Check out our comparison of the Fortell AI Hearing Aids vs Lexie B3 Powered by Bose. Listen to audio samples and see how the two hearing aids differ in terms of sound performance, features, accessories, and more.
Compare comprehensive test results and expert opinions.
Fortell AI Hearing Aids are rechargeable RIC devices that use Spatial AI to separate speech from background noise in real time. The new AI 2.0 software upgrade retrains that system on more real-world sound data to improve speech clarity in noise while maintaining natural-sounding voices.
Read full reviewLexie B3 OTC hearing aids deliver Powered by Bose sound, Bluetooth streaming, IP68 durability, and app-based personalization for clearer conversations.
Read full reviewFortell AI Hearing Aids achieved a SoundScore of 6.0/5 and a SoundGrade of A in HearAdvisor lab testing. The Prescription Hearing Aid category average SoundScore was 4.19/5.
Lexie B3 achieved a SoundScore of 4.7/5 and a SoundGrade of A in HearAdvisor lab testing. It ranked #1 of 65 OTC Hearing Aid devices tested. The OTC Hearing Aid category average SoundScore was 3.68/5.
Fortell AI Hearing Aids feel well built, though their IP54 rating offers less water and debris resistance than many prescription hearing aids, which commonly carry a higher IP68 rating. As with any hearing aid, regular cleaning and proper care will help keep them performing well over time.
Lexie B3 hearing aids offer excellent protection from moisture and debris with an IP68 rating. The portable charge case also appears well built and should easily hold up to daily use.
Fortell states that its hearing aids last around 24 hours per charge in the default All-day AI mode, so they should easily last a full day even if you rely heavily on the more processing-intensive “All voices” or “Front voices” programs.
B3 offer an impressive 32 hour battery life per charge, which is more than many products on the market. The portable charging case also offers up to 3 additional charges before needing to be plugged in. As such, we found the overall battery offering excellent.
While Fortell AI Hearing Aids support hands-free calling and audio streaming on iOS devices, they currently do not support Android, and the company has not announced a timeline for Android compatibility.
Lexie B3 are Bluetooth compatible with both iOS and Android devices, allowing for wireless app control, audio streaming, and hands-free calling.
The Fortell app offers useful controls for volume, a 3-band EQ, and several AI listening modes. While I found it easy to use and sufficiently flexible, it is more limited than many competing apps, with no tinnitus features, health tracking, or other extras.
The Lexie app has a user-friendly interface and modern, appealing design. It includes practical features like volume control and a tone balance. We especially liked that B3 now includes a hearing assessment to better personalize the audio performance to your hearing.
I found Fortell AI Hearing Aids comfortable and similar in fit to other prescription receiver-in-canal hearing aids. Although the body is slightly larger than many competing devices, it should fit comfortably behind most ears without interfering with glasses or causing retention issues. Your provider can help you fine-tune your fit in office.
I found B3 very comfortable, and the flexible earwires easily molded to my face which helped provide good retention and speaker placement in my ears.
Fortell AI Hearing Aids use a familiar receiver-in-canal design with a slightly larger body than many other "micro" prescription devices. However, they remain fairly discreet behind the ear. Several colors are currently available with more to come later in 2026.
B3 are relatively small and have a modern receiver-in-canal design. One potential downside is that they are currently only available in a mat grey color.
Fortell AI Hearing Aids has a value score of 3.2/5 based on lab performance and public display price.
Lexie B3 has a value score of 4.5/5 based on lab performance and public display price.
I found Fortell AI Hearing Aids easy to use and comparable to other receiver-in-canal devices. The app, charging case, and physical buttons all worked well, making day-to-day handling straightforward and giving me easy access to the controls I needed.
I did not run into any issues while using B3 or the Lexie mobile app. First-time users may need some practice to get accustomed to inserting the receiver-in-ear style properly.
Fortell AI Hearing Aids are professionally fit and supported, but access is currently more limited than with major prescription hearing aid brands. In-person care is available in only a handful of major metropolitan areas, though additional clinics are planned. Fortell also offers fully remote care across 30 states, which expands access considerably for those comfortable with telehealth.
B3 are over-the-counter hearing aids and are designed to be fit without a hearing care provider. However, Lexie offers remote care which includes both technical and hearing support from their team of Lexie Experts for the lifetime of your hearing aid.
Listen to direct output recordings from our acoustic test lab.
HearingTracker partners with HearAdvisor to provide recordings and performance data from an acoustic laboratory that follows standard scientific procedures. All hearing aids are fitted and performance-tested for mild sloping to moderate hearing loss. All audio samples cutoff above 10kHz.
Compatible accessories for each hearing aid
Portable charging case with an integrated lithium-ion power bank, rated IP54 and charged over USB-C. Holds 72+ hours of additional listening, roughly three full recharges of a pair, and reaches full charge in 8 hours. Three separate 3-LED arrays report the left aid, the right aid and the case itself; the case button also drives pairing and reset.
The Lexie B3 comes with a rechargeable storage case that charges via USB-C and provides about three extra full charges, for up to 5 days of total runtime. The hearing aids take about 3 hours to recharge and can run up to 32 hours per charge without streaming. Magnetic seating and status lights help confirm the aids are placed correctly and charging.
iPhone companion app for Fortell wearers. Shows connection status and per-device battery, controls volume for both aids together or independently with per-device mute, switches listening modes, enables sleep mode, and provides a three-band equaliser plus a separate one for streamed audio. It is also the channel for messaging the wearer's Fortell audiology team and for remote fitting, both realtime and asynchronous.