ABBREE AR-771C GMRS (SMA-Female) vs Bingfu 42.5-inch Foldable Tactical (SMA-Female)

The AR-771C is the clear winner for GMRS use.

The most important differentiator is electrical length at your operating frequency. The AR-771C is a 5/8 wave antenna at 465 MHz, which matches reality with a realistic 3.1 dBi gain. The Bingfu's multi-wavelength design creates performance problems: it performs reasonably on VHF at 2.6 dBi but drops to a negative 1.0 dBi on UHF due to an unfavorable 1.57 wavelength resonance. The Bingfu's claimed 3.5 dBi is overstated and unsupported by its electrical length.

Handheld operators running primarily GMRS should buy the AR-771C. Those needing a dual-band antenna for both VHF and UHF repeaters might consider the Bingfu only if VHF is the priority, understanding its UHF performance is degraded.

Get the AR-771C. It costs less, performs better on GMRS, and delivers honest performance matching its physical design. The Bingfu's folding convenience and higher score don't overcome the reality that it's a compromised multiband design that works well on neither band when you examine electrical length. For $10 less, the AR-771C gives you straightforward, predictable performance.