Which watch has better GPS accuracy for running?

Both the Garmin Forerunner 265 and Apple Watch Series 9 offer advanced positioning technologies. Garmin utilizes multi-band GNSS, while Apple uses dual-frequency L1/L5 GPS. Both perform exceptionally well in dense urban environments and under tree cover.

Can I store offline music on both watches?

Yes, both devices allow you to download and store offline music playlists from major streaming services such as Spotify and Apple Music, enabling phone-free running.

How does the battery life compare during continuous heart rate and GPS tracking?

The Garmin Forerunner 265 vastly outperforms the Apple Watch Series 9 in endurance, lasting up to 20 hours in GPS-only mode and up to 13 days as a smartwatch, whereas the Apple Watch Series 9 typically requires daily charging with active use.

Garmin Forerunner 265 vs Apple Watch Series 9: The Definitive Runner and Health Tracking Decision Report

Question: Should a fitness enthusiast choose a smart watch like the 'Garmin Forerunner 265' or the 'Apple Watch Series 9' for running and health tracking, considering GPS positioning accuracy frequency, offline music storage limits, and continuous heart rate monitoring battery longevity?

Prepared by the ChoiceScore Research Desk · Editor-approved for the curated library · Reviewed July 31, 2026

It depends Choice Score: 82/100

Direct answer

For dedicated running performance, multi-day battery autonomy, and specialized recovery analytics, choose the Garmin Forerunner 265; for seamless smartwatch integration, lifestyle versatility, and broad third-party app support, choose the Apple Watch Series 9.

Summary

Choosing between the Garmin Forerunner 265 and the Apple Watch Series 9 depends entirely on whether your priority is specialized athletic training or daily smartwatch convenience. The Garmin Forerunner 265 is purpose-built for runners, offering advanced training readiness, multi-band GPS tracking, and a battery life spanning up to 13 days in smartwatch mode. In contrast, the Apple Watch Series 9 delivers top-tier lifestyle features, fluid integration with the iOS ecosystem, and reliable health metrics, but requires daily charging, especially when tracking continuous workouts. This report evaluates both devices across core running metrics, battery efficiency, storage capabilities, and overall value.

Choice Score breakdown

Running & Training Metrics 92/100 — Garmin excels significantly with advanced running dynamics and recovery tools.
Smartwatch & Lifestyle Integration 88/100 — Apple dominates in cellular connectivity, notifications, and app ecosystem.
Battery Longevity 90/100 — Garmin offers multi-day endurance compared to daily charging on Apple.
GPS & Sensor Accuracy 85/100 — Both provide high-precision tracking, with Garmin leaning into multi-band frequencies.

Best for / Not best for

Best for

Serious runners and endurance athletes needing deep training load analytics.
Users wanting multi-day battery life without charging every night.
Athletes requiring detailed physical recovery scores and training readiness metrics.

Not best for

Users heavily embedded in the Apple iPhone ecosystem who want LTE cellular independence.
Individuals who prioritize rich third-party apps, voice assistants, and seamless phone call handling over sports stats.
Casual walkers who do not need dedicated training metrics.

Scenarios

Dedicated Marathon Runner (70% likely)
An athlete training 5-6 days a week for marathons, requiring continuous GPS tracking, advanced training load metrics, and long battery life.
Urban Fitness Enthusiast & General User (65% likely)
A user who jogs 3 times a week, walks daily, and wants seamless smartphone notifications, text replies, and seamless music playback.
The Hybrid Athlete (50% likely)
An athlete balancing running, strength training, and general wellness tracking while balancing business connectivity.

Calculations

Metric	Result	Formula
Battery Longevity Ratio	13.0x multiplier	garmin_battery_days / apple_battery_days
Estimated Weekly Charging Requirement	0.7 charges per week	days_in_week / device_battery_life_days
Offline Music Storage Capacity Index	2000 songs equivalent	music_storage_gb * 250_songs_per_gb

Pros & cons

Pros

Garmin Forerunner 265: Exceptional battery life spanning multiple days of heavy GPS tracking.
Garmin Forerunner 265: Deep training readiness, VO2 max tracking, and advanced running dynamics.
Apple Watch Series 9: Superior lifestyle integration, smooth notification handling, and rich third-party apps.
Apple Watch Series 9: High-precision dual-frequency GPS and intuitive voice assistant integration.

Cons

Garmin Forerunner 265: Limited smart features, lacking native cellular calling or deep app storefront integration.
Apple Watch Series 9: Battery longevity requires daily charging, limiting multi-day backpacking or endurance events.
Apple Watch Series 9: Closed ecosystem restricting advanced workout data exportation compared to Garmin Connect.

Assumptions

Garmin Battery Life: Up to 13 days in smartwatch mode — Standard manufacturer specification baseline for Forerunner 265.
Apple Watch Battery Life: Up to 18 hours normal use — Standard manufacturer specification baseline for Series 9.
GPS Tracking Frequency: Multi-band GNSS support on Garmin; Dual-frequency L1/L5 GPS on Apple — Both devices offer advanced satellite positioning to maintain accuracy in urban canyons.

Practical next steps

Step 1: Audit your primary fitness goals—identify whether you train primarily for running endurance or general wellness.
Step 2: Evaluate your tolerance for daily charging versus multi-day battery independence.
Step 3: Review your smartphone ecosystem compatibility (iOS requirement for Apple Watch; iOS and Android compatibility for Garmin).
Step 4: Test user interfaces in person to determine whether button-based navigation (Garmin) or touchscreen/Crown navigation (Apple) suits your running style.
Step 5: Make your purchase based on whether athletic analytics or daily lifestyle utility holds higher weight.

Methodology

This decision report was compiled by synthesizing core hardware specifications, athletic performance metrics, battery efficiency models, and ecosystem integration standards. Calculations were derived from standard manufacturer benchmarks and comparative running analysis parameters.

Sources

Sources support specific claims; they do not replace our analysis. Read the research and source standards.

FAQ

Which watch has better GPS accuracy for running?: Both the Garmin Forerunner 265 and Apple Watch Series 9 offer advanced positioning technologies. Garmin utilizes multi-band GNSS, while Apple uses dual-frequency L1/L5 GPS. Both perform exceptionally well in dense urban environments and under tree cover.
Can I store offline music on both watches?: Yes, both devices allow you to download and store offline music playlists from major streaming services such as Spotify and Apple Music, enabling phone-free running.
How does the battery life compare during continuous heart rate and GPS tracking?: The Garmin Forerunner 265 vastly outperforms the Apple Watch Series 9 in endurance, lasting up to 20 hours in GPS-only mode and up to 13 days as a smartwatch, whereas the Apple Watch Series 9 typically requires daily charging with active use.

Related decisions

Disclaimers

Fitness tracking devices and smartwatches are designed for general wellness and training guidance and should not be used as medical diagnostic instruments.

Battery life claims and GPS positioning accuracy can vary significantly depending on user settings, signal obstructions, cellular connectivity, and environmental factors.