Garmin Forerunner 935: Premium GPS Running Watch for 2026

The Importance of Choosing the Right Wearable Device

In the competitive landscape of wearable technology, selecting the right device can significantly impact user experience, fitness outcomes, and long-term satisfaction. For athletes and fitness enthusiasts, a wearable device serves as both a training tool and a performance monitor, offering real-time data to refine techniques and track progress. The Garmin Forerunner 935, a refurbished GPS running and multisport watch, caters to users seeking advanced tracking capabilities without compromising comfort or durability. Its design balances functionality with wearability, making it suitable for daily use while delivering precise metrics for runners, cyclists, and triathletes. With features like wrist-based heart rate monitoring, elevation tracking, and battery life spanning weeks in standard mode, the Forerunner 935 appeals to users who prioritize data accuracy and extended usability. This review evaluates the device’s performance across key criteria, including sensor reliability, comfort, battery efficiency, and compatibility with existing ecosystems, to help buyers make informed decisions in 2026.

Quick Overview

Feature	Details
Device Category	GPS Running/Triathlon Watch
Supported Tracking Metrics	Heart rate, elevation, pace, distance, cadence, ground contact time
Sensors and Hardware	Wrist-based heart rate sensor, barometer, altimeter, electronic compass, GPS
Battery Life	Up to 2 weeks in watch mode, 24 hours in GPS mode, 50–60 hours in UltraTrac mode
Platform Compatibility	Bluetooth connectivity, compatible with iOS and Android devices
Intended User Profiles	Runners, cyclists, triathletes, and multisport athletes
Durability Ratings	IP68 water resistance, suitable for outdoor environments
Warranty and Support	90-day warranty, manufacturer-refurbished unit

The Forerunner 935’s combination of advanced sensors, extended battery life, and compatibility with major platforms makes it a versatile choice for users who require detailed performance analytics without sacrificing wearability. Its durability and reliability further enhance its appeal for long-term use in varied conditions.

Activity and Health Tracking Suitability

The Forerunner 935 excels in delivering comprehensive activity and health tracking capabilities tailored to multisport users. Its integration of GPS, heart rate monitoring, and environmental sensors ensures precise data collection for a wide range of activities. The device’s ability to track elevation changes via a built-in barometer and provide directional guidance through an electronic compass enhances situational awareness during outdoor workouts. Additionally, the watch’s advanced dynamics² technology offers insights into running mechanics, such as ground contact time and stride length, which are critical for optimizing performance. These features collectively support users seeking detailed analytics to refine their training regimens. The Forerunner 935 also includes a training status evaluation system that assesses whether users are undertraining or overexerting themselves, offering personalized feedback to maintain optimal performance levels. For cyclists and triathletes, the device’s multisport mode ensures seamless transitions between activities while maintaining consistent data tracking. This level of customization and precision makes the Forerunner 935 an attractive option for individuals committed to structured, data-driven training.

Multisport Data Integration

The Forerunner 935’s multisport mode allows users to switch between running, cycling, and swimming seamlessly, ensuring that each activity is tracked with activity-specific metrics. For runners, the watch provides detailed insights into pace, elevation, and heart rate variability, while cyclists benefit from cadence tracking and power output analysis. The device’s ability to adapt to different sports minimizes the need for manual configuration, streamlining the user experience. Additionally, the watch’s compatibility with third-party apps and platforms enables users to sync data across multiple devices, fostering a cohesive approach to fitness tracking. This integration is particularly beneficial for athletes who engage in cross-training or compete in multi-discipline events. The Forerunner 935’s data collection capabilities also extend to sleep monitoring and stress level assessments, providing a holistic view of user health beyond physical activity. These features collectively enhance the device’s utility for users who prioritize comprehensive health tracking alongside performance metrics.

Training Status Evaluation

One of the standout features of the Forerunner 935 is its training status evaluation system, which uses data from heart rate, GPS, and motion sensors to determine whether users are undertraining or overexerting themselves. This system analyzes trends over time, offering personalized recommendations to maintain optimal performance levels. For example, if a runner’s heart rate variability indicates high stress levels, the watch may suggest adjusting training intensity or incorporating recovery days. This proactive approach helps users avoid burnout and injury while maximizing the effectiveness of their workouts. The training status evaluation is particularly valuable for endurance athletes who require precise feedback to balance training volume with recovery. By integrating this feature into the watch’s interface, Garmin ensures that users receive actionable insights without disrupting their workflow. The system’s reliance on sensor data rather than subjective input enhances its reliability, making it a trusted tool for performance optimization.

Sensor Accuracy and Data Reliability

The Forerunner 935’s sensor suite is designed to deliver accurate, reliable data across a range of activities. Its wrist-based heart rate monitoring uses optical sensors to track cardiac activity, providing real-time feedback on exertion levels. While this method is generally accurate for most users, it may occasionally lag behind chest strap monitors in high-intensity scenarios. The watch’s GPS functionality, combined with its built-in barometer and altimeter, ensures precise elevation tracking and route mapping, which is essential for trail runners and mountain climbers. The electronic compass further enhances navigation by providing directional accuracy, even in areas with limited satellite signal. However, users should note that environmental factors such as dense foliage or urban canyons may affect GPS signal strength, potentially leading to minor inaccuracies in route data. The Forerunner 935’s ability to maintain consistent data collection in varied conditions makes it a reliable choice for users who require precise tracking for training or competition purposes.

Environmental Sensor Performance

The Forerunner 935’s environmental sensors, including the barometer and altimeter, provide valuable insights into atmospheric conditions and elevation changes. The barometer measures air pressure to track altitude shifts, which is particularly useful for runners training on hilly terrain. The altimeter complements this by offering real-time elevation data, allowing users to monitor vertical progress during workouts. These sensors work in tandem to provide accurate data for activities that involve significant elevation changes, such as trail running or mountain biking. However, users should be aware that extreme weather conditions, such as high humidity or rapid pressure changes, may affect sensor readings. While the device’s environmental sensors are generally reliable, their performance can be influenced by external factors, which users should consider when interpreting data for training or navigation purposes.

Data Sync and Cross-Platform Compatibility

The Forerunner 935’s compatibility with iOS and Android platforms ensures seamless data synchronization across devices. Users can sync their activity data with Garmin Connect, a cloud-based platform that offers detailed analytics and progress tracking. The watch’s Bluetooth connectivity allows for real-time data transfer to smartphones, enabling users to monitor metrics on the go. Additionally, the device supports third-party apps, expanding its functionality for users who prefer alternative fitness platforms. While the Forerunner 935’s cross-platform capabilities are robust, users should note that some advanced features may require specific app integrations or firmware updates to function optimally. This compatibility ensures that users can maintain a cohesive fitness ecosystem without relying solely on Garmin’s proprietary software. The device’s ability to sync with multiple platforms enhances its versatility, making it suitable for users with diverse technological preferences.

Comfort, Fit, and Wearability

The Forerunner 935’s design prioritizes comfort and wearability, making it suitable for extended use during training sessions and daily activities. Weighing just 49 grams, the watch is lightweight enough to be worn throughout the day without causing discomfort. The 1.2-inch touchscreen interface is responsive and easy to navigate, even when wearing gloves, which is beneficial for outdoor activities. The device’s IP68 water resistance rating ensures that it can withstand sweat, rain, and accidental submersion, making it durable for various environments. However, users who engage in high-impact activities may find the watch’s strap design less secure compared to more rigid alternatives. The Forerunner 935’s ergonomic layout and adjustable band options provide flexibility for different wrist sizes, but its focus on functionality over aesthetics may appeal more to performance-oriented users than fashion-conscious individuals. Overall, the device’s balance of comfort and durability makes it a practical choice for athletes who prioritize long-term wearability without compromising on performance.

Strap and Band Options

The Forerunner 935 offers multiple strap and band options to accommodate different user preferences and activity types. The standard silicone band is ideal for everyday wear, providing a secure fit while remaining lightweight. For users who engage in high-intensity sports, the device includes a dedicated sports band with a reinforced strap for added durability. The watch also supports interchangeable bands, allowing users to customize the device for different occasions or activities. While the variety of band options enhances usability, the lack of a magnetic clasp or quick-release mechanism may inconvenience users who frequently switch between bands. The Forerunner 935’s strap design is generally comfortable for most users, but those with larger wrists may find the standard band slightly restrictive. This level of customization ensures that the device can be adapted to individual needs, though users should consider their specific requirements when selecting a band.

Long-Term Wearability

The Forerunner 935’s wearability is further enhanced by its lightweight design and durable construction, making it suitable for long-term use. The 49-gram weight minimizes the risk of discomfort during extended wear, while the IP68 rating ensures that the device remains functional in harsh conditions. The touchscreen interface is responsive and easy to use, even when the watch is in motion, which is particularly useful for athletes who need quick access to data during workouts. However, users who prefer a more traditional watch face may find the touchscreen interface less intuitive. The Forerunner 935’s focus on functionality over aesthetics makes it an ideal choice for users who prioritize performance metrics over visual appeal. While the device’s design may not appeal to all users, its practicality and durability ensure that it remains a reliable companion for long-term use.

Battery Life and Charging Expectations

The Forerunner 935’s battery life is a significant advantage for users who require extended use without frequent recharging. In watch mode, the device can last up to 2 weeks, which is ideal for users who wear it daily for fitness tracking and notifications. The GPS mode offers 24 hours of battery life, sufficient for long-distance runs or multi-day outdoor activities. The UltraTrac mode, which prioritizes battery efficiency, extends usage to 50–60 hours, depending on whether the wrist-based heart rate sensor is enabled. This flexibility allows users to tailor battery consumption based on their activity needs. While the device’s battery life is impressive, users should note that continuous GPS usage or high-intensity data collection can drain the battery more quickly. The Forerunner 935’s charging process is straightforward, with a USB connection that ensures quick recharging when needed. However, the reliance on AA batteries for the included battery pack may be a drawback for users who prefer rechargeable options. Overall, the device’s battery management system provides a reliable solution for users who prioritize extended use without frequent charging.

Power Management and Modes

The Forerunner 935’s power management system is designed to optimize battery life across different usage scenarios. The watch mode, which is ideal for daily wear, conserves energy by limiting GPS and sensor activity, extending battery life to up to 2 weeks. For users who require precise location tracking, the GPS mode provides 24 hours of operation, ensuring that data collection remains uninterrupted during extended outdoor sessions. The UltraTrac mode further enhances battery efficiency by reducing power consumption while maintaining essential tracking features. This mode is particularly beneficial for users who engage in long-distance running or multi-day trips, as it allows for extended use without frequent recharging. The Forerunner 935’s ability to adapt its power consumption based on user needs ensures that it remains a practical choice for a wide range of activities.

Charging and Battery Replacement

The Forerunner 935’s charging process is straightforward, with a USB connection that allows for quick recharging when needed. The device’s battery life is supported by a single AA battery, which is included in the package. While this design simplifies battery replacement, it may be less convenient for users who prefer rechargeable options. The AA battery provides a reliable power source, ensuring that the device remains functional even in situations where charging is not immediately available. However, users should be aware that frequent battery replacements may be necessary for long-term use, particularly in high-usage scenarios. The Forerunner 935’s reliance on disposable batteries is a trade-off between convenience and sustainability, which users should consider based on their specific needs and environmental preferences.

Device Compatibility and Ecosystem Integration

The Forerunner 935’s compatibility with major platforms ensures seamless integration into existing fitness ecosystems. Its Bluetooth connectivity allows for real-time data transfer to smartphones, enabling users to monitor metrics on the go. The device’s compatibility with iOS and Android platforms ensures that users can sync data with their preferred apps and services, enhancing the overall usability of the watch. Additionally, the Forerunner 935 supports third-party apps, expanding its functionality for users who prefer alternative fitness platforms. While the device’s cross-platform capabilities are robust, users should note that some advanced features may require specific app integrations or firmware updates to function optimally. This compatibility ensures that users can maintain a cohesive fitness ecosystem without relying solely on Garmin’s proprietary software. The device’s ability to sync with multiple platforms enhances its versatility, making it suitable for users with diverse technological preferences.

Third-Party App Integration

The Forerunner 935’s support for third-party apps expands its functionality beyond Garmin’s native ecosystem. Users can integrate the watch with popular fitness platforms such as Strava, MapMyRun, and Nike Run Club, allowing for seamless data synchronization and performance analysis. This integration is particularly beneficial for users who prefer alternative fitness tracking services or want to consolidate data from multiple sources. However, the level of compatibility with third-party apps may vary, as some advanced features may require specific app versions or firmware updates to function correctly. The Forerunner 935’s ability to work with a range of platforms ensures that users can customize their fitness experience according to their preferences. While the device’s cross-platform capabilities are a significant advantage, users should verify compatibility with their preferred apps before relying on third-party integrations for critical data tracking.

Firmware and Software Updates

The Forerunner 935’s software ecosystem is designed to support regular firmware and software updates, ensuring that users have access to the latest features and improvements. Garmin provides periodic updates that enhance device performance, add new functionalities, and address potential issues. These updates are typically delivered through the Garmin Connect platform, allowing users to download and install them without requiring physical intervention. The device’s ability to receive software updates ensures that its capabilities remain up-to-date with evolving user needs and technological advancements. While the update process is generally straightforward, users should ensure that their device remains connected to the internet for seamless firmware delivery. The Forerunner 935’s commitment to software support enhances its longevity and usability, making it a reliable choice for users who value continuous improvement in their wearable experience.

Pros & Cons

Pros

• Comprehensive Activity Tracking: The Forerunner 935 offers detailed metrics for running, cycling, and swimming, providing users with a holistic view of their performance across multiple disciplines.
• Extended Battery Life: With up to 2 weeks of battery life in watch mode, the device minimizes the need for frequent recharging, making it ideal for long-term use.
• Advanced Sensor Suite: The integration of GPS, heart rate monitoring, and environmental sensors ensures precise data collection for a wide range of activities.
• Cross-Platform Compatibility: The device’s support for iOS and Android platforms, along with third-party app integration, enhances its usability and adaptability.
• Durability and Water Resistance: The IP68 rating and robust construction make the Forerunner 935 suitable for use in various environments, including harsh weather conditions.
• Training Status Evaluation: The watch’s ability to assess training status provides users with personalized feedback to optimize their performance and recovery.
• User-Friendly Interface: The responsive touchscreen and intuitive navigation ensure that users can access data and settings quickly and efficiently.
• Customizable Strap Options: The availability of multiple band options allows users to tailor the device to their specific needs and preferences.

Cons

• Limited Aesthetic Customization: While the Forerunner 935 offers functional customization through straps, its design prioritizes performance over aesthetics, which may not appeal to all users.
• Battery Dependency on AA Batteries: The reliance on disposable AA batteries may be inconvenient for users who prefer rechargeable options, requiring frequent replacements.
• Potential GPS Signal Variability: In areas with limited satellite signal, such as urban canyons or dense forests, GPS accuracy may be affected, leading to minor data discrepancies.
• Limited Smartwatch Features: Compared to modern smartwatches, the Forerunner 935 lacks advanced smartwatch capabilities such as app notifications or mobile payments, focusing instead on fitness tracking.
• Slight Strap Restriction for Larger Wrist Sizes: The standard silicone band may feel restrictive for users with larger wrists, though adjustable band options can mitigate this issue.
• Software Updates Require Connectivity: Regular firmware updates necessitate a stable internet connection, which may be a limitation for users in remote areas.

Final Verdict: Who This Wearable Is Best For (and Who Should Skip It)

The Garmin Forerunner 935 is an excellent choice for athletes and fitness enthusiasts who prioritize advanced tracking capabilities, extended battery life, and durability. Its comprehensive sensor suite and multisport mode make it ideal for runners, cyclists, and triathletes who require precise data for performance optimization. The device’s compatibility with major platforms and third-party apps ensures seamless integration into existing fitness ecosystems, enhancing its versatility. However, users who value aesthetic customization or advanced smartwatch features may find the Forerunner 935 less appealing. Additionally, those who rely on frequent app notifications or mobile payments may prefer a more feature-rich smartwatch. The Forerunner 935’s reliance on AA batteries and potential GPS signal variability are notable drawbacks for users who prioritize convenience or precision. Overall, the Forerunner 935 remains a reliable and practical choice for users who prioritize performance tracking over smartwatch functionality, making it a strong contender in the 2026 wearable market.

Frequently Asked Questions (FAQs)

What activities is the Garmin Forerunner 935 best suited for?

The Garmin Forerunner 935 is ideal for runners, cyclists, and triathletes who require detailed tracking for multisport activities. Its GPS, heart rate, and environmental sensors provide precise data for a range of outdoor and athletic pursuits.

How long does the Forerunner 935 last on a single charge?

The Forerunner 935 offers up to 2 weeks of battery life in watch mode, 24 hours in GPS mode, and 50–60 hours in UltraTrac mode, depending on usage and sensor configurations.

Is the Forerunner 935 compatible with iOS and Android devices?

Yes, the Forerunner 935 supports Bluetooth connectivity and is compatible with both iOS and Android platforms, allowing for seamless data synchronization and app integration.

What are the key environmental sensors included in the Forerunner 935?

The Forerunner 935 includes a barometer, altimeter, and electronic compass to measure elevation changes, atmospheric pressure, and directional accuracy during outdoor activities.

Can the Forerunner 935 track training status and provide feedback?

Yes, the device evaluates training status using heart rate, GPS, and motion data to determine if users are undertraining or overexerting, offering personalized feedback for optimal performance.

What are the battery requirements for the Forerunner 935?

The Forerunner 935 uses 1 AA battery, which is included in the package, providing reliable power for extended use without frequent recharging.

How does the Forerunner 935 handle GPS signal accuracy in challenging environments?

The Forerunner 935’s GPS functionality is generally reliable, though signal strength may be affected by dense foliage or urban canyons, potentially leading to minor inaccuracies in route data.

What customization options are available for the Forerunner 935’s strap?

The Forerunner 935 offers multiple strap options, including a standard silicone band and a dedicated sports band for high-impact activities, allowing users to customize the device for different needs.