History and development of smart rings
Smart rings are compact wearable devices that integrate sensors and wireless technology into a ring form, enabling functions such as health tracking, authentication, and communication. They connect with smartphones or computers to share data or perform certain actions.[1] Some models focus on health tracking, while others are used for contactless payments or notifications.[2][3]
The idea itself isn’t new, but the technology only became practical in the last decade. Smart rings have developed over time, from simple prototypes that barely worked to more advanced versions that now compete with watches and fitness bands.[4]
Early ideas
Experiments with ring-shaped gadgets go back to the 1990s, when researchers tried to fit sensors or transmitters into jewellery. At that point, most designs were closer to proof-of-concept than real products.
By the early 2000s, short-range communication like Bluetooth and NFC made the idea of "smart jewellery" seem more realistic.[5] A few prototypes were shown at technology expos, usually demonstrating simple things such as unlocking doors or exchanging business cards. Most of these early attempts were bulky, drained their batteries quickly, or were uncomfortable to wear. Even so, they showed that a functional, finger-sized wearable might one day be possible.[6]
First commercial models
Around 2013, during the rise of fitness trackers, a few start-ups began to revisit the concept.[7] One of the first was NFC Ring, which used near-field communication to unlock doors or phones. Nod Labs released a gesture-control ring soon after. Both were somewhat experimental but attracted interest from tech reviewers and gadget fans.[8]
By the mid-2010s, the Finnish company Oura emerged as one of the first firms to focus entirely on smart rings for health tracking. Its early models measured sleep, heart rate, and body temperature, while later generations improved accuracy and introduced new features. The company continued to raise major funding rounds, and by 2025 Oura was valued in the billions, reflecting how mainstream the technology had become.[9]
Other brands followed. Motiv added fitness features, while Token worked on identity verification. Not all of them survived, but together they proved the idea could find a market. Many users still found the early versions inconsistent or expensive, yet they set the groundwork for what came later.[10]
Improving design and features
Between about 2018 and 2021, smart rings started to feel less like novelties and more like mature wearables. Manufacturers began using better sensors, including ones that could measure oxygen saturation and recovery data, and improved the way readings were processed.[11]
Design also became more important. The newer rings were lighter, waterproof, and more stylish. Some brands even worked with fashion labels, showing that design and technology could mix.[12][13]
By that time, most smart rings could connect smoothly with apps and other devices. Battery life was still a challenge, but a clear step forward from the first generation. In practice, this was when smart rings became recognisable as the kind we see today.[14]
Integration and market growth
By the early 2020s, smart rings started to fit into the wider ecosystem of health and fitness devices. Most new models could sync directly with apps like Apple Health and Google Fit.[15] Some users began wearing them instead of watches, since they were smaller and didn’t need constant charging.[16]
The COVID-19 pandemic also pushed interest in continuous health tracking. Reviews and user guides from major outlets examined how devices like the Oura Ring compared with watches and fitness bands for sleep, recovery, and readiness scoring.[17][18]
Analysts said the global market was still small but expanding steadily, driven by demand for discreet health wearables and a general shift toward smaller, always-on sensors.[19][20] While the idea hasn’t replaced watches, it’s now considered one of the next directions in wearable technology.[21]
Research and innovation
Outside of consumer products, smart rings have become a topic of interest in universities and labs.[22] [23] Researchers have used them to study sleep quality, blood oxygen, and stress levels.[24] Some experiments compared ring data with standard medical equipment and found that, although not perfect, the results were often close enough for everyday use.[25][26]
In computer science and linguistics, researchers have explored how wearable computers, including ring-based interfaces, could transform interaction and communication.[27] More recently, tech writers and engineers have examined the privacy and data-security issues surrounding smart rings, especially as they collect sensitive biometric information.[28]
Collectively, these developments illustrate that smart rings have evolved beyond consumer accessories into platforms for testing emerging sensor technologies and studying human–technology interaction in everyday settings.
See also
References
- ↑ BBC Science Focus – "Smart rings: the future of wearable tech or just a passing fad?" (2023)
- ↑ "What are smart rings and how do they work?". The Independent. 2024-07-22. Retrieved 2025-11-10.
- ↑ Corliss, Julie (2024-12-01). "Device of the month: Smart ring". Harvard Health. Retrieved 2025-11-10.
- ↑ "Smart Rings Seen as New Frontier for Cashless Payments". Bloomberg.com. Archived from the original on 2022-09-06. Retrieved 2025-11-10.
- ↑ ScienceDirect – "A Survey on Wearable Technology: History, State-of-the-Art and Future Challenges" (2021)
- ↑ Wang, Zeyu; Yu, Ruotong; Wang, Xiangyang; Ding, Jiexin; Tang, Jiankai; Fang, Jun; He, Zhe; Li, Zhuojun; Röddiger, Tobias (2025), Computing with Smart Rings: A Systematic Literature Review, arXiv, doi:10.48550/ARXIV.2502.02459, retrieved 2025-11-10
- ↑ TechCrunch – "Put an NFC Ring on It" (2013)
- ↑ "Nod smart ring aims to rule them all". BBC News. Retrieved 2025-11-11.
- ↑ CNBC – "Oura raises funds at a $2.55 billion valuation as ring maker expands its reach" (2025)
- ↑ "Review: Motiv's smart ring is a feat of miniature engineering". Kleiner Perkins | Make History. 2018-01-22. Retrieved 2025-11-10.
- ↑ Nature Digital Medicine – "Ring-based wearable technologies for health monitoring" (2024)
- ↑ "Wearable tech is the next frontier for luxury jewellers". South China Morning Post. 2025-06-30. Retrieved 2025-11-11.
- ↑ UK, FashionNetwork com (2025-10-13). "Smart ring brand Ōura opens Harrods concept store space". FashionNetwork.com. Retrieved 2025-11-11.
- ↑ Boxall, Andy (2025-10-16). "Battery breakthrough could change the future of smart rings". Android Police. Retrieved 2025-11-11.
- ↑ The Times – "Oura smart ring review: is this wearable fitness tracker worth it?" (2024)
- ↑ "Two new smart rings unveiled at CES | Mobi Health News". www.mobihealthnews.com. 2025-01-07. Retrieved 2025-11-11.
- ↑ The New York Times / Wirecutter – "The Best Sleep Tracker" (2024)
- ↑ TechRadar – "Your Oura Ring just got a major upgrade that gives it 3 handy new diet features" (2025)
- ↑ Sinclair, Lauren (2025-04-23). "From $350M to $1B: How Smart Rings Are Driving the Next Wave of Health Tech Innovation". Reddie & Grose. Retrieved 2025-11-11.
- ↑ Statista – "Wearable technology: facts and statistics" (2025)
- ↑ Huhn, Sophie; Axt, Miriam; Gunga, Hanns-Christian; Maggioni, Martina Anna; Munga, Stephen; Obor, David; Sié, Ali; Boudo, Valentin; Bunker, Aditi; Sauerborn, Rainer; Bärnighausen, Till; Barteit, Sandra (2022-01-25). "The Impact of Wearable Technologies in Health Research: Scoping Review". JMIR mHealth and uHealth. 10 (1): e34384. doi:10.2196/34384. ISSN 2291-5222. PMC 8826148 Check
|pmc=value (help). PMID 35076409 Check|pmid=value (help). - ↑ Fiore, Matteo; Bianconi, Alessandro; Sicari, Gaia; Conni, Alice; Lenzi, Jacopo; Tomaiuolo, Giulia; Zito, Flavia; Golinelli, Davide; Sanmarchi, Francesco (2024-11-21). "The Use of Smart Rings in Health Monitoring—A Meta-Analysis". Applied Sciences. 14 (23): 10778. doi:10.3390/app142310778. ISSN 2076-3417.
- ↑ Kim, Jihoon; Chang, Sung-A; Park, Seung Woo (2024). "First-in-Human Study for Evaluating the Accuracy of Smart Ring Based Cuffless Blood Pressure Measurement". Journal of Korean Medical Science. 39 (2). doi:10.3346/jkms.2024.39.e18. ISSN 1011-8934.
- ↑ "Wearable Computers Will Transform Language - IEEE Spectrum". spectrum.ieee.org. Retrieved 2025-11-10.
- ↑ Huhn, Sophie; Axt, Miriam; Gunga, Hanns-Christian; Maggioni, Martina Anna; Munga, Stephen; Obor, David; Sié, Ali; Boudo, Valentin; Bunker, Aditi; Sauerborn, Rainer; Bärnighausen, Till; Barteit, Sandra (2022-01-25). "The Impact of Wearable Technologies in Health Research: Scoping Review". JMIR mHealth and uHealth. 10 (1): e34384. doi:10.2196/34384. ISSN 2291-5222. PMC 8826148 Check
|pmc=value (help). PMID 35076409 Check|pmid=value (help). - ↑ "Smart Rings in Health Monitoring: Technological Advances and Clinical Applications of Finger-Worn Biometric Devices" (PDF). IOSR Journal of Dental and Medical Sciences (IOSR-JDMS). 24 (9 (Ser. 1)): 26–28. September 2025. doi:10.9790/0853-2409012628. ISSN 2279-0853. Retrieved 10 November 2025.
- ↑ IEEE Spectrum – "How wearable computers will transform language" (2023)
- ↑ InnoWearTech – "Bezpieczeństwo danych w smart ringach: jak chronić swoje informacje?" (2024)
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