sizing chart and instructions for the smart ring

M1 Smart Ring Plus (Black)

Product Features:

Phone Tracker
Amorphous Titanium Alloy
Epoxy Crystal Ceramic
High Speed NFC Dual-core Chips
Health Module

"Germanium","Volcanic Magnet", "FIR Energy Stone"The three Natural devices can improve human performance effectively.

Multi-function APP (note:only support NFC-enabled phone andandroid or Windows phone system)

Private note
Mobile phone lock
Whisper
Magic business card
Quick start
Information sharing
And much more!

Other Special Features:

Self-charging battery
Waterproof dust-proof and fall-proof

M1 Smart Ring (Black or White)

Product Features:

Amorphous Titanium Alloy
18K Rose Gold (White)
Epoxy Crystal Ceramic
High Speed NFC Dual-core Chips
Smart-door lock. Compatible with all NFC electronic locks. Samsung series for example.
Multi-function APP (note: only support NFC-enabled phone and Android or Windows phone systems):

Private note
Mobile phone lock
Whisper
Magic business card
Quick start
Information sharing
And much more!

Other Special Features:

Waterproof dust-proof and fall-proof
Partially Self-Charging

M1 Basic Smart Ring (Black)

Product Features:

Makes for beautiful fashionable, minimalist jewelery.
Unlocks the phone
Information sharing
Card sharing
More basics!
** Basic Ring Only works with Android and Google Phones!**

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Technology has decreased in size and it has definitely increased in power. This ring is the perfect example of very small but very powerful technology!

Upgrade your lifestyle with ease by wearing a tiny little ring that does everything for you! Answer your calls, pay for items, lock & unlock your doors, and most importantly NEVER LOSE YOUR PHONE AGAIN.

The smart ring is compatible with Android, iOS, and Windows Phone operating systems. You're good to go with any device!

It supports NFC functionality, wireless information sharing, phone unlocking, quick app launch and more.

Designed with hard Liquid Tungsten, this material will ensure the smart ring will be both durable while looking stylish and fashionable. The smart ring screams modern, in a way that's big and small at the same time.