Fitbit Inspire 2 vs Fitbit Sense

Every spec side by side, from each maker's published figures.

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Inspire 2 compared with Sense
FitbitInspire 2FitbitSense
Overview
ReleasedSeptember 2020September 2020
Display
Case sizes37 mm40.48 mm
PanelOLEDOLED
Always-on displayNoYes
Display detailGreyscale PMOLED touchscreen; no always-on mode1.58-inch colour AMOLED touchscreen; 336 × 336 pixels; optional always-on display
Screen protection–Corning Gorilla Glass 3
Health and fitness
ECGNoYes
Blood oxygenNoYes
Skin temperatureNoYes
Sleep apnoea alertsNoNo
High blood pressure alertsNoNo
Body compositionNoNo
Fall detectionNoNo
Crash detectionNoNo
GPSNoneSingle-band
Water resistance50 m50 m
Sensors3-axis accelerometer; multipath optical heart-rate tracker; vibration motor3-axis accelerometer; gyroscope; altimeter; built-in GPS receiver with GLONASS; multipath optical heart-rate tracker; multipurpose electrical sensors for ECG and EDA Scan; on-wrist skin-temperature sensor; ambient light sensor; microphone; speaker; vibration motor
Health features24/7 heart-rate tracking, sleep stages and sleep score; menstrual-health tracking through the Fitbit app.ECG app and irregular heart rhythm notifications in supported regions; EDA Scan for stress response; blood-oxygen and skin-temperature trends; sleep tracking and heart-rate alerts. Availability varies by region and some insights require Premium.
Fitness featuresMore than 20 exercise types; Active Zone Minutes; connected GPS uses a paired phone; automatic activity tracking.Built-in GPS; 20+ on-device exercise modes; Active Zone Minutes; automatic activity tracking; workout intensity maps in the Fitbit app.
Battery and connections
Battery life (maker's claim)Up to 10 daysUp to 6 days
Mobile data optionNoNo
Works withiPhone and AndroidiPhone and Android
Battery life detailUp to 10 days; actual battery life varies with use and settings.6+ days; a 12-minute charge provides up to one day of use. Continuous GPS and always-on display use reduce battery life.
ConnectivityBluetooth 4.0; connected GPS through a compatible phone. Phone setup and sync use the Google Health app; current phone requirements are Android 11+ or iOS 16.4+.Bluetooth 5.0, Wi-Fi and NFC; built-in GPS and GLONASS; microphone and speaker support Bluetooth calls with a paired phone. Phone setup and sync use the Google Health app; current phone requirements are Android 11+ or iOS 16.4+.
Design
SoftwareOtherOther
Case materialsPlastic housing and buckle; flexible elastomer band.Anodized aluminium housing with stainless-steel sensor ring; elastomer band.
Size37 × 16.8 × 12.9 mm; about 20 g with band.40.48 × 40.48 × 12.35 mm.
BandsSmall band fits 140–180 mm wrists; large band fits 180–220 mm wrists; compatible with an optional accessory clip.Small band fits 140–180 mm wrists; large band fits 180–220 mm wrists.
ColoursBlack; Lunar White; Desert Rose.Carbon/Graphite; Lunar White/Soft Gold; Sage Grey/Silver.

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