81points

Garmin Fenix 5 Sapphire

100points

Garmin Forerunner 645 Music

Garmin Fenix 5 Sapphire
Comparison winner
Garmin Forerunner 645 Music
vs
vs

111 facts in comparison

Garmin Fenix 5 Sapphire vs Garmin Forerunner 645 Music

Garmin Fenix 5 Sapphire
Garmin Forerunner 645 Music
Garmin Fenix 5 Sapphire
Garmin Forerunner 645 Music
81
points
100
points

Why is Garmin Fenix 5 Sapphire better than Garmin Forerunner 645 Music?

  • Has vibrating alerts
  • Can upload maps
  • Has an altimeter
  • Has sapphire glass display
  • Has a stroke counter for swimming
  • Has stroke recognition
  • Screen is always on
  • Watch band is replaceable

Why is Garmin Forerunner 645 Music better than Garmin Fenix 5 Sapphire?

  • Has a route tracker
  • 42.8g lighter
    42.2gvs85g
  • Has achievements
  • 2mm thinner
    13.5mmvs15.5mm
  • Detects activities
  • Includes access to online portal
  • Tracks your sleep
  • 4.5mm shorter
    42.5mmvs47mm

Top specs and features

Design

1.Is dustproof and water resistant
Garmin Fenix 5 Sapphire
Garmin Forerunner 645 Music

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

2.sweat resistant
Garmin Fenix 5 Sapphire
Garmin Forerunner 645 Music

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

3.Has a display
Garmin Fenix 5 Sapphire
Garmin Forerunner 645 Music

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

4.waterproofing maximum depth

100m

50m

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

5.resolution

240 x 240px

240 x 240px

Best

Suunto 9

300 x 320px

6.weight

85g

42.2g

Best

Polar RCX3 GPS

33g

Sensors

1.has GPS
Garmin Fenix 5 Sapphire
Garmin Forerunner 645 Music

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

2.Has a heart rate monitor
Garmin Fenix 5 Sapphire
Garmin Forerunner 645 Music

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

3.Has a barometer
Garmin Fenix 5 Sapphire
Garmin Forerunner 645 Music

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 Fenix 5 Sapphire
Garmin Forerunner 645 Music

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 Fenix 5 Sapphire
Garmin Forerunner 645 Music

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

6.Has a temperature sensor
Garmin Fenix 5 Sapphire
Garmin Forerunner 645 Music

With a temperature sensor you can monitor changes in temperature to measure your exertion levels and avoid hyperthermia.

For example

Garmin Fenix 5 47mm

Activity tracking

1.Tracks distance
Garmin Fenix 5 Sapphire
Garmin Forerunner 645 Music

It tracks how far you travel.

2.Provides activity reports
Garmin Fenix 5 Sapphire
Garmin Forerunner 645 Music

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.

3.Measures pace
Garmin Fenix 5 Sapphire
Garmin Forerunner 645 Music

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.

4.Has a route tracker
Garmin Fenix 5 Sapphire
Garmin Forerunner 645 Music

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.

5.Detects activities
Garmin Fenix 5 Sapphire
Garmin Forerunner 645 Music

The device automatically detects when you start an activity such as jogging, saving you from entering it manually at a later time.

6.Has goal setting
Garmin Fenix 5 Sapphire
Garmin Forerunner 645 Music

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

Connectivity

1.Syncs wirelessly
Garmin Fenix 5 Sapphire
Garmin Forerunner 645 Music

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

2.Has Bluetooth
Garmin Fenix 5 Sapphire
Garmin Forerunner 645 Music

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 Fenix 5 Sapphire
Garmin Forerunner 645 Music

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

4.Automatically syncs
Garmin Fenix 5 Sapphire
Garmin Forerunner 645 Music

The device automatically syncs your data when in range of your computer or smartphone.

5.Is compatible with iOS
Garmin Fenix 5 Sapphire
Garmin Forerunner 645 Music

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

6.Supports ANT+
Garmin Fenix 5 Sapphire
Garmin Forerunner 645 Music

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.

Battery

1.has a battery level indicator
Garmin Fenix 5 Sapphire
Garmin Forerunner 645 Music

An indicator shows you when the device has low battery.

2.battery life with GPS on

24h

5h

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

Best

Suunto Ambit3 Peak Sapphire (HR)

50h

3.battery life

14 days

7 days

With a longer battery life, you don’t have to worry about charging the device as often.

Best

Tech4o Traileader Jet

730 days

4.has a rechargeable battery
Garmin Fenix 5 Sapphire
Garmin Forerunner 645 Music

The battery can be recharged and used over again.

5.Alerts you to low phone battery
Garmin Fenix 5 Sapphire
Garmin Forerunner 645 Music

When your paired smartphone is running low on battery, the smartwatch will notify you.

6.has a removable battery
Garmin Fenix 5 Sapphire
Garmin Forerunner 645 Music

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

For example

Magellan Echo Fit

Features

1.Has vibrating alerts
Garmin Fenix 5 Sapphire
Garmin Forerunner 645 Music

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

2.Has achievements
Garmin Fenix 5 Sapphire
Garmin Forerunner 645 Music

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

3.Has silent alarm
Garmin Fenix 5 Sapphire
Garmin Forerunner 645 Music

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

4.Acquires GPS faster
Garmin Fenix 5 Sapphire
Garmin Forerunner 645 Music

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

5.Has inactivity alerts
Garmin Fenix 5 Sapphire
Garmin Forerunner 645 Music

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

6.Has notifications
Garmin Fenix 5 Sapphire
Garmin Forerunner 645 Music

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.

Miscellaneous

1.Has an altimeter
Garmin Fenix 5 Sapphire
Garmin Forerunner 645 Music

An altimeter can track elevation, ascent and descent using GPS or air pressure. It is particularly useful if you travel on hills or mountains.

2.Has trackback mode
Garmin Fenix 5 Sapphire
Garmin Forerunner 645 Music

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

3.Can upload maps
Garmin Fenix 5 Sapphire
Garmin Forerunner 645 Music

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

4.Informs about the risk of thunderstorms
Garmin Fenix 5 Sapphire
Garmin Forerunner 645 Music

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

5.Has a world timer
Garmin Fenix 5 Sapphire
Garmin Forerunner 645 Music

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

6.Is geocaching friendly
Garmin Fenix 5 Sapphire
Garmin Forerunner 645 Music

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

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