[Nexus 6  General] alex989898:
The problem, in my opinion, is still the same : all phone doesn't need the same brightness to achieve the same readability under direct sunlight.

Both iPhone 6+ and Note 4 are among the highest contrast rating under high ambient light that GSMArena and DisplayMate have ever measured.

But to achieve that they don't need the same brightness level.

Higher contrast and saturation or lower reflectivity are as much important as brightness to judge the final results (Z3 is a good example on that matter, it has an insane luminosity of more than 800nits but it doesn't perform better under direct sunlight than phones with 400nits brightness).

And, DisplayMate also says that :

" In fact, the Galaxy Note 4 is 40 percent more power efficient than the Full HD LCD Smartphones we tested for mixed image content (that includes photos, videos, and movies, for example) with a typical 50 percent Average Picture Level, APL."

Galaxy Note 4 display exceed the consumption of iPhone 6+ display only on a full white image. And again, both phones doesn't have the same brightness but both achieve excellent performances under direct sunlight.

it's not the biggest battery on the market but still similar to other phablets except Chinese product's. GNote 4 and Z3 have only 10% bigger battery. LG G3 is nearly the same as iPhone 6+.

In Anandtech's test, GNote 3 does 11% better than Nexus 5 while browsering on WiFi and 17% while on LTE.

In real life use, GNote 3 certainly double the battery life of the Nexus 5 (stock, especially on the first firmware).

And how using 200nits will be representative of anything in real life usage ?

Outdoor, the phone will rank up to Max brightness, so a Nexus 5 will go for more than 400nits while an GS4 will use 255nits (because it's is max brightness). Which one will give you the best battery life ? One was tested at nearly maximum brightness and the other at less than 50%.

And when you go indoor ? All phones doesn't have the same lower brightness level.

That's why 200nits is not any better than 50% brightness. It's an arbitrary value, set just because all device have it but that doesn't reflect any real life usage.

At least 100% brightness will give you an idea of what to expect in extreme scenarios but 200nits or 50% brightness doesn't make sense.

Add to all of this that they test phone browsering which, again, give an edge at some type of screens.

At least, GSMArena test different kinds of activity and standby. We also know which is the luminosity for each phones at 50% brightness because they measured it and published it (and as a matter of fact, 50% brightness on the iPhone 6 is only 208nits when it's 291nits for the GN4). And they are very clear on every protocols, we know eve' the type of connection uses for WiFi during test.

Except that Nexus 5 and GN3 is known to be night and day in terms of battery life. And except Anandtech, I have never seen such results elsewhere.

Lesnumeriques uses 150nits for all screens. They used to go for 200nits but this value was judged too high for some screens. All their protocols are explains generally when they launched it. they are sufficiently serious that the Panasonic engineers do in an emergency a new firmware for their tv that did not correctly pass the tests of lesnumeriques's lab

GSMArena has a dedicated page for all their testing protocol. They are far more transparent than Anandtech.

Phonearena uses 200nits for all phones. That was said when they launch the test back to the LG G2 (I supposed it's always write in the test).

All other reviews are based on experience.

But again, phonarena, GSMArena and lesnumeriques, all find similar results in their tests. Anandtech is the intruder here.

That's true, but again, all phones doesn't use same technology and they don't use the same luminosity. Resolution and size are just others criteria.

But I think it's completely off topic here and that's my fault because I was the one who begin to argue. So I suggest that if you want to respond, you can send me an MP.