Primus PTL 660 vs HTC Touch Diamond
| Type | Bar (classic) | Touch |
| Dimensions | 106.00 x 49.00 x 24.00 mm | 102.00 x 51.00 x 11.33 mm |
| Weight | 98.00 g | 110.00 g |
| Display size | - | 2.80" |
| Display | Mono / STN 52 x 87 px | Color / TFT 64k colors 480 x 640 px (2.80") 286 ppi |
| Display protection |   | |
| Additional display | | |
| Protection of the secondary display | | |
| Talk time (max.) | 2G: 180 min. (3.0 h) | 2G: 330 min. (5.5 h) 3G: 270 min. (4.5 h) |
| Video talk time (max.) | nd | 145 min. (2.4 h) |
| Stand-by (max.) | 2G: 150 h. (6.3 days) | 2G: 285 h. (11.9 days) 3G: 396 h. (16.5 days) |
| Standard battery | Ni-MH 550 mAhBuy powerbank
| Li-Ion 900 mAhBuy powerbank
|
| Quick battery charging | | |
| Wireless battery charging | | |
| Phonebook memory | 100 places |  |
| Internal memory | | 4 GB |
| RAM memory | | 192 MB |
| Memory cards | | |
| Operating system | - | MS Windows Mobile 6.1 Pro |
| Processor | - | Qualcomm MSM7201A |
| Processor clock | - | 528 MHz |
| Touchscreen | |  |
| DualSIM | | |
| Other names | - | HT-02A; P3700 |
| GSM frequencies | 900 1800 | 900 1800 1900 |
| UMTS | | 1900 2100 |
| LTE standard | | |
| CDMA | | |
| Standard TD-SCDMA | | |
| UMA | | |
CAMERAS - BACK
| First camera | | |
| Photo matrix | nd | 3.2 Mpx |
| Resolution | nd | 2048x1536 px |
| Optical zoom | nd | |
| Flash | nd | |
| Dual-colour LED flash | nd | |
| Additional | nd | - |
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 |
| HSCSD | | |
| HSDPA | | 7.20 Mbit/s |
| HSUPA | | |
| HSPA | | |
| HSPA+ | | |
| LTE DL | | |
| LTE UP | | |
| WIMAX+ | | |
| GPRS | | |
| EDGE | | |
| Bluetooth | | 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 |
| GPS | | |
| A-GPS | | |
| Beidou | | |
| NFC | | |
COMMUNICATION AND MESSAGING
| Call waiting | | |
| Conferency | | |
| Call forwarding | | |
| Push To Talk | | |
| Instant Messenger | | |
| SMS | | |
| EMS | | |
| MMS | | |
| Dictionary | T9 | T9 |
| 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, AAC+, WAV, WMA, eAAC+ |
| Polyphony | | 40 voices |
| Ring composer | | |
| Games | | |
| Java | | MIDP 2.0 |
| Videophone | | |
| DVB-H television | | |
PIM AND ADDITIONAL FUNCTIONS
| Watch | | |
| Stopwatch | | |
| Alarm | | |
| Calculator | | |
| Currency converter | | |
| Organizer | | |
| Calendar | | |
| Flight mode | | |
| SyncML | | |
| Data and fax | | |
| Screensaver | | |
| Interchangeable covers | | |
| Voice dial | | |
| Speakerphone | | |
| Recorder | | |
| Vibrations | | |