Fly DS400 vs. Fly DS420

	Fly DS400	Fly DS420
Overall	Fly DS400	Fly DS420
Usability	Fly DS400	Fly DS420
Display Resolution	176x220px	176x220px
Display Color	256K	256K
Display Technology	TFT	TFT
Input / Navigation	Navigation Joystick / Button Numeric Keypad
Talk Time	7h	4h
Stand-by Time	100h	300h
Vibration	Available	Available
Ringtones	Polyphonic	MP3 Polyphonic
Hardware	Fly DS400	Fly DS420
Processor Speed	Proprietary	Proprietary
External Memory	microSD	microSD
Internal Memory	10MB or less	10MB or less
Camera Resolution	1.3 Megapix	2 Megapix
Video Recording	Available	Available
Video Telephony	Available	Available
Battery	800 mAh	1050 mAh
Other Functions	Dual SIM
Software	Fly DS400	Fly DS420
Operating System	Proprietary	Proprietary
Java		MIDP 2.0
Connectivity	Fly DS400	Fly DS420
Compatible Networks	GSM 1800 GSM 900	GSM 1800 GSM 900
USB	v1.1	v2.0
Bluetooth	v2.0	v2.0
Radio	FM
GPRS	Class 10	Class 12
Ergonomics	Fly DS400	Fly DS420
Dimensions	109.5x47.5x16.1mm 4.31" x 1.87" x 0.63"	111x49x15mm 4.37" x 1.93" x 0.59"
Height	109.5mm (4.31")	111mm (4.37")
Width	47.5mm (1.87")	49mm (1.93")
Depth	16.1mm (0.63")	15mm (0.59")
Weight	96.5g (3.4oz)	97g (3.42oz)
Form Factor	Candy Bar	Candy Bar
Various	Fly DS400	Fly DS420
Ballpark Price Estimate	Not Available	Not Available
Reviews	Not Available	Not Available

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