smartwatches

Fitbit Sense

FitbitFitbit OS (Compatible with Android 7.0+ / iOS 12.2+ via Fitbit app)2020

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Device Specifications

Detailed technical specifications and features for the Fitbit Sense

Display

Display1.58" (4.01 cm) AMOLED Touchscreen Display (336x336 pixels), Always On Display (AOD), Corning Gorilla Glass 3

Battery

Battery Life6+ days (typical usage) / up to 12 hours with continuous GPS / up to 2 days with AOD enabled

ChargingProprietary Magnetic Charging Dock (Full charge in ~77 minutes, 12 minutes for 24 hours of battery)

Sensors

SensorsMulti-path optical heart rate sensor (PurePulse 2.0), Electrical sensors for skin conductance (EDA Scan app), Electrical sensors compatible with ECG app, Red and infrared sensors for oxygen saturation (SpO₂) monitoring, On-wrist skin temperature sensor, 3-axis accelerometer, Built-in GPS + GLONASS, Altimeter, Gyroscope, Ambient light sensor

Water Resistance

Water Resistance5 ATM (Water resistant to 50 meters, suitable for swimming in shallow water activities)

Connectivity

ConnectivityBluetooth 5.0, Wi-Fi (802.11b/g/n), NFC, GPS

Physical Aspects

DesignSquare dial with rounded corners, Aluminum case, Polished stainless steel bezel (ECG electrodes), Capacitive side button, Lightweight (45.9g), Quick-release Elastomer band (available in Carbon/Graphite, Lunar White/Soft Gold), Buckle closure

Weight45.9g

Features

Special FeaturesHealth & Fitness Tracking (24/7 Heart Rate Monitoring, EDA Scan app for stress management, ECG app for AFib assessment, Blood Oxygen (SpO₂) monitoring, Skin Temperature tracking, Sleep Tracking (with Sleep Stages, Sleep Score, Smart Wake alarm), Daily Readiness Score (Premium only), Active Zone Minutes, Built-in GPS, 20+ exercise modes, SmartTrack™ automatic exercise recognition, Steps, distance & calories tracked, Women's health tracking), Smart Features (Amazon Alexa Built-in, Google Assistant, Fitbit Pay (NFC contactless payments), Call, text & app notifications, Music controls (Spotify/Deezer - subscription required, no on-device music storage), Find My Phone, Always-on display mode, Do Not Disturb & Sleep Mode), 6 months Fitbit Premium trial included (new users only), Hundreds of Clock faces