Garmin Forerunner 305 vs Garmin Forerunner 645

Design:

Garmin Forerunner 305
Design

Garmin Forerunner 305 is the one for everyone. This smartwatch is like a personal running computer that will help users achieve the ideal fitness level they want. There is a high-sensitivity GPS receiver along with a robust wireless heart rate monitor that gives amazing performance. The material of Garmin Forerunner 305 is made of plastic and the band is made of nylon which is very easy to wear and has good elasticity. These features of it indicate that it will last longer and is durable. It's available in these two pretty colors i.e. Red and Silver. 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:

Screen Size

1.2"

Touch Screen

Resolution

240 x 240px
77g

Weight

41.8g

Waterproof

Max Temperature

Min Temperature

Replaceable Band

Band Width

20mm

Screen protection

Battery Life

168

Charging Time

Garmin Forerunner 305
Specifications

The Garmin forerunner 305 has an LCD and is equipped with a screen size of 1.3" x 0.8" (3.3 x 2.0 cm). there is no touchscreen available. The display resolution is around 160 x 100 pixels. The total weight of the product is around 77g. also, it's waterproof and has a depth rating of IPX7. The height and width of the product are 68.6mm and 53.3mm. the watch band is replaceable and users can change the strap of the product as per their requirements and outfit. The battery type is rechargeable lithium-ion and can last around 10 hours and above. 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 305
Activity Tracking:

The Garmin forerunner 305 is equipped with a GPS for precise tracking. There is a route tracker available. Also, it's equipped with a heart rate monitor but doesn’t monitor the blood oxygenation level. It provides activity reports and tracks the distance, the steps taken in a day, and even the steps taken in a day. It also measures the pace of the user and counts how many calories are burned in a day. The goal-setting feature will enable the user to set their daily fitness goals. There is no sleep tracker available. There is a multi-sport mode available that will help the user perform various challenges and 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 305
Compatibility & Connectivity

The Garmin forerunner is not compatible with both Android and iOS devices. It’s compatible with Garmin express and works on a windows computer that runs windows 7 and above. Similarly, for mac users, it's compatible with it but the version restriction is OSX 10.12 and above. It doesn’t sync the data wirelessly and users will need a USB port in order to transfer their data. It supports and has the ANT+ feature. The cellular module isn't installed and therefore user can't answer their calls using the Garmin forerunner 305. No built0in camera remote control option is available for users. 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 305 Pros

  • Heart Rate Monitor
  • A nice LCD display
  • Outstanding performance
  • Depict accurate and precise location
  • Lightweight
  • Reliable device

Garmin Forerunner 645 Pros

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

Garmin Forerunner 305 Cones

  • Size is huge
  • Provide average performance in cloudy weather
  • It’s not good for outdoor activities
  • Expensive

Garmin Forerunner 645 Cones

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

Design:

Garmin Forerunner 305
Design

Garmin Forerunner 305 is the one for everyone. This smartwatch is like a personal running computer that will help users achieve the ideal fitness level they want. There is a high-sensitivity GPS receiver along with a robust wireless heart rate monitor that gives amazing performance. The material of Garmin Forerunner 305 is made of plastic and the band is made of nylon which is very easy to wear and has good elasticity. These features of it indicate that it will last longer and is durable. It's available in these two pretty colors i.e. Red and Silver. 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:

"

Screen Size

1.2""

Touch Screen

Resolution

240 x 240px
77gg

Weight

41.8gg

Min Temperature

Replaceable Band

mm

Band Width

20mmmm

Max Temperature

Waterproof

Screen protection

h

Battery Life

168h

Garmin Forerunner 305
Specifications

The Garmin forerunner 305 has an LCD and is equipped with a screen size of 1.3" x 0.8" (3.3 x 2.0 cm). there is no touchscreen available. The display resolution is around 160 x 100 pixels. The total weight of the product is around 77g. also, it's waterproof and has a depth rating of IPX7. The height and width of the product are 68.6mm and 53.3mm. the watch band is replaceable and users can change the strap of the product as per their requirements and outfit. The battery type is rechargeable lithium-ion and can last around 10 hours and above. 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 305
Activity Tracking:

The Garmin forerunner 305 is equipped with a GPS for precise tracking. There is a route tracker available. Also, it's equipped with a heart rate monitor but doesn’t monitor the blood oxygenation level. It provides activity reports and tracks the distance, the steps taken in a day, and even the steps taken in a day. It also measures the pace of the user and counts how many calories are burned in a day. The goal-setting feature will enable the user to set their daily fitness goals. There is no sleep tracker available. There is a multi-sport mode available that will help the user perform various challenges and 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 305
Compatibility & Connectivity

The Garmin forerunner is not compatible with both Android and iOS devices. It’s compatible with Garmin express and works on a windows computer that runs windows 7 and above. Similarly, for mac users, it's compatible with it but the version restriction is OSX 10.12 and above. It doesn’t sync the data wirelessly and users will need a USB port in order to transfer their data. It supports and has the ANT+ feature. The cellular module isn't installed and therefore user can't answer their calls using the Garmin forerunner 305. No built0in camera remote control option is available for users. 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 305 Pros

  • Heart Rate Monitor
  • A nice LCD display
  • Outstanding performance
  • Depict accurate and precise location
  • Lightweight
  • Reliable device

Garmin Forerunner 645 Pros

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

Garmin Forerunner 305 Cones

  • Size is huge
  • Provide average performance in cloudy weather
  • It’s not good for outdoor activities
  • Expensive

Garmin Forerunner 645 Cones

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