Features STRESS & SLEEP All-day body-response trackingStress
notificationsEDA Scan app for stress managementReflections Stress Management
Score Relax breathing sessions Sleep tracking & sleep stagesSleep
Profile Sleep ScoreSmart Wake alarm .  HEALTH SpO2 (Blood Oxygen)
TrackingIrregular heart rhythm notificationsECG app for heart rhythm
assessment Resting heart rate High & low heart rate notificationsHeart rate
variability Skin temperature sensor Breathing rate Wellness Report Menstrual
health tracking .  FITNESS Heart Rate Tracking Daily Readiness Score Active Zone
Minutes Built-in GPS Exercise modes Steps, distance & calories Water
resistant Cardio Fitness Score Automatic exercise tracking Workouts on your
phone .  SMARTS & MORE Call, text and app notificationsOn-wrist BluetoothŽ
calls Google Maps Google Wallet Fitbit Pay Find My Phone Always-on display
mode Do not disturb & sleep mode Compatible with iOS and Android
devices Slim Design 6+ Day Battery Fast charging Clock faces &
accessories Colour touchscreen Fitbit Premium Membership .   Specs What's
included: Fitbit Sense 2Classic band (small & large)Charging cable.  Sensors
& Components Multi-path optical heart rate sensorElectrical sensor to
measure skin conductance (cEDA) for body response trackingMultipurpose
electrical sensors compatible with ECG app & EDA app. ECG not available in
all countries.Red and infrared sensors for oxygen saturation (SpO2)
monitoringAltimeter3-axis accelerometerSkin temperature sensorAmbient light
sensorWiFi (deactivated, cannot be turned on)NFCBuilt-in GPS + GLONASSVibration
motorSpeaker (75dB SPL @10cm)Microphone.  Battery & Power Battery life of 6+
days. Battery life and charge cycles vary with use, settings and other factors;
actual results will vary. Use of the always-on display, SpO2 and the cEDA sensor
will require more frequent charging. Up to 5 hours with continuous GPS. We
recommend charging your tracker every few days to ensure you are always
tracking.Battery type: Lithium-polymerCharge time (0-100%): Two hoursCharge 12
minutes to get one day of battery lifeRadio transceiver: BluetoothŽ
5.0.  Memory Saves 7 days of detailed motion data, minute by minuteSaves daily
totals for the last 30 daysStores heart rate data at one-second intervals during
exercise tracking and at five-second intervals all other times.  Water
Resistance Water-resistant to 50m. After getting the band wet, we recommend
drying the band because, as with any wearable device, it's best for your skin if
the band is clean and dry..  Care Give your wrist a rest by taking the band off
every now and then. If the band gets wet or you sweat in it, remove and
completely dry the band before putting it back on..  Materials This watch
includes a band made of a flexible material similar to that used in many sports
watches, as well as an aluminium watch case and buckle..  Heart Rate Like all
heart rate tracking technologies, accuracy is affected by physiology, location
of device and different movements..  Environmental Requirements Operating
temperature: -10° to 45° C.  Syncing Google account will be required. The Fitbit
app is compatible with most popular phones. To set up and use your Fitbit
products and services, you must install the Fitbit app on a compatible device
running one of the following operating systems:? Apple iOS 15 or higher.?
Android OS 9 or higher. Syncing range: Up to 9m? Certain features like
smartphone notifications may require Android 9+. ? Syncing requires BluetoothŽ
LE, an internet connection and location permissions granted on the phone.  Band
Size Small: Fits wrist 129mm - 175mm in circumferenceLarge: Fits wrist 158mm -
209mm.  Dimensions 40.5mm l x 40.5mm w x 12.3mm h.