Nokia E66 vs Nokia N78

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E66 compared with N78

	NokiaE66	NokiaN78
Overview
Released
Released	2008	2008
Display
Screen size
Screen size	2.4″	2.4″
Resolution
Resolution	320 × 240	320 × 240
Sharpness
Sharpness	167 pixels per inch	167 pixels per inch
Panel
Panel	LCD	LCD
Display type
Display type	2.4-inch 320 × 240 LCD with up to 16 million colours in the maker datasheet; TFT identified in GSMArena's production test. The physical screen is portrait-oriented; resolution is stored long side first for comparison.	2.4-inch QVGA display with up to 16 million colours. GSMArena’s exact-model specifications classify it as TFT LCD; no maker refresh-rate figure published.
Display features
Display features	Ambient light sensor and accelerometer-driven portrait/landscape rotation; non-touchscreen	–
Performance
Chip
Chip	ARM11 369 MHz (GSMArena)	–
Memory
Memory	128 MB	–
Storage
Storage	110 MB (better)	70 MB
CPU
CPU	369 MHz ARM11 processor identified by GSMArena's exact-model production review	–
Memory
Memory	128 MB installed SDRAM from GSMArena, distinct from free application memory. Maker publishes up to 110 MB internal user memory; the configuration records that user-accessible capacity.	Maker launch sheet publishes up to 70 MB internal storage, not installed physical RAM. GSMArena reports 76 MB internal storage and 96 MB RAM on its tested unit; structured storage retains the maker figure and RAM is omitted pending maker evidence.
Storage type
Storage type	microSD expansion up to 8 GB in the maker launch sheet; optional card capacity is not built-in storage	Hot-swappable microSD slot. Launch sheet includes a 2 GB card; launch release mentions cards available up to 8 GB. Card capacity is separate from internal storage.
Cameras
Main camera
Main camera	3.2 MP	3.2 MP
Ultra wide camera
Ultra wide camera	None	None
Telephoto camera
Telephoto camera	None	None
Optical zoom
Optical zoom	None	None
Main camera
Main camera	3.2 MP autofocus camera with LED flash; maker gives up to 2048 × 1536 still pixels	3.2 MP CMOS autofocus camera with Carl Zeiss Tessar optics, 2048 × 1536 images, single LED flash, 4.6 mm focal length and 10 cm to infinity focus range. No protective lens cover.
Front camera
Front camera	Front camera for video calls confirmed by maker; no sensor megapixel figure inferred	Secondary CIF camera for two-way WCDMA video calling; no megapixel figure inferred from the format name.
Video recording
Video recording	Maker specifies QVGA video; GSMArena's production test records 320 × 240 at 15 fps	VGA at up to 15 fps; VGA playback up to 30 fps is separate from capture.
Camera features
Camera features	Dedicated shutter key; scene, white-balance, exposure, self-timer and sequence controls in GSMArena's production test. Its tested software does not geotag photos.	GPS location tagging, scene modes, white balance, exposure compensation, self-timer, sequence shooting and composition grid. Later software and network-service availability vary.
Battery and charging
Battery
Battery	1,000 mAh	1,200 mAh (better)
Wireless charging
Wireless charging	None	None
Battery life detail
Battery life detail	Removable BL-4U 1000 mAh Li-Ion. Maker maxima are 7.5 hours GSM or 3.5 hours WCDMA talk, and 11 days GSM or 14 days WCDMA standby. These are network operating conditions, not video-playback claims. GSMArena's stationary GPS/display-on test lasts six hours.	Removable BL-6F, 1200 mAh. Launch claims up to 190 minutes WCDMA or 260 minutes GSM talk, 320 hours standby for either network, and 24 hours music playback. Actual endurance depends on network, settings and battery condition.
Wired charging
Wired charging	Separate charging connector; compatible Nokia charger. No charging wattage published in the maker datasheet; micro-USB data support does not establish USB charging.	Dedicated Nokia charging connector; supplied mains charger is separate from the micro-USB data cable.
Design
Type
Type	Standard	Standard
Weight
Weight	121 g	101.8 g (better)
Thickness
Thickness	13 mm (better)	15.1 mm
Height × width
Height × width	107 × 49 mm	113 × 49 mm
Weight detail
Weight detail	Maker launch sheet rounds size to 107 × 49 × 13 mm and gives 121 g. GSMArena measures/lists 107.5 × 49.5 × 13.6 mm; that greater precision is review evidence, not a silently substituted maker claim.	–
Materials
Materials	Stainless-steel rear cover and slider body; numeric keypad slides out below the display. This is a mechanical slider, not a folding or flexible-display phone.	–
Colours
Colours	Grey Steel and White Steel in original maker launch sheet; regional availability varies	All About Symbian lists Pearl White, Cocoa Brown (spelt “coca brown” in the article) and Lagoon Blue rear variants. Black front face; recovered maker photos show different side/rear finishes.
Buttons
Buttons	Numeric keypad, navigation control and one-touch Home, Calendar, Contacts and Email keys; dedicated shutter and side volume controls	Physical numeric keypad and five-way scroll control with touch-sensitive Navi wheel; multimedia, power, camera and volume controls. Navi wheel can be disabled; breathing light indicates standby or missed events.
Sensors
Sensors	Accelerometer and ambient light sensor	–
Speakers
Speakers	Built-in loudspeaker and FM/Visual Radio; GSMArena reports no RDS. Compatible wired headset serves as radio antenna.	Integrated stereo loudspeakers; Bluetooth stereo and standard wired headphones are separate listening options.
Software
Operating system
Operating system	Symbian	Symbian
Software at launch
Software at launch	Symbian OS 9.2, S60 Third Edition Feature Pack 1, identified by GSMArena's production review	–
Software features
Software features	Business/personal home-screen profiles; Mail for Exchange, Nokia Intellisync and POP/IMAP email. PDF reader, ZIP manager and office-document viewing; editing required a Quickoffice upgrade in GSMArena's test, whereas TechRadar describes document creation. Exact tested software/upgrade status differs between reports. Historical online services may no longer operate.	S60 3rd Edition Feature Pack 2, based on Symbian OS 9.3 as identified by the full reviews. Music player, FM receiver/transmitter, Internet Radio, media sharing, web browser and document viewers. Launch sheet lists N-Gage as a later download; initial-firmware reviews found it unavailable. FM transmitter varies by country; RM-235 guide gives 88.1–107.9 MHz and up to 3 m operating distance.
Release detail
Release detail	Announced 16 June 2008 alongside E71, with July shipments forecast. Nokia's 2008 annual report confirms actual E66 shipments during that year; earliest worldwide retail month remains unresolved. No speculative E65 predecessor relation added while that model is absent.	Maker launch sheet and reproduced release plan Q2 2008 shipping, not confirmed first retail. All About Symbian reports Finnish retailer shipping by 24 May 2008 and tests a production handset in June. Year precision retained pending exact maker first-sale evidence. Maker says it continues a range such as N73, without explicit direct replacement wording.
In the box
In the box	GSMArena's tested package contains a compact charger, 2.5 mm headset, leather case and 2 GB microSD card with maps; regional contents may differ	–
Connectivity
Mobile network
Mobile network	Quad-band GSM/EGSM 850/900/1800/1900; separate WCDMA 900/2100, 850/2100 and 850/1900 variants, not one five-band handset. HSDPA up to 3.6 Mbps; WCDMA up to 384 kbps down/up. No LTE.	Launch sheet covers WCDMA 900/2100 and GSM/GPRS/EGPRS 850/900/1800/1900 with HSDPA. All About Symbian distinguishes N78-1 European/Asian bands from N78-3 850/1900 WCDMA; regional bands are not combined.
Wi-Fi
Wi-Fi	IEEE 802.11b/g	IEEE 802.11b/g with UPnP home-network sharing and synchronisation.
Bluetooth
Bluetooth	Bluetooth 2.0 with EDR and A2DP stereo audio	Bluetooth 2.0 with enhanced data rates. RM-235 guide lists A2DP, AVRCP, imaging, printing, dial-up networking, file transfer, hands-free, headset, HID, object push, SIM access, synchronisation, serial-port and phonebook-access profiles.
USB
USB	Micro-USB and infrared; separate 2.5 mm AV/headset connector. GSMArena describes USB 2.0 compatibility; no Hi-Speed rate inferred from that label.	Hi-Speed USB 2.0 through micro-USB for data; standard 3.5 mm audio connector. No TV output, distinguished in All About Symbian’s exact-model review.
Positioning
Positioning	Built-in GPS with assisted GPS and Nokia Maps; original reviews describe temporary/subscription-based voice guidance. Historical online map services are not promised available today.	Integrated GPS and assisted GPS with original Nokia Maps. Historical navigation subscriptions and retired online services are not promised as current features.