What are the main specifications of this device?

This device features detailed specifications including screen size, display type and resolution, processor type, RAM capacity, internal storage, camera quality, battery capacity, operating system, design dimensions and weight, and comprehensive connectivity options. All specifications are provided in the detailed sections above.

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The detailed release date and announcement information for this device is available in the Launch section of the specifications. This includes the announcement date and availability timeline.

What connectivity options are available?

This device supports various connectivity options including network generations (2G, 3G, 4G LTE, 5G), WiFi standards, Bluetooth versions, GPS, NFC, and USB connectivity. All connectivity specifications are detailed in the relevant sections.

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Complete technical specifications are organized in detailed sections covering display, hardware, memory, cameras, multimedia, connectivity, features, battery, and more. Scroll through the page to find all available information, or use our Phone Finder tool to explore similar devices.

BenQ-Siemens EF81 - Full Specifications

NETWORK
NETWORK	Technology	GSM / UMTS
2G bands	GSM 900 / 1800 / 1900
3G bands	UMTS 2100
Speed	Yes, 384 kbps
LAUNCH
LAUNCH	Announced	2006, January
LAUNCH	Status	Discontinued
BODY
BODY	Dimensions	94 x 51 x 15.9 mm (3.70 x 2.01 x 0.63 in)
	Weight	110 g (3.88 oz)
	SIM	Mini-SIM
DISPLAY
DISPLAY	Type	TFT, 256K colors
	Size	2.2 inches, 34 x 45 mm, 15.0 cm2 (~31.3% screen-to-body ratio)
	Resolution	240 x 320 pixels, 4:3 ratio (~182 ppi density) Second external 256K colors display, TFT (120 x 160 pixels) Aluminum rear cover
MEMORY
MEMORY	Card slot	microSD (dedicated slot)
	Phonebook	500 x 20 fields, Photo call
	Call records	100 dialed, 100 received, 100 missed calls
	Internal	64MB
MAIN CAMERA
MAIN CAMERA	Single	2 MP
	Features	rotating lens
	Video	Yes
MULTIMEDIA
MULTIMEDIA	Loudspeaker	No
	Alert types	Vibration; Downloadable polyphonic, AAC ringtones
	3.5mm jack	No
CONNECTIVITY
CONNECTIVITY	WLAN	No
	Bluetooth	Yes
	Positioning	No
	Radio	No
	USB	Proprietary
FEATURES
FEATURES	Sensors
	Messaging	SMS, MMS, Email
	Browser	WAP 2.0/xHTML, HTML
	Games	5 - StarWars, SeaBattle, SuperBomber + downloadable
	Java	Yes, MIDP 2.0 Video telephony MP3/AAC player Video player Photo editor Predictive text input Voice dial Stopwatch Organizer
BATTERY
BATTERY	Type	Removable Li-Ion 950 mAh battery
	Stand-by	Up to 300 h
	Talk time	Up to 4 h 30 min
GENERAL INFO
GENERAL INFO	Colors	Titanium Silver

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