Xiaomi 5s/5s Plus was released less than one month ago, and Xiaomi Note 2 and Xiaomi MIX were released. Because of the particularity of Xiaomi MIX, the orthodox flagship Xiaomi Note 2, which uses a hyperbolic screen and is endorsed by Tony Leung, is submerged in the light of the former. Compared with the "concept machine" Xiaomi MIX that is hard to find, Xiaomi Note 2 is the high-end flagship of Xiaomi that is really used for measurement.
Appearance and workmanship
The Xiaomi Note 2 we got is a 4G memory+64G storage version, and the price is 2799 yuan. Accessories include Xiaomi series standard QC3.0 power adapter MDY-08-EH (nominal maximum output 9V/2A, 12V/1.5A output, but the actual maximum output can exceed 20W), USB Type-C data cable and card pin, and transparent hard protective case that only covers the four corners.
The home key adopts a ceramic cover plate, which has a certain color difference with the front glass
Since Xiaomi 5, the brand logo has been removed from the front of Xiaomi series machines, and the pure black panel looks very simple. Only the outer metal ring of the Home key is slightly higher than the screen. The ceramic cover plate is almost flush with the screen. The key stroke is short and the feel is tight.
The screen size maintains 5.7 inches of Xiaomi Note. It has become a hyperbolic screen, but the 2K version is no longer available. The 1080P flexible OLED panel is provided by LG, which has high color saturation and contrast.
At the beginning of 2015, Xiaomi Note first launched the hyperboloid glass on the back, and Xiaomi Note 2 also used the hyperboloid on the front, with the effect similar to the positive and negative hyperboloid of Samsung S7 edge. Interestingly, Xiaomi Note focuses on white, while Xiaomi Note 2 focuses on black. The color and shape of the back of the black version are similar to that of Xiaomi 5.
Rear camera It is placed symmetrically with the millet logo, at a low position, and the visual proportion is slightly disharmonious. It is only smaller than the fuselage The protrusion is about 1mm, which can be placed on the table stably, and the "seesaw" effect is very slight.
The frame of Xiaomi Note 2 also has a gray black anodized coating, and a radian that fits the curved surface. The infrared sensor is reserved on the top of the fuselage and placed symmetrically with the 3.5mm headphone interface, with a noise reducing microphone in the middle. The microphone is on the left side of the bottom of the fuselage, and the speaker is on the right side. The opening is much larger than normal, and there is no mesh in it, so it is easy to mix foreign matters.
The left side of the fuselage is Dual nano SIM card slots do not support TF card expansion. The volume key and power key on the right side sit on a very narrow metal frame. The key range and feedback are normal, but the bulge is high, even a little high, and slightly empty.
Workmanship: The metal frame and the front and back 3D glass are exquisite, but the key feedback is average. In the upper right corner of the back of our testing machine, the gap between metal and glass is large, which is easy to accumulate dust and dirt;
feel: The transition between glass and metal is relatively natural. The glass is slightly lower than the frame and slightly scratched, but it is close to the level of S7 edge. The round corners are comfortable to hold, but The radian of the glass part is small, and the frame is relatively wide, leading to the horizontal comparison of the supporting hands;
Curved surface and false touch: the curved surface amplitude of Xiaomi Note 2 is smaller than that of Xplay5 and Samsung S6/S7 edge series, which has little impact on daily display. The frame is wide and the camber of the surface is small, which does not bring special problems of false touch;
Routine maintenance: The biggest problem with the machine with glass on the back is that it is too slippery. It has its own slide effect on the desktop. You should be careful when it is connected to the data cable or placed horizontally. In addition, curved glass is easy to scratch, and the scratches will be more obvious on the curved surface. Virgos recommend using with a shell.
Appearance comparison with Xiaomi MIX and Xiaomi Note
Xiaomi MIX (left) and Xiaomi Note 2 (right), the flagship of Xiaomi's "Gemini"
The glass (Xiaomi Note 2, left) and ceramic (Xiaomi MIX, right) on the back will have obvious color differences
Xiaomi Note 2 and Xiaomi Note
Hyperbolic screen and screen performance
The hyperbolic screen is the biggest feature of Xiaomi Note 2, and its screen performance is also the most concerned problem. However, it uses LG's flexible OLED panel, which has also been used on LG's own curved screen machines G Flex and G Flex 2 (6 inch and 5.5 inch 1080P respectively). Both of them have the problem of uneven brightness and solid color display under low brightness, which makes people wonder whether the Xiaomi Note 2 screen will have similar problems.
Brightness extremes and uniformity
Maximum brightness
Minimum brightness
Xiaomi Note 2 uses the 5.7 inch 1080P OLED screen provided by LG, with the measured maximum brightness of 340 nits. When displaying in a small area, the extreme brightness can soar to 364 nits (the characteristics of OLED screens), but there is no mechanism similar to that of iPhone 7 and Samsung for brightness explosion under strong light.
The overall brightness is average. It will be a little difficult to use in strong sunlight. The minimum brightness is on the high side, which is as high as 20 nits (the conventional IPS screen can be pressed below 5 nits, and the AMOLED screen can be pressed around 1 nit). It will be a bit dazzling when you turn off the light.
The brightness of the four corners of the screen is about 358/360/345/341 nits. The brightness of the upper end of the screen is about 20 nits higher than that of the lower end. The brightness uniformity is normal.
Hair color and color uniformity
Enlarged OLED screen of LG and Samsung
LG and Samsung OLED screens are arranged with Pentile diamonds, but the former is RBGB (red, blue, green and blue), and the latter is RGBG (red, green, blue and green). There are more blue and green sub pixels, respectively. If not controlled, white tends to be blue and green. In fact, the color of Xiaomi Note 2 screen is a bit blue. In addition, the Pentile array with the actual resolution of 6.7% off is placed on the 5.7-inch screen of 1080P, which is difficult in fineness.
At low brightness, the tester we got has a certain negative and positive screen phenomenon (red at the top, blue at the bottom). The uniformity of solid color is not very good, and the performance is very similar to G Flex 2.
viewing angle
Comparison of upper and lower viewing angles (left Xiaomi Note 2, right iPhone 7 Plus)
Side visual angle contrast (lower Xiaomi Note 2, upper iPhone 7 Plus)
Diagonal line (left Xiaomi Note 2, right iPhone 7 Plus)
Although the comparison with the top IPS screen of iPhone is a bit unfair, it can be found that Xiaomi Note 2 will have an obvious blue and cold problem when changing the angle, which will have a certain impact on the occasions requiring visual angle such as daily photo taking and sharing of display pictures.
Color Level and Color Gamut
Default color gamut and color standard of intelligent environment adaptation mode
Default gamut and color level of standard mode
Default intelligent environment adaptation mode, Xiaomi Note 2 reaches 142.8% sRBG color gamut; Color temperature 8011K, slightly cold; The average deltaE of color quasi correlation is 4.1, the maximum is 7.2, and the performance is average;
In standard mode, the color gamut of Xiaomi Note 2 is 93.8% sRGB; Color temperature 7072K, slightly warmer; The average deltaE related to color standard is 1.9, the maximum is 4.4, and the performance is excellent.
Xiaomi Note 2 is definitely the best machine in Xiaomi family history, which is quite amazing. For comparison, iPhone 7 is 1.6, Note5 is 1.8, S6 edge+is 2.6, and S7 edge is 2.9.
system
Xiaomi Note 2 is equipped with MIUI 8 based on Android 6.0.1. The system has powerful and complete functions, but the features of more advertising push are not different from other Xiaomi phones. The system UI and functions are expected to be familiar to everyone. Interested readers can check the previous MIUI 8 in-depth evaluation , I will not repeat it here.
Xiaomi Note 2 Lock Screen Shortcut
Lock screen shortcut setting menu
The music screen of Xiaomi Note 2 does not have special functions, but it has a very delicate theme (other mobile phones can also use it directly). The lock screen interface has the music screen related side toolbar, which can be highly customized. The system background has specific stripe decoration, unlocking and special animation. This specific background alleviates the problem of uneven solid color of this OLED to some extent.
performance
CPU computing performance
GPU graphics performance
Flash memory read/write performance
Xiaomi Note 2 carries the standard flagship core Snapdragon 821 in the second half of the year. The main changes compared with 820 are overclocking and voltage reduction. The frequency of CPU cores and cores is increased from 1.59+2.15GHz to 2.19+2.34GHz, and the GPU is increased from 624MHz to 653MHz. The above is the interception of part of the run points. The detailed comparison can help us Ainongji (WeChat search: Ainongji) Of Running points library 。
Xiaomi Note 2 No need to worry about performance, In daily use, four cores can be fully opened at the highest frequency, which is a real full blood Snapdragon 821. However, the GPU part of the score is lower than that of Xiaomi MIX, and the reading and writing performance is slightly better than that of Xiaomi 5s with the same capacity.
photograph
Xiaomi Note2 adopts the IMX318 with the highest pixel of Sony's active "take away", the highest pixel is 22.56 million pixels, the unit pixel is 1 μ m, and the F2.0 aperture:
Comparison Diagram of Xiaomi Note2/Xiaomi 5/Xiaomi 5s/Hammer M1L Camera Parameters
Photo experience: Xiaomi Note2's focusing performance is relatively stable, similar to that of hammer M1L, and the weak light focusing speed is slightly lower than Xiaomi 5s, but better than Xiaomi 5. It supports automatic HDR and automatic night scene, and has fast imaging speed. HDR and night scene algorithm processing will be carried out in the background, which will not affect the shutter response of the foreground, and the experience is excellent.
Panoramic mode comparison
Panorama mode photo size of the 4 units:
Hammer M1L: panoramic angle about 270 degrees, 11408 * 2464, 4.87MB
Xiaomi Note2: panoramic angle is about 230 degrees, 6816 * 1728, 4.49MB
Xiaomi 5: panoramic angle of about 220 degrees, 6880 * 1664, 4.00MB
Xiaomi 5s: panoramic angle of about 230 degrees, 13760 * 3520, 13.1MB
The panoramic effect of Xiaomi 5s and Hammer M1L is better. The former is better than the lower resolution and image compression, while the latter is better than the larger field of vision, but the metering is slightly darker; In Xiaomi's home, Xiaomi Note2 may have its high pixel, which caused processing pressure, and the sample showed obvious stitching marks.
Same point amplification
Xiaomi 5s with the lowest pixel can capture the clearest details, and the visual field distortion is smaller. The details of the high pixel hammer M1L and Xiaomi Note2 are not as good as expected.
Lens quality&wide angle&edge degradation
Sample size comparison
Equal magnification, comparison of the size of the same object
wide-angle: The focal length information of Xiaomi 5s and Xiaomi Note 2 has some minor problems, and the equivalent focal length cannot be confirmed, but their actual wide-angle/equivalent focal length size is very close, both slightly larger than the hammer M1L, and a section larger than Xiaomi 5. Because the wide-angle is larger, After the same scene is magnified proportionally Xiaomi Note 2 and The hammer M1L is not much bigger than Xiaomi 5.
Edge deterioration (the lower right corner of the sample is enlarged)
Glare control comparison
Edge deterioration: Hammer M1L and Xiaomi 5 have added optical anti shake, which makes it more difficult to control the lens edge degradation, which is worse than Xiaomi Note2 without optical anti shake, and is significantly different from Xiaomi 5s with almost no edge degradation.
When the front side is strongly backlighted, the glare control of Xiaomi 5s and Hammer M1L is relatively good, the contrast of the picture will not decrease significantly, and there is no obvious fog phenomenon. The light spot is relatively small (the purple part is caused by the reflection of the strong light in the lens), followed by Xiaomi Note2, and the performance of Xiaomi 5 is worse. They are all within the normal range, and it is easy to avoid them in normal composition.
White balance/metering/tolerance/saturation contrast
PS: This part of the proof sheet is used to compare the white balance, photometry and color saturation, and the discrimination proof sheet is concentrated in the last part. The focus of the proofs is in the middle, and they are magnified in the center. All samples are arranged from strong to weak light:
Daytime sample sheet 1
Daytime sample sheet 2
Daytime sample sheet 3
Weak light sample sheet 1
Weak light sample sheet 2
Ultra weak light sample sheet 1
Ultra weak light proof sheet two
Ultra weak light sample sheet 3
metering: Hammer M1L is normal in light and indoor scene metering, but it is darker in strong light and weak light, and the stronger/weaker the scene light, the more obvious the underexposure. The three Xiaomi houses, including the extremely weak light scene, are close to the naked eye. Xiaomi 5 is slightly brighter in the daytime, and Xiaomi 5s is slightly brighter in the extremely weak light.
White balance and saturation: In the daytime scene, the white balance of Xiaomi 5 and Xiaomi 5s is relatively accurate, and the green saturation of the latter is higher. Hammer M1L tends to be red and yellow, Xiaomi Note2 tends to be green, and the green saturation is high. After the light became weaker, millet's 5s white balance was unexpectedly good. Except Xiaomi 5, which turns green in weak light, Xiaomi Note2 and Hammer M1L are acceptable. The former tends to be green, while the latter tends to be red.
Tolerance and contrast: On machines with poor HDR algorithm or high trigger threshold, tolerance is basically linked to the size of unit pixel. The Xiaomi 5s (1.55 μ m) with the largest unit pixel has obvious advantages in tolerance. The default mode is like the one with HDR effect, followed by Xiaomi 5 (1.12 μ m) and Xiaomi Note 2 (1.0 μ m). The hammer M1L, which is often underexposed, has the problem of high contrast/low tolerance. The separate sample may not be obvious, but it will be sad when compared with conventional mobile phones.
Discrimination/noise control/texture contrast
PS: Click the picture to view the large picture, The focus of all proofs is in the middle, and they are magnified in the center. All samples are arranged from strong to weak according to ISO and shutter:
Sun Scene 1
Sunlight Scene 1 Center Zoom In
Sunlight Scene 2 Center Right Zoom In
Sunlight Scene 2 Center Zoom In
Sunlight Scene 3 Center Zoom In
Light Scene 1
Light Scene 2
Light scene 3 center left zoom in
Weak light scene 1
Weak light scene 2
Extremely weak light scene 1 central amplification
Extremely weak light scene 2
Noise control: It is directly determined by the size of unit pixel and the noise reduction algorithm. Xiaomi 5s has an overwhelming advantage in the daytime scene. The next stage is Xiaomi 5, followed by Xiaomi Note2. The hammer M1L of IMX318 is also used to ensure details. Even in the daytime, the noise is more obvious than Xiaomi Note2. After using the night view mode, the millet painted on the big bottom+the millet painted on it for 5s can hardly see the granular noise under the extremely weak light, followed by the hammer M1L, followed by the millet Note2, while millet 5 rarely painted on it to ensure the analytical power, and the noise is moving.
Discrimination: For a mobile phone, the number of pixels is fixed. The larger the wide-angle is, the lower the number of pixels in the same scene will be, thus affecting the discrimination. Reviewing the above contrast of scenery size, it can also be predicted that Xiaomi's 5s discrimination will definitely be hanged. As soon as the sample is magnified, the pain of insufficient discrimination will be felt; Unexpectedly, the ultimate analytical power of Hammer M1L and Xiaomi Note 2 is the same as that of Xiaomi 5 with 1600 pixels The comparison can only be said that there is a winner or loser for each other, and even Xiaomi Note2 is slightly inferior.
After the light became worse, three smearing algorithm tendencies appeared in the four machines. Xiaomi switched to the night scene algorithm that tried to ensure that the details were hardly smeared on Xiaomi 5. Maybe it was the noise problem that made everyone feel bad. On Xiaomi Note2 and Xiaomi 5s, it returned to the previous strong smearing scheme, but the noise reduction algorithm still needs to be improved. Many details have been smeared out. The hammer M1L is a compromise version of them. Better noise reduction algorithm makes it have obvious advantages in indoor lighting (half good light). However, in low light scenes, the hammer M1L with optical anti shake cannot be separated from Xiaomi Note 2 in terms of discrimination, and is inferior to Xiaomi 5 with full noise.
Endurance&Charging
Xiaomi Note 2 is equipped with a 4070mAh battery. After 30 minutes of large-scale games (NBA 2K15), 30 minutes of wifi and 4G Internet access, one hour of music playing and 30 minutes of local video playing, after a full three hour endurance test, the remaining power is 79%, which is amazing. 821+low resolution OLED screen+large battery has outstanding effect.
Xiaomi Note 2 supports Qualcomm QC3.0 fast charging, with a maximum charging power of 15-16W.
25% in 15 minutes, 48% in 30 minutes, 69% in 45 minutes, and 85% in one hour. The first half of the charging speed is OK; After 85% of the battery was charged, it took 50 minutes to fully charge the last 15% of the battery, which took 1 hour and 50 minutes. Although the total score is not good, the fast charging part is normal. During charging, the heat is concentrated on the upper part of the body, only at the warm hand level.
summary
The Xiaomi Note series has always been the historical mission of Xiaomi's beauty and new technology exploration, but this year, Xiaomi MIX has carried out a lot of technology demonstration work, and Xiaomi Note 2 can focus more on beauty and daily use. According to the actual test, the advantages of Xiaomi Note 2 are the hyperboloid appearance, the best color accuracy performance in Xiaomi's history, and the excellent endurance performance.
The hyperbolic screen, as a selling point, is not highly curved and has no special function at this stage, mainly for decoration. In addition, perhaps to control the price of the machine within a reasonable range, the basic quality of the screen is average. Although taking photos can beat the M1L hammer with optical anti shake, it is still weaker than the Xiaomi 5/5s series. These are the choices that the author thinks "degree" is well controlled.
These are the most cost-effective hyperbolic screen flagship we know. If you have any questions about purchase or use, please visit the comment area or Love to play computer games Leave a message on our WeChat public account.
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