Xiaomi announced the new independent brand Redmi on January 3, and on January 10, it released the first new machine of the independent brand Hongmi Note 7, the full blood Snapdragon 660, Samsung GM1 48 million pixel sensor, and the gradient glass back cover. Let's see how the flagship of the first red rice Note 7 performs.
Detailed configuration
SoC： Snapdragon 660 (Full Blood Version)
Photograph: Samsung GM1 sensor, 48 million HD dual camera
Storage: 6GB+64GB
Battery: 4000mAh large battery supports QC4 fast charging
Appearance: 6.3 "water drop full screen, phantom gradient glass body
Others: 18 month long warranty
appearance
The red rice note 7 adopts a double-sided 2.5D glass body design, and the three dimensions of the body are 159.21 * 75.21 * 8.1mm and 186g respectively.
The front adopts Tianma 6.3 inch water drop screen, with a resolution of 2340x1080409PPI, and Corning gorilla five generation glass.
The back is a rear fingerprint plus vertical dual camera design, the camera is convex, the fill light is located below the camera, and 48MP AI dual camera is marked beside the camera. The new logo of Red Rice has a line of small characters below Redmi: by xiaomi。
Above are infrared transmitter, 3.5mm headphone hole and microphone. There are headphone holes and infrared.
Below is the microphone Type-C、 Speakers.
The card slot is two out of three or card slot, which makes up for the embarrassment that the top configuration is only 64GB.
The appearance is very conscientious. Both sides are made of Corning Five generation gorilla glass, and the back has a gradient color design. The only disadvantage is that the plastic wrapping around the screen looks a bit cheap, but it is perfectly hidden with the official protective sleeve.
Screen
In the default mode, the color temperature is 8200K, the color gamut covers 99.3% sRGB, the average color deviation is 4.2, and the maximum color deviation is 6.8.
In enhancement mode, the color temperature is 7900K, the color gamut covers 99.3% sRGB, the average color deviation is 2.6, and the maximum color deviation is 5.9.
In standard mode, the color temperature is close to 6500K, the color gamut covers 97.9% sRGB, the average color deviation is 1.9, and the maximum color deviation is 4.7.
The color temperature of default mode and enhancement mode is relatively cold. The color temperature of standard mode is close to D65 standard, and the color basically covers sRGB. The color accuracy performance is best in standard mode. The objective data on the screen performs well at this price.
performance
Snapdragon 660 AIE (full blood version) maximum frequency 2.2Ghz
Adreno 512 650Mhz GPU
6GB LPDDR 4 memory
64GB eMMC 5.1 flash memory
Score comparison Lenovo Z5 Pro (Snapdragon 710), vivo X23 (Snapdragon 670), vivo X23 Magic Edition (reduced frequency Snapdragon 660), Xiaomi MAX3 (Snapdragon 636)
It can be seen from the Geekbench 4 single core that there is a gap between 710 and 670, and it is stronger than the frequency reduced version 660 and 636. In terms of multi-core, the gap between 710, 670 and full frequency 660 is small, and they are still ahead of the reduced frequency versions 660 and 636. The results of 710, 670 and 660 single cores are ladder shaped, and there is little difference in multi-core performance. I have to sigh that Qualcomm's scalpel can control the same multi-core performance and the difference in single core performance when the number of cores is different.
Qualcomm's scalpel is really powerful. The performance of Adreno GPUs is clearly differentiated, and there is no cross level transcendence. The 660GPU is still inferior to 710 and 670, and better than 660 (reduced frequency version) and 636. However, there is a big gap between Qualcomm and its flagship. Qualcomm has always castrated GPUs for good CPUs on midrange SoCs.
Hongmi Note 7 is equipped with 6GB LPDDR4 memory and 64GB eMMC5.1 flash memory. The memory is weaker than Lenovo Z5 Pro and vivo X23. All aspects of flash memory are at the normal level of eMMC5.1. The file system uses ext4, so the random write speed is not as fast as Xiaomi Max3, which uses the f2fs file system.
In terms of performance, the full blooded Snapdragon 660 of Red Rice Note 7 is better than the 660 and 636 of the incomplete blooded version both in CPU and GPU. There is still a gap between 710 and 670 in CPU single core and GPU. Overall performance Snapdragon 710>Snapdragon 670>Snapdragon 660 (full blood version)>660 (reduced frequency version)>636. Snapdragon 710, 670 and 660 have more than these differences. 710 and 670 are 10nm chips. The CPU core is based on ARM A75 architecture. The small core is based on ARM A55 architecture, while 660 is based on 14nm. The CPU core is based on ARM A73 architecture. The small core is based on ARM A53 architecture. Under the same performance, 710 and 670 save more power than 660. Moreover, the 660 does not support LPDDR4X memory, so we can look forward to the upgrade of Hongmi Note 7 Pro to Snapdragon 710 next year.
photograph
Main camera: Samsung S5KGM1 12 million effective pixels, equivalent to 1.6 μ m unit pixel area, can output 48 million pixel photos, F1.8 aperture, 1/2 inch sensor. 12 million photos are output by default (48 million pixels can only be output in professional mode)
Subphoto: Samsung S5K5E8 5 million pixels, 1.12 μ m unit pixel area, 1/5-inch sensor (only responsible for virtualization, not imaging)
The current version does not support the super night view. Xiaomi promises to add the super night view game method through OTA push later, so the super night view is not enabled in this evaluation. 48 million yuan should be manually switched in professional mode.
First of all, let's compare the difference between Samsung GM1's output of 12 million and 48 million. First, the image capacity is less than 4 megabytes, while 48 million has reached 12 megabytes, doubling the capacity. The overall appearance of the photo is the same, regardless of exposure, white balance and saturation.
Zoom in to see the details. The 48 million mode sharpening has a slight sharpening trace. The analytical power is not better than 12 million. On the contrary, the dark part is full of color noise, and the smearing is serious.
These two pictures are also very close in appearance, and the same is true when you zoom in. There is no big difference. There are more 48 million noise points, and the sharpening is obvious. The analytical power is less than 12 million. There are still many dark noise points. In conclusion, the 48 million yuan on the red rice note 7 has not improved much analytical power, and the appearance of the photo is almost the same. On the contrary, the dark part will increase color noise when it is opened. It is recommended to output photos with only 12 million pixels.
Compare the honor V20 (IMX586) with similar parameters
Red rice Note 7 is a bit red. The exposure of Glory V20 was higher than that of Red Rice Note 7, which restored the afternoon of that day very well, and its tolerance was better than that of Red Rice Note 7.
Zoom in to see the details. First, compare the above two 12 megapixel photos, Red rice Note 7 has less analytical power than Glory V20. Note 7 is heavily smeared and has lost dark details. Moreover, V20 shows greater tolerance and has more dark details. Compared with 48 million pixels, V20's analytical power can be said to crush Note 7, and it looks more natural. From the above comparison, it can be seen that the GM1 on red rice in the daytime scene, whether it outputs 12 million or 48 million yuan, is inferior to the glorious IMX586.
Original drawing
Amplification contrast
The appearance of the four machines is similar. The exposure of red rice Note 7 is slightly lower, and the white balance is slightly red. The ultimate analytical power is close to Meizu 15, better than Glory V20.
Nightscape
Amplification contrast
In terms of night view, the brightness of the four machines is almost the same, and the appearance is very good. The performance of the red rice Note 7 is close to that of Meizu 15. The highlight suppression is slightly poor, and the analytical power is not as good as that of Huawei Brothers.
Extreme dim light
Amplification contrast
When it comes to the extreme low light scene, your uncle is still your uncle. Apart from Huawei Mate 20 Pro, Meizu 15's IMX380 is still better. Meizu 15 shows its flagship performance in terms of image brightness, resolution and noise control. Red rice Note 7 is slightly green in white balance, and there is a big gap between Meizu 15 and Glory V20 under extreme low light.
Photo summary: The red rice note 7 comprehensive photo is invincible at the corresponding price. It has high analytical power and good night shooting ability. The disadvantage is poor tolerance and white balance. The GM1 on Hongmi Note 7 is weaker than the IMX586 of Glory V20 in all aspects, but after all, the price of 999 starts. Xiaomi promises to update the super night scene through OTA. There is still room for improvement in the night shot of Hongmi Note 7.
Endurance
4000mAh battery, standard 5V2A fast charging head, supports QC4 fast charging.
The remaining power of the red rice note 7 is the lowest. The current version of the note does not have ideal endurance. 4G Internet access, WiFi Internet access, and video consumption are relatively high, which needs to be optimized by subsequent firmware updates.
summary
The advantages and disadvantages are summarized below
advantage:
The fifth generation of Corning gorilla glass is used to ensure the firmness of the mobile phone screen.
The Samsung GM1 sensor used for the main camera has strong photographic ability.
Support Qualcomm's latest QC4 fast charging.
999 starts with 660 full blooded dragons, which is cost-effective.
Support infrared USB-C。
Disadvantages:
The screen frame has too large a plastic border, which reduces the sense of quality.
The 5V2A charging head is included with the machine. Although it supports QC4 fast charging, you need to pay more for the charging head.
The maximum flash memory is not enough. The maximum flash memory is only 64GB. For some people who like to listen to music and watch movies offline on their mobile phones, 64GB is not enough. However, the expandable TF card makes up for this shortcoming to some extent.
In general, the Red Rice Note 7 has excellent performance and strong photo taking ability. The Bloody Snapdragon 660 has the most balanced price at 999. I think it's worth it. How about you? This is the end of the evaluation. Thank you for watching the whole process.
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