Garmin Forerunner 25 vs Garmin Forerunner 645

Design:

Garmin Forerunner 25
Design

For users searching for extraordinary running and affordable tracking features, Garmin Forerunner 25 watch is a great option for them. Garmin Forerunner 25 is a GPS training watch with a large display. The band used is made of silicon and is available in different colors. The lens is made of acrylic material. It has amazing features that help users track their daily routines. This watch can track your distance, pace, calories, number of steps, goals, etc. It motivates users and reminds them when they think they can't run more. You can also stay connected to your runs even with call and text alerts when paired with a smartphone. 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:

0.91"

Screen Size

1.2"

Touch Screen

128 x 128px

Resolution

240 x 240px
39g

Weight

41.8g

Waterproof

60°C

Max Temperature

15°C

Min Temperature

Replaceable Band

Band Width

20mm

Screen protection

1680

Battery Life

168

Charging Time

Garmin Forerunner 25
Specifications

Garmin Forerunner 25 has several specifications. The screen size is 1.5 inches and weighs about 1.44 ounces. The product dimensions are 0.55 x 1.58 x 1.85 inches. The display has a resolution of 128 x 128 pixels. The battery life of this product in smartwatch mode is up to 10 hours. It has wireless display features. It comes with advanced features like auto lapse, auto pause, auto lap, etc. It's waterproof and has a resistance of 5 ATM. It also contains customizable data pages. Moreover, it works best in visible light and trans reflect the memory in pixels. One lithium-metal battery is used to make its performance even better. 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 25
Activity Tracking:

Tracking features define whether a certain watch or device is to be used for a certain activity or not. Garmin Forerunner 25 comes with a lot of tracking features. It can detect all the activities automatically as the steps count in a day, calories burned, distance covered, etc. It has a built-in GPS which will help precisely record the pace speed and distance traveled. It can work as a watch and activity tracker at the same time. Calories and heart rate can be determined. Moreover, the inactivity indicator makes it even more interesting. It motivates users to move when they have been sitting too long by using a vibration alert. 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 25
Compatibility & Connectivity

Forerunner 25 is found compatible with any smartphone whether android or iOS. It provides compatibility with Garmin maps as well. With the help of GPS sensors and satellites, we can track how far, fast, and where you can run. We can connect it to other devices wirelessly. It also uploads wireless data directly to Garmin Connect to track your records and keep you updated. It can be easily connected to Garmin apps. You can instantly share your training progress, and running records with your community, family, and relatives. This can be done using social media or by pairing a compatible device with Garmin Connect TM Mobile. 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 25 Pros

  • Compact design and larger display
  • Heart and sleep rate tracking
  • GPS sensor
  • Long-lasting battery life
  • 5 ATM water resistance
  • Smart Connectivity features

Garmin Forerunner 645 Pros

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

Garmin Forerunner 25 Cones

  • Limited smartwatch functionality
  • Doesn’t have topographical maps.
  • Doesn’t have sensors like Altimeter, Barometer, or Calorimeter
  • Wi-Fi is not enabled.

Garmin Forerunner 645 Cones

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

Design:

Garmin Forerunner 25
Design

For users searching for extraordinary running and affordable tracking features, Garmin Forerunner 25 watch is a great option for them. Garmin Forerunner 25 is a GPS training watch with a large display. The band used is made of silicon and is available in different colors. The lens is made of acrylic material. It has amazing features that help users track their daily routines. This watch can track your distance, pace, calories, number of steps, goals, etc. It motivates users and reminds them when they think they can't run more. You can also stay connected to your runs even with call and text alerts when paired with a smartphone. 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:

0.91""

Screen Size

1.2""

Touch Screen

128 x 128px

Resolution

240 x 240px
39gg

Weight

41.8gg
15°C℃

Min Temperature

Replaceable Band

mm

Band Width

20mmmm
60°C℃

Max Temperature

Waterproof

Screen protection

1680h

Battery Life

168h

Garmin Forerunner 25
Specifications

Garmin Forerunner 25 has several specifications. The screen size is 1.5 inches and weighs about 1.44 ounces. The product dimensions are 0.55 x 1.58 x 1.85 inches. The display has a resolution of 128 x 128 pixels. The battery life of this product in smartwatch mode is up to 10 hours. It has wireless display features. It comes with advanced features like auto lapse, auto pause, auto lap, etc. It's waterproof and has a resistance of 5 ATM. It also contains customizable data pages. Moreover, it works best in visible light and trans reflect the memory in pixels. One lithium-metal battery is used to make its performance even better. 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 25
Activity Tracking:

Tracking features define whether a certain watch or device is to be used for a certain activity or not. Garmin Forerunner 25 comes with a lot of tracking features. It can detect all the activities automatically as the steps count in a day, calories burned, distance covered, etc. It has a built-in GPS which will help precisely record the pace speed and distance traveled. It can work as a watch and activity tracker at the same time. Calories and heart rate can be determined. Moreover, the inactivity indicator makes it even more interesting. It motivates users to move when they have been sitting too long by using a vibration alert. 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 25
Compatibility & Connectivity

Forerunner 25 is found compatible with any smartphone whether android or iOS. It provides compatibility with Garmin maps as well. With the help of GPS sensors and satellites, we can track how far, fast, and where you can run. We can connect it to other devices wirelessly. It also uploads wireless data directly to Garmin Connect to track your records and keep you updated. It can be easily connected to Garmin apps. You can instantly share your training progress, and running records with your community, family, and relatives. This can be done using social media or by pairing a compatible device with Garmin Connect TM Mobile. 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 25 Pros

  • Compact design and larger display
  • Heart and sleep rate tracking
  • GPS sensor
  • Long-lasting battery life
  • 5 ATM water resistance
  • Smart Connectivity features

Garmin Forerunner 645 Pros

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

Garmin Forerunner 25 Cones

  • Limited smartwatch functionality
  • Doesn’t have topographical maps.
  • Doesn’t have sensors like Altimeter, Barometer, or Calorimeter
  • Wi-Fi is not enabled.

Garmin Forerunner 645 Cones

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