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Fitbit Charge 4 Fitness and Activity Tracker with Built-in GPS, Heart Rate, Sleep & Swim Tracking, Black/Black, One Size (S &L Bands Included)

4.3 4.3 out of 5 stars 57,038 ratings

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Purchase options and add-ons

Brand Fitbit
Style Modern
Color Black/Black
Screen Size 1.5 Inches
Special Feature Time Display, Sleep Monitor, Activity Tracker, GPS, Heart Rate Monitor
Shape Rectangular
Target Audience Unisex Adult
Age Range (Description) Adult
Compatible Devices Smartphone
Display Type LED

About this item

  • Use built-in GPS to see your pace and distance on screen during outdoor runs, rides, hikes and more and see a workout intensity map in the app that shows your heart rate changes along your route
  • With 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 exercise
  • Get a 90-day free trial of the Fitbit Premium to help you stay active, sleep well and manage stress. Unlock it all in the Fitbit app. (Valid payment method required. Cancel before free trial ends to avoid subscription fees. Offer valid for new Premium users only).Operating temperature: -20° to 60° C
  • Use 24/7 heart rate to track resting heart rate & better measure calorie burn. Syncing to mobile devices requires Bluetooth LE and internet connection. Syncs with Mac OS X 12.2 and up, iPhone 5S and later, iPad 5 gen. and later, Android 7.0 and later
  • See your SpO2 nightly average and range on wrist, and view trends over the past week in the Fitbit app (SpO2 is not available in all markets. The SpO2 feature is not intended to diagnose or treat any medical condition or for any other medical purpose)
  • Track your skin temperature each night to see how it varies from your personal baseline (Not available in all markets. Only available in the Fitbit app and only displays variation. Not intended for medical purposes)
  • Track workouts in real-time with 20+ goal-based exercise modes. It’s also swimproof and water resistant to 50 Meters, so you can track swims, wear in the shower and more
  • Multi-day battery lasts up to 7 days and up to 5 hours when using built-in GPS (varies with use & other factors). Track sleep stages & review your in-app Sleep Score for an easy way to see how well you slept

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CHOKING HAZARD -- Small parts. Not for children under 3 yrs.

From the manufacturer

fitbit Charge 4 watches on a grey toned background
Rosewood fitbit Charge 4 watch
fitbit Premium

Product Description

With Fitbit Charge 4, there’s no limit to how far you can go. This sleek, swimproof tracker is packed with features that help you know your workouts and your body better like built-in GPS, Active Zone Minutes, Sp02, exercise modes and sleep tracking. Plus, with Fitbit Pay and up to 7-day battery life, you get more convenience on the go and more inspiration to reach your fitness goals.

Product details

  • Product Dimensions ‏ : ‎ 9.72 x 1.13 x 0.49 inches; 3.53 ounces
  • Item model number ‏ : ‎ FB417BKBK
  • Batteries ‏ : ‎ 1 C batteries required. (included)
  • Date First Available ‏ : ‎ March 31, 2020
  • Manufacturer ‏ : ‎ Fitbit Inc
  • ASIN ‏ : ‎ B084CQ41M2
  • Customer Reviews:
    4.3 4.3 out of 5 stars 57,038 ratings

Product guides and documents

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Fitbit Charge 4 Fitness and Activity Tracker with Built-in GPS, Heart Rate, Sleep & Swim Tracking, Black/Black, One Size (S &L Bands Included)
Fitbit Charge 4 Fitness and Activity Tracker with Built-in GPS, Heart Rate, Sleep & Swim Tracking, Black/Black, One Size (S &L Bands Included)
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Price-17% $124.39
List:$149.95
$99.95$99.95-22% $62.00
List:$79.95
-25% $149.95
List:$199.95
Delivery
Get it as soon as Friday, May 17
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Customer Ratings
Sleep tracking
3.8
3.9
3.9
4.2
3.9
Mobile App
3.8
4.0
4.0
4.4
3.8
Accuracy
3.6
3.8
3.8
4.2
4.3
Battery life
4.5
4.5
4.8
4.0
Sold By
Melbourne Express
Heart Rate Monitors USA
Amazon.com
Delightful Brands
Heart Rate Monitors USA
operating system
Android
android
android
android
ios
display size
1.5 inches
1968.51 inches
3 inches
0.72 inches
1.69 inches
connectivity tech
GPS, Bluetooth
USB
Ethernet
supported applications
GPS
Sleep Monitor, Heart Rate Monitor, Alarm, Phone, Fitness Tracker, Reminders
Sleep Monitor, Heart Rate Monitor, Alarm, Phone, Fitness Tracker, Reminders
Fitness Tracker
GPS, Phone
input interface
touch screen
touch screen
touch screen
touch screen
touch screen stylus pen
wireless standard
bluetooth
bluetooth
bluetooth
bluetooth
bluetooth
water resistance
water resistant
water resistant
water resistant
water resistant
water resistant

Important information

Wattage

180 watts

Legal Disclaimer

Statements regarding dietary supplements have not been evaluated by the FDA and are not intended to diagnose, treat, cure, or prevent any disease or health condition.

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Customer reviews

4.3 out of 5 stars
4.3 out of 5
57,038 global ratings
Great
5 Stars
Great
This is my third one. Not because it is bad. I am hard on them as I do manual labor. Charge lasts at least a week, unlike my iwatch 10 hrs. The band could be a little bit more durable. Great product
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Top reviews from the United States

Reviewed in the United States on May 8, 2024
Color: Black/BlackEdition: RegularVerified Purchase
My husband has been a Fitbit smart watch wearer for a long time. I think this may be his 3rd or 4th new one. He upgraded to this one and is very happy he did. He personally found the band a little hard to fasten because he has large arthritic fingers so we purchased a stretch band and now he's good to go with this smart watch. One thing he particularly likes is that the screen it a bit bigger than the last version he was using.
Reviewed in the United States on August 28, 2020
Color: Black/BlackEdition: RegularVerified Purchase
I purchased this when my Charge 2 started having issues tracking my heart rate during cardio/peak exercise and no longer showed my stats "live" in the phone app (I had to track by looking at the watch each time or forcing a sync). I had a few issues getting the new one to work well with my heart rate too but once I figured it out it worked well. I'll go into what worked and what didn't at the end of my review, because without the heart-rate feature I would rate this a 2... but WITH it, I love the thing and give it a 5.

Spotify: I have not used this feature and have no interest in it. I tend to watch streaming shows during my workouts because it's 8,000 degrees outside most days in Texas and I would rather be inside with the AC.

Swimming: I am very excited about this feature, but with the current COVID situation I haven't gotten to test it out yet. I like the idea of being able to track my swims as well as my runs though and can hardly wait to try it out. That said, I HAVE worn it in the shower a few times because I forgot to take it off and it survived that with no issues.

Comfort and Weight: This thing is significantly lighter than the Charge 2, and the band is easier to change out. It makes it more comfortable to wear while sleeping.

Sleep Tracking: This is one of my favorite features, and I like the addition of the oxygen variation tracking. I was hoping that the oxygen tracking would be more than just sleep, but hey, it's nice to know I don't have sleep apnea. The feature basically tells you if you have "high" or "low" variations in your oxygen, and for the most part mine are low. The rest of the sleep feature tracks Awake time, REM time and Light vs Deep sleep. It provides an average trend for your sleep over time, plus a "benchmark" and a "sleep score" so you know how you did. It's helped me be more mindful of my sleep and improve the quality.

Heart rate: This tracks my heart rate well and tends to align closely with my treadmill's tracker. I had trouble getting it to read me consistently at first at higher zones, but keeping the watch just below the wrist bone one notch tighter than I normally wear it + using the phone app to look at my heart rate rather than regularly checking the watch helped. That, and I use the watch's exercise app to track the workout now rather than letting it auto-detect like I used to. No issues since.

Cardio fitness score: I like knowing where I rank with average and seeing my numbers slowly improve as I get more fit. I wish that there was a feature I could turn on to track pregnancy, however, because your resting rate goes up significantly when pregnant and it lowers your score.

Female health tracking: I used to use Fitbit for this. It works well if you keep up with it, but I have another app (Ovia) that I preferred to use once I was trying to conceive.

Active Zone Minutes: This feature annoyed me at first. You get twice the minutes for being in Cardio or Peak, and I didn't care to know how many "extra" minutes I got, I wanted to watch my "actual" minutes of workout. Well, at the end the app tells you how many "actual" minutes you get for the workout anyway and as long as you somewhat pay attention to the time (or use your treadmill to track it) you'll know while you're working out too. I get why this is a feature - being in cardio or peak is better than being in fat-burn for calories and workout quality so it encourages you to beef up the exercise, but I was being cranky and resistant to change.

GPS: If you do go out and run, GPS eats your battery for lunch. But it's cool to see where you've been

Battery: When not using GPS, it's awesome. SO much better than my previous fitbit.

Texting and Calendar: I like having the texts in a block instead of scrolling by like on the Charge 2, and the Calendar is always nice. Sometimes you're not with your phone and a tap from your watch to remind you you've got a meeting or an appointment is really handy.

Hourly reminders to move: I used this less when I was in the office every day but now that I am pretty much perma-telework it's great. Even if I'm in a meeting I can get up and move and I feel accomplished when I get 9/9!

Customizable clock face: Being resistant to change, I liked that I could put the "classic" watch face on my new Charge 4. I appreciate being able to see my step count, heart rate, date and time all at the same time and none of the "new" ones did that for me. The closest one had a sort of circle thing that tracks how close you are to your step count goal but that's not a feature I care as much about so I went back to my old ways.

Automatic exercise recognition: I used to use this all the time, but when the Charge 4 was also losing my heart rate, I started using the exercise tracking apps and that seems to help. While it does auto-recognize my exercise that only works if it can read my heart rate properly.

Fitbit losing my heart rate:
So, when I do my treadmill runs I like to be able to have the app open and watch my count and heart rate there rather than having to look at the watch over and over. When my Charge 2 stopped doing that, I got into the habit of checking my wrist regularly only to find that my heart rate had stopped tracking and I wound up spending most of the workout adjusting the watch to get it to read. It was disappointing to do the full workout and not get "credit" for that work. Yeah, I know, I exercised anyway but I like seeing the trend and the data.

So, I bought the new Charge 4 to fix that issue, only to find that it had issues tracking my heart rate as well. After much finagling, I figured out that my new habit of constantly checking my watch was the issue. To resolve that problem, I eventually found that if I used the "exercise" watch app and set it to "treadmill" plus use the Fitbit phone app to watch my heart rate rather than the watch, I have 0 issues getting it to continue tracking my heart rate. I also tighten the band one notch each time and leave it snug just below my wrist bones so it doesn't move so much, even when I sweat.

Here's the stuff I tried that didn't work, just to save you some time:
1) Turning the watch upside down
2) Moving the watch higher on my arm and tightening it. My watch tended to slip around more the further it was from my wrist
3) Moving the watch lower on my arm and tightening it. My wrist bends made it lose my heart rate less frequently here, but it still lost it
55 people found this helpful
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Reviewed in the United States on March 11, 2024
Color: Black/BlackEdition: RegularVerified Purchase
Write a bad review and they promise you the moon! And then you don’t hear from them.
Bought Jan 24, 2024, return policy stops Feb 24 and now the Fitbit has quit. I won’t have another although supplier promised money return and new priduct. No thanks!
Reviewed in the United States on July 27, 2021
Color: Black/BlackEdition: RegularVerified Purchase
I came to purchase my Fitbit Charge 4 after years of being an Apple Watch guy. Unfortunately, one day while wearing my Apple Watch during a brief swim in the pool, it started acting wild, trying to make emergency calls every couple minutes, then died for a week and now won’t stay charged for more than a few hours at a time. But I digress. .. I did some online research and the Fitbit Charge 4 seemed to be the way to go.
And for the most part, it is! The Fitbit is more intuitive than the Apple Watch when it comes to workouts. Too many times I would go on a lengthy walk with the Apple Watch, only to not have it register anything. And really, what’s the point of using my damn legs if I don’t get some kind of credit for it?? The Fitbit usually picks up on most workouts, without you having to tell it when you’re working out. I love that aspect of it.
The Apple Watch is much prettier to look at, but the Fitbit has a serviceable display that’s easy to navigate. It will keep your calendar, you can set timers/alarms, and I see the Spotify app on there, but I personally haven’t used it.
And then there’s the sleep score! Just when I thought sleeping couldn’t get more enjoyable, Fitbit turns it into a game. Now I’m checking my score first thing in the morning, then screaming at my children for not letting me achieve a better sleep score. Those rotten kids!!
For some reason you are unable to turn the Fitbit off. I have no idea why the designers thought this was a positive but I do not. Please just let me turn off future Fitbits, Fitbit designers!
All in all I prefer my Charge 4 to the Apple Watch. It might not look as pretty, but it gets the job done, which is the exact reason my wife tells me she picked me over ol’ Jim Bryson. Sorry Jimbo!
2 people found this helpful
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Reviewed in the United States on April 19, 2024
Color: Black/BlackEdition: RegularVerified Purchase
Replacement for my original Fitbit 4. My Fitbit is a key to my quality of life. The heart rate, steps taken, calories used, minutes of moderate and intensive exercise and other items of data enable me to keep fit and healthy as my body changes over he years. I would be lost without it. The supporting application allows me to monitor progress over time.

Top reviews from other countries

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ArrowHead
5.0 out of 5 stars Nice fit finish and function
Reviewed in Canada on August 18, 2021
Color: Black/BlackEdition: RegularVerified Purchase
I bought this as a replacement for my old Charge 2 which was pretty beaten up after 4 years of use. Some of the upgrades are more modest than others. Personally I like how the screen resolution is higher than their previous offerings and they've added a shade or two of gray. It's very easy on the eyes.

As for the fitness tracking features, I haven't put them through any hard tests but they seem to be as accurate as ever.

The Charge 4 works just fine with the app on my phone even though my old Charge 2 is also still paired. In fact I can wear my old Charge 2 at work and then wear my Charge 4 the rest of the time, and everything synch up and works just fine. So big points to Fitbit when it comes to connectivity!

One word of warning: You may see a weird graphical aberration in the upper left corner of the display from time to time. That's not a fault. It turns out that that's just a strange little "low battery" indicator.
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Dalia
5.0 out of 5 stars Enamorada de mi smart band fitbit charge 4
Reviewed in Mexico on May 24, 2021
Color: Black/BlackEdition: RegularVerified Purchase
La verdad es que me ha funcionado bastante bien, la correa es muy cómoda y literalmente hablando no me lo quito ni para dormir y la batería dura de 5 a 7 días, dependerá del uso que se le de en cada caso, pero yo en lo personal estoy muy contenta con mi smart band. Ya hasta le compré sus protectores de pantalla.
Me avisa cuando ya estuve mucho tiempo sentada y me pide dar unos pasos para lograr mi objetivo.

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Dalia
5.0 out of 5 stars Enamorada de mi smart band fitbit charge 4
Reviewed in Mexico on May 24, 2021
La verdad es que me ha funcionado bastante bien, la correa es muy cómoda y literalmente hablando no me lo quito ni para dormir y la batería dura de 5 a 7 días, dependerá del uso que se le de en cada caso, pero yo en lo personal estoy muy contenta con mi smart band. Ya hasta le compré sus protectores de pantalla.
Me avisa cuando ya estuve mucho tiempo sentada y me pide dar unos pasos para lograr mi objetivo.

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Manuel
5.0 out of 5 stars Satisfecho con la compra
Reviewed in Spain on November 16, 2020
Color: Black/BlackEdition: RegularVerified Purchase
Cumple bien con las características princiaples que indica.
Dura perfectamente 7 días su bateria, lo probe con el GPS, y duro 4'18'', aunque no lo llevaba al 100% de bateria (72%), muy util la información que daba del recorrido realizado.
Tiene un buen tamaño, se ven perfectamente los números, los avisos son utiles y se sincroniza bien con el movil (IOS).
¿Podría tener una pantalla con colores?, pues sí, pero no han dado aún ese paso.
Lo compre muy por debajo de su precio de referencia.
Me piden que valore el "sabor", aún no me ha dado por chupar el reloj, ja, ja.
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Tommy
5.0 out of 5 stars Caro, ma ottimo
Reviewed in Italy on June 13, 2020
Color: Black/BlackEdition: RegularVerified Purchase
Aggiorno la recensione dopo che Fitbit ha finalmente rilasciato l'aggiornamento con la funzione Smart Wake (sveglia nel momento di sonno leggero), quindi posso dare tranquillamente 5 stelle.
Evoluzione della linea Charge che guadagna il GPS e diverse funzionalità software, non starò a fare una recensione delle caratteristiche perché ne trovate a milioni online. Vi dirò quello che va e che non va.
E' un Fitbit, quindi è caro, ma il design è molto curato e non sfigura quando dovete uscire la sera.
Rispetto a Charge 2 e 3: la cassa è in plastica, probabilmente necessario per la ricezione GPS. Purtroppo questo significa che la sensazione è di prodotto un po' meno premium, dall'altra parte se ne apprezza la maggiore leggerezza, al polso è estremamente comodo.
E' in definitiva un prodotto ben fatto e curato sotto tutti gli aspetti. Vari miglioramenti rispetto ai predecessori sia hardware che software. Con il Pixel, nessun problema di accoppiamento o disconnessioni. Funziona perfettamente, le nuove caratteristiche rispetto alle serie precedenti lo portano quasi alla perfezione per quanto riguarda le feature di una smart band "generalista", quindi non dedicata all'allenamento sportivo agonistico, ma a un po' di fitness, ricezione notifiche ecc, per chi non vuole le dimensioni di uno smartwatch. Durata della batteria di qualche giorno, rispetta le aspettative per il tipo di prodotto.
Lo consiglio a chi vuole un tracker che funzioni bene e che sia anche un accessorio bello da indossare. Si accoppia bene con un orologio tradizionale (orologio a sinistra e tracker a destra).
Stephanie F.
5.0 out of 5 stars Guter Fitnesstracker im schlanken Design
Reviewed in Germany on May 22, 2020
Color: Black/BlackEdition: RegularVerified Purchase
Bisher hatte ich die Fitbit Alta HR, da ich so globige Smartwatches und Fitnesstracker nicht mag.
Ich mag es schlicht und unauffällig.
Ich bin der Typ „wenn ich meine Fitbit nicht anhabe, weil sie lädt, fühle ich mich nackig!“.

Die Fitbit Charge 4 ist nicht so groß wie die anderen üblichen Tracker und recht schlank.
Der Tracker und das Armband sehen in schwarz sehr hochwertig aus und das Silikonarmband lässt sich angenehm tragen. Gelegentlich schwitzt man mal darunter, das finde ich jedoch nicht schlimm.

Da ich bereits ein Fitbitkonto habe, war die Charge 4 schnell in meinem Konto hinzugefügt.

Wieso habe ich mir die Charge 4 gekauft?!
Meine Kaufanreize waren hauptsächlich das im Gerät verbaute GPS und Fitbit Pay.
Das GPS ist eine super Sache, wenn man mal sein Handy nicht dabei hat.
Fitbit Pay konnte ich leider nicht nutzen, da meine Kreditkartenbank nicht gelistet ist. Wenn meine Bank aufgenommen wird, werde ich sofort meine Karte hinterlegen und diesen Service nutzen.
Der Gedanke mit seiner Fitbit zum zahlen zu nutzen ist einfach genial!
Ich denke da an den Urlaub, wenn ich am Strand meine Runden drehe, kein Geldbeutel dabei habe und dann hinterher mein Fischbrötchen beim Imbiss mit meiner Fitbit bezahle. Toll!

Ich habe mir damals eine Fitbit gekauft, um meinen Puls zu überwachen. Der Pulssensor ist sehr genau.
Da ich Herzrhythmusstörungen habe, kann ich jederzeit den Wert meines Pulses sehen und auch in der App einsehen und ggf. mit dem Arzt besprechen.
Achtung, das ersetzt natürlich kein EKG beim Arzt! Für mich ist es jedoch eine enorme Hilfe.

Was für mich neu ist, ist die „Voraussichtliche Sauerstoffabweichung“, die ich in der App einsehen kann.
Hier wird die Sauerstoffsättigung vom Blut geschätzt. Ich weiß, dass ich ab und zu schnarche (wache sogar davon auf :-) ) und das sehe ich dann auch als Abweichung in der App.
Ansonsten schaue ich mir auch die Schlafphasen an, wie gut oder schlecht ich geschlafen habe. Im Großen und Ganzen stimmt das überein. Manchmal, wenn ich TV schaue, bin ich so ruhig, dass mein Fitbit denkt ich schlafe. :-) Finde ich jetzt aber nicht schlimm! Ein Grund mehr, mich zu bewegen. Haha.

Mit der Charge 4 gibt es auch eine Relax-Funktion. Hier kann ich eine 2 oder 5 Minuten geführte Atemübung machen. Wenn es stressig um mich ist, brauche ich das ab und zu. Bisher hatte ich das nämlich noch nie gemacht… Einfach ruhig da sitzen und atmen. :-) Das finde ich super.

Was mich ein kleines bisschen stört, ist, dass ich beim Zifferblatt zwar aus vielen Designs wählen kann, aber ich kann das Schnellmenü bzw. Display nicht mehr anpassen.
Bei meiner Alta HR konnte ich entscheiden welche Werte angezeigt werden und vor allem in welcher Reihenfolge. Z.B. ich drehe meinen Arm, da sehe ich die Uhrzeit, das Datum und den Puls.
Manchmal hüpft der aber Wert unbemerkt weiter und ich sehe dann nicht mehr den Puls wenn ich meinen Arm drehe, sondern die Schritte. Will ich wieder den Puls sehen, muss ich so lange weiter tippen, bis er wieder da ist. Da sind viele Sachen, die mich beim Schnelldurchlauf nicht interessieren. Wie z.B. Treppen oder aktive Minuten. Die kann ich im Menü oder in der App mir anzeigen lassen. Aber im Schnellmenü mag ich eigentlich nur 3 Werte: Puls, Schritte und Km. Und das kann ich leider nicht so einstellen wie ich es mag.

Positiv:
- Schlankes Design
- Angenehmes Armband
- Genauer Puls
- Verbautes GPS
- Fitbit Pay (wenn die eigene Bank gelistet ist!)
- Gutes Touchdisplay
- Relax (Atemübung)

Negativ:
- Kann das (Ziffernblatt-)Display nicht anpassen

Fazit:
Die Fitbit Charge 4 ist ein sehr guter Tracker.
Es gibt so viele Möglichkeiten die eigene Fitness und Gesundheit zu verbessern und die Charge 4 ist ein guter Begleiter!
Ich möchte sie nicht mehr missen und kann sie uneingeschränkt weiterempfehlen.
Customer image
Stephanie F.
5.0 out of 5 stars Guter Fitnesstracker im schlanken Design
Reviewed in Germany on May 22, 2020
Bisher hatte ich die Fitbit Alta HR, da ich so globige Smartwatches und Fitnesstracker nicht mag.
Ich mag es schlicht und unauffällig.
Ich bin der Typ „wenn ich meine Fitbit nicht anhabe, weil sie lädt, fühle ich mich nackig!“.

Die Fitbit Charge 4 ist nicht so groß wie die anderen üblichen Tracker und recht schlank.
Der Tracker und das Armband sehen in schwarz sehr hochwertig aus und das Silikonarmband lässt sich angenehm tragen. Gelegentlich schwitzt man mal darunter, das finde ich jedoch nicht schlimm.

Da ich bereits ein Fitbitkonto habe, war die Charge 4 schnell in meinem Konto hinzugefügt.

Wieso habe ich mir die Charge 4 gekauft?!
Meine Kaufanreize waren hauptsächlich das im Gerät verbaute GPS und Fitbit Pay.
Das GPS ist eine super Sache, wenn man mal sein Handy nicht dabei hat.
Fitbit Pay konnte ich leider nicht nutzen, da meine Kreditkartenbank nicht gelistet ist. Wenn meine Bank aufgenommen wird, werde ich sofort meine Karte hinterlegen und diesen Service nutzen.
Der Gedanke mit seiner Fitbit zum zahlen zu nutzen ist einfach genial!
Ich denke da an den Urlaub, wenn ich am Strand meine Runden drehe, kein Geldbeutel dabei habe und dann hinterher mein Fischbrötchen beim Imbiss mit meiner Fitbit bezahle. Toll!

Ich habe mir damals eine Fitbit gekauft, um meinen Puls zu überwachen. Der Pulssensor ist sehr genau.
Da ich Herzrhythmusstörungen habe, kann ich jederzeit den Wert meines Pulses sehen und auch in der App einsehen und ggf. mit dem Arzt besprechen.
Achtung, das ersetzt natürlich kein EKG beim Arzt! Für mich ist es jedoch eine enorme Hilfe.

Was für mich neu ist, ist die „Voraussichtliche Sauerstoffabweichung“, die ich in der App einsehen kann.
Hier wird die Sauerstoffsättigung vom Blut geschätzt. Ich weiß, dass ich ab und zu schnarche (wache sogar davon auf :-) ) und das sehe ich dann auch als Abweichung in der App.
Ansonsten schaue ich mir auch die Schlafphasen an, wie gut oder schlecht ich geschlafen habe. Im Großen und Ganzen stimmt das überein. Manchmal, wenn ich TV schaue, bin ich so ruhig, dass mein Fitbit denkt ich schlafe. :-) Finde ich jetzt aber nicht schlimm! Ein Grund mehr, mich zu bewegen. Haha.

Mit der Charge 4 gibt es auch eine Relax-Funktion. Hier kann ich eine 2 oder 5 Minuten geführte Atemübung machen. Wenn es stressig um mich ist, brauche ich das ab und zu. Bisher hatte ich das nämlich noch nie gemacht… Einfach ruhig da sitzen und atmen. :-) Das finde ich super.

Was mich ein kleines bisschen stört, ist, dass ich beim Zifferblatt zwar aus vielen Designs wählen kann, aber ich kann das Schnellmenü bzw. Display nicht mehr anpassen.
Bei meiner Alta HR konnte ich entscheiden welche Werte angezeigt werden und vor allem in welcher Reihenfolge. Z.B. ich drehe meinen Arm, da sehe ich die Uhrzeit, das Datum und den Puls.
Manchmal hüpft der aber Wert unbemerkt weiter und ich sehe dann nicht mehr den Puls wenn ich meinen Arm drehe, sondern die Schritte. Will ich wieder den Puls sehen, muss ich so lange weiter tippen, bis er wieder da ist. Da sind viele Sachen, die mich beim Schnelldurchlauf nicht interessieren. Wie z.B. Treppen oder aktive Minuten. Die kann ich im Menü oder in der App mir anzeigen lassen. Aber im Schnellmenü mag ich eigentlich nur 3 Werte: Puls, Schritte und Km. Und das kann ich leider nicht so einstellen wie ich es mag.

Positiv:
- Schlankes Design
- Angenehmes Armband
- Genauer Puls
- Verbautes GPS
- Fitbit Pay (wenn die eigene Bank gelistet ist!)
- Gutes Touchdisplay
- Relax (Atemübung)

Negativ:
- Kann das (Ziffernblatt-)Display nicht anpassen

Fazit:
Die Fitbit Charge 4 ist ein sehr guter Tracker.
Es gibt so viele Möglichkeiten die eigene Fitness und Gesundheit zu verbessern und die Charge 4 ist ein guter Begleiter!
Ich möchte sie nicht mehr missen und kann sie uneingeschränkt weiterempfehlen.
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