Nothing Phone (4a) debuts these new features in Nothing OS 4.1 Nothing OS 4.1 on the Nothing Phone (4a) series is debuting a few key changes to the company’s Android skin including better “Essential Apps” functionality, a new “Relaxation Hub,” lock screen tweaks, and more. https://9to5google.com/2026/03/17/nothing-phone-4a-debuts… https://9to5google.com/2026/03/17/nothing-phone-4a-debuts…