Energy Slider”: a physical slider to adjust the tonal balance (bass vs treble) on the fly, bypassing the need to open an app.
Action button: customizable to launch spatial audio, voice assistant, or other shortcuts via the companion app.
Adaptive / hybrid ANC: active noise cancellation that adjusts to ambient noise levels (presumably up to ~40 dB) to reduce distractions.
Spatial Audio (Concert / Cinema modes): to simulate immersive listening environments using digital reverb, directionality.
Personal Sound / calibration: the Nothing X app allows verifying a “hearing profile” (audio shaping based on how you hear) to fine-tune output.
Up to 100 hours of playback (with ANC off).
Up to 50 hours with ANC enabled: still robust even with noise cancelation active.
Fast charging: 5 minutes of charge gives 4 hours of listening.