Garmin Fenix 3 vs Garmin Forerunner 645

Design:

Garmin Fenix 3
Design

Garmin Fenix 3 is a circular-shaped watch. The bezel is made of fiber-reinforced polymer or stainless steel. The strap is usually gray and is usually made of thermoplastic polyurethane. Glass is made of scratch-resistant material which protects it from external effects. It has an internal memory of about 32 MB. It also contains water resistance of 10 ATM. Omni directional EXO stainless antenna makes signal strength stronger and can enhance connectivity. This watch has a chroma display that works best in sunlight. We can connect it to other devices by either GPS or Bluetooth. Fenix 3 can be recharged by using charging or data cables. 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:

1.2"

Screen Size

1.2"

Touch Screen

218 x 218px

Resolution

240 x 240px
82g

Weight

41.8g

Waterproof

Max Temperature

Min Temperature

Replaceable Band

26mm

Band Width

20mm

Screen protection

336

Battery Life

168

Charging Time

Garmin Fenix 3
Specifications

Garmin Gen 2 is a smartwatch that comes with a series of specifications. A bright display with a screen size of 1.2 inches and weighs about 11.2 ounces (approximately 0.7 lbs.). The scanner has a resolution of 480 x 272. The dimension of the watch is 0.6 x 2 x 2 inches. It has a good battery life. It works for 20 hours in GPS training mode and 5 weeks in watch mode. One lithium-based battery like CR2 is used to make its performance even better. It provides a better and more accurate position even in challenging environments. It is also water resistant. Navigation is done with the help of added map themes and sensors. 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

Garmin Fenix 3
Activity Tracking:

Amazing tracking features make devices more interesting and can make our life a lot easier. If you are going on an adventurous trip, then you can use it to make your trip even better. Setting your life routine and maintaining health conditions have become a lot easier with the help of this device. It also contains fitness training features like VO2 Max and Recovery Advisor. We can keep track of our heart rate with the help of this watch during running or any physical activity. It has a multi-sports mode and can be changed according to the activity you are performing. This can also be used for other training stats like swimming, diving, etc. 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

Garmin Fenix 3
Compatibility & Connectivity

It does not matter whether you are an android or IOS user, you can connect with any of them using the Garmin app. It provides compatibility with Garmin maps as well. Comes with pre-installed maps of North America. We can connect it to other devices wirelessly. You can connect it to your smartphone with the help of Bluetooth. You can receive texts, emails, and alerts without missing any updates. It also provides inclusive navigation by using GPS. It also uploads wireless data directly to Garmin Connects online fitness community and other social media sharing through this application. 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

Garmin Fenix 3 Pros

  • 3- axis electronic compass
  • Inclusive navigation
  • GPS and GLONASS
  • Weather update
  • Chroma display
  • Equipped with sensors like Altimeter, Barometer, Calorimeter

Garmin Forerunner 645 Pros

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

Garmin Fenix 3 Cones

  • Expensive
  • No cellular module
  • No sleep tracking is available.
  • Cannot be connected to US

Garmin Forerunner 645 Cones

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

Design:

Garmin Fenix 3
Design

Garmin Fenix 3 is a circular-shaped watch. The bezel is made of fiber-reinforced polymer or stainless steel. The strap is usually gray and is usually made of thermoplastic polyurethane. Glass is made of scratch-resistant material which protects it from external effects. It has an internal memory of about 32 MB. It also contains water resistance of 10 ATM. Omni directional EXO stainless antenna makes signal strength stronger and can enhance connectivity. This watch has a chroma display that works best in sunlight. We can connect it to other devices by either GPS or Bluetooth. Fenix 3 can be recharged by using charging or data cables. 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:

1.2""

Screen Size

1.2""

Touch Screen

218 x 218px

Resolution

240 x 240px
82gg

Weight

41.8gg

Min Temperature

Replaceable Band

26mmmm

Band Width

20mmmm

Max Temperature

Waterproof

Screen protection

336h

Battery Life

168h

Garmin Fenix 3
Specifications

Garmin Gen 2 is a smartwatch that comes with a series of specifications. A bright display with a screen size of 1.2 inches and weighs about 11.2 ounces (approximately 0.7 lbs.). The scanner has a resolution of 480 x 272. The dimension of the watch is 0.6 x 2 x 2 inches. It has a good battery life. It works for 20 hours in GPS training mode and 5 weeks in watch mode. One lithium-based battery like CR2 is used to make its performance even better. It provides a better and more accurate position even in challenging environments. It is also water resistant. Navigation is done with the help of added map themes and sensors. 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

Garmin Fenix 3
Activity Tracking:

Amazing tracking features make devices more interesting and can make our life a lot easier. If you are going on an adventurous trip, then you can use it to make your trip even better. Setting your life routine and maintaining health conditions have become a lot easier with the help of this device. It also contains fitness training features like VO2 Max and Recovery Advisor. We can keep track of our heart rate with the help of this watch during running or any physical activity. It has a multi-sports mode and can be changed according to the activity you are performing. This can also be used for other training stats like swimming, diving, etc. 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

Garmin Fenix 3
Compatibility & Connectivity

It does not matter whether you are an android or IOS user, you can connect with any of them using the Garmin app. It provides compatibility with Garmin maps as well. Comes with pre-installed maps of North America. We can connect it to other devices wirelessly. You can connect it to your smartphone with the help of Bluetooth. You can receive texts, emails, and alerts without missing any updates. It also provides inclusive navigation by using GPS. It also uploads wireless data directly to Garmin Connects online fitness community and other social media sharing through this application. 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

Garmin Fenix 3 Pros

  • 3- axis electronic compass
  • Inclusive navigation
  • GPS and GLONASS
  • Weather update
  • Chroma display
  • Equipped with sensors like Altimeter, Barometer, Calorimeter

Garmin Forerunner 645 Pros

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

Garmin Fenix 3 Cones

  • Expensive
  • No cellular module
  • No sleep tracking is available.
  • Cannot be connected to US

Garmin Forerunner 645 Cones

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