calories burned and heart rate monitoring.

Inspire 2 vs charge 3