Number of retailers
Second generation network (2G) is the most common network type, and includes GSM and GPRS. 2.75G is often of EDGE/EGPRS type. Third generation (3G) includes UMTS (W-CDMA) and is fast (useful for mobile internet).
PDA's are small handheld devices that combine computing, telephone, Internet and networking features. PDA Phones are PDA's with more phone capabilities. Smartphones' features are usually more oriented towards mobile phone options than the PDA-like features.
Still image resolution
Still image format
JPEG / JPG
DivX, FLV, H.263, H.264, Matroska (MKV), MPEG4, WMV, WMV9 HD (VC-1), Xvid, 3GP/3GPP
Power & Battery
AAC, AAC+, AMR, eAAC+, FLAC, MP3, OGG Vorbis, WAV (PCM), WMA
Number of colours
Integrated memory size
Supported memory media