FitbitCharge 4 Activity Tracker

About

Take your goals further with a health & fitness tracker that packs built-in GPS for pace and distance, 24/7 heart rate tracking and more into a comfortable wristband

The Fitbit Charge 4 is the company's first 'flagship' fitness tracker band to offer on-board GPS, plus Spotify support. Together with Fitbit Pay, this allows you to enjoy the great outdoors without being saddled by a cumbersome phone.

After working out, syncing your device will produce a GPS-generated heatmap of your activities – a feature that will be familiar to Strava users, and shows where you exercise most frequently (whether it's running, walking, cycling swimming or any of the other 20+ supported activities).

Like its predecessor, the Fitbit Charge 4 is slim, lightweight and obtrusive. However, while its screen is bright and easy to navigate, it isn't the color display we'd hoped for. It seems we may have to wait another two years for a full-color Fitbit to arrive on our wrists.

However, the monochrome display means the Fitbit Charge 4 is able to offer impressive battery life; Fitbit says the device will last up to seven days on a single charge, making it a convenient smartwatch for everyday wear.

Another new feature for the Fitbit Charge 4 is Active Zone Minutes – a measurement that factors in your resting heart rate and age, and monitors any kinds of workout that raises your heart rate. Your goal is to spend 150 minutes in each heart rate zone (fat burn, and cardio and peak combined) during the course of a week.

It’s a concept similar to Intensity Minutes in Garmin Connect, and is based on recommendations from the World Health Organization and the NHS.

Many other apps fitness provide you with an estimate of spent moving, but these measurements are often connected to footsteps rather than heart rate and are therefore less accurate for indoor activities such as yoga, pilates and spinning.

Product Features

• Cardio fitness score
• Resting heart rate
• Sleep tracking with light, deep & REM
• Female health tracking
• Guided breathing sessions
• 24/7 Heart rate tracking, Activity tracking & Calorie burn
• Up to 7 Days battery life
• Real time pace & distance using Built in GPS
• Active zone minutes
• Floors climbed & Reminders to move
• SmartTrack automatic exercise recognition
• Swimproof up to 50m
• Work out intensity map
• Heart rate zones
• 24/7 Heart rate tracking
• 20+ Goal based exercise modes & tracking
• Tap & Pay (for FNB, Investec, Nedbank, Discovery)
• Spotify control for music
• Smartphone notifications
• Warranty: 24 Months

Product Specifications

Battery & Power

• Battery life up to 7 days, or up to 5 hours with continuous GPS use. Battery life and charge cycles vary with use, settings, and other factors; actual results will vary. We recommend charging every few days to ensure you’re always tracking.
• Battery type: Lithium-polymer
• Charge time (0-100%): Two hours
• Radio transceiver: Bluetooth

Memory

• Saves 7 days of detailed motion and heart rate data, minute by minute
• Saves daily totals for the last 30 days
• Measures heart rate data at 1-second intervals during exercise tracking and at 5-second intervals all other times

Water Resistance

• Water-resistant to 50 metres. After swimming or getting the band wet, we recommend drying the band because, as with any wearable device, it's best for your skin if the band is clean and dry. We do not recommend wearing Fitbit Charge 4 in a hot tub or sauna. Learn more.

Care

• Give your wrist a rest by taking the band off every now and then. If the band gets wet or you sweat in it, remove and completely dry the band before putting it back on. Learn more.

Materials

• This tracker includes a plastic resin case and the band includes a stainless steel buckle. The classic band is made of a flexible, durable material similar to that used in many sports watches. The woven band is made from a comfortable polyester.

Heart Rate

• Like all heart rate tracking technologies, accuracy is affected by physiology, location of device and different movements.

Environmental Requirements

• Operating temperature: -20° to 60° C
• Maximum operating altitude: 8,535 m

Syncing

• Syncs automatically and wirelessly to most popular phones using Bluetooth LE wireless technology.
• Syncing range: Up to 9 metres
• Certain features like smartphone notifications may require Android 7.0+. Check your device compatibility.
• Syncing to mobile devices requires Bluetooth LE and internet connection.
• Syncs with Mac OS X 12.2 and up, iPhone 5S and later, Android 7.0 and later.
• Music control via Bluetooth LE on Android and iOS devices.

Band Size

• Print this guide to find the right size for you. Both small and large sizes included in box.
• Small: Fits wrist 140 mm - 180 mm in circumference
• Large: Fits wrist 180 mm - 220 mm in circumference
• Dimensions: 35.8mm l x 22.7mm w x 12.5mm h

What's in the Box

• 1 x Fitbit Charge 4
• 1 x Charging cable
• Includes small and large bands