--- product_id: 180131732 title: "Sinfu® NFC Multifunctional Waterproof Intelligent Ring Smart Wear Finger Digital Ring" brand: "sinfu" price: "286605₫" currency: VND in_stock: true reviews_count: 2 category: "Sporting Goods" url: https://www.desertcart.vn/products/180131732-sinfu-nfc-multifunctional-waterproof-intelligent-ring-smart-wear-finger-digital store_origin: VN region: Vietnam --- # Sinfu® NFC Multifunctional Waterproof Intelligent Ring Smart Wear Finger Digital Ring **Brand:** sinfu **Price:** 286605₫ **Availability:** ✅ In Stock ## Quick Answers - **What is this?** Sinfu® NFC Multifunctional Waterproof Intelligent Ring Smart Wear Finger Digital Ring by sinfu - **How much does it cost?** 286605₫ with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/products/180131732-sinfu-nfc-multifunctional-waterproof-intelligent-ring-smart-wear-finger-digital) ## Best For - sinfu enthusiasts ## Why This Product - Trusted sinfu brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Description Descriptions: Lock and unlock your Smart phone or tablet quickly, hide the app when you leave your smart phone alone Share & Transfer information (send the private message/Picture/business card/ website link to the person you want to share by a simple touch) Control Applications (you can write a fixed process list ahead of the time, and the ring will start the applications each time by simply touch. Water Resistant and No charging required Support All Android and Windows NFC Mobiles. Size Chart please check the image Quickly start the phone application, in advance will need to quickly start the program startup command written in the smart ring, when the smart ring touches the phone will automatically find and start the program. Multi-functional NFC smart ring, the main function is to store and exchange personal information, as well as mobile content and personal privacy encryption unlock, support for Apple, Samsung, Huawei, millet and other DNF-enabled mobile phone. Specification: Size:6,7,8,9,10,11,12,13 (please refer to the size picture) Chip: NFC chip Working frequency band: 13.56MHZ Storage space: 144BYTES Transmission rate: 106kb / s Uses: set up smart lock, card recharge, smart phone unlock, phone important file lock, transfer files. Features: No charge, programmable read-only lock function, 7-byte serial number clone protection Package: 1 x Smart Ring ## Features - Soft Silicone - Imported - We shipped items from China. Usually it will take about 7-23 working days. We have already chosen the fast shipping way - Uses: set up smart lock, card recharge, smart phone unlock, phone important file lock, transfer files. - Size:6,7,8,9,10,11,12,13 (please refer to the size picture) - Chip: NFC chip,Package Include:1 x Smart Ring - watch band bands for men tool iwatch 38mm pins link remover pin women 42mm series 3 samsung gear s3 frontier bandit kit fork turquoise set tol timex expedition tomtom rose gold apple aplle flowers leather series adjustment adjuster adjust asus zenwatch spring bars bar fit2 sizing sport strap loop classic sizer screwdriver 22mm silicone nylon red distressed nato stainless steel black green white wrap magnetic - watchbands men's for apple watches iwatch 42mm fitbit blaze samsung gear s3 classic 19mm watch bands men 38mm women frontier charge versa 18mm leather ionic womens sport s2 nato mm 20mm long silicone 21mm 24mm timex expedition ticwatch e tools tactical thin tomtom two tone tissot tan wide 14mm with cover holes ladies ## Images ![Sinfu® NFC Multifunctional Waterproof Intelligent Ring Smart Wear Finger Digital Ring - Image 1](https://images-na.ssl-images-amazon.com/images/I/519aT-VzArL.jpg) ![Sinfu® NFC Multifunctional Waterproof Intelligent Ring Smart Wear Finger Digital Ring - Image 2](https://images-na.ssl-images-amazon.com/images/I/51Ic4mTVcSL.jpg) ![Sinfu® NFC Multifunctional Waterproof Intelligent Ring Smart Wear Finger Digital Ring - Image 3](https://images-na.ssl-images-amazon.com/images/I/61-6IV79wIL.jpg) ![Sinfu® NFC Multifunctional Waterproof Intelligent Ring Smart Wear Finger Digital Ring - Image 4](https://images-na.ssl-images-amazon.com/images/I/51HpmaRxmYL.jpg) ![Sinfu® NFC Multifunctional Waterproof Intelligent Ring Smart Wear Finger Digital Ring - Image 5](https://images-na.ssl-images-amazon.com/images/I/51UU5b1IcJL.jpg) ## Customer Reviews ### ⭐ One Star *by F***T on August 13, 2018* Does not work with IPhone, can’t get info on app. ### ⭐⭐⭐⭐⭐ Light not too heavy *by A***A on July 29, 2019* It’s great value --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.vn/products/180131732-sinfu-nfc-multifunctional-waterproof-intelligent-ring-smart-wear-finger-digital](https://www.desertcart.vn/products/180131732-sinfu-nfc-multifunctional-waterproof-intelligent-ring-smart-wear-finger-digital) --- *Product available on Desertcart Vietnam* *Store origin: VN* *Last updated: 2026-06-03*