100points

Garmin Forerunner 645 Music

32points

Polar RC3 GPS

Comparison winner
Garmin Forerunner 645 Music
Polar RC3 GPS
vs
vs

106 facts in comparison

Garmin Forerunner 645 Music vs Polar RC3 GPS

Garmin Forerunner 645 Music
Polar RC3 GPS
Garmin Forerunner 645 Music
Polar RC3 GPS

Why is Garmin Forerunner 645 Music better than Polar RC3 GPS?

  • Is compatible with Android
  • Has Bluetooth
  • Provides activity reports
  • Has a barometer
  • 15.8g lighter
    42.2gvs58g
  • Syncs wirelessly
  • Has an accelerometer
  • Has goal setting

Why is Polar RC3 GPS better than Garmin Forerunner 645 Music?

  • 7h longer battery life - GPS
    12hvs5h
  • Can upload maps
  • Has a cadence sensor

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Top specs and features

relevant

Design

1.Is dustproof and water resistant
Garmin Forerunner 645 Music
Polar RC3 GPS

Dustproof/water resistant at depth equal to or greater than 1 meter.

2.Has a display
Garmin Forerunner 645 Music
Polar RC3 GPS

The device has an electronic display to present information to the user.

3.waterproofing maximum depth

50m

30m

These devices will not experience water damage, e.g. in the shower. Devices which can withstand more water pressure are better for swimming or diving.

Best

Casio GWA1000FC-2A

200m

4.sweat resistant
Garmin Forerunner 645 Music
Polar RC3 GPS

Resistance to sweat makes it ideal for use while doing sports.

5.weight

42.2g

58g

Best

Polar RCX3 GPS

33g

6.thickness

13.5mm

13.7mm

Best

Motorola MOTOACTV

9.6mm

relevant

Sensors

1.has GPS
Garmin Forerunner 645 Music
Polar RC3 GPS

GPS enables global positioning, useful in map, geo-tagging or navigation apps.

2.Has a heart rate monitor
Garmin Forerunner 645 Music
Polar RC3 GPS

A heart rate monitor can help show your fitness levels, enabling you to calculate a suitable intensity of exercise.

3.Has a barometer
Garmin Forerunner 645 Music
Polar RC3 GPS

This measures barometric air pressure. It can predict weather changes, for example a sudden drop in air pressure could mean a storm is coming. When calibrated correctly it can be used to determine altitude, which helps GPS devices to lock on quicker and with greater accuracy.

4.has an accelerometer
Garmin Forerunner 645 Music
Polar RC3 GPS

An accelerometer is a sensor used to measure the linear acceleration of a device. A common application is detecting when a device changes between vertical and horizontal positions.

5.has a compass
Garmin Forerunner 645 Music
Polar RC3 GPS

A compass is useful in games, map and navigation software.

6.Has a 3D compass
Garmin Forerunner 645 Music
Polar RC3 GPS

3D compass is a compass that will show accurate readings also when the compass is tilted. Therefore you don’t need to keep the compass on level ground to get steady readings.

For example

Garmin Fenix 5X

relevant

Activity tracking

1.Provides activity reports
Garmin Forerunner 645 Music
Polar RC3 GPS

Your activity data is analysed to give you reports, available to view through the app or website. This allows you to see how active you have been and to help you make improvements.

2.Tracks distance
Garmin Forerunner 645 Music
Polar RC3 GPS

It tracks how far you travel.

3.Has a route tracker
Garmin Forerunner 645 Music
Polar RC3 GPS

With a route tracker you can add your route onto a map. It is helpful if you plan to do the same route again, or want to share it with your community.

4.Measures pace
Garmin Forerunner 645 Music
Polar RC3 GPS

Measuring pace shows how much time it takes to travel one kilometer or one mile. For example, in running, a 4 minute kilometer would be a very good pace.

5.Counts how many calories you have burnt
Garmin Forerunner 645 Music
Polar RC3 GPS

This is useful if you are on a strict training diet or if you are trying to lose weight. It can also help to boost your motivation.

6.Has goal setting
Garmin Forerunner 645 Music
Polar RC3 GPS

Allows you to set your own goals, such as reaching 15,000 steps in a single day.

relevant

Connectivity

1.Syncs wirelessly
Garmin Forerunner 645 Music
Polar RC3 GPS

The device syncs all of your data wirelessly, without the need for cables.

2.Has Bluetooth
Garmin Forerunner 645 Music
Polar RC3 GPS

Bluetooth is a wireless technology that allows you to easily transfer data between different devices, such as smartphones, tablets and computers.

3.Is compatible with Android
Garmin Forerunner 645 Music
Polar RC3 GPS

It is compatible with a range of Android devices such as smartphones and tablets.

4.Is compatible with iOS
Garmin Forerunner 645 Music
Polar RC3 GPS

It is compatible with a range of iOS devices such as iPhones, iPads and the iPod Touch.

5.Supports ANT+
Garmin Forerunner 645 Music
Polar RC3 GPS

ANT+ is a wireless protocol similar to Bluetooth Smart, and is very power efficient. It is mainly used for fitness monitoring devices such as heart rate monitors and cadence sensors to connect to other devices, eg. sports watches, smartphones and cycling computers.

6.Has 802.11n WiFi connection
Garmin Forerunner 645 Music
Polar RC3 GPS

802.11n is a wireless standard released in 2009. It has faster transfer rates and improved security compared to its predecessors - a, b and g.

relevant

Battery

1.has a battery level indicator
Garmin Forerunner 645 Music
Polar RC3 GPS

An indicator shows you when the device has low battery.

2.battery life with GPS on

5h

12h

There is less chance that you will run out of battery during an adventure.

Best

Suunto Ambit3 Peak Sapphire (HR)

50h

3.has a rechargeable battery
Garmin Forerunner 645 Music
Polar RC3 GPS

The battery can be recharged and used over again.

4.Has a solar power battery
Garmin Forerunner 645 Music
Polar RC3 GPS

A solar battery takes its energy from light, and stores it in a self-recharging battery which never needs to be changed.

For example

Casio GWA1000FC-2A

5.has a removable battery
Garmin Forerunner 645 Music
Polar RC3 GPS

The battery is removable and can be replaced by the user if broken.

For example

Magellan Echo Fit

6.wireless charging
Garmin Forerunner 645 Music
Polar RC3 GPS

The manufacturer offers a branded wireless charging kit. To charge the device, you simply put it down on its charging base.

For example

Casio Pro Trek Smart WSD-F10

relevant

Features

1.Has vibrating alerts
Garmin Forerunner 645 Music
Polar RC3 GPS

Vibrating alerts have a variety of uses, such as interval training.

For example

Suunto 9

2.Has achievements
Garmin Forerunner 645 Music
Polar RC3 GPS

You are awarded achievements for reaching goals, helping to encourage you and keep you motivated.

3.Has silent alarm
Garmin Forerunner 645 Music
Polar RC3 GPS

The device can wake you using vibration, so as not to disturb anyone else sleeping in the room.

4.Has notifications
Garmin Forerunner 645 Music
Polar RC3 GPS

If you get a notification such as a call or message, the device will vibrate on your wrist or make a noise to alert you.

5.Acquires GPS faster
Garmin Forerunner 645 Music
Polar RC3 GPS

It can periodically download data on the future position of GPS satellites. This enables it to lock on much faster, so you don’t have to wait around to get a GPS fix.

For example

TomTom Spark 3

6.Has inactivity alerts
Garmin Forerunner 645 Music
Polar RC3 GPS

The device detects when you have been idle for too long, and alerts you to encourage you to stay active.

relevant

Miscellaneous

1.Has trackback mode
Garmin Forerunner 645 Music
Polar RC3 GPS

This feature enables you to track your route and reverse it in order to guide you back to where you began your journey.

For example

Garmin Fenix 5 47mm

2.Can upload maps
Garmin Forerunner 645 Music
Polar RC3 GPS

You can upload different maps to your device. It is handy for people who like to explore new places.

3.Informs about the risk of thunderstorms
Garmin Forerunner 645 Music
Polar RC3 GPS

It can provide you with information about the likelihood of a thunderstorm. This could be very useful to plan your day.

For example

Suunto Traverse Alpha

4.Has a world timer
Garmin Forerunner 645 Music
Polar RC3 GPS

With a world timer you can easily see the time all over the globe. It is useful if you are travelling through different time zones.

For example

Laser Navig8r Navwatch S20

5.Is geocaching friendly
Garmin Forerunner 645 Music
Polar RC3 GPS

Geocaching friendly devices enable you to join in the global game of geocaching, hiding and finding treasures.

6.Provides the sunrise/sunset time
Garmin Forerunner 645 Music
Polar RC3 GPS

It can provide you with the exact time when the sunset or sunrise will take place. This feature will help you to plan your day by knowing when daylight starts and finishes.

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