​Garmin Forerunner 45 Plus vs Garmin Forerunner 645

Design:

​Garmin Forerunner 45 Plus
Design

Forerunner 45 is the ultimate smartwatch that everyone who has a good sense of fashion will want in their watch. It’s because the forerunner 45 has a sleek and modern style and users will be able to pair it with their outfits quite easily. It can be worn 24/7 because it is incredibly lightweight. Equipped with several features the lens material is made of chemically strengthened glass and the strap material is made of silicone which is durable and long-lasting. Features button-based navigation and are available in these pretty colors i.e. black and lava red. 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:

1.04"

Screen Size

1.2"

Touch Screen

208 x 208px

Resolution

240 x 240px
36g

Weight

41.8g

Waterproof

60°C

Max Temperature

-20°C

Min Temperature

Replaceable Band

Band Width

20mm

Screen protection

168

Battery Life

168

Charging Time

​Garmin Forerunner 45 Plus
Specifications

The Garmin forerunner is equipped with a screen size of 1.04”. there is no touchscreen available and it's equipped with a button-based navigation system. The resolution of the screen is around 208 x 208 pixels. Also, it’s waterproof and it can resist the water depth up to 5ATM. The maximum operating temperature range is from -20º to 60ºC (from -4º to 140ºF). The watch band is replaceable and easily removable. One can remove the watch band and screw on the new band. The battery life of the product is up to seven days and with GPS it lasts up to 13 hours. 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 Forerunner 45 Plus
Activity Tracking:

The forerunner 45 has various tracking features like the availability of GPS which makes the tracking precise. There is a route tracker available which tracks the route. Similarly, there is a wrist-based heart rate monitor that will keep track of a user’s heart rate and will monitor the blood oxygenation levels. It also detects the activities automatically like the distance covered, the steps taken in a day, and the elevation crossed in a day. There is a cadence sensor available. The sleep tracker will track the sleep of the user. There is a multi-sports mode available which will help the user perform various activities. 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 Forerunner 45 Plus
Compatibility & Connectivity

Garmin Forerunner 45 has compatibility with both android and iOS devices. There is the availability of Wi-Fi which will sync the data automatically. The Bluetooth smart technology will help connect various android and iOS devices. The ANT+ technology will help in wireless transfer. There is the availability of the Garmin app as well. There is an availability of call control that will alert the user in case of any text, call or notification, etc. It will show the incoming calls and will also display the name of the person calling and will show the number as well. Provides weather forecast and notifications for calendar reminders too along with an alarm clock. 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 Forerunner 45 Plus Pros

  • Physical buttons present
  • Wrist-based heart rate monitor
  • Amazing battery life
  • Built-in GPS
  • Training plans
  • Tracking metrics

Garmin Forerunner 645 Pros

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

​Garmin Forerunner 45 Plus Cones

  • No music
  • No swimming mode
  • Five buttons don’t suit everyone
  • Sleep tracking is a bit glitchy.

Garmin Forerunner 645 Cones

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

Design:

​Garmin Forerunner 45 Plus
Design

Forerunner 45 is the ultimate smartwatch that everyone who has a good sense of fashion will want in their watch. It’s because the forerunner 45 has a sleek and modern style and users will be able to pair it with their outfits quite easily. It can be worn 24/7 because it is incredibly lightweight. Equipped with several features the lens material is made of chemically strengthened glass and the strap material is made of silicone which is durable and long-lasting. Features button-based navigation and are available in these pretty colors i.e. black and lava red. 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:

1.04""

Screen Size

1.2""

Touch Screen

208 x 208px

Resolution

240 x 240px
36gg

Weight

41.8gg
-20°C℃

Min Temperature

Replaceable Band

mm

Band Width

20mmmm
60°C℃

Max Temperature

Waterproof

Screen protection

168h

Battery Life

168h

​Garmin Forerunner 45 Plus
Specifications

The Garmin forerunner is equipped with a screen size of 1.04”. there is no touchscreen available and it's equipped with a button-based navigation system. The resolution of the screen is around 208 x 208 pixels. Also, it’s waterproof and it can resist the water depth up to 5ATM. The maximum operating temperature range is from -20º to 60ºC (from -4º to 140ºF). The watch band is replaceable and easily removable. One can remove the watch band and screw on the new band. The battery life of the product is up to seven days and with GPS it lasts up to 13 hours. 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 Forerunner 45 Plus
Activity Tracking:

The forerunner 45 has various tracking features like the availability of GPS which makes the tracking precise. There is a route tracker available which tracks the route. Similarly, there is a wrist-based heart rate monitor that will keep track of a user’s heart rate and will monitor the blood oxygenation levels. It also detects the activities automatically like the distance covered, the steps taken in a day, and the elevation crossed in a day. There is a cadence sensor available. The sleep tracker will track the sleep of the user. There is a multi-sports mode available which will help the user perform various activities. 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 Forerunner 45 Plus
Compatibility & Connectivity

Garmin Forerunner 45 has compatibility with both android and iOS devices. There is the availability of Wi-Fi which will sync the data automatically. The Bluetooth smart technology will help connect various android and iOS devices. The ANT+ technology will help in wireless transfer. There is the availability of the Garmin app as well. There is an availability of call control that will alert the user in case of any text, call or notification, etc. It will show the incoming calls and will also display the name of the person calling and will show the number as well. Provides weather forecast and notifications for calendar reminders too along with an alarm clock. 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 Forerunner 45 Plus Pros

  • Physical buttons present
  • Wrist-based heart rate monitor
  • Amazing battery life
  • Built-in GPS
  • Training plans
  • Tracking metrics

Garmin Forerunner 645 Pros

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

​Garmin Forerunner 45 Plus Cones

  • No music
  • No swimming mode
  • Five buttons don’t suit everyone
  • Sleep tracking is a bit glitchy.

Garmin Forerunner 645 Cones

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