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Amazon.com: Apple Watch Ultra [GPS + Cellular 49mm] Smart Watch w/Rugged Titanium Case & Black/Gray Trail Loop S/M. Fitness Tracker, Precision GPS, Action Button, Extra-Long Battery Life, Brighter Retina Display : Electronics
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LVFAN Portable Wireless Charger for Apple Watch, 4000mAh iWatch Magnetic Charger Travel Charger Power Bank Battery Pack for Apple Watch Series 7,6,5, 4,3,2,1,SE,45/44/42/41/40/38mm (Black) - Walmart.com
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Apple Watch Series 4 Models Have Nearly 20% Less Battery Capacity Despite Same 'Up to 18 Hours' Battery Life - MacRumors
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Amazon.com: Apple Watch Series 8 [GPS 45mm] Smart Watch w/ Midnight Aluminum Case with Midnight Sport Band - M/L. Fitness Tracker, Blood Oxygen & ECG Apps, Always-On Retina Display, Water Resistant :
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