Global Navigation Satellite System (GNSS) technology has long been the backbone of modern surveying, mapping, and construction workflows. For decades, high-precision positioning was dominated by established manufacturers whose hardware was large, specialized, and often expensive. Today, however, a new wave of GNSS devices is emerging. Many of them are dramatically smaller, more affordable, and marketed with the same centimeter-level accuracy claims as traditional survey equipment.
This shift raises an interesting question for the geospatial industry: are these compact systems truly comparable to established solutions, or are they redefining how precision positioning is delivered?
A New Generation of GNSS Hardware
Several companies have entered the GNSS space in recent years with products designed to be lighter, simpler, and easier to integrate into modern field workflows. Devices from companies like Emlid, ArduSimple, and u-blox have gained attention for delivering RTK-capable positioning in compact, mobile-friendly formats.
These systems often rely on modular GNSS chips and multi-band receivers capable of tracking signals from multiple constellations such as GPS, GLONASS, Galileo, and BeiDou. Advances in hardware and satellite availability have made it possible for even small modules to process hundreds of satellite channels simultaneously. Septentrio, for example, produces compact multi-band GNSS receiver modules capable of centimeter-level RTK positioning while supporting several global satellite systems.
At the same time, open hardware platforms and developer-focused kits have lowered the barrier to entry. Boards and small receivers built around these modules are increasingly used in drones, robotics, and autonomous systems, expanding GNSS beyond traditional surveying workflows.
Challenging Established Survey Equipment
While compact GNSS solutions are growing in popularity, the traditional survey equipment market is still dominated by established brands such as Leica Geosystems, Trimble Inc., and Topcon Positioning Systems. These companies have spent decades developing integrated hardware, proprietary correction systems, and rugged field equipment designed for demanding environments.
The newer entrants often focus on portability and affordability. Some receivers can fit in the palm of a hand or attach directly to a smartphone or tablet, something that would have been difficult to imagine in traditional survey setups only a decade ago.
Despite their size, many of these devices advertise centimeter-level RTK accuracy, similar to what professional survey rovers have delivered for years. Modern multi-frequency receivers can process signals from several satellite constellations simultaneously and achieve high positioning accuracy when RTK corrections are applied.
But accuracy claims on paper do not always tell the full story. Survey-grade systems often include advanced antenna designs, signal filtering, calibration procedures, and robust field software ecosystems. The difference may lie not only in raw positioning capability but also in reliability, repeatability, and workflow integration.
A Changing GNSS Landscape
Rather than replacing traditional GNSS systems outright, these new compact solutions may represent a broader expansion of the positioning ecosystem. Smaller receivers are enabling precision positioning in applications that previously relied on consumer-grade GPS, including drone mapping, utility construction, asset inspections, and mobile GIS workflows.
At the same time, the growing number of GNSS vendors raises interesting questions for the industry. Will smaller, modular receivers eventually challenge established survey hardware? Or will the market split into different tiers of positioning technology optimized for different workflows?
What is clear is that GNSS technology is evolving quickly. As hardware continues to shrink and new players enter the market, the conversation around accuracy, reliability, and usability is likely to become even more important for geospatial professionals.
