Fitbit Charge 6 vs Garmin Cirqa: which should you buy?

Key differences

Not enough for an overall lead: the Garmin Cirqa is ahead on battery life only. It also costs about $76 more today.

• Battery life: 7 days vs 10 daysFitbit Charge 6: 7 days (Up to 7 days) ConfirmedSourceGarmin Cirqa: 10 days (Up to 10 days) ConfirmedSource

From each maker's own specifications. A point is listed only when both makers state a figure and the two differ; a point either maker does not state is left out, never guessed. Two figures measured under different conditions are shown side by side, not compared.

Who should buy which

• The Fitbit Charge 6 Guide names it for gym workouts and heart health.Gym workouts: Pair it with compatible exercise apps and machines, and worn snug its heart rate held up against a Polar H10 chest strap. Source linkedSourceHeart health: Take an ECG from your wrist to check for AFib and share the result with your doctor, with alerts for an irregular rhythm or a high or low heart rate. Source linkedSource
• The Garmin Cirqa Guide names it for training readiness and recovery.Training readiness: It tracks HRV status, VO2 max, and training status. Source linkedSourceRecovery: Readiness and recovery-time guidance tell you when to go again, and the band runs up to 10 days per charge. Source linkedSource

From what each Guide names the product best for. Both Guides also name sleep.