Do handheld GPS devices need cell service?

No — GPS devices receive satellite signals directly and work anywhere on Earth. No cell towers, WiFi, or data plans needed. Some models offer optional satellite communication (inReach) for SOS and messaging.

How accurate are handheld GPS devices?

Modern multi-band GNSS devices are accurate to 6-10 feet in open sky. Under heavy canopy, 15-30 feet. Multi-band models maintain better accuracy in challenging environments than single-band units.

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