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Catalogue in 5 languagesMaker-verified specifications
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HomeSmartwatchesFitbitFitbit Sense 2
Global SmartwatchesFitbit Sense 2
Fitbit

Fitbit Sense 2

40.5 mm • up to 144 hours • Yes • 50m

40.5 mmCase Size
up to 144 hoursBattery Life
YesECG App
50mWater Resistance
KACBU

Should I buy it?

Fitbit Sense 2
CONSIDER
    Great choice if these matter:
    • Health Tracking
    • Daily Use
    • Sport & Outdoors
    Watch out for:
    • Google publishes neither the display diagonal nor its resolution
    • The battery capacity is not given in milliamp-hours
    Regret riskLOWlimited data
    Main risks
    • Google publishes neither the display diagonal nor its resolution
    • The battery capacity is not given in milliamp-hours
    • The chipset and the storage are not named on the page
    • No dual-band positioning is stated
    The risk level is computed from the release date and verified weaknesses. The confidence score appears only once enough owner reports exist.
    Alternatives
    Apple Watch Series 11 42mm
    Apple Watch SE 3 44mm
    This box relies only on verified specs, the release date and editorial assessment; owner reports join them as they come in. We do not predict prices.
    HealthDisplayLocationBatteryDurabilityLaunchSpecificationsAlternatives
    Health

    What does it measure on the health side?

    The maker's own official specifications. A sensor being present does not mean the feature is enabled in every country.

    HEALTH

    A sensor is one thing; a feature is another.

    Yes

    Yes — Heart Rate Sensor · Yes — SpO2 Sensor · Yes — ECG Sensor · Yes — ECG App

    YesYesYesYes
    YesHeart Rate Sensor
    YesSpO2 Sensor
    YesECG Sensor
    YesECG App
    Display

    What does the display offer?

    Manufacturer's official technical values.

    DISPLAY

    The display is where every interaction on the wrist happens.

    —

    AMOLED — Panel

    AMOLED
    AMOLEDPanel
    Location

    What is there on the positioning side?

    Manufacturer's official technical values.

    LOCATION

    Having a GNSS receiver does not mean it is dual-band.

    —

    Yes — GNSS Receiver · GPS, GLONASS — GNSS Systems

    YesGPS, GLONASS
    YesGNSS Receiver
    GPS, GLONASSGNSS Systems
    Battery and Charging

    What does it offer on the battery side?

    Manufacturer's official technical values.

    BATTERY AND CHARGING

    The figure the maker promises and the battery's capacity are two different things.

    144 hours (up to)

    up to 144 hours — The figure the maker states · Normal use — What that figure measures

    up to 144 hoursNormal use
    up to 144 hoursThe figure the maker states
    Normal useWhat that figure measures
    Durability

    How well does it resist water and dust?

    Manufacturer's official technical values.

    DURABILITY

    Water pressure and dust ingress are two separate measurements.

    50m

    50m — Water Resistance

    50m
    50mWater Resistance
    Who Is It For?

    Where does it stand out?

    A usage guide built from the specs and the editors' tags; not a test result.

    Health Tracking

    Health-focused; heart-rate, sleep and blood-oxygen sensing are on the maker's list.

    Good fit
    Daily Use

    A balanced spec set for everyday use: display, battery and camera figures together.

    Good fit
    Sport & Outdoors

    For training and the outdoors; tagged from its positioning (GNSS), toughness and battery specs.

    Good fit
    Editorial Analysis

    Strengths and points to consider

    The Kacbu editors' assessment of the specifications the maker publishes. We do not test devices ourselves, so nothing here is a measured result. Anything taken from an independent review is shown with its publication and date in the Press section.

    Strengths based on the specs
    Water resistance to 50m
    A 37.64 gram body
    A display under Corning Gorilla Glass 3
    An optical heart rate sensor and SpO2 in the same body
    Up to 144 hours of battery in normal use
    Things to consider
    Google publishes neither the display diagonal nor its resolution
    The battery capacity is not given in milliamp-hours
    The chipset and the storage are not named on the page
    No dual-band positioning is stated
    Historical Product Info

    Official launch details

    Instead of tracking today's retail price, Kacbu keeps the product's official launch information as a reference.

    Design🇺🇸 United States
    This is not the current retail price — it shows the product's historical, official launch information.
    Specifications

    Fitbit Sense 2 specifications

    Click a linked value to see other products that share that same spec, and leave a comment on that spec.

    Display

    Official source: store.google.com
    Display Technology
    AMOLED

    Design

    Official source: store.google.com
    Display Glass
    Corning Gorilla Glass 3
    Weight
    37.64 g
    Case Size
    40.5 mm
    Thickness
    11.2 mm
    Case Material
    Aluminum

    Battery

    Official source: store.google.com
    Battery Life Mode
    Normal use
    Battery Life (hours)
    144

    Health Sensors and Features

    Official source: store.google.com
    ECG App
    Yes
    ECG Sensor
    Yes
    SpO2 Sensor
    Yes
    Heart Rate Sensor
    Yes
    Skin Temperature Sensor
    Yes

    Positioning and GNSS

    Official source: store.google.com
    GNSS
    Yes
    Satellite Systems
    GPS, GLONASS

    Water and Dust Resistance

    Official source: store.google.com
    Water Resistance
    50m

    Wireless Connections

    Official source: store.google.com
    NFC
    Yes

    Multimedia

    Official source: store.google.com
    Speaker
    Yes
    Microphone
    Yes

    Operating System

    Official source: store.google.com
    Phone Compatibility
    Android 11.0 and above, iOS 16.4 and above

    General

    Official source: store.google.com
    Series
    Fitbit Sense
    Shared Hardware

    Products that share this hardware

    This product's standout specs. You can jump to other models that use the same value.

    Display TechnologyAMOLED30 more productsWater Resistance50m6 more products
    Alternatives

    Other models in the same category

    Other products in the same category.

    Apple Watch Series 11 42mm

    Apple Watch Series 11 42mm

    Apple

    View product
    Apple Watch SE 3 44mm

    Apple Watch SE 3 44mm

    Apple

    View product
    Apple Watch SE 3 40mm

    Apple Watch SE 3 40mm

    Apple

    View product
    Apple Watch Ultra 3

    Apple Watch Ultra 3

    Apple

    View product
    Data-backed answers

    Computed answers about the Fitbit Sense 2

    Each answer is computed from spec data and editor tags; where there is no data, there is no page.