81% was the Cheetah 2 Ultra’s overall GPS score on a standardized 10-mile route, a clear improvement on the Cheetah 2 Pro’s 73% but still behind Garmin’s Forerunner 970 at 92%.
The test was run during a lightning storm, and the reviewer said the dual-frequency watch could likely reach about 85% in better conditions, though not the top-tier scores posted by Garmin.
91% in easy sections, 81% in medium and 69% in hard segments showed the Ultra handled routine tracking well but struggled near tall buildings, in a narrow alley and through a long tunnel.
Amazfit’s claimed dead-reckoning sensor fusion did not work in the tunnel during this run, though the reviewer said other bike-and-run tests broadly support the 81% result.
For normal use, the verdict was that the Cheetah 2 Ultra gets the basics right and is sufficiently accurate, with any further gains likely depending on chipset tuning rather than hardware changes.