Like the Propel, Propel Pro is a slider with full QWERTY keyboard when opened, but it is a smartphone, running on Windows Mobile 6.1 Standard operating system. It features color display, microSD memory slot, music player and organizer.

Network Type
GSM Quad-band phone capable of global roaming (850/900/1800/1900 MHz)
UMTS dual-band American 3G (850/1900 MHz)
GPRS/EDGE/UMTS/HSDPA 1.8 Mbit/s/HSDPA 3.6 Mbit/s
3G Capable
Weight 4.83 oz (137 g)
Battery Type Li - Ion, 1440 mAh
Talk 6.5 hours (390 mins) of Talk time
Standby 288 hours (12 days) of Stand-by time
Main Display Resolution 320 x 320 pixels
Type 65 536 colors, TFT
Physical Size 2.55 inches
Camera Resolution 3 megapixels
Auto focus, Digital zoom
Multimedia
Video Playback
Video player
Music Player MP3, AAC, AAC+, WMA, WAV
Memory Slot microSD/microSDHC
OS Windows Mobile Standard; 6.1
Memory 28 MB RAM / 256 MB ROM
Predictive Text Input Yes
Full Keyboard QWERTY
Internet Explorer Mobile
USB Yes
WiFi 802.11b/802.11g
Bluetooth 2.0, Stereo Bluetooth
Other Features
PhoneBook Capacity depends on system memory, Multiple Numbers Per Contact, Picture ID, Ring ID
PIM Alarm, Calendar, Calculator, TO-DO, Stopwatch, World Clock, Notes, Memo, Currency Converter
Voice Dialing, Commands, Recording, Speaker Phone
Email IMAP/POP3/SMTP/Microsoft Exchange
GPS Yes