Fitbit Flex vs Fitbit Charge HR

Fitbit Flex

Fitbit Charge HR

Fitbit Flex is a fitness wristband for active people. Through its many sensors, it analyses your daily activity and notifies you of the achievement of its objectives. Thanks to the numerous sensors, applications and compatibility with multiple devices it is one of the most versatile trackers in price to $90 Read More
Fitbit HR Charge is a wristband for active people who care about their health and also serves as a smart watch. It analyzes your hourly activity and informs you about the achievement of its objectives. Thanks to the sensors in the sensor HR, numerous applications, and compatibility with multiple devices. Fitbit HR Charge is one of the most versatile machines in price of $150. Read More

1. Specifications

Fitbit Flex
VS
Fitbit Charge HR
Wristband
Type
Wristband
Black
Slate
Violet
Lime
Pink
Navy
Tangerine
Teal
Red
Blue
Colours
Black
Plum
Blue
Tangerine
Small 5.5” - 6.5” Large 5.5” - 7.9”
Wristband Size
Small 5.4” - 6.2” Large 6.2” - 7.6” Extra Large 7.6” - 8.7”
wristband is made of flexible, durable elastomer material & surgical-grade stainless steel clasp
Materials
wristband is made of flexible, durable elastomer material & surgical-grade stainless steel clasp
5 white indicator lights
Display
OLED
up to 5 days
Battery life:
up to 5 days
Lithium-polymer
Battery type:
Lithium-polymer
One to two hours
Charge time:
1-2 hours
-4° to 113°F
Operating temperature:
-4° to 113°F
30,000 feet
Maximum operating altitude:
30,000 feet
It is sweat, rain and splash proof. However, the device is not swim proof.
Water Resistance
It is sweat, rain and splash proof. However, the device is not swim proof.
Price

Fitbit Flex

Fitbit Charge HR

Fitbit Flex is equipped with five white LEDs light indicator that notifies us regarding the daily progress and the amount you missed to achieve the objective. (See LEDs light up as you progress toward your daily goal). Fitbit Flex is available in 10 colors. Applied rechargeable battery allows for five days of work which is standard in this class and its charging time is one to two hours,. Unfortunately, despite the basic water resistance, the device will not be able to be used while swimming. Read Full Specs
Fitbit HR Charge comes with a clear monochrome OLED display where we can, in addition to showing time and typical fitness function, read the notifications of our smartphone. There are only four colors in which it comes. Applied rechargeable battery allows for five days of work. Unfortunately, despite the basic water resistance, the device is not wearable while swimming. Read Full Specs

2. Features

2a. Tracking Features

Fitbit Flex
VS
Fitbit Charge HR
yes
Activity & Inactivity
yes
yes
Calorie Intake
yes
yes
Calories Burned
yes
yes
Distance
yes
no
Elevation/Stairs
yes
yes
Steps
yes
yes
Goal Setting
yes
no
Heart Rate
yes
yes
Sleep Quality
yes
yes
Sleep Time
yes
no
GPS tracking
no

Fitbit Flex

Fitbit Charge HR

Fitbit Flex is equipped with typical sensors for counting steps, distance travelled, calories burned, and track daily activity. This device allows you to set your own goals and achievements and shows the status of their implementation. Fitbit Flex measures the quality of your sleep and has a mild vibrating alarm that wakes you without waking your partner.
In addition to the standard sensors of counting steps, distance travelled, calories burned, tracking daily activity Fitbit Charge HR is equipped with a sensor that analyses the heartrate so that you will gain useful data about the activities of major effort and endurance of your body. Thanks to different settings and applications, the device can use relevant data collected for analysis. The system of setting targets and achievements I will not mention because it is the basis for this type of equipment for active people. Fitbit HR Charge allows you to analyze the quality of sleep required. It also has a mild vibrating alarm that will wake you in a natural way.

2b. Other Features

Fitbit Flex
VS
Fitbit Charge HR
no
Clock
yes
yes
Alarm
yes
yes
Barcode Scanner
yes
yes
Online Portal
yes
yes
Reminders
yes
no
Music control
no
no
Notifications
no
no
Call notifications
yes
no
Extra non standard
no

Fitbit Flex

Fitbit Charge HR

Thanks to the barcode scanner and extensive food database, the device quickly enters data that will help calculate calories consumed.
Fitbit HR Charge also functions as a watch. Thanks to the barcode scanner and extensive food database, the device quickly enters data that calculates calories consumed.

3. Synchronization & Compatibility

Fitbit Flex
VS
Fitbit Charge HR
iPhone 4S and later
iPad 3 and later
iOS Compatibility
iPhone 4S and later
iPad 3 and later
yes
Android Compatibility
yes
yes
Windows Phone Compatibility
yes
Mac OS X 10.6 and up
Mac OS X Compatibility
Mac OS X 10.6 and up
Windows Vista and later
Windows Compatibility
Windows Vista and later
Endomondo
IFITT
Lose It!
MapMyFitness
My Fitness Pal
Spark People
Compatible Applications
Endomondo
IFITT
Lose It!
MapMyFitness
My Fitness Pal
Spark People

Fitbit Flex

Fitbit Charge HR

You can view progress in your training on your computer or smartphone. Fitbit Flex is compatible with iOS, Windows Phone, Mac OS X, Windows, and Android. Through numerous applications, you can share your results with friends, which certainly will further motivate you to continue the effort. Available trap allows you to keep a detailed record of your activity, of meals, quality of sleep, and many others.
You can watch the progress of your training on your computer or smartphone. Charge HR is compatible with iOS, Windows Phone, Mac OS X, Windows, and Android. Through numerous applications, you can share your results with friends, which certainly will further motivate you to continue the effort. Available trap will allow you to maintain a detailed record of your activity, of meals, quality of sleep and many others. Additionally, in collaboration with a compatible smart weight Fitbit Aria Wi-Fi Scale will have at its disposal a full picture of the state of your body and achieved designated purposes.

4. The Bottom Line

Fitbit Flex
VS
Fitbit Charge HR
3.8 out of 5 stars (217 Reviews)
Read Customer Reviews
Customer Reviews
3.6 out of 5 stars (37297 Reviews)
Read Customer Reviews
• Price
• Design
• Good support for users on the part of Fitbit
• Compatible with multiple systems and devices
Pros
• HR Monitor
• Design
• Good support for users on the part of Fitbit
• Compatible with multiple systems and devices
• Inability to swim with the device
• Short battery life
• No display of information
• Lacks a watch
Cons
• Too small display
• Inability to swim with the device
• No belt replacement. • Short battery life
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