Baofeng AR-5RM vs Baofeng UV-21R

The Baofeng UV-21R is the clear winner in this matchup. Both radios are budget-friendly options priced within a dollar of each other, but the UV-21R demonstrates measurable advantages that justify its selection.

The single most important differentiator is the UV-21R's documented 6-watt transmit power versus the AR-5RM's unknown specifications. In amateur radio, confirmed TX power is critical for reliable communications, and having concrete specs eliminates guesswork. This advantage is reinforced by the UV-21R's higher overall score of 71 versus 65, suggesting better real-world performance across testing parameters.

Both radios lack DMR, APRS, and GPS capability, and both support CHIRP programming, so feature differentiation is minimal. The weight difference remains unknown for both units, so that cannot influence the decision.

The AR-5RM might appeal only to buyers who specifically need a radio that hasn't been fully tested and characterized, which represents an unusual use case. The UV-21R should be purchased by anyone seeking a reliable budget handheld with confirmed specifications.

For the money, the Baofeng UV-21R is the smarter choice. Its documented power output and superior review score make it the safer investment for amateur radio operators at any experience level.