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Fitbit Inspire 2 vs Charge 4 – Which is Right For You?

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Fitbit is no doubt one of the biggest names as far as the smartwatch and fitness industry is concerned. The brand has successfully carved out a niche for themselves with many of their devices like Versa 3, Sense, Versa 2, Inspire HR, Charge 3, and 4 being very popular among fitness enthusiasts. For those who don’t want the extra features that come with the full-fledged Fitbit smartwatches, their smartband is a decent alternative, and in that regard, the Inspire 2 and Charge 4 which are some of the latest from Fitbit comes to mind. These two have a lot of features in common, although Charge 4 is a more comprehensive fitness tracker, it comes with inbuilt GPS, altimeter, Spo2 measurements, and the ability to control your Spotify playlist on your phone. So which is right for you? Read further to compare the specs and features.

Fitbit Inspire 2 vs Charge 4 Full Specs Compared

Fitbit Inspire 2Fitbit Charge 4
Fitbit Inspire 2 Full Specificationsfitbit charge 4 specs and features

ABOUT DEVICE

Device nameFitbit Inspire 2Fitbit Charge 4
Device typeFitness SmartbandSport/Fitness smartwatch
PredessesorFitbit InspireFitbit Charge 3
SuccessorFitbit Inspire 3Fitbit Charge 5
Released dateSeptember, 2020March, 2020
Ideal forUnisexUnisex

DISPLAY

Display typeMonochrome OLEDOLED (monochrome)
Display size~ 1.4 inch1.57 inch
Display resolution126 x 36 px100 x 160 pixels
Pixel density93.6 PPI120.2 PPI
Input typeTouchscreenTouchscreen
Always-onNoNo
Customizable watch faceYesYes

BODY

ShapeRectangular/curvedRectangular/curved
Dimension37.3 x 16.7 x 12.7 mm35.8 x 22.7 x 12.5 mm
Weight__27 g
Casing materialPlastic ResinResin
Strap/band materialSiliconeElastomer
Bezel MaterialResinResin
Strap size140 - 180 mm (small)
180 - 220 mm (large)
140 - 180 mm (small)
180 - 220 mm (large)
Interchangeable band YesYes
Screen protectionCorning Gorilla GlassHardened Glass
Water resistant/ProtectionYes, 5ATMYes, 5ATM
Swim-proofYes, recommendedYes, recommended
Color(s)Black
Lunar white
Desert rose
Black
Rosewood/rosewood

MEMORY

RAM--N/A
Internal storage__N/A
Memory card slotNoNo

CONNECTIVITY

BluetoothBluetooth v4.0 LEBluetooth v4.0 LE
Bluetooth callingNoNo
Wi-FiNoNo
NFCNoYes
Payment systemNoFitbit Pay
GPSNo, (connected GPS)Yes

CELLULAR TECHNOLOGY

TechnologyNoNo
SIMNoNo
BandNoNo

NOTIFICATIONS

Email alertYesYes
SMS alertYesYes
Calls alertYesYes
Event reminderYesYes
WeatherYesYes
Third-party appsYesYes
Text responseNoYes (Android only)

FITNESS TRACKING

Sleep apneaNoNo
Sleep trackingYesYes
StepsYesYes
Floors climbedNoYes
Heart rate monitoringYesYes
CaloriesYesYes
DistanceYesYes
StressYesYes
VO2 Max.YesYes
Blood oxygenNoYes
Blood pressureNoNo
Menstrual cycle trackingYesYes
Swim trackingYesYes
Under-water heart rate trackingNoNo
Preloaded mapsNoNo
On-screen workout modesNoNo
Triathlon modeNoNo
ECG TrackingNoNo
Preloaded sport modesYes, 20Yes, 20+
Safety trackingNoNo

MEDIA

AudioNoNo
Music streamingNoNo
Bluetooth musicNoNo
RadioNoNo
LoudspeakerNoNo
MicrophoneNoNo
CameraNoNo

SENSORS

PLATFORM

Operating system (OS)Fitbit OSFitbit OS
Chipset--N/A
CPU--N/A
GPU--N/A

BATTERY

Type of batteryNon-removable lithium polymerNon-removable lithium polymer
Battery capacity _N/A
Battery lifeMixed usage: up to 10 daysStandby: 10 day+
Mixed usage: 7 days
Continuous GPS Tracking: 5 Hrs
Charging typeUSB based charging dockCharging Dock
Charging timeAbout 1-30 minsAbout 1-2 hours
Battery saver modeNoNo
Solar powerNoNo
Rapid chargingYesNo

CLOCK FEATURES

Time/DateYesYes
StopwatchYesYes
AlarmYesYes

OTHER FUNCTIONS

Control cameraNoNo
Music controlNoYes
Find phoneYesNo

MISC

Compatibility Android 8.0+, IOS 14.0+

Check supported devices
Android 7.0+
iOS 12.2+
Check your device compatibility
Companion appFitbit AppFitbit App
Voice commandNoNo

BOX CONTENTS

Fitbit Inspire 2Fitbit Charge 4
StrapsStrap (small and large)
Charging cableCharger
Quick start guideQuick start guide
NOTE: We can't guarantee that all the information on this table are 100% correct. Read full disclaimer. Please, report an error.
Official SiteOfficial Site

Fitbit Inspire vs Inspire HR vs Inspire 2 Features Compared

FeaturesInspire 2Charge 4
SMART FEATURES
DisplayGreyscale OLEDMonochrome OLED
Ambient lightNo
No
Always-on-display
Just glance to see what you need during workouts or when your hands are full. (will require frequent charging)
NoNo
Syncs Wirelessly
Automatically sync to most popular iOS and Android devices to show your stats, trends and progress on your Fitbit dashboard.
YesYers
Amazon Alexa Voice Assistant
Check the weather, set timers, control your smart home devices, and more, powered by Amazon Alexa. Amazon Alexa not available in all countries
NoNo
Google Voice Assistant
Check the weather, set timers, control your smart home devices, and more, powered by Google Voice.
NoNo
Music Storage
Store and play 300+ songs on your smartwatch—plus download your favorite Pandora stations or Deezer playlists. Paid subscriptions required. Pandora is US only.
NoNo
Make Payments
Use your credit and debit cards to make secure purchases anywhere that accepts tap-and-pay.See participating banks
NoYes
Smart Notification
See call, text, or calendar notifications on screen & get push notifications from smartphone apps.
YesYes
Connect With Wireless Headphones
Listen to your favorite tunes without the wires.
NoNo
Connect and Control Music on Spotify
Control your music, songs, and browse recent playlists and podcasts all from your wrist. Works with phone nearby; Spotify Premium subscription required. Not available in all countries.
NoYes
Sleep Mode
Use the sleep mode to mute smartphone notifications and stop your screen from turning on at night.
NoYes
Do Not Disturb Mode
Use do not disturb mode when you want to mute call, text, calendar, and app notifications during the day.
NoYes
Access Apps On Watch
Access your favorite apps for fitness, sports, news, travel, transit, and more with a simple tap.
NoNo
Loudspeaker and Microphone
Has a loudspeaker that allows you to play music aloud and as well make and receive calls via Bluetooth connection to the phone.
NoNo
EXERCISE FEATURES
Real-Time Using Built In GPS
See your real-time pace and distance without a phone, then get a map of your route in the Fitbit app.
NoYes
Real-Time Using Phone GPS
See your real-time pace and distance by connecting to your phone's GPS, then get a map of your route in the Fitbit app.
YesNo
Workout Intensity Map
After outdoor exercise, check your workout intensity map in the Fitbit app to see your heart rate zones throughout your route.
YesYes
Active Zone Minutes
Feel a buzz when you reach your target heart rate zones during exercise and celebrate when you earn extra minutes outside of workouts.
YesYes
Active Minutes
Calculates active minutes through metabolic equivalents (METs). This metric, which factors in your body mass, is used to estimate exercise intensity.
YesYes
Personalized Reminders
Stay on track toward your goals with personalized reminders that remind you to stay active, get hydrated, stick to a sleep schedule and more.
YesYes
SmartTrack Exercise Recognition
Automatically record select exercises like running, biking and more & see detailed workout information in the Fitbit app.
YesYes
20 Preset Workout Modes
Choose from 20+ exercise modes like run, bike, swim, yoga and more, set a goal, and get real-time stats during your workouts.
YesYes
Swimproof
Water-resistant up to 50M, so you can wear your tracker or smartwatch in the shower, pool, and beyond.
YesYes
Onscreen Workout Coach
Get personalized on-screen workouts that play on your wrist, coach you through each move and adapt based on your feedback.
NoNo
Sedentary Reminder
See how long you've been active throughout the day and get reminders to fit in a few extra steps when you've been sitting a bit too long.
YesYes
See Your Heart Rate Zones
Use your personalized fat burn, cardio, and peak heart rate zones to optimize your effort during workouts.
YesYes
HEALTH FEATURES
EDA Scan App
The on-wrist EDA Scan app detects electrodermal activity—which may indicate your body’s response to stress—and reveals a graph in the Fitbit app to illuminate it.
NoNo
ECG tracking
Monitors your heart rate and can help you detect irregular heart rhythms which can lead to AFib is left untreated
NoNo
Cardio Fitness Score (VO2 Max.)
Get a better understanding of your fitness level and see how you can improve over time with a personalized Cardio Fitness Score.
YesYes
Complete Sleep Tracking
See your time spent in light, deep and REM sleep stages and get sleep insights to help you improve. https://www.fitbit.com/us/technology
YesYes
Female Health Tracking
Know your body on a deeper level using your tracker or smartwatch with the Fitbit app to follow your cycle, record symptoms and more.
YesYes
Guided Breathing Session
Find moments of calm throughout your day with personalized breathing sessions based on your heart rate.
YesYes
SpO2 Sensor
Allows you to see how well your blood utilizes oxygen.
NoYes
24/7 Heart Rate Tracking
Use 24/7 heart rate to better track calorie burn, see your resting heart rate trends and get real-time guidance to optimize your workouts.
YesYes
Resting Heart Rate
Wear your tracker or smartwatch all day and night to record your resting heart rate and track heart rate over time.
YesYes
24/7 Activity Tracking
Track steps, distance, calories burned, active minutes, hourly activity, and stationary time.
YesYes
Altimeter
Counts floors climbed
NoYes
Sleep Score
Based on your heart rate, time asleep and restlessness, this personalized score helps you better understand your sleep quality each night.
YesYes
Sleep Tracking
Understand your rest with automatic sleep tracking and silent alarms on your wrist & bedtime reminders and helpful tips in the app.
YesYes
All Day Calorie Burn
Better understand the total number of calories you burn—all day and during workouts—to manage your weight and stay on track toward your goals.
YesYes
Battery Life10 days7 days
Fast ChargingNoNo

So, which is righht for you?

Fitbit Charge 4 is obviously a better fitness tracking device. It has a larger display that allows you to see more at a glance, it has inbuilt GPS that means you can track your outdoor activities without having to carry your phone along. It also features an altimeter that enables it to count floors climbed, and there is SpO2 tracking that allows you to see your blood oxygen level when you sleep and wake up with the Charge 4. You can also control the Spotify playlist on your phone with Charge 4 – all of which Inspire 2 lacks.

However, Inspire 2 is still a decent fitness tracker. It’s a cheaper alternative, yet equipped to track your heart rate, sleep, steps, all-day calorie burn, and more. It also features preloaded sport modes and Active Zone Minutes which was introduced with Charge 4. Active Zone Minutes can be very helpful in helping you maintain a fitness goal. Moreover, Inspire 2 has a longer battery life than Charge 4, and with connected GPS to your phone, it allows you to track outdoor activities.

So, in conclusion, if you want more activity-tracking features, then Charge 4 is a better choice. Otherwise, Inspire 2 is a decent alternative if you’re tight on budget.

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