How does the dual-frequency GPS in the Apple Watch Ultra 2 compare to other smartwatches

Comparison of Dual-Frequency GPS

1. Accuracy in Challenging Environments:
- The Apple Watch Ultra 2 utilizes both the L1 and L5 frequency bands. This dual-band capability is designed to enhance accuracy, especially in urban settings with tall buildings and in wooded areas, where traditional L1-only GPS can struggle. However, some users have reported that the Ultra 2's GPS accuracy can still be affected in these environments, sometimes yielding less precise results compared to competitors like the Suunto Vertical and various Garmin models (e.g., Epix 2, Forerunner 965) that have demonstrated superior GPS performance under similar conditions[1][2].

2. Real-World Performance:
- In practical tests, the Apple Watch Ultra 2 has shown good GPS accuracy overall, but it may not consistently outperform other brands. For instance, while it ranks highly among smartwatches, it has been noted that only the Suunto Vertical scored higher in GPS accuracy tests. Other brands like Garmin and Coros have similar performance levels across various conditions[1].

3. Dependence on Map Data:
- The Apple Watch Ultra 2's GPS functionality is also influenced by Apple Maps data. Users have observed that if the underlying map data is inaccurate or poorly detailed, the GPS tracking can suffer as a result. This reliance on map data can lead to discrepancies in tracking accuracy compared to devices that may not rely as heavily on external data for smoothing GPS traces[2][3].

4. User Experience:
- Some users have expressed concerns about the Ultra 2's GPS performance, noting issues such as erratic location readings and inaccuracies during activities. In contrast, many Garmin devices are often cited for their reliability and accuracy in similar scenarios, especially for dedicated outdoor activities like trail running and hiking[1][2].

Conclusion

While the dual-frequency GPS in the Apple Watch Ultra 2 provides enhanced capabilities compared to single-band GPS systems, its real-world performance can vary. It often matches or falls short of the accuracy provided by competing brands like Garmin and Suunto, particularly in challenging environments. Users seeking the utmost precision in GPS tracking may still find dedicated sports watches to be superior choices.