Garmin Forerunner 45 vs. Garmin Vivoactive

Forerunner 45
 GarminForerunner 45Buy NowGarminVivoactiveBuy Now

Basic Info

Suggested Price$199$250

Activity & Fitness

Cycling (Bicycling)


Duration7 days14 hours to 11 days


Windows Phonen/a




Resolution208 x 208205 x 148
Size1.04 inches1.38 inches


Audio Speaker


Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM5 ATM




Operating SystemBuilt-inn/a

Comparing Vivoactive and Forerunner 45

The Garmin Forerunner 45 and Garmin Vivoactive are two popular smartwatches that offer a range of features for fitness enthusiasts and everyday users alike. Both watches come from a reputable brand known for producing high-quality wearables with accurate tracking capabilities. Garmin has a long history in the business, building a reputation for reliability and innovation in the wearables industry.

Choosing the right smartwatch is crucial, as it can impact your overall fitness journey and daily convenience. In this detailed comparison, we will explore the design, features, performance, user interface, pricing, and value of the Garmin Forerunner 45 and Garmin Vivoactive. This information will help you decide which smartwatch best meets your needs and preferences.

Design and Build

Garmin Forerunner 45

The Forerunner 45 sports a sleek circular design made from durable materials. The watch face measures 1.04 inches with a screen resolution of 208 x 208 pixels. Its monochrome LCD display is easy to read and navigate throughout the day. The overall size and weight of the Forerunner 45 make it comfortable for everyday use, whether you’re exercising or running errands.

Garmin Vivoactive

On the other hand, the Garmin Vivoactive showcases a rectangular form factor, setting it apart from the circular design of the Forerunner 45. Its 1.38-inch display has a screen resolution of 205 x 148 pixels, providing colorful navigation through its LCD screen. The Vivoactive’s build makes it lightweight and compact, suitable for various activities and wearing occasions.

Comparison of design and build quality

Both the Forerunner 45 and Vivoactive share similarities in water resistance (5 ATM) and durable build. However, there are notable differences in style, with the former utilizing a circular design while the latter takes on a rectangular form. Depending on personal style preference, users may gravitate towards one design over the other.

Features and Functionality

Garmin Forerunner 45

Equipped with a built-in operating system, the Forerunner 45 offers comprehensive fitness tracking features, including calories, distance, steps, cycling, swimming, sleep, and heart rate monitoring. The smartwatch has a 7-day battery life, GPS connectivity, and Bluetooth capability. Additionally, it supports phone functions, emails, and text notifications.

Garmin Vivoactive

Meanwhile, the Garmin Vivoactive possesses similar tracking features for calories, distance, steps, cycling, swimming, sleep, and heart rate monitoring. Its battery life ranges from 14 hours to 11 days depending on usage, and it includes GPS, Bluetooth, and Wi-Fi support. The Vivoactive also supports phone functions, emails, text notifications, and music playback.

Comparison of features and performance

Comparing their features, both the Forerunner 45 and Vivoactive deliver accurate fitness tracking, convenient connectivity, and smartphone compatibility. However, the Vivoactive has the added advantage of Wi-Fi and extended battery life in various conditions.

User Interface and User Experience

Garmin Forerunner 45

The Forerunner 45 offers an accessible display that allows users to navigate effortlessly through various functions such as apps and customization options. It supports compatibility with Android and iOS devices, providing seamless integration with smartphones and other mobile devices.

Garmin Vivoactive

Similarly, the Vivoactive delivers a user-friendly experience with its interactive display, navigation, apps, and customization options. It is also compatible with Android and iOS devices, ensuring it caters to a wide range of smartphone users.

Comparison of user interface and user experience

In terms of user interface and experience, the Garmin Forerunner 45 and Vivoactive provide intuitive navigation, customizable options, and smartphone compatibility. Both smartwatches cater to different preferences with their individual operational systems, features, and display styles.

Price and Value

Garmin Forerunner 45

At a price of $199, the Forerunner 45 offers excellent value for those seeking a versatile smartwatch with robust fitness tracking capabilities and reliable connectivity.

Garmin Vivoactive

Priced at $250, the Garmin Vivoactive delivers an expanded set of features, including Wi-Fi connectivity and music playback, making it an attractive option for users who require additional functionality.

Comparison of price and value

While the Forerunner 45 is a more budget-friendly option, the Vivoactive justifies its higher price tag with added features and longer battery life, depending on usage. Ultimately, individuals should consider their personal needs and preferences when weighing the value of each device.


Both the Garmin Forerunner 45 and Garmin Vivoactive offer a fantastic range of features, design options, and reliable performance, catering to different preferences and budgets. Considering their respective strengths and limitations, users can determine which smartwatch best suits their lifestyle and fitness goals. Regardless of your choice, both devices embody Garmin’s commitment to quality and innovation in the wearables market.

Frequently Asked Questions

1. Which smartwatch has better battery life?

The Garmin Vivoactive has a longer battery life, ranging between 14 hours and 11 days, compared to the Forerunner 45's 7-day battery life.

2. Can I play music on the Garmin Forerunner 45 and Vivoactive?

Yes, both smartwatches support music playback capabilities.

3. Are the Garmin Forerunner 45 and Vivoactive waterproof?

Both watches are water-resistant up to 5 ATM, suitable for various water activities such as swimming and snorkeling.

4. Can I use the Garmin Forerunner 45 and Vivoactive with my iPhone or Android phone?

Yes, both smartwatches are compatible with iOS and Android smartphones.

5. Do the Garmin Forerunner 45 and Vivoactive support GPS functionality?

Yes, both devices include GPS connectivity for accurate location tracking during outdoor activities.

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