Dedicated Record Button makes recording fast and simple because you need only to press it to start and stop the recording.
The device has an LCD display with 3 subpixels per pixel, resulting in sharp and crisp images. Pixels in some displays (like AMOLED) share one subpixel to preserve space. This can result in a less crisp, slightly blurred image.
Devices with stereo speakers deliver sound from independent channels on both left and right sides, creating a richer sound and a better experience.
A microphone port allows connecting external high-end or specialized microphones.
A stereo microphone allows to record audio files or movies in stereo without an external microphone.
You can set your device to automatically record whenever sound above your designated level is detected.
Voice recording feature allows you to record voice memos, notes, lectures, etc.
More microphones result in better sound quality and enable the device to filter out background noise.
With a standard mini jack socket, you can use the device with most headphones.
Newer USB versions are faster and have better power management.