85points

Fitbit Charge 4

94points

Fitbit Inspire 3

Comparison winner
Fitbit Inspire 3
fitbit-inspire-3 1
fitbit-inspire-3 2
fitbit-inspire-3 3
fitbit-inspire-3 4
fitbit-inspire-3 5
fitbit-inspire-3 6
fitbit-inspire-3 7
fitbit-inspire-3 8
fitbit-inspire-3 9
fitbit-inspire-3 10
fitbit-inspire-3 11
vs
vs

140 facts in comparison

Fitbit Charge 4 vs Fitbit Inspire 3

Fitbit Charge 4
Fitbit Inspire 3

Why is Fitbit Charge 4 better than Fitbit Inspire 3?

  • Has GPS
    ?
  • Has branded damage-resistant glass
    ?
  • Has NFC
    ?
  • Has a route tracker
    ?
  • 3.57 mm shorter
    ?

    35.8 mmvs39.37 mm
  • 10 °C lower potential operating temperature
    ?

    -10 °Cvs0 °C
  • Has coaching
    ?
  • Is compatible with Windows
    ?

Why is Fitbit Inspire 3 better than Fitbit Charge 4?

  • 3 days longer battery life
    ?

    10 daysvs7 days
  • Has a temperature sensor
    ?
  • Locates your phone
    ?
  • 1 newer Bluetooth version
    ?

    5vs4
  • Has irregular heart rate warnings
    ?
  • 0.82 mm thinner
    ?

    11.68 mmvs12.5 mm
  • 40% bigger screen size
    ?

    1.4"vs1"
  • Has a built-in camera remote control function
    ?

Cheap alternatives

User reviews

Overall rating

Fitbit Charge 4
8.0
1 User reviews
Fitbit Charge 4
8.0/10
1 User reviews
Fitbit Inspire 3
6.0
1 User reviews
Fitbit Inspire 3
6.0/10
1 User reviews

Features

Build quality

9.0/10
1 votes
4.0/10
1 votes

Design

7.0/10
1 votes
6.0/10
1 votes

Heart rate monitoring

10.0/10
1 votes
10.0/10
1 votes

App

7.0/10
1 votes
No reviews yet
 

Fitness features

8.0/10
1 votes
No reviews yet
 

Comments

nedthedj

nedthedj

2 years ago

8 / 10

Great as a first fitness tracker

nedthedj

nedthedj

2 years ago

8 / 10

The GPS drains the battery too fast, the app features are limited, and the black and white screen is dim. Otherwise, I would totally recommend this tracker.

0 users found this helpful

Design

The size of the screen (measured diagonally).
Display type

OLED/AMOLED

OLED/AMOLED

The type of technology used in the display.
is dustproof and water-resistant
Fitbit Charge 4
Fitbit Inspire 3
The device is dustproof and water-resistant. Water-resistant devices can resist the penetration of water, such as powerful water jets, but not being submerged into water.
Ingress Protection (IP) rating

Unknown. Help us by suggesting a value. (Fitbit Charge 4)

IP68

The first number of the IP rating refers to protection against dust, while the second number refers to protection against liquid. E.g. a first number of 6 denotes that it is completely dustproof, and a second number of 7 denotes that the device can withstand full immersion in water.
ATM rating

5 ATM

Unknown. Help us by suggesting a value. (Fitbit Inspire 3)

The ATM rating indicates how much water pressure a device can withstand. 3 ATM is one of the lowest ratings and means that the device can only withstand splashes of water, whereas 20 ATM is one of the highest ratings and means that the device can be used for snorkeling and water sports.
pixel density

189 ppi

Unknown. Help us by suggesting a value. (Fitbit Inspire 3)

Pixel density is a measurement of a screen's resolution, expressed as the number of pixels per inch (PPI) on the screen. A higher pixel density translates into more clarity and sharpness for the images rendered on the screen, thus improving the quality of the viewing experience.
resolution

Unknown. Help us by suggesting a value. (Fitbit Charge 4)

124 x 208 px

Resolution is an essential indicator of a screen's image quality, representing the maximum amount of pixels that can be shown on the screen. The resolution is given as a compound value, comprised of horizontal and vertical pixels.
refresh rate

Unknown. Help us by suggesting a value. (Fitbit Charge 4)

Unknown. Help us by suggesting a value. (Fitbit Inspire 3)

The frequency at which the display is refreshed (1 Hz = once per second). A higher refresh rate results in smoother UI animations and video playback.
has branded damage-resistant glass
Fitbit Charge 4
Fitbit Inspire 3
Damage-resistant glass (such as Corning Gorilla Glass or Asahi Dragontrail Glass) is thin, lightweight, and can withstand high levels of force.

Sensors

has GPS
Fitbit Charge 4
Fitbit Inspire 3
GPS enables global positioning, useful in map, geo-tagging or navigation apps.
Has a heart rate monitor
Fitbit Charge 4
Fitbit Inspire 3
A heart rate monitor can help show your fitness levels, enabling you to calculate a suitable intensity of exercise.
Monitors blood oxygenation levels
Fitbit Charge 4
Fitbit Inspire 3
Your blood oxygen level is a measurement how much oxygen is reaching your muscles. It is important because low levels mean that you will become easily fatigued during exercise. The more exercise you do, the better your blood oxygen levels will become.
Has ECG technology
Fitbit Charge 4
Fitbit Inspire 3
ECG stands for electrocardiogram and measures the electrical activity of the heartbeat, which is a more in-depth reading of heart health than blood pressure alone. Note: This feature may not be available in all markets.
Has a temperature sensor
Fitbit Charge 4
Fitbit Inspire 3
With a temperature sensor you can monitor changes in temperature to measure your exertion levels and avoid hyperthermia.
Has a barometer
Fitbit Charge 4
Fitbit Inspire 3
This measures barometric air pressure. It can predict weather changes, for example a sudden drop in air pressure could mean a storm is coming. When calibrated correctly it can be used to determine altitude, which helps GPS devices to lock on quicker and with greater accuracy.
has a gyroscope
Fitbit Charge 4
Fitbit Inspire 3
A gyroscope is a sensor that tracks the orientation of a device, more specifically by measuring the angular rotational velocity. Initially, they were built using a spinning rotor to detect changes in orientation, like twisting or rotation.
Has a cadence sensor
Fitbit Charge 4
Fitbit Inspire 3
A cadence sensor measures the number of pedal revolutions per minute when you are cycling. It enables you to monitor how fast you are pedaling.
Monitors perspiration
Fitbit Charge 4
Fitbit Inspire 3
The device can measure the level of perspiration on your skin, indicating the level of intensity of your workouts.

Activity tracking

Detects activities automatically
Fitbit Charge 4
Fitbit Inspire 3
The device automatically detects when you start an activity such as jogging, saving you from entering it manually at a later time.
Has multi-sport mode
Fitbit Charge 4
Fitbit Inspire 3
A multi-sport mode allows you to easily switch between tracking different sports such as running, cycling, and swimming. This feature is ideal for those who need to change quickly between various activities (e.g., triathletes).
Has exercise tagging
Fitbit Charge 4
Fitbit Inspire 3
After exercising, you can add details about your workout (e.g., jogging, swimming, cycling). This enables the device to provide more accurate information, such as the number of calories burned.
Tracks elevation
Fitbit Charge 4
Fitbit Inspire 3 (Fitbit)
It can detect changes in elevation, such as when you are climbing stairs.
Tracks distance
Fitbit Charge 4
Fitbit Inspire 3
It tracks how far you travel.
Tracks steps taken
Fitbit Charge 4
Fitbit Inspire 3
It tracks how many steps you take throughout the day, allowing you to see how active you have been.
Has a route tracker
Fitbit Charge 4
Fitbit Inspire 3
With a route tracker you can add your route onto a map. It is helpful if you plan to do the same route again, or want to share it with your community.
Measures pace
Fitbit Charge 4
Fitbit Inspire 3
Measuring pace shows how much time it takes to travel one kilometer or one mile. For example, in running, a 4 minute kilometer would be a very good pace.
Tracks your sleep
Fitbit Charge 4
Fitbit Inspire 3
It can track your sleep, such as how long you sleep for and the quality.

Connectivity

supports Wi-Fi
Fitbit Charge 4
Fitbit Inspire 3
The device can connect to Wi-Fi.
Bluetooth is a wireless technology standard that allows data transfers between devices placed in close proximity, using short-wavelength, ultra-high frequency radio waves. Newer versions provide faster data transfers.
has NFC
Fitbit Charge 4
Fitbit Inspire 3
NFC (near-field communication) allows a device to perform simple wireless transactions, such as mobile payments. Note: this feature may not be available in all markets.
Is compatible with Android
Fitbit Charge 4
Fitbit Inspire 3
It is compatible with a range of Android devices such as smartphones and tablets.
Is compatible with iOS
Fitbit Charge 4
Fitbit Inspire 3
It is compatible with a range of iOS devices such as iPhones, iPads and the iPod Touch.
supports Galileo
Fitbit Charge 4
Fitbit Inspire 3
Galileo is a global navigation satellite system (GNSS) that is similar to GPS. Supported devices can use a combination of Galileo and GPS for location-based services such as Google Maps, and tend to be around 30% more accurate than GPS-only devices.
Wi-Fi version

Unknown. Help us by suggesting a value. (Fitbit Charge 4)

Unknown. Help us by suggesting a value. (Fitbit Inspire 3)

The Wi-Fi versions supported by the device.
supports ANT+
Fitbit Charge 4
Fitbit Inspire 3
ANT+ is a wireless protocol similar to Bluetooth Smart, and is very power efficient. It is mainly used for fitness monitoring devices such as heart rate monitors and cadence sensors to connect to other devices (e.g., sports watches, smartphones, and cycling computers).
has a cellular module
Fitbit Charge 4
Fitbit Inspire 3
Devices that use cellular technology can connect to mobile networks. Cellular networks have much wider signal coverage than Wi-Fi.

Battery

battery life

7 days

10 days

With a longer battery life, you don’t have to worry about charging the device as often.
battery life with GPS on

Unknown. Help us by suggesting a value. (Fitbit Charge 4)

Unknown. Help us by suggesting a value. (Fitbit Inspire 3)

There is less chance that you will run out of battery during an adventure.
charge time

Unknown. Help us by suggesting a value. (Fitbit Charge 4)

2 hours

The time it takes to fully charge the battery.
has wireless charging
Fitbit Charge 4
Fitbit Inspire 3
It supports a wireless charging standard such as Qi. To charge the device, you simply put it down on a compatible charging pad.
battery power

Unknown. Help us by suggesting a value. (Fitbit Charge 4)

Unknown. Help us by suggesting a value. (Fitbit Inspire 3)

Battery power, or battery capacity, represents the amount of electrical energy that a battery can store. More battery power can be an indication of longer battery life.
battery life in training mode

Unknown. Help us by suggesting a value. (Fitbit Charge 4)

Unknown. Help us by suggesting a value. (Fitbit Inspire 3)

With a long battery life, you can train for several hours a week and only have to recharge the device every few weeks.
battery life in power save mode

Unknown. Help us by suggesting a value. (Fitbit Charge 4)

Unknown. Help us by suggesting a value. (Fitbit Inspire 3)

In power save mode you can still check what time it is and other basic functions. A long battery life is good if you wear the device day to day.
Has a solar power battery
Fitbit Charge 4
Fitbit Inspire 3
A solar battery takes its energy from light, and stores it in a self-recharging battery which never needs to be changed.
has a rechargeable battery
Fitbit Charge 4
Fitbit Inspire 3
The battery can be recharged and used over again.

Features

has HRV tracking
Fitbit Charge 4
Fitbit Inspire 3
Heart rate variability (HRV) tracking measures fluctuations in the time between heart beats. These fluctuations can be an indication of health conditions (such as heart conditions or mental health issues). Note: This feature may not be available in all markets.
measures VO2 max
Fitbit Charge 4
Fitbit Inspire 3
VO2 max capacity is a measurement of the amount of oxygen your body can use during physical exercise. A high VO2 max capacity indicates good fitness levels.
measures resting heart rate
Fitbit Charge 4
Fitbit Inspire 3
This measurement is your heart rate per minute when you're at rest, such as when you're relaxed, sitting, or lying down. For adults, this is typically between 60–100.
has fast/slow heart rate notifications
Fitbit Charge 4
Fitbit Inspire 3
It can notify you when your resting heart rate is above or below the normal range.
shows readiness level
Fitbit Charge 4
Fitbit Inspire 3
This is based on various information, such as your previous workout, sleep quality, and stress levels. Taking everything into account, it will give you an idea of whether your body is ready for another workout or if you should focus on recovery.
Has smart alarm
Fitbit Charge 4
Fitbit Inspire 3
It determines when you are in a light state of sleep and wakes you up within a set period of time before your alarm. This can allow you to wake up feeling fresher and more alert.
Has silent alarm
Fitbit Charge 4
Fitbit Inspire 3
The device can wake you using vibration, so as not to disturb anyone else sleeping in the room.
Has call control
Fitbit Charge 4
Fitbit Inspire 3
The device alerts you to incoming calls on your smartphone, and allows you extra control such as muting or rejecting the call.
Locates your phone
Fitbit Charge 4
Fitbit Inspire 3
The device has a feature that allows you to find your smartphone if you have misplaced it.

App & Software

Counts how many calories you've burned
Fitbit Charge 4
Fitbit Inspire 3
This is useful if you are on a strict training diet or if you are trying to lose weight. It can also help to boost your motivation.
Provides activity reports
Fitbit Charge 4 (Fitbit App)
Fitbit Inspire 3
Your activity data is analysed to give you reports, available to view through the app or website. This allows you to see how active you have been and to help you make improvements.
Has inactivity alerts
Fitbit Charge 4
Fitbit Inspire 3
The device detects when you have been idle for too long, and alerts you to encourage you to stay active.
Has goal setting
Fitbit Charge 4
Fitbit Inspire 3
Allows you to set your own goals, such as reaching 15,000 steps in a single day.
Has achievements
Fitbit Charge 4
Fitbit Inspire 3
You are awarded achievements for reaching goals, helping to encourage you and keep you motivated.
Supports routes
Fitbit Charge 4
Fitbit Inspire 3
You can create or find existing routes to sync to the app.
number of exercises

Unknown. Help us by suggesting a value. (Fitbit Charge 4)

Unknown. Help us by suggesting a value. (Fitbit Inspire 3)

The total number of fitness exercises the app supports. Fitness apps that offer more exercises enable you to increase the complexity of your workouts.
Has barcode scanner on app
Fitbit Charge 4
Fitbit Inspire 3
The app supports scanning food barcodes using the camera. It checks a food database and adds the item based on its barcode, allowing you to quickly and easily track your calorie intake.
Can be personalised
Fitbit Charge 4
Fitbit Inspire 3 (Fitbit)
You can personalize the appearance of the app - for example, choosing a different theme or colors.

Miscellaneous

has a battery level indicator
Fitbit Charge 4
Fitbit Inspire 3
An indicator shows you when the device has low battery.
maximum Bluetooth range

Unknown. Help us by suggesting a value. (Fitbit Charge 4)

10 m

The device can connect at a greater distance via Bluetooth or infrared to another device.
has an ambient light sensor
Fitbit Charge 4
Fitbit Inspire 3
An ambient light sensor adjusts the luminance of the device according to the amount of natural light that surrounds it.
supports Wi-Fi 5 (802.11ac)
Fitbit Charge 4
Fitbit Inspire 3
802.11ac wireless works on the 5GHz frequency range. It offers higher transfer rates, improved reliability, and improved power consumption. It provides advantages for gaming and HD video streaming.
has an external memory slot
Fitbit Charge 4
Fitbit Inspire 3
The device has a standard memory slot (such as an SD or micro SD card slot) that enables you to extend the built-in internal storage with affordable memory modules, or easily retrieve data, such as photographs, from the memory card.
supports Wi-Fi 4 (802.11n)
Fitbit Charge 4
Fitbit Inspire 3
Wi-Fi 4 (802.11n) is a wireless standard released in 2009. It has faster transfer rates and improved security compared to its predecessors – a, b, and g.
Is compatible with Windows
Fitbit Charge 4
Fitbit Inspire 3
It is compatible with PCs and laptops running the Windows operating system.
has a socket for a 3.5 mm audio jack
Fitbit Charge 4
Fitbit Inspire 3
With a standard mini jack socket, you can use the device with most headphones.
Is compatible with Mac OS X
Fitbit Charge 4
Fitbit Inspire 3
It is compatible with Mac OS X devices such as MacBooks and iMacs.

Which are the best fitness trackers?

Show all
This page is currently only available in English.