From the manufacturer

Innovations that guide you towards better health

Compare Fitbit Smartwatches & Trackers

	Sense	Versa 3	Versa 2	Charge 4	Inspire 2
Battery life (in days)	6+	6+	6+	7	10
Water resistance	50m	50m	50m	50m	50m
Tracks activity & sleep
24/7 heart rate & AZM
Text, call & app notifications
Store & play music				✘	✘
Hundreds of apps & clock faces				✘	✘
Alexa & Google Assistant	Yes	Yes	Alexa Built-in	No	No
Built-in GPS			✘		✘
Stress tracking w/ EDA sensor		✘	✘	✘	✘
ECG app & skin temperature		✘	✘	✘	✘
High & low heart rate alerts		✘	✘	✘	✘

Meet Fitbit Sense—the advanced smartwatch that helps you tune in to your body and guides you toward better health. Assess your heart for atrial fibrillation (Afib) with a compatible ECG app right on your wrist, track & manage stress, better understand your sleep quality and even keep an eye on patterns in your skin temperature. Plus, Sense unlocks a 6-month free trial of personalized guidance and advanced insights from Fitbit Premium for new users.

Product details

• Product Dimensions ‏ : ‎ 1.59 x 1.59 x 0.48 inches; 7.05 Ounces
• Item model number ‏ : ‎ FB512SRSG
• Batteries ‏ : ‎ 1 Lithium Ion batteries required. (included)
• Date First Available ‏ : ‎ August 16, 2021
• Manufacturer ‏ : ‎ Fitbit Inc

Fitbit Sense – Sage Grey

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About this item

• Optimize your workouts with a Daily Readiness Score that reveals if you’re ready to exercise or should focus on recovery (requires Fitbit Premium membership. Premium content recommendations are not available in all locales and may be in English only)
• EDA Scan app detects electrodermal activity which may indicate your body’s response to stress and a built-in skin temperature sensor logs yours each night so you can see when it varies
• With a compatible ECG app right on your wrist, assess your heart for atrial fibrillation–a heart rhythm irregularity–and share the results with your doctor (Only available in select countries. Not intended for use by people under 22 years old)
• An on-wrist skin temperature sensor tracks yours each night so you can see how it varies
• Personalized health & fitness guidance with a 6-month trial of Fitbit Premium for new Premium users (New & returning Premium users only. Valid payment method required. Content and features may change)
• High & low heart rate notifications alert you if yours seems above or below your average
• Battery lasts 6+ days—plus, fast charging gives you a full day’s charge in just 12 minutes (Varies with use and other factors; up to 12 hours with continuous GPS)
• Use built-in GPS during runs, hikes, rides, and more to see pace & distance without your phone
• Use your voice with Amazon Alexa Built-in to check the weather, set reminders, control smart home appliances, and more from your watch (Voice assistant availability and features may vary)

Brand	Fitbit
Color	Sage Grey/Silver
Special Feature	Time Display, Sleep Monitor, Notifications, Heart Rate Monitor
Compatible Devices	Smartphone
Age Range (Description)	Adult
Style	Modern
Connectivity Technology	GPS
Shape	Square
Band Material Type	Silicone
Supported Application	Sleep Monitor, Heart Rate Monitor