Sharp GX17 PAYG bluetooth phone £27.95 delivered from Vodafone
Plus £5 back through Quidco, so £22.95 potential cost.
Bargain price for pretty good, but underated phone. Despite Vodafones features stats denying it, I believe this does have Bluetooth - so possibly cheapest enabled phone going.
Features of the Sharp GX17 include:
VGA digital camera (640 x 480 pixels) with 4x zoom
Display: TFT, 65,000 colours, 120 x 160 pixels
40-voice polyphonic ringtones
Messaging: SMS, MMS, email (POP3)
T9 Predictive text
Connectivity: Bluetooth 1.1 (voice/data), USB, IrDa
WAP, GPRS class 10
Size: 46 x 107 x 17 mm
Talktime: 230 minutes
Battery standby: up to 290 hours