Amazfit Cheetah Lightweight Running Smart Watch with Dual-Band GPS, Route Navigation & Offline Maps, Personalized Training Plans, HR & SpO2, Music, 5

Amazfit's dual-band circularly-polarized GPS antenna technology, named MaxTrack, enables this GPS smartwatch to pick up almost 100 percent of satellite signals. This technology reduces multi-path interference in order to track your position with the maximum amount of accuracy, even if you're running in dense cities with tall buildings or parks with high trees.