Buy the Sizing Kit with 9 sample rings. Wear the sample ring for at least 24hrs & make sure it's comfortable. £10 Amazon voucher will be automatically loaded to your account which you can use to get £10 off your Galaxy Ring purchase (T&Cs apply)¹ Better sleep insights: Galaxy Ring & Samsung Health together monitor your overall sleep to provide sleep insights. Get Sleep Coaching based on your sleep data to improve your sleep habits. ² ³ AI-powered health tracker: Galaxy Ring gets smarter the more you wear it. Slip Galaxy Ring on your finger & let it track your health all day. Check the Samsung Health app to see the comprehensive health report made by Galaxy AI. ⁴ ⁵ Energy Score: Knowing your condition is the key to unlocking a brighter day. Energy Score is a comprehensive result of analysis on your sleep patterns, activities & HR activity to inform you of your condition with an easy-to-understand score.⁶ Cycle tracking: Uncover more detail in your menstrual cycle, with skin temperature analysis to help predict your next fertile window and plan your life on your own terms.⁷ Battery: Put on your Galaxy Ring to go to work, to the gym, to bed and repeat all over again without having to charge the battery. Galaxy Ring works day and night with a battery that lasts up to 7 days on a single charge. ⁸ Water Resistant: Keep your Galaxy Ring on when you're washing your hands, jumping into the shower or taking a dip in the sea. Water-resistant rating of 10 ATM means it will continue to track your health even when you're drenched. ⁹