Samsung Galaxy S III vs. HTC One X

Loudspeaker performance

We put the Samsung I9300 Galaxy S III and the HTC One X side by side in our loudspeaker performance test. The Galaxy S III comes on top with a better all-round mark (Good) while the One X got an Average rating.

In voice output the Galaxy S III is way ahead and it's slightly louder when reproducing pink noise, too. Keep in mind that if you're using ringtones, which resemble an old-fashioned phone ringer, the One X and Galaxy S III are almost on par.

Speakerphone test	Voice, dB	Pink noise/ Music, dB	Ringing phone, dB	Overal score
HTC One X	65.1	66.0	75.8	Average
Samsung I9300 Galaxy S III	75.1	66.5	75.0	Good

You can find all the information about how and what we test in our loudspeaker performance test page.

Audio quality

The Samsung I9300 Galaxy s III turned out to be one of the most talented musicians around and managed to edge out the One X in the audio quality test.

The two have almost identical volume levels when connected to active external amplifiers, but the Galaxy S III has much cleaner output with no weak points whatsoever. The One X on the other hand has higher than average distortion levels, which is rare to be seen in a high-end smartphone.

Things were a bit closer when we plugged in a pair of headphones. The Galaxy S III still got the better results on most parts of the test, but at least the One X managed to score a point with its lower stereo crosstalk. It's not enough to prevent this round from going in favor of the Samsung flagship though.

Test	Frequency response	Noise level	Dynamic range	THD	IMD + Noise	Stereo crosstalk
Samsung I9300 Galaxy S III	+0.03, -0.05	-90.3	90.3	0.012	0.018	-92.6
Samsung I9300 Galaxy S III (headphones attached)	+0.11, -0.04	-90.2	90.2	0.0092	0.090	-53.1
HTC One X	+0.02, -0.08	-82.1	82.1	0.137	0.393	-80.7
HTC One X (headphones attached)	+0.10, -0.10	-80.6	80.6	0.174	0.459	-60.8