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Fitbit Inspire 3 vs Fitbit Versa 4

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

Better figure, where one is clearly better

FitbitInspire 3FitbitVersa 4
Overview
ReleasedSeptember 2022September 2022
Display
Case sizes39.32 mm40.5 mm
PanelOLEDOLED
Always-on displayYesYes
Display detailColour AMOLED touchscreen; always-on optioncolour AMOLED touchscreen; always-on option
Screen protectionCorning Gorilla Glass 3Corning Gorilla Glass 3
Health and fitness
ECGNoNo
Blood oxygenYesYes
Skin temperatureYesYes
Sleep apnoea alertsNoNo
High blood pressure alertsNoNo
Body compositionNoNo
Fall detectionNoNo
Crash detectionNoNo
GPSNoneSingle-band
Water resistance50 m50 m
SensorsOptical heart-rate sensor; 3-axis accelerometer; red and infrared SpO2 sensors; ambient light sensor; device temperature sensor for skin temperature variation; vibration motorOptical heart-rate sensor; 3-axis accelerometer; red and infrared SpO2 sensors; altimeter; ambient light sensor; skin temperature sensor; vibration motor; microphone and speaker
Health featuresSleep stages and Sleep Score, stress management, heart-rate alerts, SpO2 and skin temperature variation. Some detailed insights and features require Fitbit Premium; availability varies by country.Sleep tracking, SpO2, skin temperature variation, high and low heart-rate alerts and irregular heart rhythm notifications in supported regions; no ECG app or continuous electrodermal activity sensor.
Fitness featuresActivity tracking, Active Zone Minutes, more than 20 exercise modes and connected GPS using a paired phone; no built-in GPS.Built-in GPS and GLONASS; 40+ exercise modes; Active Zone Minutes; connected Google Maps directions and Google Wallet. GPS use reduces battery life.
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; a full 0–100% charge takes up to 2 hours. Battery life varies with use and settings.6+ days; always-on display and SpO2 use require more frequent charging. A 12-minute fast charge is stated to provide a day of battery life; a full 0–100% charge takes about 2 hours.
ChargingIncluded charging cable; full 0–100% charge in about 2 hours.Included charging cable; Google states a 12-minute charge provides a day of battery life; a full 0–100% charge takes about 2 hours.
ConnectivityBluetooth and connected GPS using a paired phone; compatible with Android 11 or newer and iOS 16.4 or newer using the Google Health app.Bluetooth 5.0; built-in GPS and GLONASS; NFC; Wi-Fi is disabled. On-wrist Bluetooth calls require a paired phone nearby. Compatible with Android 11 or newer and iOS 16.4 or newer using the Google Health app.
StorageSaves 7 days of detailed motion data minute by minute and daily totals for 30 days; heart-rate data at 1-second intervals during exercise and 5-second intervals at other times.Saves 7 days of detailed motion data minute by minute and daily totals for 30 days; heart-rate data at 1-second intervals during exercise and 5-second intervals at other times.
Design
Weight (lightest version)17.69 g37.64 g
SoftwareOtherOther
Case materialsSilicone band with plastic buckle and tang; Corning Gorilla Glass 3 display cover; water resistant to 5 ATM.Flexible sport-watch-style band; aluminium watch case and buckle; Corning Gorilla Glass 3 display cover; water resistant to 5 ATM.
Size39.32 × 18.6 × 11.75 mm; 17.69 g including band.40.5 × 40.5 × 11.2 mm; 37.64 g including band.
BandsSmall and large silicone bands included; small fits 130–190 mm wrists and large fits 160–220 mm.Small and large classic flexible-material bands included; small fits 130–180 mm wrists and large fits 165–220 mm.
ColoursMidnight Zen; Lilac Bliss; Morning Glow.Black/Graphite; Waterfall Blue/Platinum; Pink Sand/Copper Rose; Beet Juice/Copper Rose.
In the boxFitbit Inspire 3; small and large classic wristbands; charging cable.Fitbit Versa 4; small and large classic bands; charging cable.

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