Armband activity tracker Fitbit Inspire 3 Black

The Fitbit Inspire 3 Black is a slim armband activity tracker designed to monitor daily activity, heart rate and sleep. It records Active Zone Minutes to show time spent in fat burn, cardio and peak heart rate zones, provides Stress Management Scores with guided breathing sessions, and tracks sleep stages including light, deep and REM sleep. The device also monitors resting heart rate, blood oxygen and skin temperature trends and pairs with the Fitbit app for consolidated health data. Lightweight and compact, it is compatible with Android and iOS devices and offers multiday memory for activity totals.

Advantages

The Inspire 3 delivers continuous optical heart rate monitoring and Active Zone Minutes to help adjust workout intensity. It provides daily Stress Management Scores and guided breathing to support stress control, plus detailed Sleep Scores and stage tracking for improved rest. Battery life supports up to 10 days of use with a fast 2‑hour charge. The slim silicone band is lightweight for all‑day wear, and the Fitbit app aggregates health metrics including resting heart rate, SpO2 and skin temperature trends.

Suitable for

• Everyday activity tracking and step counting
• Monitoring workouts by heart rate zone (fat burn, cardio, peak)
• Sleep tracking and improving sleep consistency
• Stress awareness and guided breathing sessions
• Users of Android and iOS smartphones seeking a lightweight fitness band

Key specifications

• Model: Fitbit Inspire 3 Black (MPN: FB424BKBK, EAN: 810073610064)
• Device type: Armband activity tracker
• Heart rate sensor: Optical continuous monitoring
• Memory: 7 days detailed, up to 30 days daily totals
• Battery life: Up to 10 days; charging time ~2 hours
• Connectivity: Bluetooth (no Wi‑Fi)
• Compatibility: Android and iOS
• Weight: 0.152 kg
• Band colour: Black

How to use

Wear the Inspire 3 on your wrist with the sensor side against the skin and adjust the silicone band so it is snug but comfortable. Pair the tracker with the Fitbit app on your Android or iOS device via Bluetooth to sync activity, heart rate and sleep data. Use the Active Zone Minutes feature during workouts to see which heart rate zone you are in and adjust effort accordingly. Open the app to view Stress Management Scores, guided breathing sessions and detailed sleep reports. Charge the device using the supplied charger when the battery is low; a full charge takes about 2 hours.

Recommendations

For the most accurate heart rate and sleep data, wear the Inspire 3 consistently overnight and during activities, keep the sensor area clean, and ensure the band fits securely without being overly tight. Regularly sync with the Fitbit app to preserve daily totals and review trends.