Comet SS-460SBNMO Dual-Band Mobile vs Retevis 7.2dBi High-Gain GMRS Mobile

The Comet SS-460SBNMO is the clear winner for dual-band mobile use.

The fundamental difference is electrical length. The Comet provides realistic quarter-wave performance on VHF and genuine 5/8-wave performance on UHF, both proven antenna designs. The Retevis claims 7.2 dBi gain, but without disclosed electrical length data and with a lower overall score despite higher price, that figure is almost certainly overstated. High-gain claims on budget mobile antennas rarely survive scrutiny, and the Retevis's score of 52 versus the Comet's 64 reflects this.

The Comet costs 32 percent less and delivers honest, predictable performance across both bands. Its quarter-wave VHF section is honest about what to expect, and the 5/8-wave UHF element offers legitimate gain where it matters. The Retevis might appeal to GMRS-only operators willing to gamble on an unverified claim, though even then the lower score suggests underwhelming real-world results.

Buy the Comet SS-460SBNMO if you want dependable dual-band performance with transparent specs. Skip the Retevis unless you have specific GMRS requirements and don't mind paying more for unsubstantiated claims.