Sony has a penchant for classy-looking products, and CNET says the design of the SRS-X3 is "is straightforward and elegant" with a "nice, smooth-to-the-touch finish." PC Mag finds it "minimal" compared to other speakers, but still likable. And while it isn't built to be super tough, Stuff says the "build quality is strong" and the size offers "reasonable portability," as long as you don't take it on "rugged outings."
Whether on a picnic or in the office, CNET says the X3 offers clean sound "with good detail in the treble and clear midrange." Response to the bass was mixed, with What Hi-Fi saying it "flaunts more bassy punch than most speakers of its size should be allowed to," while CNET notes the bass "isn't huge" and the speaker does best "in smaller rooms and makes for an excellent little background music generator."
Though the SRS-X3 doesn't offer the same deep bass as rivals like the SoundLink Mini, it also doesn't cost as much, making it a solid buy for those who like clean sound they can take anywhere.