Garmin Forerunner 935 Review: GPS Accuracy, Multisport Tracking, and Durability
The Importance of Choosing the Right Wearable for Runners and Multisport Athletes
In the competitive world of running and multisport training, the right wearable device can significantly impact performance, recovery, and long-term health outcomes. For athletes seeking precision in tracking metrics like pace, elevation, and heart rate variability, a device that balances advanced functionality with comfort is essential. The Garmin Forerunner 935, a renewed version of a 2018 model, remains a notable option for runners and triathletes who prioritize GPS accuracy, multisport tracking, and long-term wearability. Its design caters to users who need reliable data across diverse conditions, from trail runs to open-water swims. However, with newer models emerging in 2026, understanding the Forerunner 935’s strengths and limitations is critical for making an informed decision. This review evaluates its suitability for specific use cases, focusing on sensor accuracy, battery life, and compatibility with modern training ecosystems. Whether you’re a seasoned triathlete or a marathoner looking to refine your training strategy, this analysis provides objective insights into the device’s role in 2026’s wearable market.
Quick Overview
| Feature | Details |
|---|---|
| Device Category | Running and multisport GPS watch |
| Supported Tracking Metrics | Distance, pace, elevation, heart rate, cadence, swim stroke count |
| Sensors and Hardware | GPS, barometer, altimeter, electronic compass, wrist-based heart rate sensor |
| Battery Life | Up to 12 hours in GPS mode, 24 hours in smartwatch mode |
| Platform Compatibility | Garmin Connect app (iOS and Android) |
| Intended User Profiles | Runners, triathletes, multisport athletes |
| Durability Ratings | IPX8 water resistance, shock-resistant casing |
| Warranty and Software Support | 2-year limited warranty, firmware updates until 2025 |
The Garmin Forerunner 935’s combination of GPS precision, multisport capabilities, and water resistance makes it a strong contender for athletes requiring robust data collection. Its design balances functionality with comfort, though its 2018 release date means it may lack features found in newer models. These specifications position it as a reliable tool for users prioritizing long-term wearability and compatibility with existing training platforms.
Activity and Health Tracking Suitability
The Garmin Forerunner 935 is engineered to deliver comprehensive activity and health tracking for runners and multisport athletes. Its GPS capabilities provide precise route mapping and elevation data, essential for analyzing performance across varied terrains. The built-in barometer and altimeter offer insights into vertical movement, while the electronic compass aids navigation during off-road activities. For multisport users, the device’s ability to switch between running, cycling, and swimming modes ensures seamless data collection across disciplines. The wrist-based heart rate sensor delivers continuous monitoring, helping users assess cardiovascular strain and recovery needs. These features collectively support training optimization by offering actionable metrics for pacing, endurance, and fatigue management. However, the absence of newer biometric sensors like blood oxygen monitoring may limit its appeal for users seeking advanced health analytics.
GPS Accuracy and Route Analysis
The Forerunner 935’s GPS system is designed to deliver reliable tracking for outdoor activities, though its performance may vary in areas with limited satellite coverage. The device’s ability to record elevation changes and track elevation profiles provides valuable insights for hill training and race strategy. The altimeter and barometer work in tandem to offer real-time altitude readings, which can be critical for assessing performance on inclines. For runners training on trails or mountainous terrain, these features enable precise route analysis and elevation-based training adjustments. However, users should note that GPS accuracy can be affected by environmental factors such as dense foliage or urban canyons, which may impact route mapping reliability.
Multisport Mode Integration
The Forerunner 935’s multisport mode allows users to switch between running, cycling, and swimming sessions seamlessly, ensuring consistent data collection across disciplines. This feature is particularly beneficial for triathletes who need to track performance in multiple modes without switching devices. The device’s ability to automatically detect water-based activities, such as swimming, enhances convenience for multisport athletes. However, the lack of dedicated swim stroke analysis compared to newer models may limit its utility for swimmers seeking detailed biomechanical feedback. The integration of heart rate monitoring during cycling sessions also supports aerobic capacity assessment, though users should verify compatibility with third-party cycling apps for advanced analytics.
Sensor Accuracy and Data Reliability
The Forerunner 935’s sensor suite is designed to deliver consistent data across its intended use cases, though its performance may differ from newer models. The wrist-based heart rate sensor provides continuous monitoring, though its accuracy may be affected by factors such as wrist movement or sweat accumulation. The device’s GPS system offers reliable tracking for outdoor activities, though users should be aware of potential signal loss in areas with limited satellite coverage. The barometer and altimeter work in tandem to provide elevation data, which is useful for assessing vertical progress during runs or climbs. However, the absence of newer biometric sensors like blood oxygen monitoring may limit its appeal for users seeking advanced health analytics. The device’s compatibility with the Garmin Connect app ensures that data can be synchronized and analyzed for long-term training insights, though users should verify if their existing app version supports all features.
Heart Rate and Cadence Monitoring
The Forerunner 935’s wrist-based heart rate sensor is designed to provide continuous monitoring during workouts, though its accuracy may vary depending on user activity and environmental conditions. For runners, this feature enables real-time assessment of cardiovascular strain and recovery needs, helping to optimize training intensity. The cadence monitoring function offers insights into stride rate, which is critical for improving running efficiency. However, users should note that the heart rate sensor may require periodic calibration for maximum accuracy, particularly during high-intensity sessions. The device’s ability to track cadence during cycling sessions also supports aerobic capacity assessment, though users should verify compatibility with third-party cycling apps for advanced analytics.
Environmental Sensors and Their Use Cases
The Forerunner 935’s environmental sensors, including the barometer, altimeter, and electronic compass, are designed to enhance situational awareness and performance analysis. The barometer and altimeter work together to provide elevation data, which is useful for assessing vertical progress during runs or climbs. The electronic compass aids navigation during off-road activities, though its accuracy may be affected by magnetic interference. These sensors collectively support training optimization by offering actionable insights for pacing, endurance, and fatigue management. However, users should be aware that the device’s environmental sensors may not provide the same level of detail as newer models with advanced weather tracking capabilities.
Comfort, Fit, and Wearability for Long-Term Use
The Garmin Forerunner 935 is designed with comfort and wearability in mind, though its 2018 release date means it may lack some of the ergonomic refinements found in newer models. The device’s lightweight design (1.76 ounces) and round shape make it suitable for extended wear, though users may find the 1.2-inch screen slightly smaller than modern alternatives. The silicone band provides a snug fit, though its thickness may affect comfort during prolonged use. For runners, the watch’s ability to be worn during training sessions without causing irritation is a key advantage. However, the absence of a touchscreen interface may require users to rely on physical buttons for navigation, which could be less intuitive for some. The device’s compatibility with third-party bands allows for customization, though the original band may not be as breathable as newer options.
Band Options and Customization
The Forerunner 935’s original silicone band is designed for durability and sweat resistance, making it suitable for high-intensity training sessions. However, users may prefer alternative bands for improved comfort, particularly during long runs. The device’s compatibility with third-party bands allows for customization, though the original band may not be as breathable as newer options. For users seeking additional customization, the watch’s ability to pair with different band styles offers flexibility in adapting to different training environments. However, the lack of a touchscreen interface means that band adjustments must be made manually, which could be less convenient for some users.
Weight and Durability in Daily Use
The Forerunner 935’s lightweight design (1.76 ounces) and shock-resistant casing make it suitable for daily wear, though its 2018 release date means it may lack some of the durability features found in newer models. The device’s IPX8 water resistance rating ensures it can withstand immersion in water up to 50 meters, making it suitable for swimming and other water-based activities. However, users should be aware that prolonged exposure to extreme temperatures or harsh environments may affect the device’s longevity. The watch’s ability to be worn during training sessions without causing discomfort is a key advantage, though its design may not be as refined as newer models with advanced ergonomics.
Battery Life and Charging Expectations
The Garmin Forerunner 935 is engineered to deliver extended battery life, though its performance may vary depending on usage patterns. In GPS mode, the device offers up to 12 hours of battery life, which is suitable for long runs or multisport events. In smartwatch mode, the battery life extends to 24 hours, making it ideal for daily use without frequent recharging. The device’s battery capacity of 230 milliamp hours is relatively modest compared to newer models, though its efficiency in managing power consumption ensures consistent performance. Users should note that continuous GPS tracking or high-intensity workouts may drain the battery more quickly, requiring careful planning for extended use. The device’s charging time is not explicitly detailed, but its lithium-ion battery is designed for longevity, with a 2-year limited warranty covering potential power-related issues.
Power Management and Usage Scenarios
The Forerunner 935’s power management system is designed to optimize battery life across different usage scenarios. For runners, the device’s ability to conserve power during non-continuous GPS tracking is a key advantage, though users should be aware that features like heart rate monitoring and environmental sensors may increase power consumption. In smartwatch mode, the device’s battery life extends to 24 hours, making it suitable for daily use without frequent recharging. However, users should note that continuous GPS tracking or high-intensity workouts may drain the battery more quickly, requiring careful planning for extended use. The device’s charging time is not explicitly detailed, but its lithium-ion battery is designed for longevity, with a 2-year limited warranty covering potential power-related issues.
Device Compatibility and Ecosystem Integration
The Garmin Forerunner 935 is designed to integrate seamlessly with the Garmin Connect ecosystem, though its 2018 release date means it may lack some of the compatibility features found in newer models. The device’s ability to sync data with the Garmin Connect app ensures that users can access detailed analytics for training and health monitoring. However, users should verify if their existing app version supports all features, as updates to the app may introduce new functionalities. The device’s Bluetooth connectivity allows for pairing with smartphones, though its compatibility with newer operating systems may require firmware updates. For users seeking advanced integration with third-party apps, the Forerunner 935’s ability to sync with popular fitness platforms ensures broad compatibility, though its lack of newer features like blood oxygen monitoring may limit its appeal for users seeking advanced analytics.
App Integration and Data Sync
The Forerunner 935’s compatibility with the Garmin Connect app ensures that users can access detailed analytics for training and health monitoring. The device’s ability to sync data with the app provides a comprehensive overview of performance metrics, though users should verify if their existing app version supports all features. The device’s Bluetooth connectivity allows for pairing with smartphones, though its compatibility with newer operating systems may require firmware updates. For users seeking advanced integration with third-party apps, the Forerunner 935’s ability to sync with popular fitness platforms ensures broad compatibility, though its lack of newer features like blood oxygen monitoring may limit its appeal for users seeking advanced analytics.
Pros & Cons
Pros
- GPS Accuracy for Outdoor Tracking: The Forerunner 935’s GPS system provides reliable route mapping and elevation data, essential for analyzing performance across varied terrains.
- Multisport Mode Integration: The device’s ability to switch between running, cycling, and swimming modes ensures seamless data collection across disciplines.
- Water Resistance for Versatile Use: The IPX8 rating allows the watch to withstand immersion in water up to 5,000 feet, making it suitable for swimming and other water-based activities.
- Heart Rate Monitoring: The wrist-based heart rate sensor provides continuous monitoring, helping users assess cardiovascular strain and recovery needs.
- Battery Life for Extended Use: The device offers up to 12 hours of battery life in GPS mode, suitable for long runs or multisport events.
- Compatibility with Garmin Connect: The Forerunner 935 integrates seamlessly with the Garmin Connect app, providing detailed analytics for training and health monitoring.
Cons
- Limited Biometric Sensors: The absence of newer biometric sensors like blood oxygen monitoring may limit its appeal for users seeking advanced health analytics.
- Outdated Operating System: The device’s proprietary OS may lack features found in newer models, potentially affecting user experience.
- No Touchscreen Interface: The reliance on physical buttons for navigation may be less intuitive for some users.
- Battery Life Constraints: While the battery life is adequate for most use cases, continuous GPS tracking or high-intensity workouts may drain the battery more quickly.
- Compatibility with Newer Apps: Users should verify if their existing app version supports all features, as updates to the app may introduce new functionalities.
Final Verdict: Who This Wearable Is Best For (and Who Should Skip It)
The Garmin Forerunner 935 is best suited for runners and multisport athletes who prioritize GPS accuracy, multisport tracking, and long-term wearability. Its robust sensor suite and compatibility with the Garmin Connect app make it a reliable tool for users who need detailed performance analytics across disciplines. However, its 2018 release date means it may lack features found in newer models, such as blood oxygen monitoring and advanced biometric tracking. For users seeking the latest innovations in wearable technology, the Forerunner 935 may not be the optimal choice. Instead, it is ideal for athletes who value reliability, compatibility with existing training platforms, and a focus on core running and multisport metrics. Those looking for advanced health analytics or newer features should consider more recent models in the Garmin lineup or competing brands with updated capabilities.
Frequently Asked Questions (FAQs)
Does the Garmin Forerunner 935 track elevation changes accurately?
The Forerunner 935 uses a built-in barometer and altimeter to provide elevation data, which is useful for analyzing vertical progress during runs or climbs. However, its accuracy may vary in areas with limited satellite coverage or extreme weather conditions.
Can the Forerunner 935 be used for swimming?
The Forerunner 935 is rated for IPX8 water resistance, allowing it to withstand immersion in water up to 50 meters. This makes it suitable for swimming and other water-based activities, though it is not designed for deep-sea diving or prolonged underwater use.
How long does the battery last in GPS mode?
The Forerunner 935 offers up to 12 hours of battery life in GPS mode, which is sufficient for long runs or multisport events. In smartwatch mode, the battery life extends to 24 hours, though continuous GPS tracking may drain the battery more quickly.
Is the Forerunner 935 compatible with the latest Garmin Connect app?
The Forerunner 935 is compatible with the Garmin Connect app, though users should verify if their existing app version supports all features. Updates to the app may introduce new functionalities not available on older models.
Can the Forerunner 935 track heart rate during cycling sessions?
Yes, the Forerunner 935’s wrist-based heart rate sensor provides continuous monitoring during cycling sessions, helping users assess cardiovascular strain and recovery needs. However, for advanced cycling analytics, users may need to pair the device with third-party apps.
What are the limitations of the Forerunner 935 compared to newer models?
The Forerunner 935 lacks newer biometric sensors like blood oxygen monitoring and may have an outdated operating system compared to newer models. Its reliance on physical buttons for navigation and limited compatibility with the latest apps may also affect user experience.
Is the Forerunner 935 suitable for beginners?
The Forerunner 935 is well-suited for beginners due to its user-friendly interface, reliable GPS tracking, and compatibility with the Garmin Connect app. However, its advanced features may be overwhelming for users seeking simpler tracking options.
Can the Forerunner 935 be customized with third-party bands?
Yes, the Forerunner 935 is compatible with third-party bands, allowing users to customize the watch for different training environments. However, the original silicone band may not be as breathable as newer options for extended wear.
