Apple Watch Series 9 Masimo warns Apple that a swift software update is not enough to allow banned watches back on the market Apple is furiously working on a software upgrade for the Series 9 and Utra 2 watches that were withdrawn from sale following a patent row Patent row forces Apple to halt sales of Apple Watch Series 9 and Ultra 2 Authorities say Apple's SpO2 tracking violates a rival's patent Advnture NewsletterAll the latest inspiration, tips and guides to help you plan your next Advnture!Contact me with news and offers from other Future brandsReceive email from us on behalf of our trusted partners or sponsors MOST READ1The 25 worst things to take on a bikepacking trip – advice from an expert27 reasons you need a sleeping bag liner: comfort, warmth and protection for your cocoon361-year-old runner breaks world record for fastest 1,000 marathons4Red 60L Getaway Kitbag review: a versatile, roomy dry bag that will see you through plenty of aquatic adventures and weekends away5Watch out Garmin – this tough Google-powered smartwatch is here to eat your lunch