Cearvol Diamond X1 vs Rexton Reach R-Li T80 at Costco

The Cearvol Diamond X1 is a budget-priced OTC hearing aid that earned a B grade with a SoundScore of 3.7/5 in our lab testing, placing it in the top 45% of OTC devices. At $199, it represents an accessible entry point for those exploring hearing amplification. The Diamond X1's standout performance is in music streaming, scoring 4.1/5—a strong result that sits 2.18 points above the OTC category average. This makes it notably capable for users who prioritize audio entertainment through their hearing devices. Feedback handling is also excellent at 4.5/5, meaning users should experience minimal whistling during normal use. However, speech performance presents limitations. Speech in quiet scores a mixed 2.8/5, and speech in noise registers at 1.7/5. While both metrics technically sit above category averages (+0.03 and +0.22 points respectively), they remain low in absolute terms—important context for anyone prioritizing conversation clarity. Own-voice comfort is another weakness, scoring 1.7/5, which is 0.81 points below the category average and may affect how natural users sound to themselves. The Diamond X1 is best suited for budget-conscious consumers who value music streaming quality and aren't heavily reliant on challenging listening environments. Those who prioritize speech understanding in noise or natural own-voice perception may want to consider alternatives in this price range, such as the higher-scoring Elehear Beyond or Apple AirPods Pro 2.

The Rexton Reach R-Li T80, available at Costco for $1,500, is a behind-the-ear prescription hearing aid that earned an A grade with a SoundScore of 4.6/5 in our lab testing. This places it in the top 28% of the 39 prescription hearing aids we've tested and earned it our 2024 Expert's Choice Award. In our testing, this device demonstrated solid speech clarity performance. Speech in quiet scored 3.9/5, which is 0.46 points above the category average. Speech in noise measured 2.5/5—above the category average by 0.39 points, though still mixed in absolute terms. Own-voice comfort was a particular strength at 3.6/5, scoring 0.90 points above the category average, which may appeal to users sensitive to how their own voice sounds while wearing hearing aids. Feedback handling proved excellent at 4.8/5, just above the category average of 4.72/5. Music streaming scored 2.7/5, which is 0.06 points below the category average—a minor gap but worth noting for users who frequently stream audio content. The Reach R-Li T80 features rechargeable batteries and supports both iPhone and Android streaming with hands-free capability. At its price point, it outperforms same-priced competitors like the Jabra Enhance Pro 20 at Costco (4.01/5) and the Orka Two (4.00/5). This device is well-suited for users seeking strong overall sound performance with excellent feedback stability and above-average speech clarity through the Costco channel.