Asus ZX1 vs Siemens S55
| Vormgeving | Touchscreen | Bar-telefoon | Touchscreen | Touchscreen |
| Afmetingen | 115.60 x 59.40 x 13.20 mm | 101.00 x 42.00 x 18.00 mm | 119.00 x 63.00 x 13.00 mm | 104.00 x 58.00 x 11.50 mm |
| Gewicht | 119.00 g | 85.00 g | 135.00 g | 97.50 g |
| Schermgrootte | 2.80" | - | 4.00" | 3.00" |
| Scherm | Kleurrijk / TFT 64k kleuren 240 x 320 px (2.80") 143 ppi | Kleurrijk / CSTN 256 kleuren 101 x 80 px | Kleurrijk / TFT 64k kleuren 480 x 854 px (4.00") 245 ppi | Kleurrijk / TFT 256k kleuren 240 x 320 px (3.00") 133 ppi |
| Bescherming scherm |   | | | |
| Extra scherm | | | | |
| Secundaire bescherming scherm | | | | |
| Max. gesprekstijd | 2G: 300 min. (5.0 h) 3G: 200 min. (3.3 h) | 2G: 360 min. (6.0 h) | 2G: 415 min. (6.9 h) 3G: 425 min. (7.1 h) | 2G: 1020 min. (17.0 h) 3G: 370 min. (6.2 h) |
| Max. standbytijd | 2G: 150 uur (6.3 dagen) 3G: 150 uur (6.3 dagen) | 2G: 300 uur (12.5 dagen) | 2G: 600 uur (25.0 dagen) 3G: 480 uur (20.0 dagen) | 2G: 850 uur (35.4 dagen) 3G: 540 uur (22.5 dagen) |
| Standaard batterij | Li-Ion 1150 mAhBuy powerbank | Li-Ion 700 mAhBuy powerbank | Li-Po 1500 mAhBuy powerbank | Li-Ion 1200 mAhBuy powerbank |
| Snel opladen van de batterij | | | | |
| Draadloos opladen van de batterij | | | | |
| Intern geheugen | 256 MB | 1 MB | 1 GB | 512 MB |
| End-user-geheugen |  | | | 160 MB |
| RAM-geheugen | 128 MB | | 384 MB | 384 MB |
| Geheugen kaarten |  microSD | | microSD, microSDHC tot 16 GBBuy memory card | microSD, microSDHC tot 32 GBBuy memory card |
| Besturingssysteem | MS Windows CE 6.0 | - | Android 1.6 Donut | Android 2.3 Gingerbread |
| Processor | TI OMAP2431 | - | Qualcomm QSD8250 | Broadcom BCM21553 |
| CPU-klok | 450 MHz | - | 1000 MHz | 832 MHz |
| GPU | - | - | Adreno 200 | - |
| Touchscreen | | | | |
| SAR | | 0,53 W/kg | 1,4 W/kg | 0,655 W/kg |
| Dual SIM | | | | |
| Introductiedatum | | | I. kwartaal 2010 | |
| Andere namen van deze telefoon | - | - | Xperia X10a; Rachael | - |
| GSM standaard | 850 900 1800 1900 | 900 1800 1900 | 850 900 1800 1900 | 850 900 1800 1900 |
| UMTS standaard (3G) | 2100 | | 850 1900 2100 | 900 2100 |
| LTE-standaard | | | | |
| CDMA standaard | | | | |
| TD-SCDMA-standaard | | | | |
| UMA standaard | | | | |
CAMERA'S - TERUG
| Eerste camera | | | | |
| Matrix | 3 Mpx | nd | 8.1 Mpx | 2 Mpx |
| Schermresolutie | 2048x1536 px | nd | 3264x2448 px | 1600x1200 px |
| Optische zoom | | nd | | |
| Digitale vergroting | | nd | 16x | 2x |
| Flitser | | nd | LED | |
| Dual-color LED-flitser | | nd | | |
| Videoresolutie | | nd | 800x480 px | 320x240 px |
| Videoformaten | | nd | MPEG4 - 30 fps | H.263, H.264, MPEG4 - 15 fps |
| Extra | - | nd | AF, EIS | - |
CAMERA'S - VOORKANT
| Eerste camera | | | | |
| Matrix | 0.3 Mpx | nd | nd | nd |
| Schermresolutie | 640x480 px | nd | nd | nd |
| Optische zoom | | nd | nd | nd |
| Flitser | | nd | nd | nd |
| Dual-color LED-flitser | | nd | nd | nd |
| Extra | - | nd | nd | nd |
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 | v2.0 | v2.0 |
| HSCSD | | | | |
| HSDPA | | | 7.20 Mbit/s | 7.20 Mbit/s |
| HSUPA | | | 2.00 Mbit/s | |
| HSPA | | | | |
| HSPA+ | | | | |
| LTE DL | | | | |
| LTE UP | | | | |
| WIMAX+ | | | | |
| GPRS | classe 10 | classe 10 | classe 10 | classe 12 |
| EDGE | classe 10 | | classe 10 | classe 12 |
| Bluetooth | v2.0 EDR | | v2.1 EDR | v3.0 |
| Perfil A2DP | | | | |
| HDMI | | | | |
| WiFi | v802.11 b/g | | v802.11 b/g | v802.11 b/g/n |
| WiFi frequenties | 2,4 GHz | | 2,4 GHz | 2,4 GHz |
| WiFi Direct | | | | |
| WiFi Display | | | | |
| DLNA | | | | |
| Miracast | | | | |
| WiFi-hotspot | | | | |
| IrDA | | | | |
| USB | v2.0 | | v2.0 | v2.0 |
| GPS | | | | |
| A-GPS | | | | |
| GLONASS | | | | |
| Beidou | | | | |
| NFC | | | | |
COMMUNICATIE EN BERICHTEN
| Call waiting | | | | |
| Video conferentie verbinding | | | | |
| Redirect | | | | |
| Push To Talk | | | | |
| Instant Messenger | | | | |
| SMS | | | | |
| EMS | | | | |
| MMS | | | v1.2 | v1.2 |
| Predictive text | | T9 | T9 | T9 |
| Swype | | | | |
| E-mailclient | POP3, IMAP, SMTP | | POP3, IMAP4, SMTP | POP3, IMAP4, SMTP |
| QWERTY toetsenbord | | | | |
| RSS reader | | | | |
Multimedia
| Radio | | | | z RDS |
| MP3 bediening | | | | |
| Stereo speakers | | | | |
| Audio Jack | 3.5 mm | | 3.5 mm | 3.5 mm |
| HD Voice | | | | |
| Geluidsformaten | | | AAC, AAC+, WMA, eAAC+ | AAC, AAC+, AMR, WAV, WMA, eAAC+ |
| Ringtone polyfoon | | 16 voice | 72 voice | |
| Video beltonen | | | | |
| Beltoon componist | | | | |
| Spelletjes | | | | |
| Java | MIDP 2.0 | MIDP 1.0 | Dalvik | Dalvik |
| Videoverbinding | | | | |
| DVB-H televisie | | | | |
| TV aansluiting | | | | |
PIM EN EXTRA FUNCTIES
| Klok | | | | |
| Stopwatch | | | | |
| Alarm | | | | |
| Calculator | | | | |
| Valuta Converter | | | | |
| Organizer | | | | |
| Agenda | | | | |
| Vliegtuigstand | | | | |
| SyncML | | | v1.2 | v1.2 |
| Data en fax | | | | |
| Schermbeveiliging | | | | |
| Thema's | | | | |
| Verwisselbare cover | | | | |
| Voice picking | | | | |
| Speaker | | | | |
| Memorecorder | | | | |
| Trilalarm | | | | |