Wellness Reviews For Family

Fitbit charges 4 Review -the american smart health connected bracelet

the american smart health connected bracelet watch

Fitbit charges 4 Review The American smart health connected watch benefits from a few improvements including the integration of a GPS.

Fitbit charge 4  review -the American smart health connected wristwatch

Price 149 $ | Fitbit  | Release date March 31, 2020

Fitbit is further developing its range of smart health connected watch with sport and health-oriented activity monitoring. Each new model benefits from the experience of Californian company founded in 2007 to improve its performance by keeping the same price. In this fourth version, Fitbit adds a built-in GPS to do without its smartphone for activity tracking.

Fitbit charge 4 design: comfort and lightness

A design similar to that which made the success of the Charge 3 launched in 2024. It remains a model of smart health connected bracelet ultra light and comfortable to wear for the practice of many sporting activities. But, she also takes advantage of a range of accessories to personalize and wear it every day.

  • touchscreen
  • dial is aluminum s
  • scratch resistant Gorilla glass.

The four original finishes:

  • Dial in aluminum with black case and bracelet,
  • The version violet or “rosewood” according to Fitbit,
  • Or the black case and bracelet model Navy blue.
  • Finally, a special edition still with the black case, but a woven reflective granite bracelet.

Fitbit Charge 4 new reflective bracelet

The whole gives off a excellent perceived quality and solidity, even if I didn’t push the Review to make glass scratch or drop tests 2 meters high.

An easy to personalize wristwatch

As with the previous models, you can easily change your bracelet. It only takes a few seconds to remove and replace each side. One of the most practical solutions that allows you to adapt the bracelet according to your activity.

Many bracelets are available on the internet to radically change the style of your watch from $ 5 for. The most expensive bracelet models in general are those in Milanese mesh. Here you can find it for 12 $. Guaranteed luxury effect.

Fitbit charge 4 price notice test Milanese mesh bracelet
Milanese mesh bracelet Fitbit Charge 4

Main Features

  • monitoring optical heart rate
  • GPS integrated
  • SpO2 sensor
  • Chip NFC
  • Altimeter
  • 3-axis accelerometer
  • Bluetooth
  • Waterproof

Features and new features of the Fitbit charge 4

  • View your entire messages and notifications (calendar, weather, SMS, calls)
  • Pin up 2 applications at the same time.
  • Cycle monitoring (female health). With the Fitbit p app you can record your period, your symptoms and see where you are in your menstrual cycle.
  • Finally the integration of a GPS, instead of using the one on your phone. Track your performance during your races, bike rides and hikes to measure your pace and the distance traveled. Charge 4 also gives you your training card in the Fbitbit app. The smart health connected bracelet now supports 7 different activities independently (without smartphone) including running and climbing. It automatically synchronizes the data with the application as soon as it is near the mobile.
  • Also, the presence of the SpO2 sensor which monitors the level of oxygen saturation in the blood. This ensures monitoring of risks or respiratory disorders. In this regard, several companies are working on an adaptation to detect the Coronavirus symptoms.
  • More motivation with music control since Spotify to listen to your favorite songs and browse your playlists and podcasts directly from your Charge 4.
  • Fitbit Pay, contactless in-house payment. But, limited only to Fortuneo, Revolut, TransferWise, Boursorama, Bunq, Boon or Crédit Mutel Arkea, Brittany, Massif central, Sud-Ouest customers.
  • But above all a excellent activity and sleep tracking with the addition smart alarm clock. This wake-up mode uses the artificial intelligence of the app and your sleep data to wake you up at the best time in your sleep cycle.

Excellent autonomy for a smart health connected watch

The Fitbit charge 4 synchronizes with your smartphone on Android or iOS. She can run for up to 7 days without recharging according to your activity. This remains excellent, even if the model 4 does nothing better in this area.

Display notifications from your smartphone on your wrist

Stay smart health connected to the basics: call notifications, SMS, calendar and smartphone apps + send quick responses (Android only).

Fitbit charge 4 waterproof connected bracelet sports tracking

Fitbit charge 4: monitoring of 20 sports activities

  • Follow more than 20 sports activities, set your goals and follow your progress in real time.
  • Breathing sessions. Enjoy moments of calm throughout the day by following guided and personalized wrist breathing sessions based on your heart rate.
  • Continuous monitoring of your cardiac frequency. Charge 4 uses heart rate sensors and algorithms to provide us with useful information about the state of our heart. You can activate the real-time display of the cardio zones to see where you are (Fat elimination, Cardio and Maximum) and better measure the impact of your sports activities.
  • Minutes in active zone. A novelty that tells you the heart rate zone you are in. So you can verify that you are working hard enough to achieve your goals.
  • Training intensity card. Visualize in real time the heart rate zone you are in (Fat elimination, Cardio or Maximum) to get the most out of each session.
  • Tracking calories burned during the day. Stay on track with your goals by tracking the number of calories burned during your various activities (walking to work also counts).
  • Daily dashboard. View your personal activity statistics with a daily dashboard that shows you steps, calories burned, sleep, heart rate and more.


Fitbit Charge 4 takes care of your health

The Fitbit Virtual Coach Charge 4 special edition 2020

The more you wear your watch, the more data it collects to help you progress. For this, it uses the automatic tracking SmartTrack of all your sports activities.

As with the Apple Watch, you will be invited to get up if you are inactive for too long during your day or you relax (guided and personalized wrist breathing sessions, based on your heart rate).

Sleep monitoring and sleep apnea diagnosis

Find out how much time you spend in each sleep phase (light, deep and REM) and benefit from personalized information to set up a more efficient sleep routine.

Fitbit could also use the SpO2 sensor to diagnose sleep apnea after approval from health authorities in the United States.

With this SpO2 sensor, the Charge 4 could give participants of the current Sleep Score Beta Review program very precise information on their state of health, diagnose specific situations and create alerts in the event of a problem.

Women’s health

Use your Charge 4 with the Fitbit app to record your period and symptoms and see where you are in your cycle. For this part (which is not mine, I am not in the target) I invite you to read the paragraph presented during the Review of the Fitbit Versa.

The Fitbit app

Set goals, get inspired, connect with friends and get insights into your health and fitness.

The latest update has corrected many synchronization issues.

Improvements of the latest version:

  • You can now make payments (Fitbit Pay) with your special Fitbit Charge 3 edition.
  • You can accept and reject calls directly from your watch.
  • If you’re using an Android phone, you can use quick replies on your Charge 3 to send messages. personalized replies to text messages and messages from certain applications.


One of the functions that can be used for all sports activities is Relax

An anti-stress and recovery breathing system based on your heart rate directly displayed on the Fitbit screen. No need to take out your smartphone and launch a dedicated app.

Like on an Apple Watch, you are guided by a small circle that expands when you breathe in and shrinks when you breathe out. If the breathing is well done and deep enough, small stars appear to congratulate you.

How to launch the Relax app on Fibit charge 4

  1. On your watch, tap the app Relaxed.
  2. The 2-minute session is the default option. Tap the gear icon or slide your finger to choose to do a 5-minute session. For Ionic and Versa, then press the Back button to return to the Relax screen.
  3. Tap the play symbol to start the session.
  4. Stay still and breathe deeply during the calibration period, which lasts between 30 and 40 seconds. The message “detecting your breath” will then appear on your screen.
  5. When prompted, follow the guide (the circle on your screen) and breathe deeply. You can close your eyes because your device will vibrate to indicate that it’s time to breathe in and out.
  6. After exercise, a summary will display your alignment (i.e. how closely you followed the breathing instructions), your heart rate at the start and end of the session, and how many days you have worked a guided breathing session this week.

Note: you cannot interrupt the session, but you can cancel it at any time. To exit, press and hold the Back button on your watch.

The app is fine, but it could be improved with all user feedback. Its advantage is that Fitbit has a single mobile app for all of its products. So if you supplement your equipment with a scales like the Fitbit Aria 2 (95 $).

Fitbit charge 4 prices, availability and competitors

The Fitbit Charge 4 is officially sold at 149 $ and was available from April 15, 2020.

The special edition with reflective bracelet goes to 169 $.

in stock
55 new from $97.55
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as of 2024 24Asia/ShanghaipmThu, 23 May 2024 13:43:59 +0800 5 05202453101 23 23pm24 pm1:43
out of stock
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Fitbit charge 4 review

A slight improvement over the Charge 3. We obviously appreciate the addition of GPS and software updates that will benefit the entire range of Fitbit smart health connected watches and bracelets. We can still regret that at this price, the color screen is still not present.

Remains a price significantly higher than the Chinese competition which offers fairly close models for less than 40 $. This is the case for Xiaomi Mi Band 4 and Mi Band 5 to come up,


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