---
product_id: 231121732
title: "Charge 4 Black Advanced Fitness Tracker"
brand: "fitbit"
price: "S$245"
currency: SGD
in_stock: true
reviews_count: 12
category: "Fitbit"
url: https://www.desertcart.sg/products/231121732-charge-4-black-advanced-fitness-tracker
store_origin: SG
region: Singapore
---

# Water resistant up to 50 meters for swimproof durability Built-in GPS for precise route tracking Up to 7-day battery life for uninterrupted use Charge 4 Black Advanced Fitness Tracker

**Brand:** fitbit
**Price:** S$245
**Availability:** ✅ In Stock

## Summary

> 🚀 Elevate your wellness game—track smarter, move farther, and rest better with Fitbit Charge 4!

## Quick Answers

- **What is this?** Charge 4 Black Advanced Fitness Tracker by fitbit
- **How much does it cost?** S$245 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sg](https://www.desertcart.sg/products/231121732-charge-4-black-advanced-fitness-tracker)

## Best For

- fitbit enthusiasts

## Why This Product

- Trusted fitbit brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Precision GPS Tracking:** Navigate your fitness journey with pinpoint accuracy and map your every move.
- • **Sleep & Recovery Insights:** Optimize your rest with advanced sleep stage tracking that rivals professional studies.
- • **Active Zone Minutes Alerts:** Stay motivated with real-time buzzes when you hit your target heart rate zones—celebrate every move.
- • **All-Day Heart Rate Monitoring:** Unlock deeper health insights with 24/7 personalized heart rate zones that adapt to your body.
- • **Seamless Convenience On-the-Go:** Enjoy Fitbit Pay and a week-long battery life that keeps up with your busiest days.

## Overview

The Fitbit Charge 4 Black is a sleek, swimproof fitness tracker featuring built-in GPS, 24/7 heart rate monitoring with personalized zones, and advanced sleep tracking. With up to 7 days of battery life and Fitbit Pay, it offers comprehensive health insights and convenience for active professionals aiming to optimize their fitness and recovery.

## Description

Fitbit Charge 4 Fitness TrackerWith 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, a new exercise mode and sleep tracking. Plus, with Fitbit Pay and up to 7-day battery, you get more convenience on the go and more inspiration to reach your fitness goals.**Water resistant to 50M.​ ​Battery life varies with use and other factors;​ up to 5 hours with continuous GPS.Product Features:24/7 HEART RATE - Use 24/7 heart rate to better track calorie burn, optimize workouts and uncover health trends that inspire you to make moves on your health and fitness goals.RESTING HEART RATE - Wear Fitbit Charge 4 all day and night to record and reveal your resting heart rate, track heart rate trends over time, and follow your health and fitness progress.HEART RATE ZONES - Now heart rate zones are personalized based on your age and resting heart rate, so when you’re exercising you get a more accurate understanding of how hard your body’s working.WORKOUT INTENSITY MAP - IN APP ONLY - After outdoor exercise, check your workout intensity map in the Fitbit app to see your heart rate zones throughout your route and learn where you put in the most effort.ACTIVE ZONE MINUTES - With new Active Zone Minutes, your tracker buzzes when you reach your target heart rate zones during exercise, and celebrates when you earn extra minutes outside of exercise.

Review: 5* for the device. 0* for Google. Not for instantaneous data. - I had a charge HR fitbit from 2016 until 2022, which worked perfectly. After a few years the band (not replaceable) came off, and I re-glued it, device still worked perfectly. In 2022 I decided to upgrade to the Charge 4 due to SpO2, sleep stage, etc. monitoring. The Charge 4 has worked perfectly since then. My only complaint is the band, which is stiff and not too comfortable (I wear it 24/7/365). That was solved by use of a fabric velcro wrap band (AVOD, reviewed elsewhere). Since I got that band I absolutely love the Charge 4. I bought more as backups, but they haven't been needed. Gave one to my wife, who likewise likes it. There are some caveats about accuracy, which I'll discuss in a minute, but I find them not to be an issue as long as you're aware of them. My issue is Google, which bought Fitbit. Before that, everything worked like clockwork. Give username, password, log into Fitbit, use app, stay logged in for months, easy-peasy. But for a couple of months Google is telling me that as of 2/2/2026 I can no longer use the app unless I switch the account to Google. No more email login. OK, pain in the butt, but OK. EXCEPT: The link Google gives DOES NOT WORK. It tells me my email is "already in use for a different device" so I can't move it. [the Charge, maybe? Who knows. They give zero details, and zero ways to remediate.] They also won't let me move it to a new email. Zero stars for the Google experience is too generous. My "backup plan" is to use one of the brand new Charge 4s and try to set it up on Google when they shut off "my" three year old one. Based on the experience so far, I give that about a 5% chance of working, but if it does, I'll try to update the review. [Or if a miracle happens and I can get the current one switched to Google.] So: Charge 4, top notch except limitations below. Google: For such an advanced outfit with so many brilliant people and such great AI and search, their customer interface on this SUCKS. Accuracy limitations/caveats on Charge 4. Basically, I have found it to be extremely accurate, but there are limitations. When you first stand up and walk, it misses the first few steps...several more than the Charge missed. Not really an issue. I might miss 50 steps a day that way. If your only "walking" is moving from a couch to an electric wheelchair, you might lose a good fraction of your few steps. If you take walks, it is with 1% of GPS distance. And the step count is extremely accurate. If I manually count steps walking around the house, it's within 1 or 2% of the manual count. A+ on that. [Likewise, if I run on a treadmill, it agrees with the treadmill within 1-2%] It does NOT, in general, for me, respond to wrist motions as "steps" although you can learn to move your wrist in such a way as to make it sometimes count a "step". I find that a non-issue. If I get a dozen fake steps a day from wrist motion, it balances the steps I miss when first standing up/walking. A+ overall on distance, steps. Pu;se rate: There is an issue with pulse rate. The issue is that when it changes dramatically (say from walking to running) the pulse registered is inaccurate. If I go from walking around the house to running up and down stairs, for example, the Charge 4 will tend to read about 20 beats/min high. It will record random spikes of 50 beats too high, so the "max" pulse during exercise needs to be taken with a grain of salt (pulse rate based on comparison to pulse oximeter or ECG heart rate monitor). But, if I sit in a chair, or walk at a steady pace, the fitbit, pulse oximeter, and the ECG all agree (again, 1-2%). I sleep with a pulse oximeter every night, the Charge 4 is within one or two beats of the pulse/ox every night. It averages a fraction of a beat different. A+ for accuracy on pulse WHEN you are in a steady state condition, particularly resting. So: Don't trust the instantaneous pulse readout IF you have just changed level of exertion. Don't trust the spikes. Otherwise, pretty good. Calories: Fitbit Calories are based on pulse rate, so the errors in pulse rate tend to overstate calories burned. I keep a record of calories based on distance walked, run, basal metabolism, etc. and the Charge 4 tends to overstate daily calorie burn by 20% or so, for me. You could determine how much it is for you, and if you like, adjust the number. For a given exercise session, the numbers are roughly credible say 10-15% of independent measurement, sometimes right on the independent measurement. That's all close enough for me. YMMV. Sleep: I had a professional sleep study under medical supervision. I wore my pulse/ox and the Charge 4 at the same time. As mentioned, the Charge 4 agrees with my pulse ox for pulse rate overnight, and is pretty close (tends to be 1-2% low) on SpO2. My pulse/ox (Sleepu) and Charge 4 likewise agreed with average pulse and SpO2 from the professional study (2% ish difference). Remarkably, I thought, the SLEEP STAGE durations reported by the Charge 4 were close (to my mind) to the professional device, which has far more input data. The Charge 4 underestimated Deep Sleep by 25% or so, but showed each stage at the time the professional unit showed it. I considered that to be pretty amazing. Overall: Fabulous for a cheap device with such limited input. Will be sorry to lose it to Google's messing about.
Review: Don't by this - We purchased 2 of these Fitbits and within the warranty period the following occurred: 1. My wife's fitbit in 6 months failed. After several calls to Customer Service and sending pictures and receipts to them, they sent a new unit to her. When it arrived, that unit did not work. After going back in forth with customer support, we upgraded her unit to a 5. We were told we would have it within 3 to 5 business days. 21 business days it arrived. Each time we called customer support we got a different answer. Now comes an unimaginable circumstance. My unit failed within the warranty period. Called customer support and they said yes it is in warranty, please send pictures. I sent pictures they then asked for receipt, I sent receipt, they come back and says you bought it from an unapproved reseller. I said, I bought it from desertcart and you already took care of my wifes unit under warranty, they came back and said we are sorry you have to take it up with desertcart and the end reseller, we can't help you. I reminded them that they already replaced my wifes unit and again their response was take it up with desertcart. I have several friends that have had nothing but problems with their fitbits... I purchased someone else's watch which was 1/2 the price of fitbit. They may have been a good company at one point, but not today..Stay away.

## Features

- Measures Calories Burned And Heart Rate
- Comprehensive Monitoring
- Sleep Tracking
- Built-in GPS

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08GYSZJBV |
| Batteries | 1 Lithium Polymer batteries required. |
| Best Sellers Rank | #23,234 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #110 in Activity & Fitness Trackers |
| Customer Reviews | 3.7 3.7 out of 5 stars (1,502) |
| Date First Available | May 1, 2020 |
| Item Weight | 0.03 Kilograms |
| Item model number | FB417BKBK |
| Manufacturer | Fitbit |
| Memory Storage Capacity | 6400 MB |
| Product Dimensions | 1.65 x 4.06 x 8.86 inches |
| Standing screen display size | 1.5 Inches |

## Product Details

- **Battery Cell Composition:** Lithium Ion
- **Brand:** Fitbit
- **Connectivity Technology:** Bluetooth, NFC
- **GPS:** Built-in GPS
- **Memory Storage Capacity:** 6400 MB
- **Operating System:** Android
- **Screen Size:** 1.5 Inches
- **Shape:** Rectangular
- **Special Feature:** Heart Rate Monitor, Sleep Monitor, GPS, Calorie Tracker, Daily Workout Memory
- **Wireless Communication Standard:** Bluetooth

## Images

![Charge 4 Black Advanced Fitness Tracker - Image 1](https://m.media-amazon.com/images/I/61Bz2X5a52L.jpg)

## Questions & Answers

**Q: Does it come with a charger?**
A: It comes with a cord that you attach to your Fitbit and it has  USB plug on the other end.

**Q: How do I change the time**
A: You don’t have to. It changes automatically. Just like your phone.

**Q: Is this compatible with a Samsung S10 128gig?**
A: Yes

**Q: Does this calculate how many calories you intake from eating and drinking?**
A: No, it calculates how many calories you have burned off from your activity level.

## Customer Reviews

### ⭐⭐⭐⭐⭐ 5* for the device. 0* for Google. Not for instantaneous data.
*by S***T on January 2, 2026*

I had a charge HR fitbit from 2016 until 2022, which worked perfectly. After a few years the band (not replaceable) came off, and I re-glued it, device still worked perfectly. In 2022 I decided to upgrade to the Charge 4 due to SpO2, sleep stage, etc. monitoring. The Charge 4 has worked perfectly since then. My only complaint is the band, which is stiff and not too comfortable (I wear it 24/7/365). That was solved by use of a fabric velcro wrap band (AVOD, reviewed elsewhere). Since I got that band I absolutely love the Charge 4. I bought more as backups, but they haven't been needed. Gave one to my wife, who likewise likes it. There are some caveats about accuracy, which I'll discuss in a minute, but I find them not to be an issue as long as you're aware of them. My issue is Google, which bought Fitbit. Before that, everything worked like clockwork. Give username, password, log into Fitbit, use app, stay logged in for months, easy-peasy. But for a couple of months Google is telling me that as of 2/2/2026 I can no longer use the app unless I switch the account to Google. No more email login. OK, pain in the butt, but OK. EXCEPT: The link Google gives DOES NOT WORK. It tells me my email is "already in use for a different device" so I can't move it. [the Charge, maybe? Who knows. They give zero details, and zero ways to remediate.] They also won't let me move it to a new email. Zero stars for the Google experience is too generous. My "backup plan" is to use one of the brand new Charge 4s and try to set it up on Google when they shut off "my" three year old one. Based on the experience so far, I give that about a 5% chance of working, but if it does, I'll try to update the review. [Or if a miracle happens and I can get the current one switched to Google.] So: Charge 4, top notch except limitations below. Google: For such an advanced outfit with so many brilliant people and such great AI and search, their customer interface on this SUCKS. Accuracy limitations/caveats on Charge 4. Basically, I have found it to be extremely accurate, but there are limitations. When you first stand up and walk, it misses the first few steps...several more than the Charge missed. Not really an issue. I might miss 50 steps a day that way. If your only "walking" is moving from a couch to an electric wheelchair, you might lose a good fraction of your few steps. If you take walks, it is with 1% of GPS distance. And the step count is extremely accurate. If I manually count steps walking around the house, it's within 1 or 2% of the manual count. A+ on that. [Likewise, if I run on a treadmill, it agrees with the treadmill within 1-2%] It does NOT, in general, for me, respond to wrist motions as "steps" although you can learn to move your wrist in such a way as to make it sometimes count a "step". I find that a non-issue. If I get a dozen fake steps a day from wrist motion, it balances the steps I miss when first standing up/walking. A+ overall on distance, steps. Pu;se rate: There is an issue with pulse rate. The issue is that when it changes dramatically (say from walking to running) the pulse registered is inaccurate. If I go from walking around the house to running up and down stairs, for example, the Charge 4 will tend to read about 20 beats/min high. It will record random spikes of 50 beats too high, so the "max" pulse during exercise needs to be taken with a grain of salt (pulse rate based on comparison to pulse oximeter or ECG heart rate monitor). But, if I sit in a chair, or walk at a steady pace, the fitbit, pulse oximeter, and the ECG all agree (again, 1-2%). I sleep with a pulse oximeter every night, the Charge 4 is within one or two beats of the pulse/ox every night. It averages a fraction of a beat different. A+ for accuracy on pulse WHEN you are in a steady state condition, particularly resting. So: Don't trust the instantaneous pulse readout IF you have just changed level of exertion. Don't trust the spikes. Otherwise, pretty good. Calories: Fitbit Calories are based on pulse rate, so the errors in pulse rate tend to overstate calories burned. I keep a record of calories based on distance walked, run, basal metabolism, etc. and the Charge 4 tends to overstate daily calorie burn by 20% or so, for me. You could determine how much it is for you, and if you like, adjust the number. For a given exercise session, the numbers are roughly credible say 10-15% of independent measurement, sometimes right on the independent measurement. That's all close enough for me. YMMV. Sleep: I had a professional sleep study under medical supervision. I wore my pulse/ox and the Charge 4 at the same time. As mentioned, the Charge 4 agrees with my pulse ox for pulse rate overnight, and is pretty close (tends to be 1-2% low) on SpO2. My pulse/ox (Sleepu) and Charge 4 likewise agreed with average pulse and SpO2 from the professional study (2% ish difference). Remarkably, I thought, the SLEEP STAGE durations reported by the Charge 4 were close (to my mind) to the professional device, which has far more input data. The Charge 4 underestimated Deep Sleep by 25% or so, but showed each stage at the time the professional unit showed it. I considered that to be pretty amazing. Overall: Fabulous for a cheap device with such limited input. Will be sorry to lose it to Google's messing about.

### ⭐ Don't by this
*by D***E on June 8, 2023*

We purchased 2 of these Fitbits and within the warranty period the following occurred: 1. My wife's fitbit in 6 months failed. After several calls to Customer Service and sending pictures and receipts to them, they sent a new unit to her. When it arrived, that unit did not work. After going back in forth with customer support, we upgraded her unit to a 5. We were told we would have it within 3 to 5 business days. 21 business days it arrived. Each time we called customer support we got a different answer. Now comes an unimaginable circumstance. My unit failed within the warranty period. Called customer support and they said yes it is in warranty, please send pictures. I sent pictures they then asked for receipt, I sent receipt, they come back and says you bought it from an unapproved reseller. I said, I bought it from Amazon and you already took care of my wifes unit under warranty, they came back and said we are sorry you have to take it up with Amazon and the end reseller, we can't help you. I reminded them that they already replaced my wifes unit and again their response was take it up with Amazon. I have several friends that have had nothing but problems with their fitbits... I purchased someone else's watch which was 1/2 the price of fitbit. They may have been a good company at one point, but not today..Stay away.

### ⭐⭐⭐⭐⭐ this one worked
*by H***Y on December 28, 2025*

The version 4 of the fitbit is hard to find. I ordered one but it arrived with a dead display. But the vendor replaced it quickly. The replacement works perfectly. This was a replacement for a version 4 that had been in use for a few years before it died and I didn't want to move to a newer version.

## Frequently Bought Together

- Fitbit Charge 4 Black Advanced Fitness Tracker
- 4 Pack Stretchy Band Compatible with Fit bit Charge 4 Bands/ Charge 3 Band/ Charge 3SE Smart Watch Wristbands for Women Men, Breathable Adjustable Loop Nylon Replacement Straps Elastic Charge 3 Wristbands for Women Men
- AVOD Nylon Watch Bands Compatible with Fitbit Charge 4/Charge 3/SE, Soft Replacement Wristband Breathable Sport Strap with Band for Women Men

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*Product available on Desertcart Singapore*
*Store origin: SG*
*Last updated: 2026-02-11*