Dell X50 Pocket PC

The Dell Axim X50 was released as the successor to the X30 Axim Series.  The X50 was also configurable with processor speeds ranging from 416MHz to 624MHz and offered integrated Bluetooth, or both Bluetooth and 802.11b Wi-Fi.

All models in the X50 Series have 64MB of RAM, but ROM chips are available in either 64MB or 128MB capacities.

The X50 Axims have a QVGA transflective display, while the X50v features a high 480x640 3.7" VGA transflective display. 

Dell discontinued the X50 Series Pocket PCs when the X51 and X51v Axims were released.  Dell has since pulled out of the handheld market altogether.