Sony Ericsson K750
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| Sony Ericsson K750i | |
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| Screen | 176×220 pixels (QCIF+), 262,144 (18-bit) Color TFT LCD |
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| Ringtone | Polyphonic Sound 40 voices, Real tone (MP3/AAC) |
| Memory | 34 MB Internal, 1 Memory Stick Pro Duo slot, 64 MB Memory Stick Pro Duo included |
| Networks | GSM 900/1800/1900 |
| Connectivity | GPRS, HSCSD, Bluetooth, IrDA, USB |
| Physical size | 100 × 46 × 20.5 mm (3.9 × 1.8 × 0.8 inches) |
| Weight | 99 g |
The Sony Ericsson K750i, introduced in 2005, is a mid-end mobile phone, the successor to the now discontinued K700, and which was succeeded by the K800i in Q2 2006.
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[edit] Design
The K750i is a candybar style phone that weighs 99 grams (3.5 ounces), with its buttons that can be used with any finger. It has the 'dual-front' design common to most Sony Ericsson mobile phones since the T610, with the back of the mobile phone designed like a digital camera and intended to be held sideways to take photographs. The K750i is available in three colours, Oxidized Black, metallic red and Blasted Silver (the latter of which is exclusive to Vodafone in the United Kingdom) with a red version later released. The central joystick button is used for selecting options and navigating menus, with the "C" button as an 'undo' or 'delete' button, and the arrow-labelled button as a 'return' or 'back' button. The two buttons labelled by white horizontal lines, known as 'hotkeys' or 'soft keys' perform the function of making binary decisions, labelled on the phone's display. The button in between of these 'soft keys' acts as a shortcut key, which brings up a user-customisable shortcut menu when pressed. The on/off button is located on the top of the phone next to the IrDA port.
There is one side key on the left of the phone; when pressed in standby mode, it opens either the RDS FM radio or the Media Player as selected by the user, allowing playback of MP3/AAC audio files, and 3GP/MPEG-4 video files. The RDS FM radio has 20 user-configurable presets. The phone also features Sony's Mega Bass technology. A press of this button in media player mode plays or pauses the selected media. The left-hand side of the phone also houses the Memory Stick PRO Duo slot for external solid state memory, which is protected by a rubber cover.
On the right-hand side of the phone there are three keys - two for controlling volume, skipping through tracks in the Media Player, changing radio channel, and zooming in and out when in camera mode. If the button is pressed when the headset isn't attached the phone displays a phone status screen showing profile, memory usage, battery level, and, on some mobile networks, phone number. The included handsfree headset is also required to listen to the radio since it functions as the antenna.
[edit] MP3 & connectivity
MP3 support is good, but HE-AAC (aka AAC+) support is patchy. When tested with Nero's standalone encoder (build 26/5/06), HE SBR was ignored, HEv2 SBR was played but in mono. Only LC decoding works properly.
The phone can also be used as a Bluetooth GPRS modem. According to the Sony Ericsson website, the K750 has a talk time battery life of 9 hours and a standby time battery life of 400 hours.
[edit] Modding
Since K750i and W800i are essentially two phones with exactly same hardware specifications, soft modifications are available to convert a K750i to a W800i by using flashing software and the firmware files of the W800i model. Such modified phone will be able to use the Walkman feature which is available to W series phones only.
Such phone can also use the flight mode option which allows the phone to work only as a media player while other functions, like cellphone radio system, are turned off. This option is essentially usable when in places where mobile phone transmitters must be turned off.
This modification will revoke your model from the guarantee even if it still exists in guarantee period.
[edit] Price
Since the release of its successor, the market price has dramatically fallen and is currently available on a UK pre-paid network for £39.99. In Ireland, the current price is €79 on O2 network. In Australia, it is about $100 or $200 depending on different carriers.
[edit] Variants
- D750i - T-Mobile branded version of the K750i with the same case design as the W800i but in blue and white.
- K750c - Mainland China version: Tri Band 900/1800/1900 MHz GSM for Mainland China.
- K750i - International version: Tri Band 900/1800/1900 MHz GSM for all regions except Mainland China.
- K758c - China Mobile branded version: Tri Band 900/1800/1900 MHz GSM for Mainland China. Comes with the Walkman earphones and 512 MB Memory Stick normally bundled with the W800.
- W700i - Update of the W800i with a new case color scheme but with a less sophisticated camera without auto-focus and a 256 MB Memory Stick Pro DUO instead of a 512 MB.
- W800i - K750i rebranded under the Sony Walkman line with a slightly different enclosure and more advanced music player software. Most significantly, the software features a "flight mode" as previously seen on P-series Sony Ericsson smartphones (i.e. the P900, P910, P990, P1), which allows the phone to be safely used as a media device only, switching off the cellphone radio system, as required on airplanes. The bundled earphones are of a different Sony design which sits more deeply within the ear than the standard in-ear design supplied with the other models. The W800i should not be confused with the forthcoming K800. K750 handsets can be upgraded with the W800i firmware using 3rd party software to offer these extra features.
- W810i - Updated version of the W800i Walkman mobile phone, adding quad-band GSM and EDGE along with a newer firmware generation equivalent to that of the W550i/W600i and W850i. The W810i has one disadvantage relative to the earlier K750i/W800i models, and that is the absence of an active lens cover. You cannot activate the W810 with a simple sliding open of the shutter. This leads to another fault, the absence of a shutter cover means the lens is more exposed to scratches.
[edit] External links
- Official K750i website
- FoneWiki for K750i
- HOW TO: Dismantle a Sony Ericsson k750i and fit a new casing
- Upgrading K750 to W800 software (unofficial hack)
- K750 running W800 firmware (pictures and differences)
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