Alcatel Crystal vs Acer M900
| Type | Clamshell | Slide |
| Dimensions | 94.00 x 46.00 x 19.00 mm | 119.00 x 62.00 x 17.10 mm |
| Weight | 74.50 g | 188.00 g |
| Display size | 1.80" | 3.80" |
| Display | Color / TFT 64k colors 128 x 160 px (1.80") | Color / TFT 64k colors 480 x 800 px (3.80") 246 ppi |
| Display protection |   | |
| Additional display | Mono / OLED 64 x 96 px | |
| Protection of the secondary display | | |
| Talk time (max.) | 2G: 300 min. (5.0 h) |  |
| Stand-by (max.) | 2G: 350 h. (14.6 days) | |
| Standard battery | Li-Ion 750 mAhBuy powerbank
| Li-Ion Buy powerbank
|
| Quick battery charging | | |
| Wireless battery charging | | |
| Phonebook memory | 800 places | |
| Internal memory | 10 MB | |
| Memory cards |  microSD | microSD, microSDHC |
| Operating system | - | MS Windows Mobile 6.1 Pro |
| Processor | - | Samsung S3C6410 |
| Processor clock | - | 533 MHz |
| GPU | - | - |
| Touchscreen | | |
| DualSIM | | |
| Other names | - | - |
| GSM frequencies | | |
| UMTS | | 2100 |
| LTE standard | | |
| CDMA | | |
| Standard TD-SCDMA | | |
| UMA | | |
CAMERAS - BACK
| First camera | | |
| Photo matrix | 1.3 Mpx | 5 Mpx |
| Resolution | 1280x1024 px | 2592x1944 px |
| Optical zoom | | |
| Flash | | LED |
| Dual-colour LED flash | | |
| Additional | - | - |
CAMERAS - FRONT
| First camera | | |
| Photo matrix | nd | 0.3 Mpx |
| Resolution | nd | 640x480 px |
| Optical zoom | 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 | | |
| 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 | v1.1 | v2.0 |
| GPS | | |
| Beidou | | |
| NFC | | |
COMMUNICATION AND MESSAGING
| Call waiting | | |
| Conferency | | |
| Call forwarding | | |
| Push To Talk | | |
| Instant Messenger | | |
| SMS | | |
| EMS | | |
| MMS | | |
| Dictionary | | |
| Swype | | |
| e-mail client | | |
| Hardware QWERTY keyboard | | |
| RSS Reader | | |
Multimedia
| Radio | z RDS | |
| MP3 | | |
| Stereo speakers | | |
| Audio Jack | | 3.5 mm |
| HD Voice | | |
| Sound formats | | AAC, WAV, WMA |
| Polyphony | 64 voices | |
| Video ringtone | | |
| Ring composer | | |
| Games | | |
| Java | | MIDP 2.0 |
| Videophone | | |
| DVB-H television | | |
| TV-Out | | |
PIM AND ADDITIONAL FUNCTIONS
| Watch | | |
| Alarm | | |
| Calculator | | |
| Organizer | | |
| Calendar | | |
| Flight mode | | |
| SyncML | | |
| Data and fax | | |
| Screensaver | | |
| Themes | | |
| Interchangeable covers | | |
| Voice dial | | |
| Speakerphone | | |
| Recorder | | |
| Vibrations | | |