Real-World Half-Marathon Test: How the Two Watches Were Tested
To move beyond spec sheets and lab tests, the Garmin Forerunner 970 and an AmazFit running watch were worn simultaneously during the Brooklyn Half-Marathon. The runner started both devices on the same course, under identical conditions, and then compared the results to the official chip time. This head-to-head half-marathon test allowed direct comparison of fitness watch accuracy in a real race environment, including how each device handled the chaos of the start and the long grind of a net-downhill second half. The setup also highlighted practical realities of race day performance, like how easily you can read your current pace mid-stride and how quickly each watch responds when you raise your wrist. By holding everything else constant—same runner, same course, same weather—any differences in race tracking accuracy, usability, and post-race analysis could be attributed to the watches themselves rather than external factors.
Fitness Watch Accuracy: Distance, Pace, and Heart Rate Compared
On core race metrics, this running watch comparison turned out surprisingly close. The official half-marathon time was 2:04:49 at a 9:32 per mile pace. The AmazFit running watch logged 13.23 miles in 2:04:26 at a 9:24 per mile pace, while the Garmin Forerunner 970 recorded 13.22 miles in 2:04:20, also at 9:24 per mile. Given a slightly botched start and the usual congestion at the line, these results fall well within a reasonable margin of error for GPS-based devices. Both watches also reported identical heart rate stats: an average of 166 bpm and a max of 192 bpm. For runners focused on fitness watch accuracy in distance, pace, and heart rate, there was effectively a tie. Either device will give you trustworthy race day performance data for tracking splits, monitoring exertion, and comparing your effort to the official result.
Race Day Experience: Display, Responsiveness, and Comfort
While the raw numbers were almost identical, the race day experience revealed subtle differences. The Garmin Forerunner 970’s display was easier to read at a glance, which matters when you are breathing hard and trying to check pace without breaking form. Its raise-to-wake unlock behavior was also more responsive, reducing the risk of missing a split because the screen stayed dark a moment too long. The AmazFit running watch still delivered strong race day performance and was notably lightweight, a real advantage over 13.1 miles when even small comfort issues can become distracting. Wearing both watches also underscored how design and ergonomics influence performance: a clearer display and quicker wake can make the difference between adjusting pace in real time and waiting until post-race analysis. For extended efforts, runners should consider not just what data a watch records, but how quickly and comfortably they can access it mid-race.
Data Ecosystems and Advanced Metrics for Competitive Runners
Where the Garmin Forerunner 970 begins to separate itself is in its broader ecosystem and depth of metrics. Paired with Garmin’s Race Predictor and course- and weather-specific tools, the watch can provide race time predictions based on VO2 max, training history, and environmental factors when a race is scheduled in Garmin Connect. In testing, Garmin’s predictor skewed optimistic, effectively modeling an ideal race assuming perfect pacing and conditions. Strava’s Performance Predictions, used alongside these devices, tended to be more conservative, anchored heavily to historical performance and recent training load. Post-race, Garmin Connect offers rich running dynamics and advanced analytics, especially when paired with accessories like an HRM chest strap, giving data-hungry athletes deeper insight into stride efficiency and fatigue. The AmazFit running watch, by contrast, proved to be a reliable racing tool but with a comparatively leaner ecosystem, making it better suited to runners who want solid stats without needing extensive, highly granular analysis.
Value for Competitive Runners: Premium Ecosystem vs. Affordable Performance
Price is where the value proposition clearly diverges. The Garmin Forerunner 970 is listed at USD 749.99 (approx. RM3,450), while the Amazfit Cheetah 2 Pro comes in at USD 449.99 (approx. RM2,070). For that premium, Garmin offers a brighter, more readable display, faster wrist-raise responsiveness, and a deep ecosystem of training tools, race predictors, and advanced running dynamics that appeal to data-focused competitors. The AmazFit running watch, however, matched the Garmin on GPS accuracy, pace, distance, and heart rate during a real half-marathon, proving that its lower cost does not mean compromised race day performance. For serious runners on a budget or those who prioritize core metrics over advanced analytics, AmazFit delivers strong value. Competitive athletes who lean heavily on predictive tools, detailed post-race analysis, and a mature platform may find the Garmin Forerunner 970’s higher price justified by its long-term training and performance benefits.