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Nokia E51 vs Nokia E71

Every spec side by side, from each maker's published figures.

Better figure, where one is clearly better

NokiaE51NokiaE71
Overview
Released20072008
Display
Screen size2″2.36″
Resolution320 × 240320 × 240
Sharpness200 pixels per inch169 pixels per inch
PanelLCDLCD
Display typeActive-matrix TFT with up to 16 million colours; ambient-light sensor2.36-inch QVGA LCD, 320 × 240 pixels and up to 16 million colours; non-touchscreen. Panel technology confirmed by the full production reviews, not explicitly stated in the maker launch sheet.
Performance
Chip–ARM11 369 MHz (GSMArena)
Memory–128 MB
Storage130 MB110 MB
CPU–369 MHz ARM11 processor from GSMArena's full production review.
MemoryUp to 130 MB user data storage in the maker specification sheet; physical RAM not verified in the exact maker sheet or guide128 MB installed SDRAM from GSMArena; distinct from free application memory. Maker specifies up to 110 MB internal user storage; GSMArena's 120 MB wording differs, so the maker figure is retained.
Storage typeHot-swappable microSD; maker brochure supports up to 4 GBHot-swappable microSD up to 8 GB in the maker launch specification; optional card capacity is not built-in storage.
Cameras
Main camera2 MP3.2 MP
Ultra wide cameraNoneNone
Telephoto cameraNoneNone
Optical zoomNoneNone
Main cameraFixed-focus 2 MP without flash in GSMArena's camera-equipped production test3.2 MP autofocus camera with LED flash; maker gives up to 2048 × 1536 still pixels.
Front camera–Front camera for video calls confirmed by maker; no sensor megapixel figure inferred.
Video recordingQVGA 320 × 240 at 15 fps, MPEG-4 in GSMArena's exact testMaker specifies QVGA video. GSMArena tested 320 × 240 recording at 15 fps; frame rate is review evidence, not an additional maker claim.
Camera features–Press the T key to focus before taking a photograph with the scroll key; image sequence, scene, white-balance and exposure controls in the exact owner guide.
Battery and charging
Battery1,050 mAh1,500 mAh
Wireless chargingNoneNone
Battery life detailRemovable BP-6MT. Maker brochure gives 1050 mAh, up to 4.4 hours GSM talk and 13 days GSM standby. GSMArena itself inconsistently gives 1050 mAh in its package description and 1070 mAh in its battery section; headline retains the maker figure.User-replaceable BP-4L 1500 mAh Li-Po. Maker maxima are 10.5 hours GSM or 4.5 hours WCDMA talk, and 17 days GSM or 20 days WCDMA standby. These are different operating conditions, not video-playback claims. Trusted Reviews' 1530 mAh wording differs from the maker's 1500 mAh.
Wired chargingAC-5 charger through a separate small charger socket; miniUSB does not charge the phone in GSMArena's testSeparate charger connector; exact guide describes a compatible wall charger and optional CA-44 adaptor for older compatible Nokia chargers. No USB charging in Trusted Reviews' production test; no charging wattage published in these maker sources.
Design
TypeStandardStandard
Weight100 g126 g
Thickness12 mm10 mm
Height × width115 × 46 mm114 × 57 mm
Weight detailMaker brochure gives 100 g and 115 × 47 × 12 mm. Headline width follows TechRadar's exact-model 46 mm and GSMArena's 114.8 × 46 × 12 mm production description; the brochure's 47 mm conflicts with both.Maker gives 126 g and 114 × 57 × 10 mm; GSMArena's 127 g wording differs.
MaterialsStainless-steel trim and rear battery cover, with plastic upper rear sectionStainless-steel body with patterned metal rear cover.
ColoursBlack Steel, Pink Steel and White SteelGrey Steel and White Steel in original maker launch specification; regional availability varies.
ButtonsNumeric keypad and five-way Navi key; one-touch email, contacts, calendar and home keys; side volume, mute and voice controls; email notification lightPhysical QWERTY keyboard, navigation/scroll key, call/end controls and one-touch Home, Calendar, Contacts and Email keys.
SpeakersFM Visual Radio and MP3/AAC music playback; no RDS in GSMArena's production testBuilt-in speaker and FM/Visual Radio; production review reports no RDS. Compatible wired headset serves as radio antenna.
Software
Operating systemSymbianSymbian
Software at launchSymbian OS 9.2 with S60 Third Edition Feature Pack 1Symbian OS 9.2, S60 Third Edition Feature Pack 1, identified by GSMArena's production review.
Software featuresQuickoffice document viewing, PDF reader, ZIP manager, Team Suite and Active notes. Maker brochure mentions attachment editors, but supplied Quickoffice does not edit in GSMArena's production test; editing requires the separate editor version. Historical enterprise email and internet-call services may no longer operate.Two personal/business home-screen profiles; Mail for Exchange, Nokia Intellisync, POP/IMAP, mobile VPN and phone/card encryption. Exact guide describes Quickword, Quicksheet, Quickpoint, PDF reader and ZIP manager. Both production reviews tested included document editing; Office 2007 support required an upgrade. Historical apps and online services may no longer be available.
Release detailAnnounced 18 September 2007 with planned fourth-quarter availability; Nokia's actual fourth-quarter results confirm first shipments during that quarter. Earliest retail month unresolved, so year precision retained. E50 comparison remains available without an inferred manufacturer successor link.Announced 16 June 2008 with July shipments planned; launch sheet instead states planned Q3 introduction. Maker's July interim report says E71 had already begun shipping during the second quarter. Factory shipment is not proof of first retail sale; only confirmed 2008 year precision retained because worldwide first-sale month remains unresolved. No direct predecessor inferred from shared family or review wording.
Connectivity
Mobile networkEGSM 850/900/1800/1900 and WCDMA 850/2100; HSDPA up to 3.6 Mbit/sQuad-band GSM/EGSM 850/900/1800/1900. Maker lists separate WCDMA 850/2100, 900/2100 and 850/1900 variants, not one five-band model. HSDPA up to 3.6 Mbps; WCDMA upload/download up to 384 kbps. No LTE.
Wi-FiIEEE 802.11g WLAN with internet callingIEEE 802.11g from maker launch sheet.
BluetoothBluetooth 2.0; wireless stereo headset support in maker brochure and A2DP verified in GSMArena's production testBluetooth 2.0 with EDR and A2DP stereo audio.
USBminiUSB data connector and IrDA 115 kbit/s; 2.5 mm headset socket in TechRadar's testMaker specifies Full-Speed USB and infrared; production review confirms micro-USB connector. USB 2.0 compatibility does not establish Hi-Speed transfer. Separate 2.5 mm AV/headset connector.
PositioningNo internal GPS in TechRadar's test; Nokia Maps can use an optional external receiverInternal GPS with assisted GPS and Nokia Maps. Original production reviews describe licensed voice guidance rather than permanent free navigation. Historical services are not promised available today.

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