HidrateSpark STEEL is a stainless-steel, vacuum-insulated chug that keeps drinks cold up to 24 hours. LED smart sensor “puck” glows to remind you when it’s time to drink and tracks your water intake by syncing via bluetooth to the HidrateSpark App. The HidrateSpark STEEL bundle includes both a chug and a straw lid. Throughout each day, HidrateSpark STEEL calculates and adjusts a personalized hydration goal based on your body and activity level. The sensor puck tracks how many ounces or milliliters you drink and then records it via the app on your iPhone, iPad, and Apple Watch. The free HidrateSpark App syncs seamlessly with the HidrateSpark STEEL. Once you create an account, the app can access Apple Health for your personal info and step data—which it uses to adjust your daily hydration goal. The app also pushes every sip it records back to Apple Health, allowing you to see all your data in one place. You can also keep track of your consumption on Apple Watch and easily add amounts of water that you drink from sources other than the HidrateSpark STEEL bottle. Glows to remind you to drink throughout the day and can be customized by pattern and color Sensor puck tracks water intake, syncs via Bluetooth to the Free HidrateSpark App Rechargeable battery with included fast-charging cable Stainless steel and vacuum insulated to keep drinks cold for up to 24 hours BPA Free Protective spout cover and lock to keep out dirt and germs and prevent spills Clinically proven accuracy within 3% of manual readings through Mayo Clinic trials Carry loop makes it easy to carry on-the-go Bottle and lids are dishwasher safe. Clean sensor puck with a damp cloth HidrateSpark STEEL 21 oz. smart water bottle Chug lid Straw lid Rechargeable battery Instruction manual Other Features: Bluetooth, Charging, Health App Compatible Internet Access: Some Features Require Internet Access Cable Length: 20.6 in. / 52.3 cm Connections: Bluetooth Bluetooth Compatibility: Bluetooth 4.0, Bluetooth 5.0 Power Source: USB Batteries: Lithium Ion Battery life: 10-14 days Charge Time: 2.5 hours Height: 10.7 in. / 27.2 cm Length: 3.2 in. / 8.2 cm Width: 3.2 in. / 8.2 cm Operating System: iOS 12 or later; watchOS 5.3 or later Mfr. Part Number: HI-009-002 UPC or EAN No.: 815105023881 Note: Products sold through this website that do not bear the Apple brand name are serviced and supported exclusively by their manufacturers in accordance with terms and conditions packaged with the products. Apple’s Limited Warranty does not apply to products that are not Apple branded, even if packaged or sold with Apple products. Please contact the manufacturer directly for technical support and customer service. Warranty: 100-day