In the summer of 15 years, I bought my first computer. I always loved the Surface series of computers before the college entrance exam. I liked its thinness and design. My parents saw me as an XPS computer because of it. The narrow border and relatively low price/performance ratio (at that time we had here i5+128GB machine seems to have sold 7,000 bucks (((φ( ◎ ム◎;) φ))))), and the price of the Surface pro3 was 5888, Jingdong's price is still cheaper, so he decided to buy it.
When Pro3 was used for nearly a year, the home computer also faced a new generation. Therefore, with the belief, Pro5's i5+256 version was purchased, and Pro3 was placed at home for parents to use.
At that time, I also purchased online:
Microsoft Designer Bluetooth Designer Fashion Ultra-Thin Home Office Wireless Bluetooth Mouse 169 Computer Accessories Lynx Select Direct Links 
ESR Surface Pro 4 HD Film Transparent Screen Protector Film Microsoft Surface Pro4 Dedicated Protective Film 19.9 Yuan Jingdong Direct Link 
ESR New Surface Series Surface Pro 4/Pro 3 Inside Waterproof Tablet PC Case Portable Laptop Bag Magic Magic Black 89.9 Yuan Jingdong Direct Link 
ESR Surface Pro 3 Tablet PC Film Japan HD Transparent Film 2 Pack for Microsoft Surface Pro3 12 Inch 49.9 Yuan Jingdong Direct Link 
Thickness comparison
The appearance of two surfaces
Since it is not a performance evaluation and Pro4 has been available for a while, it does not need CPU-Z or other professional software to introduce parameters. 
specification
specification
First, the feelings
Both of them are very smooth to use. Without using any security assistants and optimization gurus, only the built-in Defender is used, and two generations of products are rarely dead. The smoothness of the SSD has caused me to have a great disgust with the school computer's machinery. The SSD upgrade to the computer is definitely not merely the increase in the boot speed, but in various aspects and in various aspects.
The biggest advancement between Pro4 and Pro3 is the amount of heat. Usually there is no fan sound when using the office or listening to the songs. Pro3 will always have a fierce fan turn. Although the thickness and weight do not improve much on the data, Each of them held them in one hand and the difference was still felt.
Second, life
In terms of battery life, Pro4 and Pro3 have performed well. Pro3 can match two games of lol after a power outage. It can also have about 20% of the remaining battery power. Pro4 can stick to one during my summer primary school period. After using Dreamweaver and Firefox in the afternoon, there is still 30% of electricity. The surrounding buddies silently plugged in the charger. Hahaha
Third, the design
Pro4 escaped the era of win8, so Pro3's virtual keys disappeared into the era of Pro4, and the volume keys were also adjusted from the side to the side of the power button. The performance of the stylus was even more perfect, and it could be adsorbed on the left side of the computer. My mother is no longer afraid that I can't find the stylus.~~ The keyboard changes the most quickly - The gap between the keyboard keys is further enhanced. The keys have also been slightly increased, and the area and feel of the touchpad have been improved. Obvious improvement, more comfortable to use, reduce the possibility of false touch, Fn key from the right to the left, more in line with the use of habits, but one thing is not very clear, why the Fn light is the F key, and the extinguishment is the function key This is inconsistent with traditional usage habits.
Surface pro4 keyboard
Two-generation keyboard comparison
Fourth, insufficient
Common problems: The keyboard is more expensive (well, I'm poor), and materials like suede are easily dirty, especially at the connection to the machine.
After experiencing the Microsoft Redstone update, after the Pro4 unlocked with Windows hello, the CPU usage rate of the PC remained high, so that the fan started to run continuously, resulting in relatively loud noise. After Baidu learned that it was due to various drivers after the update, and later, Several versions of the update have not improved, so that I have not yet enabled windows hello again.
And Pro4's rear panel material is softer than Pro3, resulting in more serious wear and tear, but had to buy a protective film on a certain treasure, it is not too late.
Purchase History
Surface pro4 back
If you don't play big games or use professional software, the surface is definitely a computer that won't disappoint you. It will absolutely surprise you in terms of endurance, fluency, and screen quality.
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