Motorola KRZR k1 vs Siemens SL55
| Vormgeving | Klepje | Slide |
| Afmetingen | 103.00 x 42.00 x 16.00 mm | 81.60 x 44.50 x 21.90 mm |
| Gewicht | 103.00 g | 79.00 g |
| Schermgrootte | 1.90" | - |
| Scherm | Kleurrijk / TFT 256k kleuren 176 x 220 px (1.90") | Kleurrijk / CSTN 4k kleuren 101 x 80 px |
| Bescherming scherm |   | |
| Extra scherm | Kleurrijk / CSTN 64k kleuren 96 x 80 px | |
| Secundaire bescherming scherm | | |
| Max. gesprekstijd | 2G: 400 min. (6.7 h) | 2G: 210 min. (3.5 h) |
| Max. standbytijd | 2G: 300 uur (12.5 dagen) | 2G: 200 uur (8.3 dagen) |
| Standaard batterij | Li-Ion 700 mAhBuy powerbank | Li-Po 500 mAhBuy powerbank |
| Snel opladen van de batterij | | |
| Draadloos opladen van de batterij | | |
| Geheugen van het telefoonboek |  | 500 contacten |
| Intern geheugen | 20 MB | 1.6 MB |
| Geheugen kaarten |  microSD tot 2 GBBuy memory card | |
| Touchscreen | | |
| SAR | | 0,62 W/kg |
| Dual SIM | | |
| Introductiedatum | I. kwartaal 2007 | |
| Andere namen van deze telefoon | - | - |
| GSM standaard | 850 900 1800 1900 | 900 1800 1900 |
| UMTS standaard (3G) | | |
| LTE-standaard | | |
| CDMA standaard | | |
| TD-SCDMA-standaard | | |
| UMA standaard | | |
CAMERA'S - TERUG
| Eerste camera | | |
| Matrix | 2 Mpx | nd |
| Schermresolutie | 1600x1200 px | nd |
| Optische zoom | | nd |
| Digitale vergroting | 8x | nd |
| Flitser | | nd |
| Dual-color LED-flitser | | nd |
| Videoformaten | MPEG4 | nd |
| Extra | - | nd |
CAMERA'S - VOORKANT
SENSORS
| Accelerometer | | |
| Nabijheid | | |
| Licht sensor | | |
| Magnetometer | | |
| Gyroscoop | | |
| Barometer | | |
| Altimeter | | |
| Gravity sensor | | |
| Hall-effect sensor | | |
| Iris scanner | | |
| Vingerafdrukscanner | | |
| Thermometer | | |
| Hygrometer | | |
Gegevens transmissie
| xHTML | | |
| WAP | v2.0 | v1.2.1 |
| HSCSD | | |
| HSUPA | | |
| HSPA | | |
| HSPA+ | | |
| LTE DL | | |
| LTE UP | | |
| WIMAX+ | | |
| GPRS | classe 10 | classe 8 |
| EDGE | classe 12 | |
| Bluetooth | v2.0 | |
| HDMI | | |
| WiFi | | |
| WiFi frequenties | | |
| WiFi Direct | | |
| WiFi Display | | |
| DLNA | | |
| Miracast | | |
| WiFi-hotspot | | |
| IrDA | | |
| USB | v2.0 | |
| Beidou | | |
| NFC | | |
COMMUNICATIE EN BERICHTEN
| Call waiting | | |
| Video conferentie verbinding | | |
| Redirect | | |
| Push To Talk | | |
| Instant Messenger | | |
| SMS | | |
| EMS | | |
| MMS | | |
| Predictive text | iTAP | T9 |
| Swype | | |
| E-mailclient | | |
| QWERTY toetsenbord | | |
| RSS reader | | |
Multimedia
| Radio | | |
| MP3 bediening | | |
| Stereo speakers | | |
| Audio Jack | | |
| HD Voice | | |
| Geluidsformaten | AAC, AAC+, eAAC+ | |
| Ringtone polyfoon | | 16 voice |
| Video beltonen | | |
| Beltoon componist | | |
| Spelletjes | | |
| Java | MIDP 2.0 | MIDP 1.0 |
| Videoverbinding | | |
| DVB-H televisie | | |
| TV aansluiting | | |
PIM EN EXTRA FUNCTIES
| Klok | | |
| Stopwatch | | |
| Alarm | | |
| Calculator | | |
| Valuta Converter | | |
| Organizer | | |
| Agenda | | |
| Vliegtuigstand | | |
| SyncML | | |
| Data en fax | | |
| Schermbeveiliging | | |
| Verwisselbare cover | | |
| Voice picking | | |
| Speaker | | |
| Memorecorder | | |
| Trilalarm | | |