Top 5 smartphones with screen heights

In the segment of smartphones, high-end, the phone companies are not only competing on style and design but the screen resolution is high and the competition fierce. The following will introduce the series "cricket" display is most impressive .

 Nokia Lumia 920

Nokia Lumia 920 is equipped with 4.5 inch screen WXGA (1280 × 768 pixels) with a pixel density of up to 332 ppi. The highlight is the Lumia 920 is the new screen technology called PureMotion HD + with a refresh rate of 60Hz images, help images blurry when moving. Plus technology ClearBlack polarizing filters not only help to reduce the incidence reflections to a minimum, but also include an algorithm to help adjust color and contrast to the surrounding light environment, improve show the sun's light Lumia 920.

In addition, Nokia also added technology applications "Super sensitive touch" ultra-sensitive touch screen on the Lumia 920. Users can operate correctly even when wearing gloves or using ordinary pens, not necessarily the stylus.

 LG Optimus G Pro

LG Optimus Pro G owns the screen True HD IPS + LCD 5.5-inch high-resolution Full HD 1080 × 1920 pixels with a pixel density of 401 ppi. The screen quality is quite good with the G Pro vibrant colors, great viewing angles and high brightness screen helps to easily use under the sun.

G Pro screen looks very like eyes, black display Super AMOLED not inferior. We can say, this smartphone is equipped with every kind of screen quality in the world, more dominant Xperia Z also owns Full HD screen. However, there is a small minus point is that the light sensor of the machine is not operating as intended. It's better you should be able to adjust the brightness to observe a most convenient way.

HTC one

HTC one is equipped with 4.7-inch screen Full HD 1080p resolution, 468ppi pixel density is highest among current smartphone, for sharp image quality, bright. This screen is extremely sharp by using technology called HTC SoLux, to improve image quality and pixel density of 468ppi is forced up. HTC said the screen of one of the most outstanding visibility from all phones that the company generates.

 

According to the experts, the HTC one screen display vivid colors, wide viewing angles and very bright, and extremely detailed look sharp. In this parameter, one is probably the brightest candidate to match the definition of blockbuster Samsung and Apple.

Samsung Galaxy S4

Galaxy S4, like many other high-end smartphones launched in 2013, is equipped with 5-inch Full HD display with a pixel density of 441 ppi impressive. The difference here is pursuing Samsung Super AMOLED technology rather than LCD as the iPhone 5 , Lumia 920, Xperia Z ...

The content on the AMOLED screen difficult to read in sunlight. In return, the Galaxy S4 has a wide viewing angle, brightness and sharpness of the screen does not tilt down much when computer users with different angles.

With 1080p resolution on the device only 5-inch, most smartphone screens are Full HD on a positive impression for the viewer. Each machine can be a little different than when zooming text ... but in general, if monitored by the naked eye, the general feeling was sharp images, smooth and brilliant.

With S4, Samsung has many efforts to colors on the AMOLED display true and accurate, good contrast, and color adjustments provide different modes as Standard, Vivid ... to the user to choose in each case case.

Apple iPhone 5

In addition to elaborate the design is meticulous, equipped with powerful A6 processor and supports 4G LTE connectivity, the screen technology "in-cell" (remove the glass between the LCD panel and touch layer screen) is the focal point increase aesthetics and experience for the user.

Compared with brother 4S, iPhone 5's screen size is increased to 4-inch, and the number of pixels is increased by 18% and achieved resolution 1136 × 640 pixels. In addition, 4-inch screen of the iPhone 5 has up to 326 ppi pixel for the ability to watch HD movies or play a game "was" eye.

Galaxy S4 faster network speeds doubling HTC One, iPhone 5.

Smartphone flagship Samsung works on Verizon (USA) will have double speed compared to the other network.

Mike Haberman, vice president for Verizon says Galaxy S4 will be the first device to support spectrum advanced wireless services (AWS) of this network. Thus, the product will have the data access speed faster than double today's leading smartphones.

However, AWS frequency is not supported at launch time and to use the Galaxy S4 owners will have to update the software to enable the use of this network.

Verizon is using AWS wave is, and they acquired from the cable provider from last year to integrate the next generation network in major markets like New York in the coming months. The expansion will support capacity building of existing LTE networks and devices that allows data access speed faster. Verizon Galaxy S4 distribution is $ 199 with a contract to use the service for two years.

Additionally, the specifications of the Galaxy S4 is similar to the international version currently on the market, including the screen size of 5-inch Super AMOLED, full HD , with a pixel density of 441ppi and is set up to carbon plastic shell design is quite sleek, relatively thin 7.8 mm and weighs 130g. The product supports both 4G and WiFi, Bluetooth . Machine brings the power of quad-core processor, 2GB of RAM, integrated 2MP front camera and 13MP on the back, along 2.600mAh battery.

The note when using android phone battery

The inside of the battery of mobile devices today is a miracle of engineering technology. They bring their energy in that previous generations could not match. However, to fully develop their strengths in order to prolong battery life, you also need to know how to use properly.

1. To charge the tablet quickly as possible, use the charger supplied or designed exclusively for machine

iPad and other tablets with the original battery is quite large, so we need to have large output charger to reduce charging time. For example, the iPad charger adapter output is 2100mA, nearly double the figure of a conventional USB port. Of course, the difference is very big offer. In tests of the technology page TechHive , to charge the iPad with original charger takes 5 hours 9 minutes.Meanwhile, if you use the charger iPhone 5 , you have to take 13 minutes to 10 hours to fully charge the iPad by chargers iPhone with maximum output is 1000mA. Even with the travel charger USB popular, resulting in more than 24 hours.

From the results of the above tests, can easily see that in order to reduce the charging time down to a minimum, you should use the original charger or are specifically designed for your device. Some facilities will not allow the charging circuit capacity of the charger, unless the charger contains a special chip validation. If not, the speed limit will be charged at very slow. For example, if you try to charge the charger with the iPad 4 of Galaxy Tab 10.1, you'll have to spend more than 19 hours to complete, although the output of the charger is 2 equivalent. That's because iPad 4 does not "know" charger Samsung can pass large currents, and therefore has limited current lows. In the opposite case, the result is the same: 4 for iPad charger to fully charge the Galaxy Tab 10.1 takes 15.5 hours, whereas if you use the original charger takes only 4 hours 46 minutes.

2. You can use any charger for phones

Phone ingots using lower capacity battery tablet so you do not need to have high output charger.So you can use any charger to charge your phone without worrying about long charging time too many. Try charging with the iPhone charger 5 different intervals ranging from 4 minutes to 2 hours with HTC charger for 59 minutes to 2 hours with Samsung charger. With original charger, you need 2 hours 16 minutes to fully charge the iPhone 5. So you will not suffer too much time when using a third party charger from the phone charger or other small devices.

3. Use the USB port on the computer to charge

If you do not carry your charger, you can charge the device via USB port. USB 2.0 has two types: conventional and for charging. The difference between the two types lies in the amount of energy they can pass through. A USB port is usually only output at 100mA, while a charging port can transmit up to 500mA. That's why when you plug your computer into a USB port, the machine has not been charged or charging very slowly. Although many laptops are usually equipped with USB port and USB charging port, many manufacturers have not checked the ports and the only way you get to know them as a test each port. On a modern laptop, the USB port can also output currents up to 1100mA when you plug your device into. Take a closer study of the USB port on your computer and the power it can deliver before using it to charge the handset .

In addition, although USB 3.0 port can deliver higher currents than USB 2.0 at 900mA, this can only be achieved if your handset also supports USB 3.0. If you plug a USB 2.0 device into a USB 3.0 port, the area will still stop at 500mA USB 2.0 as usual.

If you use the USB port is not powered, electric current will be evenly divided among all ports and not enough for you to charge your machine. A USB port can supply power to the maximum flow to all areas and each port, helping you to charge the phone better.

4. You can use any microUSB cable to charge the phone, if the phone has a microUSB port

With the machine is equipped with microUSB port, you can use any microUSB cable to charge, not necessarily a particular cable type.

5. First time charging, fully charged and then go to the machine completely out of battery

First time charging very important for a device: it helps to regulate the battery and cause the machine to familiarize yourself with the behavior of the battery. So when the first charge, plug the charger for at least 12 hours, then pulled out and used the machine to charge the battery ran out.

6. You can safely charge the phone overnight

Pin on modern mobile devices are equipped with electric current control circuit, so you should not need to worry if plugged in a long time. When the battery is fully charged, the battery management will calculate the current needed to keep the battery fully charged without being excessive. This is a good thing because if the overcharging, Li-Ion battery will explode.

7. Sometimes you should rinse and then fully charge the battery

Li-Ion batteries do not have the phenomenon of "memory effect" (memory effect) Nickel Cadmium battery as the older generation, so rest assured you can still charge the battery even when not empty. However, the battery manufacturer still recommends discharge and then fully charge the battery clean back at least 1 month / time. This will help maximize battery life.

8. "Cherish" the battery

If you "treat" good with cell batteries, they will rewarded with an annual service. But if not, you will not get the best from them by the battery is inherently a dangerous material. You can see them as chemical bombs ticking, so it's best to replace the battery in the machine or in a box to avoid collisions.

9. Replace the battery every 2 years

When the batteries were long, the ability to keep its power and gradually lost the use of your equipment also dropped. Long process, but this can not be avoided as a result of changes in surface chemistry inside the battery. Anyway you can rest assured your battery in a few years: Apple said the iPad battery will retain 80% of the maximum power after 1000 charge cycles. Other manufacturers make similar claims.

When replacing the battery, you should note not throw old batteries in the trash by the components in batteries are toxic and flammable.

10. Handling problems when charging by USB with just a few simple steps

If you're trying to charge the phone using the USB port, but not a tool of the Windows operating system will help you to improve the situation. To use them, please go to  Control Panel / Device Manager  and select  View / Devices by Connection . Then click on the root menu (also the name of your computer) and press *. A list of all devices that are connected to your computer will appear.You need to scroll down until you see the  Generic USB Hub , right-click it and select  Properties .

Get Access Card  Power  and you will see a list of devices that are connected via USB port to power the devices that are provided. Based on this information, you will know whether your mobile device is fully charged quickly or slowly. If power is only 96mA, as shown below, even though your phone is charging but the report will certainly take a long time to fully charge.