Color accuracy
After the iPhone 5s’ terrific characteristics in terms of screen quality, we were hopeful that the iPhone 6 will push things even further with its 4.7” display. Sadly, we can’t say that this is what happened in reality.
When we first reviewed the iPhone 5s a year ago, we measured a color temperature of 7150 K. However, displays obviously have the tendency to alter their colors slowly over time, which has shifted the color temperature of the 5s to 7350 K over the course of one year (hopefully the rate of alteration will be getting much slower going forward), which is still fine, although definitely not ideal (the ideal display color temperature is considered to be 6500 Kelvin). Putting the brand new iPhone 6 through our extensive display tests, we have to say that we’re slightly disappointed to find that it doesn’t improve upon the offering of the 5s when it was new – the iPhone 6′s color temp is ~7150 K. Don’t get us wrong – that’s still among the best out there, but the nerds in us would have been much more satisfied if that figure was sub 7000 K. Just to make things clear for everyone, having a color temperature higher than 6500 K means that the display will have more intensive blue colors, compared to its red colors. In other words, in the case of the iPhone 6, it will appear slightly bluish, or cold, in comparison with what’s considered the reference value.
So, let’s see what the competition brings to the table. Being the most prominent rival of all, the Galaxy S5′s AMOLED screen is notorious for its polarizing color reproduction. On one hand, there are many users in love with its ultra-vivid colors, but on the other, it wouldn’t be an overstatement to say that more often than not, those same colors are simply wrong – way off from target. Indeed, as we’re examining the Galaxy S5′s display in its Standard mode, the temperature gets to the excessive 8100 K. Having in mind that color temperature is a metric that exclusively deals with the balance between blue and red, one may think that the problem for the Galaxy S5′s display is simply its overly-intensive blue. However, it also suffers from excessive green, which casts an unpleasant tint over all color tones, making them look as if you’re viewing them from some kind of a filter. The amount of color error in the Galaxy S5′s screen is much higher than those in the iPhone 6 and 5s, as seen in its fairly high Delta E values (Delta E greyscale of 7.38, and Delta E rgbcmy of 5.08). In comparison, those numbers stand at 3 and 3.51, respectively, for the iPhone 6 (when it comes to Delta E, lower is better). Sadly, things don’t get much better with the S5′s other display modes, but if you’re willing to learn about how its screen looks with the different screen modes activated, be sure to read this article of ours.
Meanwhile, the LG G3′s gargantuan 5.5” screen isn’t bad at all. It’s definitely much more accurate than that of the Galaxy S5, though there are certain practices LG has employed in its calibration that prevent it from successfully competing for the top. Namely, there’s been some artificial oversaturation done to the screen, which aims to make colors more punchy. Whether or not the effect enhances the actual color quality, or ruins it, is mostly subjective, so everyone will have to decide for themselves. The HTC One (M8) is a bit less tense in this respect – colors are not so exaggerated, though they still tend to be over their standard values.
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Color accuracy
After the iPhone 5s’ terrific characteristics in terms of screen quality, we were hopeful that the iPhone 6 will push things even further with its 4.7” display. Sadly, we can’t say that this is what happened in reality.
When we first reviewed the iPhone 5s a year ago, we measured a color temperature of 7150 K. However, displays obviously have the tendency to alter their colors slowly over time, which has shifted the color temperature of the 5s to 7350 K over the course of one year (hopefully the rate of alteration will be getting much slower going forward), which is still fine, although definitely not ideal (the ideal display color temperature is considered to be 6500 Kelvin). Putting the brand new iPhone 6 through our extensive display tests, we have to say that we’re slightly disappointed to find that it doesn’t improve upon the offering of the 5s when it was new – the iPhone 6′s color temp is ~7150 K. Don’t get us wrong – that’s still among the best out there, but the nerds in us would have been much more satisfied if that figure was sub 7000 K. Just to make things clear for everyone, having a color temperature higher than 6500 K means that the display will have more intensive blue colors, compared to its red colors. In other words, in the case of the iPhone 6, it will appear slightly bluish, or cold, in comparison with what’s considered the reference value.
So, let’s see what the competition brings to the table. Being the most prominent rival of all, the Galaxy S5′s AMOLED screen is notorious for its polarizing color reproduction. On one hand, there are many users in love with its ultra-vivid colors, but on the other, it wouldn’t be an overstatement to say that more often than not, those same colors are simply wrong – way off from target. Indeed, as we’re examining the Galaxy S5′s display in its Standard mode, the temperature gets to the excessive 8100 K. Having in mind that color temperature is a metric that exclusively deals with the balance between blue and red, one may think that the problem for the Galaxy S5′s display is simply its overly-intensive blue. However, it also suffers from excessive green, which casts an unpleasant tint over all color tones, making them look as if you’re viewing them from some kind of a filter. The amount of color error in the Galaxy S5′s screen is much higher than those in the iPhone 6 and 5s, as seen in its fairly high Delta E values (Delta E greyscale of 7.38, and Delta E rgbcmy of 5.08). In comparison, those numbers stand at 3 and 3.51, respectively, for the iPhone 6 (when it comes to Delta E, lower is better). Sadly, things don’t get much better with the S5′s other display modes, but if you’re willing to learn about how its screen looks with the different screen modes activated, be sure to read this article of ours.
Meanwhile, the LG G3′s gargantuan 5.5” screen isn’t bad at all. It’s definitely much more accurate than that of the Galaxy S5, though there are certain practices LG has employed in its calibration that prevent it from successfully competing for the top. Namely, there’s been some artificial oversaturation done to the screen, which aims to make colors more punchy. Whether or not the effect enhances the actual color quality, or ruins it, is mostly subjective, so everyone will have to decide for themselves. The HTC One (M8) is a bit less tense in this respect – colors are not so exaggerated, though they still tend to be over their standard values.
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