Fitbit Sense 2 Health and Fitness Smartwatch - Shadow Grey/Graphite | with Stress and Sleep Tools - 3-Month Google Health Premium Membership Included - ECG App, SpO2, 24/7 Heart Rate, and GPS

$226.509% off

List price ~~$249.95~~

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Size: 40.5mm

Price checked Oct 19, 2026, 2:48 AM PDT

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Product details

ASIN: B0B4N2T7GL
GTIN / UPC: 810073611429
Brand: Fitbit
Category: Electronics
Availability: Check availability on Amazon
Last checked: today

Specifications

Size: 40.5mm
Color: Shadow Grey/Graphite
Model: FB521
Part number: 6514034
Manufacturer: Fitbit Inc
Dimensions: 1.6 × 0.5 × 1.6 in
Weight: 6.7 oz

About this item

Learn to manage stress, sleep better and live healthier with Sense 2 – an advanced health and fitness smartwatch
Manage stress and live healthier: All-day stress detection with cEDA and daily Stress Management Score, ECG app for atrial fibrillation assessment[1], irregular heart rhythm notifications[2], SpO2[3], health metrics dashboard[4], mindfulness content
Measure and improve sleep quality: Daily sleep stages and Sleep Score, smart wake alarm and do not disturb mode
Enhance activity: Built-in GPS and workout intensity map, Daily Readiness Score, Active Zone Minutes, all-day activity tracking and 24/7 heart rate, 40+ exercise modes and automatic exercise tracking, water resistant to 50 meters
Designed for all-day wear: On-wrist Bluetooth calls, texts and phone notifications[5], customizable clock faces, Amazon Alexa built-in[6], Google Wallet & Maps, 6+ day battery[7]

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Fitbit Sense 2 vs Charge 6: Which Fits Your Wrist and Charging Routine?
Choose by shape and documented charging routine. Sense 2 is the square, watch-style option and has a manufacturer-stated 12-minute top-up for a full day of battery life.

Fitbit Sense 2 Health and Fitness Smartwatch - Shadow Grey/Graphite | with Stress and Sleep Tools - 3-Month Google Health Premium Membership Included - ECG App, SpO2, 24/7 Heart Rate, and GPS

Product details

Specifications

About this item

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