WRSLT smart – A South Korean team built WRSLT, a wireless smart ring system that recognizes ASL and ISL in real time with about 88% accuracy.
A see-through smart ring that can translate sign language in real time may sound like science fiction, but a new study suggests it could be closer to reality than most translation tech for deaf communication.
For many people who are hard of hearing, sign language isn’t merely an alternative way to communicate—it’s a primary language. The challenge is that most people with typical hearing aren’t taught sign language, which leaves a communication gap that’s difficult to bridge with today’s tools.
Researchers in South Korea report what they describe as an elegant solution: a system called WRSLT. short for wirelessly connected. ring-type sign language translator.. In the study published in Science Advances. the system recognizes and translates both American Sign Language (ASL) and International Sign Language (ISL) words with around 88% accuracy. and it’s designed to work in real time.
What makes WRSLT different is the form factor. Instead of gloves or extensive hardware, the setup uses rings—each with sensors designed to capture how hands move while signing. The goal is to keep the signer’s movements natural rather than forcing them to adapt to equipment.
Each ring includes a three-axis accelerometer that can detect finger motion.. When a signer wears the rings and begins signing, the sensors track finger orientation and hand movement.. That motion data is then sent wirelessly via Bluetooth to a smartphone or computer. where AI interprets the gestures and converts them into written text.
The study points to a major advantage over existing sign language translation approaches: freedom of movement. Many current tools rely on bulky gloves or wired sensor arrays that can restrict natural hand motion. They can also require recalibration for each user, adding friction for everyday use.
WRSLT, by contrast, is designed to avoid those constraints. With the rings acting as the sensing hardware and Bluetooth handling the data transfer, the system aims to reduce the setup overhead and let users sign without heavy equipment getting in the way.
The researchers also tested whether the system could generalize beyond the people it was trained on. According to the report, the system was trained on one group and then evaluated on a separate, different group, with results that remained strong despite natural variation in how individuals sign.
In those tests, the system correctly identified ISL words with 88.5% accuracy and ASL words with 88.3% accuracy. That matters because sign language is performed differently from person to person, even when the underlying meaning is the same, making gesture-based translation a moving target.
Still, the current capability is limited by vocabulary size.. Right now. WRSLT can recognize 100 words in each language. which the team describes as a solid starting point but not the end of the road.. Expanding the AI’s vocabulary to cover more words—and additional sign languages—is a key part of the next phase.
The researchers say they also plan to miniaturize the rings further. Shrinking the hardware could improve comfort and make the system easier to wear for longer periods, which is important if translation technology is ever meant to be used beyond controlled testing.
For deaf and hard-of-hearing communities, the promise of real-time translation is more than a technical milestone. A device that captures natural signing without forcing recalibration for each person could help reduce the everyday barrier between sign language users and people who don’t know sign.
It’s early days and the system’s vocabulary is still constrained, but the overall direction—wireless, sensor-light, and trained to recognize variation across different signers—puts WRSLT among the more promising sign language translation solutions seen recently.
smart ring translator sign language AI ASL translation ISL translation Bluetooth sensing accessibility technology
So it’s like Google translate but for hands? wild.
88% accuracy sounds kinda low tbh. Like what happens when it gets it wrong, does it just guess the whole sentence? Also do they mean ASL like totally correct or just close enough.
Wait I thought sign language apps already do this with cameras? Rings seems extra, and I don’t get how it reads fingers through everything like the article says 3-axis accelerometer. Does the signer have to keep their hands in the exact right position or it just fails??
Honestly I’m just picturing some see-through ring that’s gonna be $2,000 and require charging every night. Plus “wirelessly connected” makes me think lag… like real time but also maybe not real time? If it works it’s great, but 88% is gonna be tough for actual conversations. Also isn’t ISL the same as ASL? I always mix that up.