Choosing a Running Watch: Comparing Garmin, COROS, and Apple Watch for Runners' Needs

Introduction

In Taiwan, at nearly every major road race, runners on the starting line are almost uniformly wearing GPS running watches. From beginners to elite athletes, a good running watch can log training data, analyze running efficiency, and even offer science-based training recommendations. Today, three mainstream brands dominate the market — Garmin, COROS, and Apple Watch — each with its own loyal following, and each with its own strengths and weaknesses.

Core Comparison of the Three Brands

Garmin: The Gold Standard for Runner Metrics

Garmin currently offers the most complete feature set among running watch brands, and its Forerunner series has long been the top choice for serious runners:

• Running dynamics metrics: Vertical oscillation, ground contact time balance, stride length, cadence, and more — precisely pinpointing form issues
• Training recommendations: Automatically suggests the day’s training intensity based on daily HRV status and training load
• Advanced navigation: Higher-end models (such as the Fenix series) come with built-in topographic maps, ideal for mountain or trail training
• Taiwan ecosystem: Garmin Taiwan offers a complete Chinese-language interface and local customer service, with a fully featured Connect App

Best suited for: Serious runners chasing a PB, marathon runners following a structured training plan, and anyone who needs detailed training analysis

COROS: The Lightweight Champion for Long Distances

COROS is a challenger brand that has risen rapidly in recent years, earning strong praise in the ultramarathon community for its extreme lightness and exceptionally long battery life:

• The PACE 3 weighs just 30g: Barely noticeable even after hours of wear, making it especially well-suited for runners tackling half marathons and beyond
• Battery life: Up to 38 hours in GPS mode, with the PACE Pro exceeding 40 hours — no need to worry about running out of power on long distances
• Training metrics: COROS’s “EvoLab” running fitness evaluation system uses its own distinct logic — not as granular as Garmin’s, but intuitive and easy to understand
• Pricing advantage: For comparable positioning and features, COROS is typically priced 20–30% lower than Garmin

Best suited for: Ultramarathon runners, trail and mountain running enthusiasts, and budget-conscious runners who need long-lasting battery life

Apple Watch: The Best Entry Point for Non-Runners

Strictly speaking, the Apple Watch is not a dedicated running watch, but it offers advantages that are irreplaceable in their own right:

• Best daily-life integration: LINE notifications, Apple Pay, Siri, and fitness tracking all seamlessly integrated — ideal for urban commuters
• Comprehensive health monitoring: Full-featured blood oxygen, ECG, and sleep tracking that go well beyond pure running needs
• Limited running functionality: Lacks training load analysis, gait metrics, and the advanced features needed for long-distance ultramarathons
• Battery life is its Achilles’ heel: May run out of power in the later stages of a full marathon, so it’s not recommended as the primary device for marathon race day

Best suited for: Casual runners focused mainly on health management, occasional runners covering 5–10km, and urban runners who value lifestyle integration

Special Considerations for Taiwan

• Summer heat: Taiwan summer temperatures can exceed 35°C, and some optical heart rate sensors lose accuracy under heavy sweating in high heat; Garmin’s and COROS’s sensors tend to be relatively more stable
• Mountain and trail terrain: Taiwan has extensive mountainous terrain, so for trail training needs, the contour map features on the Garmin Fenix series or COROS VERTIX are highly valuable
• After-sales service: Garmin has full-fledged service centers in Taiwan, COROS is serviced through its distributor, and Apple Watch is supported through Apple Store or authorized service providers

Practical Tips

• Before buying, clarify your primary use case: if running training accounts for more than 80% of your usage, prioritize a dedicated running watch series; if you need everyday smartwatch functionality, the Apple Watch is a better fit
• Don’t be dazzled by the number of features: what matters is the metrics you’ll actually use. Beginners only need pace, heart rate, and distance — the advanced features of high-end running watches only become meaningful when paired with a structured training plan
• Battery life exceeding 1.5 times your longest training session is a baseline requirement

Conclusion

There is no single “best” running watch — only the one that’s best for you. Garmin is the top choice for those pursuing the ultimate in training analysis, COROS reigns supreme for lightweight long-distance running, and Apple Watch is the best solution for integrating everyday life with fitness. Before you buy, it’s worth clearly defining your running goals and budget so you can make the decision that’s right for you.

Related Reading

• GPS 跑錶選購完全指南：Garmin vs COROS vs Apple Watch 深度比較
• GPS 跑步手錶選購：Garmin vs Apple Watch vs COROS 功能比較
• 路跑 GPS 運動錶選購指南：Garmin vs COROS vs Polar 功能全面比較
• Apple Watch vs Garmin 路跑功能實戰比較：哪款手錶更適合台灣跑者？