Garmin Forerunner 645 vs Garmin Vivoactive 3

Design:

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

Garmin Vivoactive 3
Design

Garmin Vivoactive 3 is a smartwatch that will help users lead an active life. It helps in making the contactless payment just by using the smartwatch. There are various sports applications that will help the user achieve their ideal goals. It helps users in performing various tracking activities. The lens material is made by using corning gorilla glass 3. The case material is made of polymer which is of great quality. The strap material is made of silicone and is durable and long-lasting. It’s available in these pretty colors i.e. granite blue silicone band and rose gold hardware. Read More

Specifications:

1.2"

Screen Size

1.2"

Touch Screen

240 x 240px

Resolution

240 x 240px
41.8g

Weight

43g

Waterproof

Max Temperature

Min Temperature

Replaceable Band

20mm

Band Width

20mm

Screen protection

168

Battery Life

168

Charging Time

1h

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

Garmin Vivoactive 3
Specifications

The Garmin Vivoactive 3 has various specifications like the screen size of the product is around 1.2" (30.4mm) in diameter with a physical size of 43.1 x 43.1 x 13.6 mm. Garmin Vivoactive 3 has a touchscreen availability and a colored display available. The screen resolution of Garmin Vivoactive 3 is 240 x 240 pixels. The total weight of this product is around 39.0 g. Also, it's waterproof and has a depth rating of up to 5 ATM. The maximum operating temperature of the product is around -20 c to 60°c. The battery lasts Up to 7 days and with GPS or heart rate mode it will last Up to 5 hours. 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 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

Garmin Vivoactive 3
Activity Tracking:

The tracking features of Garmin Vivoactive 3 include the availability of GPS which shows precise tracking. There is a route tracker available that help tracks the route of the user. This series has a wrist-based heart rate monitor so it will measure blood oxygenation levels. It also detects the activities automatically and therefore tracks the distance, the elevation crossed in a day and the steps taken in a day too. The sleep tracker is also available. There are various other features like golfing, running, cycling, swimming features, and other outdoor recreational activities. The calorie and weight intake will help the user keep a track of their weight. 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 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

Garmin Vivoactive 3
Compatibility & Connectivity

The Garmin Vivoactive 3 is compatible with both modern Android and iPhone devices. It also stays compatible with the iPad and iPod touch. Users can connect it to their computers using USB ports. Similarly, for Mac, it's also compatible and will connect with Mac OS 10.4 and above. It will sync the data wirelessly using the Garmin Connect app. Also, it provides a connectivity option with the Garmin training center. There is a call control option available so users can respond to calls using a smartwatch. There is no built-in camera control function available therefore users will need their phone sidewise. Read More

Bottom Line

Garmin Forerunner 645 Pros

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

Garmin Vivoactive 3 Pros

  • Subtle design
  • Beautiful and stylish design
  • Precise GPS tracking
  • Wrist-based heart rate monitor
  • Various multi-sport activities
  • Easy-to-read display

Garmin Forerunner 645 Cones

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

Garmin Vivoactive 3 Cones

  • Smart notifications
  • IOS users can’t respond to text
  • Expensive
  • Has a plasticky feeling

Design:

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

Garmin Vivoactive 3
Design

Garmin Vivoactive 3 is a smartwatch that will help users lead an active life. It helps in making the contactless payment just by using the smartwatch. There are various sports applications that will help the user achieve their ideal goals. It helps users in performing various tracking activities. The lens material is made by using corning gorilla glass 3. The case material is made of polymer which is of great quality. The strap material is made of silicone and is durable and long-lasting. It’s available in these pretty colors i.e. granite blue silicone band and rose gold hardware. Read More

Specifications:

1.2""

Screen Size

1.2""

Touch Screen

240 x 240px

Resolution

240 x 240px
41.8gg

Weight

43gg

Min Temperature

Replaceable Band

20mmmm

Band Width

20mmmm

Max Temperature

Waterproof

Screen protection

168h

Battery Life

168h

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

Garmin Vivoactive 3
Specifications

The Garmin Vivoactive 3 has various specifications like the screen size of the product is around 1.2" (30.4mm) in diameter with a physical size of 43.1 x 43.1 x 13.6 mm. Garmin Vivoactive 3 has a touchscreen availability and a colored display available. The screen resolution of Garmin Vivoactive 3 is 240 x 240 pixels. The total weight of this product is around 39.0 g. Also, it's waterproof and has a depth rating of up to 5 ATM. The maximum operating temperature of the product is around -20 c to 60°c. The battery lasts Up to 7 days and with GPS or heart rate mode it will last Up to 5 hours. Read More

Activity Tracking:

h

Charging Time

1hh

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 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

Garmin Vivoactive 3
Activity Tracking:

The tracking features of Garmin Vivoactive 3 include the availability of GPS which shows precise tracking. There is a route tracker available that help tracks the route of the user. This series has a wrist-based heart rate monitor so it will measure blood oxygenation levels. It also detects the activities automatically and therefore tracks the distance, the elevation crossed in a day and the steps taken in a day too. The sleep tracker is also available. There are various other features like golfing, running, cycling, swimming features, and other outdoor recreational activities. The calorie and weight intake will help the user keep a track of their weight. Read More

Compatibility & Connectivity

Android Compatibilty

Mac OS Compatibility

Syncs Wirelessly

Automatic Syncing

Wi-Fi Module

Cellular Module

Call Control

Sport Activities Tracking

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

Garmin Vivoactive 3
Compatibility & Connectivity

The Garmin Vivoactive 3 is compatible with both modern Android and iPhone devices. It also stays compatible with the iPad and iPod touch. Users can connect it to their computers using USB ports. Similarly, for Mac, it's also compatible and will connect with Mac OS 10.4 and above. It will sync the data wirelessly using the Garmin Connect app. Also, it provides a connectivity option with the Garmin training center. There is a call control option available so users can respond to calls using a smartwatch. There is no built-in camera control function available therefore users will need their phone sidewise. Read More

Bottom Line

Garmin Forerunner 645 Pros

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

Garmin Vivoactive 3 Pros

  • Subtle design
  • Beautiful and stylish design
  • Precise GPS tracking
  • Wrist-based heart rate monitor
  • Various multi-sport activities
  • Easy-to-read display

Garmin Forerunner 645 Cones

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

Garmin Vivoactive 3 Cones

  • Smart notifications
  • IOS users can’t respond to text
  • Expensive
  • Has a plasticky feeling