Raw precision is only part of the story. GPS + GLONASS provides a number of significant practical advantages over GPS alone, mainly due to the increased number of satellites.
Performance in urban canyons or heavily wooded areas is greatly improved, as there's a much better chance of the receiver seeing enough satellites. Likewise, startup times can be much quicker.
An intelligent receiver using GLONASS only when needed could have dramatically better real-world performance with only a minor increase in battery consumption.
We're inevitably going to see GLONASS everywhere due to the Russian import duty, but it's a real boon to most ordinary GNSS users, for whom the main limit on practical precision is being able to see enough satellites. This is likely to become increasingly important as the existing GPS satellites reach end-of-life.
Performance in urban canyons or heavily wooded areas is greatly improved, as there's a much better chance of the receiver seeing enough satellites. Likewise, startup times can be much quicker.
An intelligent receiver using GLONASS only when needed could have dramatically better real-world performance with only a minor increase in battery consumption.
We're inevitably going to see GLONASS everywhere due to the Russian import duty, but it's a real boon to most ordinary GNSS users, for whom the main limit on practical precision is being able to see enough satellites. This is likely to become increasingly important as the existing GPS satellites reach end-of-life.