Review: Nokia 6680 3G
Nokia has made some great three g phones since their introduction and the Nokia 6680 is no exception. Maybe not the most aesthetically pleasing phone on the market but it has some great features that make it one of the best mobile phones available.
One of the standout features of the Nokia 6680 is that it has two built it digital cameras, a 1.3 megapixel camera with 6x digital zoom on the back of the phone and a 640×480 VGA camera in the front with a real time video sharing application for video conferencing. It’s the perfect mobile phone for those who have many different imaging needs, from taking still pictures, to making videos and video phone calls.
The screen display is 262K colour with a resolution of 176 x 208 pixels, which is pretty good for a phone and works great for pictures and video calls. The phone has a built in light sensor that will automatically adjust the brightness levels of the screen if you are not using it, to save on battery drain.
Like most 3G phones, this phone comes with bluetooth technology built-in, comes with Real Player as the on-board media player, as well as Java. For memory expansion, the phone comes with an RS-DV-MMC 64 MB memory card. On the memory card are many useful applications for use with the 6680 including Nokia Wireless Keyboard, games, a photo editor, Adobe Reader and Kodak Mobile for printing all the pictures you take with the phone.
Because the 6680 is a 3G phone, it is much faster than previous generation mobile phones, capable of all the high speed downloading, data transfer and web browsing you would expect from a 3G mobile phone. 3G technology makes speeds over 2mb/s possible, which is the best available for mobile phones. Perfect for downloading videos, songs, ring tones and any other types of files you might want.
All together, the Nokia 6680 is a very good mobile phone but a great 3G mobile device for imaging and communication both. If you take pictures on a daily basis or need a phone capable of video conferencing, you definitely can’t go wrong with this model. It’s imaging dynamo is a device like no other on the mobile phone market and might just be the right phone for you.
Tags: 3g mobile phone, 3g phone, 3g phones, 3g technology, Bluetooth, mb memory card, mobile device, mobile phones, Nokia, nokia 6680, nokia wireless, Three G PhonesRelated posts
Three G Phones And Bluetooth
Bluetooth is a high speed, low powered wireless link technology that’s designed to connect to three g phones or other portable equipment together with little to no work required by the user. Unlike infrared, Bluetooth doesn’t require line of site positioning to work.
Current prototype circuits are contained on a board that is 0.9 cm square, with a much smaller circuit board being developed.
When one Bluetooth device comes in contact with another, they will automatically exchange addresses and details of capability. Then, they can establish a 1 MB link with security that they will use as required. The protocols involved with handle both data and voice, with a very flexible topography.
The technology achieves its goal by embedding tiny, non expensive short range tranceivers into the devices available today. The radio operates on the 2.45 GHz frequency band, and supports up to 721 KBps, along with three voice channels.
Each devices offers a unique 48 bit address from the IEEE 802 standard, with the connections being point to point or multipoint. The max range is 10 meters, although it can be extended to 100 meters by increasing the power. The devices are also protected from radio interference by changing
their frequencies, also known as frequency hopping.
What’s important, is the fact that Bluetooth devices won’t drain battery life. The specification targets power consumption of the device, limiting the drain on the battery. The radio chip will consume only 0.3mA in stand by mode, which is less than 5% of the power that standard phones use.
Bluetooth will also guarantee security at the bit level. The authentification is controlled by the user via a 128 bit key. The radio signals can be coded with anything up to 128 bit. With the frequency hopping, Bluetooth is already very hard to listen into.
The baseband protocol is a combination of both circuit and packet switches. Slots can be reserved for synchronous packets as well. Each packet will be transmitted in a different hop frequency. Normally, a packet covers a single slot although it can be extended to cover up to five slots.
Bluetooth can also support data channels of up to three simultaneous voice channels. Therefore, it’s possible to transfer the data while you talk at the same time. Each individual voice channel
will support 64 KB.
From a technical standpoint, Bluetooth is very different indeed. It’s the best wireless method in the world, surpassing even infrared. For communication on the go, Bluetooth is indeed very hard to compete with.
Tags: baseband protocol, Bluetooth, bluetooth device, bluetooth devices, Three G Phones, wireless link technologyRelated posts
Three G Phones: Blackberry Bold
If you’ve been in the market for Three G Phones, have a look at The BlackBerry Bold. It appears to be a great smartphone with few drawbacks.
The Bold looks sleek with its black color and chrome trim. The back is textured to feel like leather, and the 3.5 inch display has a more crisp and vibrant display than most other phones in its class, including the iPhone 3G. The Bold is sturdy, but it’s bigger than previous BlackBerry versions and is definitely larger than the iPhone 3G. BlackBerry loyalists will be happy to note that the Bold’s design stays true to previous models, but still has manages to look modern.
Among the Bold’s features, there is a 2.0 megapixel camera with digital zoom and built-in flash, a QWERTY keyboard, and tethered modem capability. The camera is nothing special, as the old BlackBerry 8800 model had a camera with the same amount of megapixels. For whatever reason, RIM decided not to improve the camera quality. The QWERTY keyboard is one of the phone’s stellar features. Email and texting are a delight with the easy to use keyboard. The keys are backlit, and even people with large fingers should be able to type almost effortlessly.
As far as battery life goes, the Bold can last up to 13.5 days in standby and 4.5 hours of talk time. I believe these estimates to be on par with most smartphones in the same class. In fact, these times are either better than or equal to the battery life of a 3G iPhone.
Included accessories with the phone are a USB cable and wall charger. The Bold has 1GB of on-board memory, and if that’s not enough, microSD memory cards are supported. A maximum of 8GB can be added with a high-capacity microSD card.
Connection-wise, the Bold supports Wi-Fi, 3G, Bluetooth, and built-in GPS. Another area where the phone shines is its native multimedia support. The media player has a clean interface, and the phone natively supports DivX, XviD, H.264, and WMV3 video formats. Audio format support is common with 3GP, MP3, WMA9, MIDI, and AAC.
If you’ve never owned a BlackBerry, you definitely can’t go wrong with the Bold. If you already own a BlackBerry, the Bold is the perfect upgrade choice. The phone’s screen and keyboard really provide a pleasant user experience, and the multimedia support is top notch. The only major flaw in the phone is the low quality camera, but the rest of the phone’s features certainly make up for it.
Tags: 3g phones, blackberry 8800, Bluetooth, h 264, iphone, megapixels, modem capability, qwerty keyboard, smartphone, smartphones, texting, Three G Phones