Before the evaluation, let's first look at the Nokia logo on the 830, because the 830 will probably be the last mobile phone with the NOKIA logo. The former leader of the mobile phone industry has changed his name to Yi and married Microsoft. Not only is he a fan of N'Kee, but even I, who never owned a Nokia phone, feel sad.
But ultimately, we need to let go of our sensibility and treat this Lumia 830 rationally. Like the current flagship 930, it has a metal middle frame, 2.5D curved glass on the front, and 1020 Oreo gene on the back. Everything is like Nokia, like Lumia.
Main specifications:
Windows Phone 8.1 operating system, Lumia Denim；
5 inch 720p IPS Display with Nokia Joy Screen technology;
Snapdragon 400 processor, 1.2GHz quad core Cortex-A7+Adreno 305, 1GB RAM;
10 megapixel pure scene camera, Carl Zeiss certified lens, supporting optical anti shake and 30FPS 1080p video recording;
900000 pixel front camera, supporting 720p video recording;
Built in 16GB storage, support maximum 128GB SD card expansion;
Removable 2200 mAh battery, supporting wireless charging technology.
Appearance design:
The 830 is very similar to the 930 in appearance. The aluminum alloy middle frame and 2.5D glass screen are the latest trends in the mobile phone industry. Although Nokia has been using 2.5D screens for a long time, for some reason (you know), this advantage has not been mentioned frequently until now.
The back is made of matte plastic, which has a good grip, enough friction, and no need to worry about fingerprints.
The design of the camera part is similar to that of 1020, but the surface material of the circular part of the 830 camera is glass. The logo of Chunjing and Zeiss is very low-key. Many people may think that the whole part is a camera.
The battery cover of the 830 is easy to remove. After the back cover is removed, the battery, SIM card and SD card can be replaced. Users can also purchase the battery cover of other colors to replace it. However, it should be noted that the 830 battery cover has a wireless charging module. If the back cover is not the original one, the wireless charging may not be used.
At the bottom of the back is the speaker opening. Such a large opening may look very powerful, but the size of the 830 speaker is far less than that. When the back cover is removed, the original appearance is revealed.
In terms of the grip, the 830 performs satisfactorily. The solid aluminum alloy middle frame and the matte back cover with delicate hand feel give a steady feeling. As for the 5-inch screen, it is OK to operate it with one hand.
In terms of the layout around the fuselage, Nokia places the power key, volume key, shutter key on the right side of the fuselage, while there is no arrangement button on the left side.
830 conscientiously used the button made of aluminum alloy, and the independent shutter key was not absent.
The 3.5mm headphone port and USB interface are placed on the top.
At the top of the screen are the regular earpiece, front camera and...... Nokia logo.
Below are the three buttons of WP and a microphone. The 830 does not use virtual buttons like the 735 we evaluated earlier.
830 Except for the black metal frame, the metal frame of other styles is silver.
Screen performance:
The PPI of 830, a five inch 720p screen, is 294. Today, when mobile phones with more than 300 ppi are popular, the result can only be considered as qualified, but fortunately, the 830 screen is colorful, black and very profound, and IPS technology also ensures that the 830 screen can still have correct color performance in a wide range of angles.
The 830 system still has the option of screen color adjustment. The adjustable options include color temperature, color saturation and color bias, which are all very good. However, there are only three levels of brightness: high, medium and low.
In terms of maximum brightness, 830 has reached 533 nits, and the contrast ratio is 1078:1, which is satisfactory.
In the outdoor environment, Nokia's happy screen technology effectively reduces the reflection of the screen, so although the 830 screen brightness has no advantage over competitors, it still has good visibility, but it would be better if the brightness could be higher.
Battery life:
Officially, the 2200 mAh battery built into the 830 can provide half a day of 3G voice call time and 22 days of standby time. In our actual test, the 830's talk time is close to 15 hours, and the web browsing time and video playback time are commendable. However, in terms of standby, the 830's performance is not as good as the official data, So we give a comprehensive endurance score of 68 hours, which means that the 830 can provide more than two-and-a-half days of endurance in medium intensity use, which is not bad, and it can also replace the battery.
Performance:
The performance of the Snapdragon 400 has long been tested to be poor. This old processor is widely used in mid - and low-end mobile phones of various brands, and the specific performance depends on the manufacturer's optimization. For Windows Phone, a system that does not have high performance requirements (except for APP), the Snapdragon 400 can also provide a smooth use experience.
In the BaseMark OS II test, the score of 830 is higher than that of other Lumia mobile phones using Snapdragon 400, and there is no way to compare it with 930 and HTC ONE, which use 800 or 801 processors.
The score of Anthare is similar, with 830 slightly higher than other 400 processors.
In the browser performance test, Windows Phone's IE browser has always been inferior to Chrome, and its performance is naturally inferior to that of Android phones that also use Snapdragon 400.
As for daily use, the performance of the 830 is enough. The 8.1 system is as smooth as butter. Although this processor is old, it will not affect the use experience.
tone quality:
The 830's audio hardware is similar to that of the 735, which means that the 830's audio quality performance is similar to that of the 735, which is not a bad thing for the 830. After the external power amplifier is inserted, we can find from the data that the 830 has a clean output and a wide dynamic range. After the earphone is inserted, the audio channel interference appears and the frequency response curve deteriorates slightly, However, the overall performance of the 830 is commendable for a mid-range mobile phone.
Photographs and videos:
In terms of photographing, the 830 still uses the Lumia camera. Users can manually adjust the white balance, focus ISO、 We are very familiar with the UI of shutter speed and exposure settings. The simple and clear adjustment method and WYSIWYG imaging are both very good.
However, it should be noted that the maximum photo size that 830 can take is 3520 × 2640, and the total number of pixels is 9.3 million. At this time, the photo ratio is 4:3. If 16:9 photos need to be taken, then the resolution is 3840 × 2160, and the number of pixels is 8.3 million.
The static proof of the 830 is very excellent. The exposure and color restoration are very accurate. The picture is rich in detail, the overall sharpness is excellent, and no defects or defocusing are found after magnification. Although there will be a small amount of noise on the picture, it will not affect the appearance of the picture. As for the white balance, the 830 occasionally tends to turn yellow and green, but most of the time, The white balance is very accurate.
In terms of panoramic photos, 830 also performs well. It can take panoramic photos of 35 million pixels at most. The stitching and detail performance are very good. The overall exposure and color performance are also excellent.
We also tried the long exposure function when shooting, but if you want to take good photos with this mode, you must have stable hands or tripods like Mount Tai, or you will definitely be burnt. The shutter time of the sample above is 2 seconds.
In terms of video recording, the 830 can record 1080p video at 30fps at most, and Dolby Digital 5.1 can also be selected as the background sound when recording video.
There is nothing surprising about the UI, and there are also low-frequency filters, which are the same as the previously evaluated 735.
In terms of actual video recording effect, 830 performs very well. 1080p video has full details, color is also very accurate, and white balance and exposure are just right (above is 1080p video screenshot).
Summary:
It's hard to be rational about the 830 phone. Especially after Microsoft announced that Lumia phones to be launched in the future would be branded with Microsoft's logo, the curtain call of the 830 phone can touch the chord of many old mobile phone players called Nokia. Although Nokia will print its logo on other devices in the future, it still feels like something is missing.
The 830 is undoubtedly an excellent mobile phone. It has the most competitive specifications in the same level, excellent workmanship and materials, and excellent appearance design. The 5-inch IPS screen has excellent quality, and the system is as smooth as butter. Moreover, the pure view camera with 10 million pixels is even more powerful after having a ZEISS certified lens.
Perhaps the 830 does not have the impressive specifications and/or appearance of the 930 and 1020, but the most valuable thing about the 830 is that it is a midrange computer that is good in all aspects and has no obvious shortcomings. In terms of photography, it is much better than its competitors. And because of this, the 830 can sit in the Hall of Fame of Nokia.
advantage:
Excellent workmanship and good materials;
The screen performs well;
Moderate and slightly higher endurance;
Smooth operation;
Excellent sound quality, loud enough loudspeaker;
Excellent photography and video recording results.
Disadvantages:
Via
