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Samsung A837 Rugby

Samsung T639

Network
Technology	GSM / HSPA	GSM / UMTS
2G bands	GSM 850 / 900 / 1800 / 1900	GSM 850 / 900 / 1800 / 1900
3G Network	HSDPA 850 / 1900	UMTS 1700
Speed	HSPA	Yes, 384 kbps

Launch
Announced	2008, September. Released 2008, September	2007, October
Status	Discontinued	Discontinued

Body
Dimensions	100 x 52 x 23 mm (3.94 x 2.05 x 0.91 in)	94 x 38 x 17 mm (3.70 x 1.50 x 0.67 in)
Weight	132 g (4.66 oz)	91 g (3.21 oz)
SIM	Mini-SIM	Mini-SIM
	MIL-STD-810F compliant salt, dust, humidity, rain, vibration, solar radiation, transport and thermal shock resistant

Display
Type	TFT, 256K colors	TFT, 256K colors
Size	2.0 inches, 12.6 cm2 (~24.2% screen-to-body ratio)	2.2 inches, 15.2 cm2 (~42.6% screen-to-body ratio)
Resolution	176 x 220 pixels (~141 ppi density)	176 x 220 pixels (~128 ppi density)
	External 1" monochrome display	Second external, monochrome display (32 x 128 pixels)

Memory
Card slot	microSD (dedicated slot)	microSD (dedicated slot)
Phonebook	1000 entries, Photocall	1000 entries, Photocall
Call records	30 received, dialed and missed calls	30 dialed, received, missed calls
Internal	128MB	30MB

Main Camera
Modules	1.3 MP	1.3 MP
Video	176x144@15fps	Yes

Selfie Camera
Modules	No	No

Sound
Loudspeaker	Yes	Yes
3.5mm jack	No	No

Comms
WLAN	No	No
Bluetooth	2.0, A2DP	2.0, A2DP
Positioning	A-GPS only; AT&T Navigator	No
Infrared port	No	No
Radio	No	No
USB	2.0	Proprietary

Features
Sensors
	MP3/WAV/AAC+ player MP4/H.263 player Organizer Push to Talk Voice memo Predictive text input	MP3 player Video player Voice memo Organizer World clock

Battery
Type	Removable Li-Ion 1000 mAh battery	Removable Li-Ion 880 mAh battery
Stand-by	Up to 250 h	Up to 250 h
Talk time	Up to 5 h	Up to 4 h

Misc
Colors	Red on Black, Yellow on Black	Red, Green, Blue, Cyan
SAR	0.24 W/kg (head)     0.40 W/kg (body)	0.83 W/kg (head)     0.38 W/kg (body)
Price	About 130 EUR	About 60 EUR