Vibrant Display & Tactile Controls: Features a 46% larger, 1.34-inch bright AMOLED screen with an optional Always-On mode and a tactile physical side button for smooth wrist navigation.

Comprehensive Health & ECG Monitoring: Equipped with sensors for continuous heart rate tracking, irregular rhythm assessment via the on-wrist ECG app, blood oxygen ($SpO_2$), and skin temperature variations.

Enhanced GPS & Automated Fitness Tracking: Includes built-in multi-constellation GPS (40% more accurate) with support for 50+ manual workout modes and auto-detection for up to 100 activities.

Week-Long Battery & Repairable Design: Delivers up to 7 days of battery life on a single charge with fast-charging support, and introduces Fitbit’s first user-replaceable modular battery architecture.

Durable, All-Weather Build in Olive Green: Housed in a 100% recycled aluminum case paired with a soft-touch olive green silicone active band, featuring 5 ATM water resistance and IP68 dust protection.

Sleek & Durable Recycled Design: Encased in a 100% recycled aluminum housing paired with a comfortable, soft-touch silicone active band in Black.

Vivid 1.34-inch AMOLED Touchscreen: Features a 46% larger, bright AMOLED color display with Always-On support and a physical side button for easy tactile navigation.

Advanced Health & Heart Monitoring: Equipped with ECG heart rhythm assessment, continuous optical heart rate monitoring, SpO2 tracking, and skin temperature sensors.

Precision GPS & Auto Workout Tracking: Includes built-in multi-satellite GPS with integrated altimeter for elevation tracking and automatic activity recognition supporting over 100 sports.

7-Day Battery with Repairable Modular Build: Delivers up to 7 days of battery life with fast charging (5 minutes gives 1 day of use) and an end-user replaceable battery.