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| Phone | Casio G'zOne Boulder | Kyocera Brigadier | Amazon Fire | Samsung SGH-A657 |
| Current U.S. Carriers | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released |
| Specifications | ||||
|---|---|---|---|---|
| Display Size |
2" diag. 4 : 3 |
4.5" diag. 16 : 9 |
4.7" diag. 16 : 9 |
? |
| Display Resolution & Type |
240 x 320 pixels (~200 ppi) LCD (TFT/TFD) |
720 x 1280 pixels (~326 ppi) LCD (TFT/TFD) |
720 x 1280 pixels (~312 ppi) LCD (TFT/TFD) |
176 x 220 pixels LCD (TFT/TFD) |
| Display Refresh | ? | 60 Hz | ? | ? |
| Battery | 810 mAh | 3,100 mAh | 2,400 mAh | 1,420 mAh |
| Processor | ? | 1.4 GHz Qualcomm Snapdragon 400 MSM8928 | 2.2 GHz Qualcomm Snapdragon 800 | ? |
| RAM | ? | 2 GB | 2 GB | ? |
| Storage | ? raw hardware | 16 GB | 32 GB * | ? raw hardware |
| Main Camera | 1 megapixel | 8 megapixel | 13 megapixel | - |
| Wide Camera | - | - | - | - |
| Tele Camera | - | - | - | - |
| Video Capture | ? | 1080p HD | 1080p HD | - |
| Front Camera | - | 2 megapixel | 2 megapixel | - |
| Weight |
4.9 oz (139g) |
6.6 oz (187g) |
5.64 oz (160g) |
4.34 oz (123g) |
| Dimensions |
3.9" x 2" x 0.9" (99 x 51 x 22.9 mm) |
5.37" x 2.69" x 0.52" (136 x 68 x 13.2 mm) |
5.5" x 2.6" x 0.35" (140 x 66 x 8.9 mm) |
4.53" x 2.05" x 0.77" (115 x 52 x 19.6 mm) |
| Form Factor | Clamshell | Slab | Slab | Slab |
| Platform / OS | (proprietary) | Android | (proprietary) | (proprietary) |
| Network Bands |
CDMA: 850, 1900 |
4G LTE: 4, 13 WCDMA: 1, 2, 5, 8 CDMA: 850, 1900 GSM: 850, 900, 1800, 1900 |
4G LTE: 1, 2, 3, 4, 5, 7, 8, 17 WCDMA: 1, 2, 4, 5, 8 GSM: 850, 900, 1800, 1900 |
WCDMA: 2, 5 GSM: 850, 900, 1800, 1900 |
| Data Technology | EVDO rA | LTE (Cat 3) | LTE (Cat 4) | HSDPA 3.6 |
| Features | ||||
| Flashlight | Yes | Yes | Yes | Yes |
| GPS / Location | Yes | n/a | Yes | Yes |
| Ruggedized | Yes | Yes | - | Yes |
| Water-Resistant | Yes |
Yes IPX8 (SCUBA) |
- | - |
| Accessibility | ||||
| Adjustable Text Size | - | n/a | - | - |
| Hearing Aid Compatible | Yes | Yes | Yes | - |
| Multiple Languages | Yes | n/a | Yes | Yes |
| TTY/TDD (Digital) | Yes | Yes | Yes | Yes |
| Alerts | ||||
| Extra Display | Yes | - | - | - |
| Connectivity | ||||
| Bluetooth |
Yes Classic Audio |
Yes Classic Audio |
Yes Classic Audio |
Yes Classic Audio |
| Mobile Hotspot | - | n/a | Yes | - |
| NFC | - | Yes | Yes | - |
| USB | Yes |
Yes Micro-USB |
Yes Micro-USB |
Yes |
| Wi-Fi | - |
Yes 5 (802.11 a,ac,b,g,n) |
Yes 5 (802.11 a,ac,b,g,n) |
- |
| Contacts | ||||
| Picture ID | Yes | n/a | Yes | Yes |
| Ringer ID | Yes | n/a | Yes | Yes |
| Voice Dialing | Yes | n/a | Yes | - |
| Customization | ||||
| Changeable Body Plates | Yes | - | - | - |
| Custom Graphics | Yes | n/a | - | Yes |
| Custom Ringtones | Yes | n/a | Yes | Yes |
| Real-Music Ringers | - | n/a | - | Yes |
| Data & Network | ||||
| Data Tethering | Yes | n/a | Yes | Yes |
| WAP / Web Browser | Yes | n/a | Yes | Yes |
| Input | ||||
| Predictive Text Entry | Yes | n/a | Yes | Yes |
| Side Keys | Yes | Yes | Yes | Yes |
| Touch Screen | - | Yes | Yes | - |
| Memory | ||||
| Memory Card Slot | Yes | Yes | - | Yes |
| Messaging | ||||
| Email Client | - | n/a | Yes | Yes |
| EMS / Picture Messaging | Yes | n/a | - | - |
| Instant Messaging | - | n/a | - | Yes |
| MMS | Yes | n/a | Yes | Yes |
| Text Messaging Templates | Yes | n/a | Yes | Yes |
| Music | ||||
| Headphone Jack (3.5mm) | - | Yes | Yes | - |
| Music Player | Yes | n/a | Yes | Yes |
| Stereo Speakers | - | - | Yes | - |
| Photo & Video | ||||
| Miracast | - | Yes | Yes | - |
| TV Output | - | - | Yes | - |
| Power | ||||
| Wireless Charging | - | Yes | - | - |
| Productivity | ||||
| Alarm | Yes | n/a | Yes | Yes |
| Calculator | Yes | n/a | Yes | Yes |
| Calendar | Yes | n/a | Yes | Yes |
| To-Do List | - | n/a | - | Yes |
| Voice Memo | Yes | n/a | Yes | Yes |
| Software | ||||
| BREW | Yes | n/a | - | - |
| Games | Yes | n/a | Yes | Yes |
| Java (J2ME) | - | n/a | - | Yes |
| Voice | ||||
| HD Voice | - | - | Yes | - |
| Push-To-Talk | Yes | Yes | - | Yes |
| Speaker Phone | Yes | Yes | Yes | Yes |
| Casio G'zOne Boulder | Kyocera Brigadier | Amazon Fire | Samsung SGH-A657 | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Casio G'zOne Boulder | Kyocera Brigadier | Amazon Fire | Samsung SGH-A657 |
