Garmin Forerunner 645 vs Garmin Vivoactive HR

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 HR
Design

Garmin Vivoactive HR is a smartwatch that has the feature of a built-in sports app that will help track the activities of the user even if the user has inaccessibility from their phone. It's water-proof and the always-on display is what makes this watch even better. The lens material is made of chemically strengthened glass. The case material is made of polymer and the strap material is of silicone which is known for its durability. Also, it's customizable, and therefore various watch face designs are available. It's water-proof and is available in a sleek and decent black color. Read More

Specifications:

1.2"

Screen Size

1.2"

Touch Screen

240 x 240px

Resolution

148 x 205px
41.8g

Weight

47.5g

Waterproof

Max Temperature

Min Temperature

Replaceable Band

20mm

Band Width

Screen protection

168

Battery Life

192

Charging Time

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 HR
Specifications

There are various specifications that the Garmin Vivoactive HR holds like the screen size of the product is 0.8" x 1.13" (20.7 x 28.6 mm). Although, there is a touchscreen available, and has a color display too. The display resolution of the screen is 205 x 148 pixels which is quite an improvement in this model. The weight of this product is around 47.6 g. Also, it’s waterproof and has water resistance up to 5 ATM. The watch band is replaceable and can be changed based on the user's needs. The battery life of the product lasts around 8 days and with GPS it will last up to 13 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 HR
Activity Tracking:

There are various tracking features that the Garmin Vivoactive HR holds like the availability of GPS. It has a route tracker available. There is a heart rate tracker available which will track a 24-hour heart rate along with the blood oxygenation level. It will track various fitness features such as the distance traveled, the steps taken in a day, and the elevation crossed in a day. There is a cadence sensor available that will track the average cadences in a day. The sleep tracker will help track the sleep. The multi-sports mode is present that will help perform various challenges and tracking activities. 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 HR
Compatibility & Connectivity

The Garmin Vivoactive HR 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 are call control options so user can answer their calls using a smartwatch using Bluetooth technology. 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 HR Pros

  • Provides smart notifications
  • Tracks everything
  • Water-resistant
  • Customizable alarms
  • Replaceable watch band
  • Light-weight

Garmin Forerunner 645 Cones

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

Garmin Vivoactive HR Cones

  • Bulky
  • Clunky design
  • Heart rate monitor isn’t reliable
  • Finicky touchscreen

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 HR
Design

Garmin Vivoactive HR is a smartwatch that has the feature of a built-in sports app that will help track the activities of the user even if the user has inaccessibility from their phone. It's water-proof and the always-on display is what makes this watch even better. The lens material is made of chemically strengthened glass. The case material is made of polymer and the strap material is of silicone which is known for its durability. Also, it's customizable, and therefore various watch face designs are available. It's water-proof and is available in a sleek and decent black color. Read More

Specifications:

1.2""

Screen Size

1.2""

Touch Screen

240 x 240px

Resolution

148 x 205px
41.8gg

Weight

47.5gg

Min Temperature

Replaceable Band

20mmmm

Band Width

mm

Max Temperature

Waterproof

Screen protection

168h

Battery Life

192h

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 HR
Specifications

There are various specifications that the Garmin Vivoactive HR holds like the screen size of the product is 0.8" x 1.13" (20.7 x 28.6 mm). Although, there is a touchscreen available, and has a color display too. The display resolution of the screen is 205 x 148 pixels which is quite an improvement in this model. The weight of this product is around 47.6 g. Also, it’s waterproof and has water resistance up to 5 ATM. The watch band is replaceable and can be changed based on the user's needs. The battery life of the product lasts around 8 days and with GPS it will last up to 13 hours. 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 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 HR
Activity Tracking:

There are various tracking features that the Garmin Vivoactive HR holds like the availability of GPS. It has a route tracker available. There is a heart rate tracker available which will track a 24-hour heart rate along with the blood oxygenation level. It will track various fitness features such as the distance traveled, the steps taken in a day, and the elevation crossed in a day. There is a cadence sensor available that will track the average cadences in a day. The sleep tracker will help track the sleep. The multi-sports mode is present that will help perform various challenges and tracking activities. 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 HR
Compatibility & Connectivity

The Garmin Vivoactive HR 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 are call control options so user can answer their calls using a smartwatch using Bluetooth technology. 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 HR Pros

  • Provides smart notifications
  • Tracks everything
  • Water-resistant
  • Customizable alarms
  • Replaceable watch band
  • Light-weight

Garmin Forerunner 645 Cones

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

Garmin Vivoactive HR Cones

  • Bulky
  • Clunky design
  • Heart rate monitor isn’t reliable
  • Finicky touchscreen