Sony Ericsson K800i vs Sony Ericsson Vivaz
| Type | Bar (classic) | Touch |
| Dimensions | 106.00 x 47.00 x 22.00 mm | 107.00 x 52.17 x 12.50 mm |
| Weight | 115.00 g | 97.00 g |
| Display size | 2.00" | 3.20" |
| Display | Color / TFT 256k colors 240 x 320 px (2.00") 200 ppi | Color / TFT 16M colors 360 x 640 px (3.20") 229 ppi |
| Display protection |   | |
| Additional display | | |
| Protection of the secondary display | | |
| Talk time (max.) | 2G: 420 min. (7.0 h) 3G: 150 min. (2.5 h) | 2G: 780 min. (13.0 h) 3G: 320 min. (5.3 h) |
| Video talk time (max.) |  | 150 min. (2.5 h) |
| Stand-by (max.) | 2G: 350 h. (14.6 days) 3G: 350 h. (14.6 days) | 2G: 430 h. (17.9 days) 3G: 440 h. (18.3 days) |
| Standard battery | Li-Po 900 mAhBuy powerbank
| Li-Po 1200 mAhBuy powerbank
|
| Quick battery charging | | |
| Wireless battery charging | | |
| Internal memory | 64 MB | 75 MB |
| Memory cards |  Memory Stick Micro (M2) up to 2 GBBuy memory card | microSD, microSDHC up to 16 GBBuy memory card |
| Operating system | - | Symbian |
| Interface | - | Series 60 5th Edition |
| Processor | ARM9 | ARM Cortex A8 |
| Processor clock | 212 MHz | 720 MHz |
| GPU | - | - |
| Touchscreen | | |
| SAR (10g) | 0,58 W/kg | |
| DualSIM | | |
| Announced | 2Q 2006 | 1Q 2010 |
| Other names | K800; Wilma | Kurara; U5; U5i; U5a |
| GSM frequencies | 900 1800 1900 | 850 900 1800 1900 |
| UMTS | 2100 | 2100 |
| LTE standard | | |
| CDMA | | |
| Standard TD-SCDMA | | |
| UMA | | |
CAMERAS - BACK
| First camera | | |
| Photo matrix | 3.2 Mpx | 8.1 Mpx |
| Resolution | 2048x1536 px | 3264x2448 px |
| Optical zoom | | |
| Digital zoom | 16x | 4x |
| Flash | LED, Xenon | LED |
| Dual-colour LED flash | | |
| Video resolution | 176x144 px | 1280x720 px |
| Video formats | 3GP (H263, H264), MPEG4, RealVideo 8 | H.263, MPEG4 |
| Additional | EIS | AF |
CAMERAS - FRONT
| First camera | | |
| Photo matrix | 0.3 Mpx | nd |
| Resolution | 640x480 px | nd |
| Optical zoom | | nd |
| Digital zoom | 4x | nd |
| Flash | | nd |
| Dual-colour LED flash | | nd |
| Additional | - | 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 |
| HSCSD | | |
| HSDPA | | 7.20 Mbit/s |
| HSUPA | | 2.00 Mbit/s |
| HSPA | | |
| HSPA+ | | |
| LTE DL | | |
| LTE UP | | |
| WIMAX+ | | |
| GPRS | class 10 | class 10 |
| EDGE | | class 10 |
| Bluetooth | v2.0 | v2.0 EDR |
| A2DP Profile | | |
| HDMI | | |
| WiFi | | v802.11 b/g |
| WiFi frequencies | | 2,4 GHz |
| WiFi Direct | | |
| WiFi Display | | |
| DLNA | | |
| Miracast | | |
| WiFi hotspot | | |
| IrDA | | |
| USB | v2.0 | v2.0 |
| GPS | | |
| A-GPS | | |
| Beidou | | |
| NFC | | |
COMMUNICATION AND MESSAGING
| Call waiting | | |
| Conferency | | |
| Call forwarding | | |
| Push To Talk | | |
| Instant Messenger | | |
| SMS | 1000 places | |
| EMS | | |
| MMS | | v1.2 |
| Dictionary | T9 | T9 |
| Swype | | |
| e-mail client | 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 |
| HD Voice | | |
| Sound formats | 3GP, AAC, AAC+, AMR, M4A, MP4, RA8, WAV, eAAC+ | AAC, AAC+, AMR, RA, SMF, WAV, WMA, eAAC+ |
| Polyphony | 72 voices | |
| Video ringtone | | |
| Ring composer | | |
| Games | | |
| Java | MIDP 2.0 3D | MIDP 2.1 3D |
| 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 |
| Data and fax | | |
| Screensaver | | |
| Themes | | |
| Interchangeable covers | | |
| Voice dial | | |
| Speakerphone | | |
| Recorder | | |
| Vibrations | | |