Fitbit Inspire 3 vs Garmin Forerunner 645

Design:

Fitbit Inspire 3
Design

Fitbit Inspire series was loved so much that developers made inspire 3 to meet the needs of their users. The material used to make the Fitbit inspire 3 is silicone and it’s available in a rectangular shape. With a user-friendly interface, it will help the new users in getting on track related to fitness. The elastomer material of inspire 3 waistband makes it long-lasting and durable. It’s available in three different colors i.e. Midnight Zen / Black Lilac Bliss / Black. Inspire 3 is here to inspire you to start your fitness journey and will help you in achieving your goals. 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

124 x 208px

Resolution

240 x 240px

Weight

41.8g

Waterproof

40

Max Temperature

0

Min Temperature

Replaceable Band

Band Width

20mm

Screen protection

240

Battery Life

168
2

Charging Time

Fitbit Inspire 3
Specifications

The screen size of Fitbit Inspire 3 is 1.55 inches, and it’s equipped with a touch screen panel. The resolution that this Fitbit offers is 72 x 128 pixels which is a great feature. The display is color PMOLED. It's water resistant meaning it won't get affected due to rain and can withhold up to 50 m, which is its ware resistant depth. Also its dust proof. The operating temperature Inspire 3 can withhold stat from 14 to 113°F / -10 to 45°C. The operating altitude is around 28,000' / 8534 m. The watch band is replaceable and the charge time is around 1-2 hours and the battery last for around 10 days. 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

Fitbit Inspire 3
Activity Tracking:

The tracking features of Fitbit Inspire 3 include a GPS to track your route throughout the journey. It also withholds various sensors like the pedometer, calorie intake calculator, and step counter which will help keep you active throughout the day. It also has an optical heart rate monitor and is equipped with red and infrared sensors for monitoring blood oxygen also known as SPO2 monitoring. Also, it’s equipped with a 3-axis accelerometer. It will also keep in check the food and water intake along with a stopwatch, and timer. It’s also shock resistant so it’s prone to bumps and the user can enjoy the sports mode. 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

Fitbit Inspire 3
Compatibility & Connectivity

Inspire 3 is compatible with both android, IOS, and MAC OS X. for iPhone users need to have iOS 14 or above to get Fitbit to function properly. For Android users, it needs android OS 8 higher or above. It supports Wi-Fi and can automatically sync the records as well. It provides incoming call notifications and has a cellular module. There is the availability of connecting with Bluetooth as well. One needs to install the Fitbit app first and then run it on their device after signing into the account. This way Fitbit will run smoothly and users can enjoy its compatibility features well. 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

Fitbit Inspire 3 Pros

  • Lightweight and easy to wear
  • Beautiful AMOLED display
  • Has fitness sensors that works very efficiently
  • Long battery lasting
  • Budget-friendly, not very costly

Garmin Forerunner 645 Pros

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

Fitbit Inspire 3 Cones

  • No altimeter is available.
  • Sometimes it gets tricky to disconnect the charger.
  • For some, the screen might feel a bit small
  • Functionality might be a problem for some users

Garmin Forerunner 645 Cones

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

Design:

Fitbit Inspire 3
Design

Fitbit Inspire series was loved so much that developers made inspire 3 to meet the needs of their users. The material used to make the Fitbit inspire 3 is silicone and it’s available in a rectangular shape. With a user-friendly interface, it will help the new users in getting on track related to fitness. The elastomer material of inspire 3 waistband makes it long-lasting and durable. It’s available in three different colors i.e. Midnight Zen / Black Lilac Bliss / Black. Inspire 3 is here to inspire you to start your fitness journey and will help you in achieving your goals. 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

124 x 208px

Resolution

240 x 240px
g

Weight

41.8gg
0℃

Min Temperature

Replaceable Band

mm

Band Width

20mmmm
40℃

Max Temperature

Waterproof

Screen protection

240h

Battery Life

168h

Fitbit Inspire 3
Specifications

The screen size of Fitbit Inspire 3 is 1.55 inches, and it’s equipped with a touch screen panel. The resolution that this Fitbit offers is 72 x 128 pixels which is a great feature. The display is color PMOLED. It's water resistant meaning it won't get affected due to rain and can withhold up to 50 m, which is its ware resistant depth. Also its dust proof. The operating temperature Inspire 3 can withhold stat from 14 to 113°F / -10 to 45°C. The operating altitude is around 28,000' / 8534 m. The watch band is replaceable and the charge time is around 1-2 hours and the battery last for around 10 days. 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:

2h

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

Fitbit Inspire 3
Activity Tracking:

The tracking features of Fitbit Inspire 3 include a GPS to track your route throughout the journey. It also withholds various sensors like the pedometer, calorie intake calculator, and step counter which will help keep you active throughout the day. It also has an optical heart rate monitor and is equipped with red and infrared sensors for monitoring blood oxygen also known as SPO2 monitoring. Also, it’s equipped with a 3-axis accelerometer. It will also keep in check the food and water intake along with a stopwatch, and timer. It’s also shock resistant so it’s prone to bumps and the user can enjoy the sports mode. 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

Fitbit Inspire 3
Compatibility & Connectivity

Inspire 3 is compatible with both android, IOS, and MAC OS X. for iPhone users need to have iOS 14 or above to get Fitbit to function properly. For Android users, it needs android OS 8 higher or above. It supports Wi-Fi and can automatically sync the records as well. It provides incoming call notifications and has a cellular module. There is the availability of connecting with Bluetooth as well. One needs to install the Fitbit app first and then run it on their device after signing into the account. This way Fitbit will run smoothly and users can enjoy its compatibility features well. 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

Fitbit Inspire 3 Pros

  • Lightweight and easy to wear
  • Beautiful AMOLED display
  • Has fitness sensors that works very efficiently
  • Long battery lasting
  • Budget-friendly, not very costly

Garmin Forerunner 645 Pros

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

Fitbit Inspire 3 Cones

  • No altimeter is available.
  • Sometimes it gets tricky to disconnect the charger.
  • For some, the screen might feel a bit small
  • Functionality might be a problem for some users

Garmin Forerunner 645 Cones

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