Garmin Forerunner 55 vs Garmin Forerunner 645

Design:

Garmin Forerunner 55
Design

The Garmin forerunner series has become very popular because of its amazing features. If you want an aesthetic watch with robust athletics, then we have an amazing option for you. Forerunner 55 is a lightweight GPS running watch. This watch comes with more advanced features. It helps you plan your race day strategy with pace pro features. Moreover, you can listen to music during your workouts by connecting it to Bluetooth. You can easily customize your watch with free watch faces data fields, apps, and widgets from the Connect IQ Stores. Users can comfortably wear it anywhere to keep pace with their active lifestyle. 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"

Screen Size

1.2"

Touch Screen

208 x 208px

Resolution

240 x 240px
37g

Weight

41.8g

Waterproof

Max Temperature

Min Temperature

Replaceable Band

20mm

Band Width

20mm

Screen protection

336

Battery Life

168

Charging Time

Garmin Forerunner 55
Specifications

Garmin Forerunner 55 has a lot of specifications to offer. The screen size is 1.04 inches. It can be mounted on the wrist and weighs about 1.305 ounces. The dimension of this watch is 42 x 42 x 11.6 mm. It has a high screen resolution of 208 x 208 pixels. It works for up to 20 hours in GPS mode and up to 2 weeks in smartwatch mode. Also, it’s waterproof and therefore has a resistance of 5 ATM. It has color display features as well. Moreover, it works best in visible light and trans reflect the memory in pixels. 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 55
Activity Tracking:

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. We can connect it to other devices wirelessly. You can connect it to a smartphone with the help of Bluetooth. Forerunner 55 also provides inclusive navigation when paired with these compatible devices. Whether you are on a trail or away from your working place, you will still receive texts, emails, and alerts. 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
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 55
Compatibility & Connectivity

Amazing tracking features make devices more interesting and can make our life a lot easier. Garmin Forerunner 55 has amazing tracking features. It tracks your whole lifestyle from your sleeping habits to your workout routine. If you are going on mountains, then you can use its climb pro feature along with heart rate and respiration tracking. You can take care of your sleeping habits as well. It has a multi-sports mode and can be changed according to the activity you are performing like profiles for running, cycling, track run, virtual run, pool swimming, Pilates, HIIT, breathwork, etc. Also, it has safety features like incident detection. Moreover, it comes with GPS with preinstalled maps of North America. This will guide you to your path with the help of the map. 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 55 Pros

  • 24/7 health monitoring system
  • Sleep tracking is also available
  • Autopause and auto lapse features
  • GPS, GALILEO, and GLONASS
  • Advanced workouts
  • Customizable data pages and activity profiles

Garmin Forerunner 645 Pros

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

Garmin Forerunner 55 Cones

  • No touch screen.
  • Wi-Fi is not enabled.
  • GPS workout also drains a lot of battery.
  • Not much difference compared to the previous series.

Garmin Forerunner 645 Cones

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

Design:

Garmin Forerunner 55
Design

The Garmin forerunner series has become very popular because of its amazing features. If you want an aesthetic watch with robust athletics, then we have an amazing option for you. Forerunner 55 is a lightweight GPS running watch. This watch comes with more advanced features. It helps you plan your race day strategy with pace pro features. Moreover, you can listen to music during your workouts by connecting it to Bluetooth. You can easily customize your watch with free watch faces data fields, apps, and widgets from the Connect IQ Stores. Users can comfortably wear it anywhere to keep pace with their active lifestyle. 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""

Screen Size

1.2""

Touch Screen

208 x 208px

Resolution

240 x 240px
37gg

Weight

41.8gg

Min Temperature

Replaceable Band

20mmmm

Band Width

20mmmm

Max Temperature

Waterproof

Screen protection

336h

Battery Life

168h

Garmin Forerunner 55
Specifications

Garmin Forerunner 55 has a lot of specifications to offer. The screen size is 1.04 inches. It can be mounted on the wrist and weighs about 1.305 ounces. The dimension of this watch is 42 x 42 x 11.6 mm. It has a high screen resolution of 208 x 208 pixels. It works for up to 20 hours in GPS mode and up to 2 weeks in smartwatch mode. Also, it’s waterproof and therefore has a resistance of 5 ATM. It has color display features as well. Moreover, it works best in visible light and trans reflect the memory in pixels. 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 55
Activity Tracking:

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. We can connect it to other devices wirelessly. You can connect it to a smartphone with the help of Bluetooth. Forerunner 55 also provides inclusive navigation when paired with these compatible devices. Whether you are on a trail or away from your working place, you will still receive texts, emails, and alerts. 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
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 55
Compatibility & Connectivity

Amazing tracking features make devices more interesting and can make our life a lot easier. Garmin Forerunner 55 has amazing tracking features. It tracks your whole lifestyle from your sleeping habits to your workout routine. If you are going on mountains, then you can use its climb pro feature along with heart rate and respiration tracking. You can take care of your sleeping habits as well. It has a multi-sports mode and can be changed according to the activity you are performing like profiles for running, cycling, track run, virtual run, pool swimming, Pilates, HIIT, breathwork, etc. Also, it has safety features like incident detection. Moreover, it comes with GPS with preinstalled maps of North America. This will guide you to your path with the help of the map. 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 55 Pros

  • 24/7 health monitoring system
  • Sleep tracking is also available
  • Autopause and auto lapse features
  • GPS, GALILEO, and GLONASS
  • Advanced workouts
  • Customizable data pages and activity profiles

Garmin Forerunner 645 Pros

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

Garmin Forerunner 55 Cones

  • No touch screen.
  • Wi-Fi is not enabled.
  • GPS workout also drains a lot of battery.
  • Not much difference compared to the previous series.

Garmin Forerunner 645 Cones

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