Nokia E66 vs Nokia E71
| Type | Slide | Bar (classic) | Slide | Bar (classic) |
| Dimensions | 107.00 x 49.00 x 13.00 mm | 114.00 x 57.00 x 10.00 mm | 101.50 x 51.00 x 16.80 mm | 111.00 x 49.00 x 15.50 mm |
| Weight | 121.00 g | 126.00 g | 112.00 g | 84.00 g |
| Display size | 2.40" | 2.36" | 2.40" | 2.20" |
| Display | Color / TFT 16M colors 240 x 320 px (2.40") 167 ppi | Color / TFT 16M colors 320 x 240 px (2.36") 169 ppi | Color / TFT 256k colors 240 x 320 px (2.40") | Color / TFT 256k colors 240 x 320 px (2.20") 182 ppi |
| Display protection |   | | | |
| Additional display | | | | |
| Protection of the secondary display | | | | |
| Talk time (max.) | 2G: 450 min. (7.5 h) 3G: 210 min. (3.5 h) | 2G: 630 min. (10.5 h) 3G: 270 min. (4.5 h) | 2G: 300 min. (5.0 h) | 2G: 750 min. (12.5 h) 3G: 296 min. (4.9 h) |
| Stand-by (max.) | 2G: 264 h. (11.0 days) 3G: 336 h. (14.0 days) | 2G: 408 h. (17.0 days) 3G: 480 h. (20.0 days) | 2G: 444 h. (18.5 days) | 2G: 420 h. (17.5 days) 3G: 475 h. (19.8 days) |
| Standard battery | Li-Ion 1000 mAhBuy powerbank
| Li-Po 1500 mAhBuy powerbank
| Li-Ion 800 mAhBuy powerbank
| Li-Po 1000 mAhBuy powerbank
|
| Quick battery charging | | | | |
| Wireless battery charging | | | | |
| Phonebook memory | 1000 places |  | 1000 places | 1000 places |
| Internal memory | 110 MB | 110 MB | 15 MB | 280 MB |
| Memory cards |  microSD, microSDHC up to 8 GBBuy memory card | microSD up to 8 GBBuy memory card | microSD up to 4 GBBuy memory card | microSD, microSDHC up to 16 GBBuy memory card |
| Operating system | Symbian 9.2 | Symbian 9.2 | - | - |
| Interface | Series 60 3rd Edition | Series 60 3rd Edition | - | - |
| Processor | ARM11 | ARM11 | - | - |
| Processor clock | 369 MHz | 369 MHz | - | - |
| GPU | - | - | - | - |
| Touchscreen | | | | |
| SAR (10g) | 1,37 W/kg | 1,33 W/kg | | |
| DualSIM | | | | |
| Announced | 3Q 2008 | 3Q 2008 | 3Q 2008 | 3Q 2010 |
| Other names | - | - | LG Etna; Neon; TE365F, TE365 | Cedar GreenHeart; J108; J108i; Hong |
| GSM frequencies | 850 900 1800 1900 | 850 900 1800 1900 | 900 1800 1900 | 850 900 1800 1900 |
| UMTS | 1900 2100 | 850 900 1900 2100 | | 2100 |
| LTE standard | | | | |
| CDMA | | | | |
| Standard TD-SCDMA | | | | |
| UMA | | | | |
CAMERAS - BACK
| First camera | | | | |
| Photo matrix | 3.2 Mpx | 3.2 Mpx | 2 Mpx | 2 Mpx |
| Resolution | 2048x1536 px | 2048x1536 px | 1600x1200 px | 1600x1200 px |
| Optical zoom | | | | |
| Digital zoom | 4x | 4x | 4x | 2,5x |
| Flash | LED | LED | | |
| Dual-colour LED flash | | | | |
| Video resolution | 320x240 px | 320x240 px | 320x240 px | 320x240 px |
| Video formats | H.263, H.264, MPEG4 - 15 fps | MPEG4, H.263 - 15 fps | H.263, MPEG4 | H.263, MPEG4 - 15 fps |
| Additional | - | - | - | - |
CAMERAS - FRONT
| First camera | | | | |
| Photo matrix | 0.3 Mpx | 0.3 Mpx | nd | nd |
| Resolution | 640x480 px | 640x480 px | nd | nd |
| Optical zoom | | | nd | nd |
| Digital zoom | | 2x | nd | nd |
| Flash | | | nd | nd |
| Dual-colour LED flash | | | nd | nd |
| Video formats | H.263, H.264, MPEG4 - 15 fps | MPEG4, H.263 - 15 fps | nd | nd |
| Additional | - | - | nd | nd |
SENSORS
| Accelerometer | | | | |
| Proximity | | | | |
| Light | | | | |
| Magnetometer | | | | |
| Gyroscope | | | | |
| Barometer | | | | |
| Altimeter | | | | |
| Gravity | | | | |
| Hall-effect | | | | |
| Iris scanner | | | | |
| Fingerprint scanner | | | | |
| Thermometer | | | | |
| Hygrometer | | | | |
Data transfer
| xHTML | | | | |
| WAP | v2.0 | v2.0 | v2.0 | v2.0 |
| HSCSD | | | | |
| HSDPA | | 3.60 Mbit/s | | 7.20 Mbit/s |
| HSUPA | | | | 2.00 Mbit/s |
| HSPA | | | | |
| HSPA+ | | | | |
| LTE DL | | | | |
| LTE UP | | | | |
| WIMAX+ | | | | |
| GPRS | class 32 | class 32 | class 12 | class 10 |
| EDGE | class 32 | class 32 | class 12 | class 10 |
| Bluetooth | v2.0 EDR | v2.0 EDR | v2.0 | v2.1 EDR |
| A2DP Profile | | | | |
| HDMI | | | | |
| WiFi | v802.11 b/g | v802.11 b/g | | |
| WiFi frequencies | 2,4 GHz | 2,4 GHz | | |
| WiFi Direct | | | | |
| WiFi Display | | | | |
| DLNA | | | | |
| Miracast | | | | |
| WiFi hotspot | | | | |
| IrDA | | | | |
| USB | v2.0 | v2.0 | v2.0 | v2.0 |
| GPS | | | | |
| A-GPS | | | | |
| Beidou | | | | |
| NFC | | | | |
COMMUNICATION AND MESSAGING
| Call waiting | | | | |
| Conferency | | | | |
| Call forwarding | | | | |
| Push To Talk | | | | |
| Instant Messenger | | | | |
| SMS | | | 500 places | |
| EMS | | v4.3 | | |
| MMS | v1.2 | v1.2 | | |
| Dictionary | T9 | OTHER | T9 | eZi |
| Swype | | | | |
| e-mail client | POP3, IMAP4, SMTP | POP3, IMAP4, SMTP | POP3, IMAP4, SMTP | POP3, IMAP4, SMTP |
| Hardware QWERTY keyboard | | | | |
| RSS Reader | | | | |
Multimedia
| Radio | | z RDS | | z RDS |
| MP3 | | | | |
| Stereo speakers | | | | |
| Audio Jack | 3.5 mm | 3.5 mm | | 3.5 mm |
| HD Voice | | | | |
| Sound formats | AAC, AAC+, AMR, eAAC+ | AAC, AAC+, AMR, M4A, MP4, WAV, eAAC+ | AAC, AAC+, eAAC+ | AAC, AAC+, AMR, WAV, WMA, eAAC+ |
| Polyphony | 64 voices | 64 voices | 64 voices | |
| Video ringtone | | | | |
| Ring composer | | | | |
| Games | | | | |
| Java | MIDP 2.1 | MIDP 2.0 | MIDP 2.0 | MIDP 2.1 |
| Videophone | | | | |
| DVB-H television | | | | |
| TV-Out | | | | |
PIM AND ADDITIONAL FUNCTIONS
| Watch | | | | |
| Stopwatch | | | | |
| Alarm | | | | |
| Calculator | | | | |
| Currency converter | | | | |
| Organizer | | | | |
| Calendar | | | | |
| Flight mode | | | | |
| SyncML | v1.2 | v1.2 | | v1.2 |
| Data and fax | | | | |
| Screensaver | | | | |
| Themes | | | | |
| Interchangeable covers | | | | |
| Voice dial | | | | |
| Speakerphone | | | | |
| Recorder | | | | |
| Vibrations | | | | |