I love Ibasso, really respect there products, especially the DX90 which I still use everyday after 3 years and have lot of pleasure to listen to, i'm still amazed by the clear, neutral and analytical sound it produces a lot!

The DX80 on the other hand is a much bigger DAP without changeable battery possibility, but as seen nowadays, all DAP take this path so I finally get use to it.
It uses the same Cirrus Logic CS4398 DAC than the Xduo X3 which is less expansive, smaller and have 2 SD slots too and a very solid metal body.
Sound of DX80 is similar but more powerful and energetic, as well as warmer than X3. About this, the DX80 has the advantage of muscle, it can drive lot of headphones and high impedance earphones easily, which is very very useful .
dual Micro SD card slots, with a total storage size of up to 2TB a possibility. There is no onboard storage for audio files, however, so a micro SD card is mandatory, unless you're using it as a DAC connected to a PC or Mac. When not connected to a computer or USB power source, the onboard battery is good for up to 13 hours of play time.

The DX80 runs iBasso Audio's proprietary software with an IPS touchscreen interface, can play most popular lossless digital audio formats and weighs in at 178g. This unit was updated to the V1.4.2 firmware released on April 30, 2016.

The onboard audio player interface is a functional affair and designed for anyone familiar with swiping left and right on their touch screens. The left most screen gives you access to your music categories, directories and Micro SD cards, centre screen is the music player and the right most screen provides a number of settings that are available for the DAP.