Fitbit Charge 4 vs Garmin Forerunner 645

Design:

Fitbit Charge 4
Design

For those who thought Fitbit charge 4 was the same as its predecessor, but they are very wrong about this. This new Fitbit charge 4 although looks identical but has the addition of exciting new features. These features are the inclusion of a built–in GPS, which will make this watch just like those running watches that have the whole tracking data stored. Similarly, it has Spotify support and even the special edition Fitbit pay app. Basically what this Fitbit charge 4 does is it has removed the need of carrying your phone to walk or while running. With some pretty colors i.e. black, granite and rosewood it will look sleek with your outfit. Read More

Garmin Forerunner 645
Design

Forerunner 645 is the smartwatch that lets the user run and has a track without feeling the need for their phone on their side. By using this, watch, one will easily run without missing out on any smart features. This watch has all the modern features like responding to your emails, and message and therefore provide all important updates. The lens material of the product is made of corning gorilla glass. Similarly, the strap material is made of silicone and the bezel material is made of highly durable stainless steel. The forerunner 645 is available in these colors i.e. black, cerise color, and sandstone. Read More

Specifications:

1

Screen Size

1.2"

Touch Screen

Resolution

240 x 240px
30

Weight

41.8g

Waterproof

40

Max Temperature

-10

Min Temperature

Replaceable Band

Band Width

20mm

Screen protection

168

Battery Life

168

Charging Time

Fitbit Charge 4
Specifications

Fitbit charge 4 is equipped with a screen size of 35.8mm x 22.7mm x 12.5mm with the availability of a touch screen. The resolution of charge 4 is 100 x 160 backlit greyscale with an OLED touchscreen display. The weight of charge 4 is only 24g which makes it lightweight and easy to wear. Also, it’s water-resistant and anti-splash with a depth rating of up to 50m. This way there won’t be any worry about getting the watch wet. The watch band is also replaceable so it can be used based on the outfit of the day. The charge timing is two hours and the battery lasts up to 7 days and even longer. Read Full Specs

Garmin Forerunner 645
Specifications

The forerunner 645 has a screen size of 1.2" (30.4 mm) diameter. There is no touchscreen available. The screen resolution of the product is 240 x 240 pixels. The total weight of forerunner 645 is around 41.8g. Also, it’s waterproof and has a depth rating of up to 5 ATM. The maximum operating temperature range is from -20º to 60ºC (from -4º to 140ºF). The watch band is replaceable and therefore one can change it based on their need. Equipped with a gorilla glass version, the battery life last up to 7 days. And with GPS mode it will last up to 14 days. Read Full Specs

Activity Tracking:

GPS Tracking

Route Tracking

Heart Rate Monitoring

Blood Oxygenation

Activity Detection

Distance Tracking

Step Tracking

Elevation Tracking

Bike Ccadence Monitoring

Sleep Tracking

Calories Intake Tracking

Calories Burned Tracking

Weight Tracking

Water Intake Tracking

Body Temperature

Sport Activities Tracking

Fitbit Charge 4
Activity Tracking:

Fitbit Charge 4 is equipped with various tracking features. The built-in GPS is one of the main features of this Fitbit which will help track the live location of the user and will monitor the tracking activities. It has a route tracker and a heart rate monitor (SPO2 monitoring). Not only it will manage stress but will also take into account health metrics. The 20 goal-based exercises will help the user achieve the daily goal of exercise. The food intake and water intake will help keep account of daily healthy eating habits. Also, with NFC, the altimeter will keep the track of elevation crossed every day. Read More

Garmin Forerunner 645
Activity Tracking:

There are various tracking features that the forerunner 645 adheres like the availability of GPS which will track the precise location of the user. Similarly, it is also equipped with a route tracker. There is a heart rate monitor available that will monitor the blood oxygenation levels. It also detects all the activities automatically like the distance traveled, the steps taken in a day, and an elevation crossed. The cadence sensor will calculate the average cadences in a day. The sleep tracker is also present. The weight tracking and calories burnt are also calculated. Lastly, with multi-sports mode available it will let the user perform various challenges. Read More

Compatibility & Connectivity

Android Compatibilty

IOS Compatibilty

Mac OS Compatibility

Syncs Wirelessly

Automatic Syncing

Wi-Fi Module

Cellular Module

Call Control

Sport Activities Tracking

Camera Remote Control

Fitbit Charge 4
Compatibility & Connectivity

CHARGE 4 is compatible with all modern android and iOS devices. It will sync automatically and will help in syncing data wirelessly to computers and over leading iOS, Android, and even windows. The Bluetooth le wireless technology is an additional compatibility feature. IPhone users, they need to have an iPhone 5S and later, iPad 5 gen. and later. For Android users, it should be android OS 7.0 and later. It provides a lot of connectivity options with Bluetooth, NFC, a speaker, and even a mic. The option of call control so users can manage their inbound and outbound calls efficiently. Read More

Garmin Forerunner 645
Compatibility & Connectivity

Garmin Forerunner 645 is found compatible with both Android and iOS users. It provides compatibility with Garmin maps as well. We can connect it to other devices wirelessly using Bluetooth technology. Moreover, it is also found compatible with Windows or Mac. It also provides inclusive navigation when paired with these compatible devices. It also supports the ANT+ protocol for better connectivity by using low energy. It also uploads wireless data directly to Garmin Connects online fitness community and other social media sharing through this application. This also helps you to see the route you have traveled, and you can view the distance covered and activities summary as well. Read More

Bottom Line

Fitbit Charge 4 Pros

• The spo2 monitoring is an amazing update
• Lightweight and easy to wear
• A large number of users
• Long-lasting battery life
• Great sleep tracking
• Sensors provide accurate information

Garmin Forerunner 645 Pros

  • Lightweight
  • Easy to read
  • Comfortable to carry all-day
  • Physical buttons present
  • Great battery life
  • Advanced running metrics

Fitbit Charge 4 Cones

• There is no on-board music storage
• Non-compatibility with apple health and google fit
• Less smart functionality
• Music control work with Spotify’s premium

Garmin Forerunner 645 Cones

  • No touchscreen
  • Glitchy Bluetooth connection
  • The music app is limited
  • Expensive

Design:

Fitbit Charge 4
Design

For those who thought Fitbit charge 4 was the same as its predecessor, but they are very wrong about this. This new Fitbit charge 4 although looks identical but has the addition of exciting new features. These features are the inclusion of a built–in GPS, which will make this watch just like those running watches that have the whole tracking data stored. Similarly, it has Spotify support and even the special edition Fitbit pay app. Basically what this Fitbit charge 4 does is it has removed the need of carrying your phone to walk or while running. With some pretty colors i.e. black, granite and rosewood it will look sleek with your outfit. Read More

Garmin Forerunner 645
Design

Forerunner 645 is the smartwatch that lets the user run and has a track without feeling the need for their phone on their side. By using this, watch, one will easily run without missing out on any smart features. This watch has all the modern features like responding to your emails, and message and therefore provide all important updates. The lens material of the product is made of corning gorilla glass. Similarly, the strap material is made of silicone and the bezel material is made of highly durable stainless steel. The forerunner 645 is available in these colors i.e. black, cerise color, and sandstone. Read More

Specifications:

1"

Screen Size

1.2""

Touch Screen

Resolution

240 x 240px
30g

Weight

41.8gg
-10℃

Min Temperature

Replaceable Band

mm

Band Width

20mmmm
40℃

Max Temperature

Waterproof

Screen protection

168h

Battery Life

168h

Fitbit Charge 4
Specifications

Fitbit charge 4 is equipped with a screen size of 35.8mm x 22.7mm x 12.5mm with the availability of a touch screen. The resolution of charge 4 is 100 x 160 backlit greyscale with an OLED touchscreen display. The weight of charge 4 is only 24g which makes it lightweight and easy to wear. Also, it’s water-resistant and anti-splash with a depth rating of up to 50m. This way there won’t be any worry about getting the watch wet. The watch band is also replaceable so it can be used based on the outfit of the day. The charge timing is two hours and the battery lasts up to 7 days and even longer. Read More

Garmin Forerunner 645
Specifications

The forerunner 645 has a screen size of 1.2" (30.4 mm) diameter. There is no touchscreen available. The screen resolution of the product is 240 x 240 pixels. The total weight of forerunner 645 is around 41.8g. Also, it’s waterproof and has a depth rating of up to 5 ATM. The maximum operating temperature range is from -20º to 60ºC (from -4º to 140ºF). The watch band is replaceable and therefore one can change it based on their need. Equipped with a gorilla glass version, the battery life last up to 7 days. And with GPS mode it will last up to 14 days. Read More

Activity Tracking:

h

Charging Time

h

GPS Tracking

Route Tracking

Heart Rate Monitoring

Blood Oxygenation

Activity Detection

Distance Tracking

Step Tracking

Elevation Tracking

Bike Ccadence Monitoring

Sleep Tracking

Calories Intake Tracking

Calories Burned Tracking

Weight Tracking

Water Intake Tracking

Body Temperature

Sport Activities Tracking

Fitbit Charge 4
Activity Tracking:

Fitbit Charge 4 is equipped with various tracking features. The built-in GPS is one of the main features of this Fitbit which will help track the live location of the user and will monitor the tracking activities. It has a route tracker and a heart rate monitor (SPO2 monitoring). Not only it will manage stress but will also take into account health metrics. The 20 goal-based exercises will help the user achieve the daily goal of exercise. The food intake and water intake will help keep account of daily healthy eating habits. Also, with NFC, the altimeter will keep the track of elevation crossed every day. Read More

Garmin Forerunner 645
Activity Tracking:

There are various tracking features that the forerunner 645 adheres like the availability of GPS which will track the precise location of the user. Similarly, it is also equipped with a route tracker. There is a heart rate monitor available that will monitor the blood oxygenation levels. It also detects all the activities automatically like the distance traveled, the steps taken in a day, and an elevation crossed. The cadence sensor will calculate the average cadences in a day. The sleep tracker is also present. The weight tracking and calories burnt are also calculated. Lastly, with multi-sports mode available it will let the user perform various challenges. Read More

Compatibility & Connectivity

Android Compatibilty

Mac OS Compatibility

Syncs Wirelessly

Automatic Syncing

Wi-Fi Module

Cellular Module

Call Control

Sport Activities Tracking

Fitbit Charge 4
Compatibility & Connectivity

CHARGE 4 is compatible with all modern android and iOS devices. It will sync automatically and will help in syncing data wirelessly to computers and over leading iOS, Android, and even windows. The Bluetooth le wireless technology is an additional compatibility feature. IPhone users, they need to have an iPhone 5S and later, iPad 5 gen. and later. For Android users, it should be android OS 7.0 and later. It provides a lot of connectivity options with Bluetooth, NFC, a speaker, and even a mic. The option of call control so users can manage their inbound and outbound calls efficiently. Read More

Garmin Forerunner 645
Compatibility & Connectivity

Garmin Forerunner 645 is found compatible with both Android and iOS users. It provides compatibility with Garmin maps as well. We can connect it to other devices wirelessly using Bluetooth technology. Moreover, it is also found compatible with Windows or Mac. It also provides inclusive navigation when paired with these compatible devices. It also supports the ANT+ protocol for better connectivity by using low energy. It also uploads wireless data directly to Garmin Connects online fitness community and other social media sharing through this application. This also helps you to see the route you have traveled, and you can view the distance covered and activities summary as well. Read More

Bottom Line

Fitbit Charge 4 Pros

• The spo2 monitoring is an amazing update
• Lightweight and easy to wear
• A large number of users
• Long-lasting battery life
• Great sleep tracking
• Sensors provide accurate information

Garmin Forerunner 645 Pros

  • Lightweight
  • Easy to read
  • Comfortable to carry all-day
  • Physical buttons present
  • Great battery life
  • Advanced running metrics

Fitbit Charge 4 Cones

• There is no on-board music storage
• Non-compatibility with apple health and google fit
• Less smart functionality
• Music control work with Spotify’s premium

Garmin Forerunner 645 Cones

  • No touchscreen
  • Glitchy Bluetooth connection
  • The music app is limited
  • Expensive