TwelveSouth launches 'ActionSleeve' as first upper-arm Apple Watch strap, claims improved heart rate tracking - 9to5Mac
![Bangkok, Thailand - FEB 6, 2021: Apple Watch Series 6 on men's arm. Men is testing Apple watch features in the shop Stock Photo - Alamy Bangkok, Thailand - FEB 6, 2021: Apple Watch Series 6 on men's arm. Men is testing Apple watch features in the shop Stock Photo - Alamy](https://c8.alamy.com/comp/2EWTJN1/bangkok-thailand-feb-6-2021-apple-watch-series-6-on-mens-arm-men-is-testing-apple-watch-features-in-the-shop-2EWTJN1.jpg)
Bangkok, Thailand - FEB 6, 2021: Apple Watch Series 6 on men's arm. Men is testing Apple watch features in the shop Stock Photo - Alamy
![Amazon.com: Twelve South ActionSleeve for Apple Watch | Armband for 38mm Apple Watch (red) : Cell Phones & Accessories Amazon.com: Twelve South ActionSleeve for Apple Watch | Armband for 38mm Apple Watch (red) : Cell Phones & Accessories](https://m.media-amazon.com/images/I/81wq6p9uoZL._AC_SL1500_.jpg)
Amazon.com: Twelve South ActionSleeve for Apple Watch | Armband for 38mm Apple Watch (red) : Cell Phones & Accessories
![Twelve South ActionSleeve for Apple Watch | Armband for 38mm Apple Watch (red) : Cell Phones & Accessories - Amazon.com Twelve South ActionSleeve for Apple Watch | Armband for 38mm Apple Watch (red) : Cell Phones & Accessories - Amazon.com](https://m.media-amazon.com/images/S/aplus-media/vc/1a4a077c-f553-47c4-b0d7-3dd97660f591._SL220__.jpg)
Twelve South ActionSleeve for Apple Watch | Armband for 38mm Apple Watch (red) : Cell Phones & Accessories - Amazon.com
![Amazon.com: Twelve South ActionSleeve for Apple Watch | Armband for 38mm Apple Watch (red) : Cell Phones & Accessories Amazon.com: Twelve South ActionSleeve for Apple Watch | Armband for 38mm Apple Watch (red) : Cell Phones & Accessories](https://m.media-amazon.com/images/S/aplus-media/vc/206a0e7c-df35-4cb5-8cbb-bcb7fa09f12c._SR970,300_.jpg)