Smart Ring Wearable Device Multifunctional Black High-tech

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Battery capacity: None Battery Appearance size: 58*58*42mm Product weight: 39g Applicable crowd: all, fashion, trend, learning, couples Wearing method: finger Additional features: Talking up artifact, audio and video entertainment, support for NFC function, sharing/sharing, information push, privacy protection Ring model Ring perimeter 7 54 8 57.1 9 60 10 62.8 11 66 12 70 Show more