Chris De Herrera's Windows CE Website

Discuss.Pocket PC FAQ Forum

Add Pocket PC FAQ to your Favorites
RSS    RSS Feeds
Wiki    Lost?
Custom Search
Subscribe    Print
Table of Contents
Mobile Format

[an error occurred while processing this directive]

Pocket PC Magazine Best Site

Website Awards
Website Updates

By Chris De Herrera 
Copyright 1998-2007
 All Rights Reserved
A member of the Talksites Family of Websites

Windows and Windows CE are trademarks of Microsoft
and are used
under license from owner.
CEWindows.NET is not
associated with Microsoft 

All Trademarks are owned
by their respective companies.

Siemens SX45 Review
By Mark Elliott, Management Consultant and gadget phreak, UK.
 Copyright 2001
 Version 1.00  Revised 10/24/2001

[an error occurred while processing this directive]

A New Milestone


The Siemens site says The SX45 � a new milestone in today�s communication.�  This may be a milestone for Siemens, but I was surprised to see they had chosen to adopt an established Pocket PC machine (the Cassiopeia E125) for this package rather than use their technology know-how to develop an iPaq beating device � now that would steal the market. However, this is a pretty neat package � and it works !

Siemens kindly handed out some of these machines at a recent Microsoft conference telling us they were pre-release stock (official release seems to be due in a Jan 2002). I now have the dilemma to address�.do I replace my trusty Palm V with this monster�.can it be as portable and user friendly ?

Same old Same old�

I will refer you to some of the excellent reviews of the E125 found on this and other sites for details of the E125 � from what I can see, the CE device is exactly the same as the retail E125. Usual stuff built around the MIPS VR4122 150Mhz cpu, 32Megs of onboard RAM, expansion in the form of an SD/MMC card slot or a CompactFlash card.

The SX sports a lovely 240*320 TFT touch screen which really does look great. These have come on a long way since the early HP 600 series CE devices with their weird �double layer� plastic feeling touch screens. This one feels industrial strength and has no effect on the clarity of the display.

Onboard sound is clear, and pretty loud. Through the headphones is very loud.


A cursor wheel and three function buttons are located on the front with a thumb (more like finger) wheel on the side next to power and voice record buttons. An extra switch is provided to disable the cell phone system so you don�t bring down an airplane whilst playing Doom. 

Usual PocketPC software is installed : Word, Excel, Contacts, Calendar etc and a Siemens app for using the celluar phone.

Look and feel

The first impression I had was how large the whole device feels. I�m too used to my Palm V I guess, and given the size of today�s cellular phones (I use a Nokia 8850) I was expecting something a little sleeker and genuinely �pocket� sized. It does not pass the �can it hide in my jacket pocket� test, unless you�re the size of Big Bird.

The only outward difference with the E125 is the stubby aerial fixture on the top left of the casing (about 1� high) which is solid and could not be damaged easily. The SX45 feels well built (typical Germanic build quality) and will probably survive a few arguments with the floor. The casing is a trendy two tone grey/brushed chrome affair that will look nice on the seat of a BMW ZX3 or next to your Sony Vaio.

Beam me up Scotty







Connection to the outside world comes in a variety of options:

       Serial connector using provided cable for USB/RS-232 to your PC

       Infrared Port (to another device or Infrared modem on a cell phone)

       CompactFlash (using a modem or Ethernet card)

       Built in GSM Modem

All seems fairly standard. The USB connection worked fine. So did the short IR beaming test I did (using ActiveSync to my laptop). I haven�t access to any Flash Cards other than a 256Meg memory card which works fine.

ActiveSync V3.5 installed, worked. Need I say more ?

One big omission in my opinion is the lack of 3.5mm audio output. This would be very useful for linking to external amplification, recording equipment, or in-car operation.

To GSM or not to GSM

Europe and Asia have pretty much settled on the GSM standard now for cellular phones. The 1800/900 Mhz frequencies supported by the SX45 are ok for Europe/Asia, but no good for the US (who use 1900Mhz) so that�s a point towards keeping my Nokia 8850.

Secondly, GSM providers are all upgrading to GPRS (Packet Radio) which provides up to 19kbps transfer rates and an �always on� connectivity � which is ideal for emails and messaging. Unfortunately the SX45 I have does not have GPRS and the nice man from Siemens I spoke to could not say if/when GPRS would be included. 2 points down.

The final straw for me in the decision to adopt this as my main cellular phone is the inability to use it without the supplied headphones (which do look a little naff). When the SX45 starts ringing and you dive for your bag (as it won�t be in your jacket pocket), by the time it takes to locate the headphones, plug them in (to the SX45 and your ears) the caller will be in voicemail land. That�s strike 3.

Oh � and there appears to be no way to load phone number entries from your SIM card into the contact database. Now this is a bad oversight by Siemens as most folks rely on the 50 or so stored numbers on their SIM.

Dial a Bug 

The Siemens Pocket Dialer is a rather nasty application supplied to manually control cellular phone operation. Integration with the contacts database is clumsy and the app crashes if you load too many entries in the contact book. This is probably a bug in this early release of software. I have a call logged with Siemens to find out.

Hopefully an improved version of this will be released, along with the ability to upgrade it. It does allow different skins to be loaded; an SDK for custom skins would be cool.

Sounds Kinda Cool

Audio quality is pretty impressive. The built in speaker is clear and plenty loud enough. The supplied headphones have a reasonable frequency range. They use a proprietary connector which plugs into the bottom of the SX. A button is located on the microphone clip for call pickup/disconnect.

64/96k WMA files sound fine for portable use. I couldn�t hear that much difference. Occasionally I could hear slight interference during quiet sections of music, seemingly as the CompactFlash was accessed.

The sound recorder lets you record from the built in microphone or for ultimate fun, both sides of a phone conversation, which can be played back whilst in conversation. Confuses the hell out of folks when they hear what they�ve just said.

Phone conversations sound very clear (much better than standard cell phone ear pieces) and callers tell me I sound very good also.

Surfer Dude

Setting up a dial up connection to my ISP was easy � simply select the internal GSM modem from the device options. Connectivity has proven very stable (I even surfed as a passenger in the car). Web/WAP browsing is acceptable (if not a little slow at 9.6k). Siemens claim up to 24k data rate through the GSM modem, but all UK providers still only support 9.6k (until GPRS comes out).

SMS messaging has been cleverly integrated into the mail system, and messages appear as a category of email. Now you can send/read your SMS messages with the ease of email.

Email download from the internet worked fine. Updates from Avantgo worked fine. For true mobile net access this is a pretty cool device.


So far, I have been able to successfully run :

       Pocket Doom (plays very well, good fps and sound)

       Pocket TV (plays movies at around 10-15 fps, very watchable, won�t go full screen though)

       Intellisync and Cadenza synching with Lotus Notes email, contacts & calendar

       Media Player 7.1 (plays audio wma files ok, struggles with >128k MP3s and video)

       Avantgo (both offline browsing and wireless via the cell phone)

Pocket Quake shows how, even with a 150Mhz cpu, this machine will struggle when pushed. It is so slow it is unplayable. Even audio playback through media player will stutter if you start another simple app at the same time. Basic functions (like calendar or Word) will multi-task happily.


The practical nature of this machine is no different to any other of the current range of Pocket PCs. The integral cellular phone appears to add no more bulk to the SX45, and the battery life is reasonable (about 8 hours or so). Heavy use of the phone will obviously reduce this lifespan, but I can�t see users leaving their regular mobile phone at home when they�re out and about with this device.

With the SX45 in it�s supplied fabric sleeve, and your mobile phone to stow away I don�t think the SX45 gives you true �on foot� portability. Take away the games, gizmos and gimmicks and the Palm still wins for me for the things I really need at work.

And the Man from Del Monte, he Says�

This is a cool, fun device � gadget heaven. It is well built and does what it says on the box. The display is a pleasure to use and the cellular phone has been very well integrated. All current interface/storage options have been included (with the exception of an audio out socket). I will continue to get plenty of hours of fun from this machine.

The success of this device in the marketplace depends heavily on the implementation of GPRS in the final retail version. This will put it ahead of others, and really put the benefits packet radio into your pocket. The choice of the MIPS based architecture is debatable, as drawbacks include any future flash upgrades (say to Pocket PC 2002).

The current prices advertised indicate the SX45 will sell for around 1000 Euros. That�s very expensive, especially as an iPAQ can be bought for half the price, and is arguably a much better Pocket PC architecture. Given the impractical use of the SX45 as a regular phone, I�d currently go for an iPAQ and a mobile with a built in IR modem � with change left to cover all the airtime you�ll use.  

Still fun though.

[an error occurred while processing this directive]

Return to Chris De Herrera's Windows CE Website