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| Phone | Samsung SCH-A610 | Samsung Messager R450 | HTC G2 | Casio Exilim C721 | ZTE Flash |
| Current U.S. Carriers | (none) | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released | Released |
| Specifications | |||||
|---|---|---|---|---|---|
| Display Size | ? |
2.1" diag. 4 : 3 |
3.7" diag. 5 : 3 |
2.3" diag. 4 : 3 |
4.5" diag. 16 : 9 |
| Display Resolution & Type |
128 x 160 pixels LCD (TFT/TFD) |
176 x 220 pixels (~134 ppi) LCD (TFT/TFD) |
480 x 800 pixels (~252 ppi) LCD (TFT/TFD) |
240 x 320 pixels (~174 ppi) LCD (TFT/TFD) |
720 x 1280 pixels (~326 ppi) LCD (TFT/TFD) |
| Display Refresh | ? | ? | 60 Hz | ? | 60 Hz |
| Battery | 1,300 mAh | 960 mAh | 1,300 mAh | 920 mAh | 1,780 mAh |
| Processor | ? | ? | 800 MHz Qualcomm S2 MSM7230 | ? | 1.5 GHz Qualcomm Snapdragon S4 Plus MSM8960 |
| RAM | ? | ? | ? | ? | 1 GB |
| Storage | ? raw hardware | ? raw hardware | ? raw hardware | ? raw hardware | 8 GB |
| Main Camera | Yes | 1 megapixel | 5 megapixel | 5 megapixel | 12 megapixel |
| Wide Camera | - | - | - | - | - |
| Tele Camera | - | - | - | - | - |
| Video Capture | - | - | 720p HD | QVGA (320 x 240) | 1080p HD |
| Front Camera | - | - | - | - | 1 megapixel |
| Weight |
4.23 oz (120g) |
4.58 oz (130g) |
6.5 oz (184g) |
4.48 oz (127g) |
5.2 oz (147g) |
| Dimensions |
3.5" x 1.9" x 0.9" (89 x 48 x 22.9 mm) |
4.4" x 2" x 0.7" (112 x 51 x 17.8 mm) |
4.68" x 2.37" x 0.55" (119 x 60 x 14 mm) |
4.06" x 1.97" x 0.78" (103 x 50 x 19.9 mm) |
5.27" x 2.56" x 0.38" (134 x 65 x 9.7 mm) |
| Form Factor | Clamshell | Slab | Slab | Clamshell | Slab |
| Platform / OS | (proprietary) | (proprietary) | Android | (proprietary) | Android |
| Network Bands |
CDMA: 850, 1900 |
CDMA: 850, 1700, 1900 |
WCDMA: 1, 4 GSM: 850, 900, 1800, 1900 |
CDMA: 850, 1900 |
4G LTE: 25 CDMA: 800, 850, 1900 |
| Data Technology | 1xRTT | 1xRTT | HSPA 14.4 | EVDO rA | LTE (Cat 3) |
| Features | |||||
| Flashlight | - | - | - | Yes | - |
| GPS / Location | Yes | Yes | n/a | Yes | n/a |
| Ruggedized | - | - | - | Yes | - |
| Water-Resistant | - | - | - | Yes | - |
| Accessibility | |||||
| Adjustable Text Size | - | - | n/a | Yes | n/a |
| Hearing Aid Compatible | - |
Yes M3 (mostly compatible) |
Yes M3 (mostly compatible) |
Yes M4, T4 (very tele-coil compatible) |
Yes M4, T4 (very tele-coil compatible) |
| Multiple Languages | Yes | Yes | n/a | Yes | n/a |
| TTY/TDD (Digital) | - | Yes | - | Yes | Yes |
| Alerts | |||||
| Extra Display | - | - | - | Yes | - |
| Connectivity | |||||
| Bluetooth | - | Yes | Yes | Yes | Yes |
| Mobile Hotspot | - | - | n/a | - | n/a |
| NFC | - | - | - | - | Yes |
| USB | - | Yes | Yes | Yes |
Yes Micro-USB |
| Wi-Fi | - | - |
Yes 4 (802.11 b,g,n) |
- |
Yes 4 (802.11 b,g,n) |
| Contacts | |||||
| Picture ID | Yes | Yes | n/a | Yes | n/a |
| Ringer ID | Yes | Yes | n/a | Yes | n/a |
| Voice Dialing | Yes | Yes | n/a | Yes | n/a |
| Customization | |||||
| Custom Graphics | Yes | Yes | n/a | Yes | n/a |
| Custom Ringtones | Yes | Yes | n/a | Yes | n/a |
| Real-Music Ringers | - | - | n/a | Yes | n/a |
| Data & Network | |||||
| Data Tethering | Yes | - | n/a | Yes | n/a |
| WAP / Web Browser | Yes | Yes | n/a | Yes | n/a |
| Input | |||||
| Predictive Text Entry | Yes | Yes | n/a | Yes | n/a |
| Side Keys | Yes | Yes | Yes | Yes | Yes |
| Text Keyboard, Hardware | - | Yes | Yes | - | - |
| Touch Screen | - | - |
Yes Capacitive |
- |
Yes Capacitive |
| Memory | |||||
| Memory Card Slot | - | Yes | Yes | Yes | Yes |
| Messaging | |||||
| Email Client | - | - | n/a | - | n/a |
| EMS / Picture Messaging | Yes | - | n/a | Yes | n/a |
| Instant Messaging | - | - | n/a | Yes | n/a |
| MMS | Yes | Yes | n/a | Yes | n/a |
| Text Messaging Templates | Yes | Yes | n/a | Yes | n/a |
| Music | |||||
| Headphone Jack (3.5mm) | - | - | Yes | - | Yes |
| Music Player | - | Yes | n/a | Yes | n/a |
| Productivity | |||||
| Alarm | Yes | Yes | n/a | Yes | n/a |
| Calculator | Yes | Yes | n/a | Yes | n/a |
| Calendar | Yes | Yes | n/a | Yes | n/a |
| To-Do List | Yes | - | n/a | Yes | n/a |
| Voice Memo | Yes | Yes | n/a | Yes | n/a |
| Software | |||||
| BREW | Yes | Yes | n/a | Yes | n/a |
| Games | Yes | Yes | n/a | Yes | n/a |
| Voice | |||||
| HD Voice | - | - | - | - | Yes |
| Headset Jack (2.5 mm) | Yes | - | n/a | - | n/a |
| Speaker Phone | - | Yes | Yes | Yes | Yes |
| Samsung SCH-A610 | Samsung Messager R450 | HTC G2 | Casio Exilim C721 | ZTE Flash | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Samsung SCH-A610 | Samsung Messager R450 | HTC G2 | Casio Exilim C721 | ZTE Flash |
