Fitbit Charge 3 vs Garmin Forerunner 645

Design:

Fitbit Charge 3
Design

Fitbit charge 3 is here to gear you up and follow your fitness routine. The charge series was loved very much by the users and therefore the launch of charge 3 was done with far more features. This charge 3 fitness tracker has various exciting features like choosing from 15+ exercises mode and enhanced fitness features. The material used to make this charge 3 is corduroys. The color it is available in are i.e. Black / Graphite, Blue Gray / Rose Gold, Berry Sport / Rose Gold, Frost White Sport / Graphite, and Lavender Woven / Rose Gold. 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:

Screen Size

1.2"

Touch Screen

Resolution

240 x 240px
29

Weight

41.8g

Waterproof

45

Max Temperature

-20

Min Temperature

Replaceable Band

Band Width

20mm

Screen protection

168

Battery Life

168
2

Charging Time

Fitbit Charge 3
Specifications

Charge 3 has a variety of specifications. The Charge 3 is equipped with an OLED touchscreen. The screen size is of 3 inches and the device dimensions are 35.8mm x 22.7mm x 11.8mm. The total weight of this product is less than 30 g. It’s water resistant and therefore can resist the water depth up to 50m. The operating temperature of charge range from -10° to 45°C. The watch band is replaceable and therefore can be paired up with outfits. Has screen protection of corning Gorilla Glass 3. Charge 3 battery time is great as it will last about 7 days and take only 2 hours to fully charge. 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 3
Activity Tracking:

Charge 3 has various tracking features, although doesn't have a built-in GPS but a connected GPS is available. It will track your route. Equipped with a heart rate tracker, this charge 3 will track heart activities very well. It will monitor the blood oxygenation level and therefore will automatically detect all the activities. Activities like the distance tracked in a day, the steps taken, and even the elevation crossed gets calculated. Also, charge 3 has a great sleep tracker installed and has 15+ exercise modes available. One will only need to set a goal and can get real-time stats during their workouts. 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 3
Compatibility & Connectivity

Charge 3 is compatible with both Android and iOS devices. For Android users, it should be OS 9 or higher. For IOS devices, it should be iOS 14 and above. It has the feature of syncing data wirelessly and has a synchronization range of up to 6 meters and above. Bluetooth 4.0 radio transceiver is here from increased connectivity. With Charge 3, one can get the live notification for calls, texts, and emails. It also provides alerts for any events, calendar notifications, and app updates using the Fitbit app. 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 3 Pros

  • New and stylish design
  • An OLED display screen
  • Water-resistant
  • Improved battery life
  • Charge your device
  • Music can be played with strong bass

Garmin Forerunner 645 Pros

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

Fitbit Charge 3 Cones

Cons:

  • No in-built GPS
  • Fewer music controls
  • Exposed woofers
  • Can even distort sometimes at increased volume

Garmin Forerunner 645 Cones

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

Design:

Fitbit Charge 3
Design

Fitbit charge 3 is here to gear you up and follow your fitness routine. The charge series was loved very much by the users and therefore the launch of charge 3 was done with far more features. This charge 3 fitness tracker has various exciting features like choosing from 15+ exercises mode and enhanced fitness features. The material used to make this charge 3 is corduroys. The color it is available in are i.e. Black / Graphite, Blue Gray / Rose Gold, Berry Sport / Rose Gold, Frost White Sport / Graphite, and Lavender Woven / Rose Gold. 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:

"

Screen Size

1.2""

Touch Screen

Resolution

240 x 240px
29g

Weight

41.8gg
-20℃

Min Temperature

Replaceable Band

mm

Band Width

20mmmm
45℃

Max Temperature

Waterproof

Screen protection

168h

Battery Life

168h

Fitbit Charge 3
Specifications

Charge 3 has a variety of specifications. The Charge 3 is equipped with an OLED touchscreen. The screen size is of 3 inches and the device dimensions are 35.8mm x 22.7mm x 11.8mm. The total weight of this product is less than 30 g. It’s water resistant and therefore can resist the water depth up to 50m. The operating temperature of charge range from -10° to 45°C. The watch band is replaceable and therefore can be paired up with outfits. Has screen protection of corning Gorilla Glass 3. Charge 3 battery time is great as it will last about 7 days and take only 2 hours to fully charge. 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:

2h

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 3
Activity Tracking:

Charge 3 has various tracking features, although doesn't have a built-in GPS but a connected GPS is available. It will track your route. Equipped with a heart rate tracker, this charge 3 will track heart activities very well. It will monitor the blood oxygenation level and therefore will automatically detect all the activities. Activities like the distance tracked in a day, the steps taken, and even the elevation crossed gets calculated. Also, charge 3 has a great sleep tracker installed and has 15+ exercise modes available. One will only need to set a goal and can get real-time stats during their workouts. 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 3
Compatibility & Connectivity

Charge 3 is compatible with both Android and iOS devices. For Android users, it should be OS 9 or higher. For IOS devices, it should be iOS 14 and above. It has the feature of syncing data wirelessly and has a synchronization range of up to 6 meters and above. Bluetooth 4.0 radio transceiver is here from increased connectivity. With Charge 3, one can get the live notification for calls, texts, and emails. It also provides alerts for any events, calendar notifications, and app updates using the Fitbit app. 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 3 Pros

  • New and stylish design
  • An OLED display screen
  • Water-resistant
  • Improved battery life
  • Charge your device
  • Music can be played with strong bass

Garmin Forerunner 645 Pros

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

Fitbit Charge 3 Cones

Cons:

  • No in-built GPS
  • Fewer music controls
  • Exposed woofers
  • Can even distort sometimes at increased volume

Garmin Forerunner 645 Cones

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