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| Phone | Palm Treo 680 | Samsung PM-A840 | Coolpad Defiant | Samsung Galaxy S 4 Active | Nokia Lumia 521 / 520 |
| Current U.S. Carriers | (none) | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released | Released |
| Specifications | |||||
|---|---|---|---|---|---|
| Display Size | ? | ? |
5" diag. 16 : 9 |
5" diag. 16 : 9 |
4" diag. 5 : 3 |
| Display Resolution & Type |
320 x 320 pixels LCD (TFT/TFD) |
128 x 160 pixels LCD (STN) |
480 x 854 pixels (~196 ppi) LCD (TFT/TFD) |
1080 x 1920 pixels (~441 ppi) LCD (TFT/TFD) |
480 x 800 pixels (~233 ppi) LCD (TFT/TFD) |
| Display Refresh | ? | ? | 60 Hz | 60 Hz | ? |
| Battery | ? | ? | 2,450 mAh | 2,600 mAh | 1,430 mAh |
| Processor | ? | ? | 1.4 GHz Qualcomm Snapdragon 425 (MSM8917) | 1.9 GHz Qualcomm Snapdragon 600 8064T | 1 GHz Qualcomm Snapdragon S4 MSM8270 |
| RAM | ? | ? | 1 GB | 2 GB | 512 MB |
| Storage | ? raw hardware | ? raw hardware | 8 GB | 16 GB | 8 GB |
| Main Camera | Yes | Yes | 5 megapixel | 8 megapixel | 5 megapixel |
| Wide Camera | - | - | - | - | - |
| Tele Camera | - | - | - | - | - |
| Video Capture | CIF (352 x 288) | - | 720p HD | 1080p HD | 720p HD |
| Front Camera | - | - | 2 megapixel | 2 megapixel | - |
| Weight |
5.5 oz (156g) |
3.28 oz (93g) |
6.5 oz (184g) |
5.4 oz (153g) |
4.39 oz (124g) |
| Dimensions |
4.4" x 2.3" x 0.8" (112 x 58 x 20.3 mm) |
3.54" x 1.85" x 0.94" (90 x 47 x 23.9 mm) |
5.69" x 2.81" x 0.4" (145 x 71 x 10.2 mm) |
5.5" x 2.81" x 0.36" (140 x 71 x 9.1 mm) |
4.72" x 2.52" x 0.39" (120 x 64 x 9.9 mm) |
| Form Factor | Slab | Clamshell | Slab | Slab | Slab |
| Platform / OS | Palm OS | (proprietary) | Android | Android | Windows |
| Network Bands |
GSM: 850, 900, 1800, 1900 |
CDMA: 850, 1900 AMPS: 850 |
4G LTE: 2, 4, 5, 12 WCDMA: 2, 4, 5 GSM: 850, 900, 1800, 1900 |
4G LTE: 2, 4, 5, 17 WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900 |
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| Data Technology | EDGE | 1xRTT | LTE (Cat 4) | LTE (Cat 3) | HSPA+ 21 |
| Features | |||||
| Flashlight | - | - | Yes | Yes | - |
| GPS / Location | n/a | Yes | n/a | n/a | n/a |
| Ruggedized | - | - | - | Yes | - |
| Water-Resistant | - | - | - |
Yes IPX7 (snorkeling) |
- |
| Accessibility | |||||
| Adjustable Text Size | n/a | - | n/a | n/a | n/a |
| Hearing Aid Compatible | - |
Yes M3 (mostly compatible) |
Yes M4, T3 (mostly tele-coil compatible) |
Yes M3 (mostly compatible) |
Yes M3, T4 (very tele-coil compatible) |
| Multiple Languages | n/a | Yes | n/a | n/a | n/a |
| TTY/TDD (Digital) | Yes | Yes | Yes | Yes | Yes |
| Alerts | |||||
| Extra Display | - | Yes | - | - | - |
| Connectivity | |||||
| Bluetooth | Yes | - | Yes | Yes | Yes |
| Infrared (IR) | Yes | - | - | Yes | - |
| Mobile Hotspot | n/a | - | n/a | n/a | n/a |
| NFC | - | - | - | Yes | - |
| USB | Yes | - |
Yes Micro-USB |
Yes Micro-USB |
Yes |
| Wi-Fi | - | - |
Yes 4 (802.11 b,g,n) |
Yes 5 (802.11 a,ac,b,g,n) |
Yes |
| Contacts | |||||
| Picture ID | n/a | Yes | n/a | n/a | n/a |
| Ringer ID | n/a | Yes | n/a | n/a | n/a |
| Voice Dialing | n/a | Yes | n/a | n/a | n/a |
| Customization | |||||
| Custom Graphics | n/a | Yes | n/a | n/a | n/a |
| Custom Ringtones | n/a | Yes | n/a | n/a | n/a |
| Real-Music Ringers | n/a | - | n/a | n/a | n/a |
| Data & Network | |||||
| Data Tethering | n/a | - | n/a | n/a | n/a |
| External Antenna Jack | n/a | - | n/a | n/a | n/a |
| WAP / Web Browser | n/a | Yes | n/a | n/a | n/a |
| Input | |||||
| Predictive Text Entry | n/a | Yes | n/a | n/a | n/a |
| Side Keys | Yes | Yes | Yes | Yes | Yes |
| Text Keyboard, Hardware | Yes | - | - | - | - |
| Touch Screen | Yes | - |
Yes Capacitive |
Yes Capacitive |
Yes Capacitive |
| Memory | |||||
| Memory Card Slot | Yes | - | Yes | Yes | Yes |
| Messaging | |||||
| Email Client | n/a | - | n/a | n/a | n/a |
| Instant Messaging | n/a | - | n/a | n/a | n/a |
| MMS | n/a | - | n/a | n/a | n/a |
| Text Messaging Templates | n/a | Yes | n/a | n/a | n/a |
| Music | |||||
| Headphone Jack (3.5mm) | - | - | Yes | Yes | Yes |
| Music Player | n/a | - | n/a | n/a | n/a |
| Photo & Video | |||||
| DLNA | - | - | - | Yes | - |
| Miracast | - | - | - | Yes | - |
| Productivity | |||||
| Alarm | n/a | Yes | n/a | n/a | n/a |
| Calculator | n/a | Yes | n/a | n/a | n/a |
| Calendar | n/a | Yes | n/a | n/a | n/a |
| To-Do List | n/a | Yes | n/a | n/a | n/a |
| Voice Memo | n/a | Yes | n/a | n/a | n/a |
| Software | |||||
| Games | n/a | Yes | n/a | n/a | n/a |
| Java (J2ME) | n/a | Yes | n/a | n/a | n/a |
| Voice | |||||
| Headset Jack (2.5 mm) | n/a | Yes | n/a | n/a | n/a |
| Speaker Phone | Yes | Yes | Yes | Yes | Yes |
| Palm Treo 680 | Samsung PM-A840 | Coolpad Defiant | Samsung Galaxy S 4 Active | Nokia Lumia 521 / 520 | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Palm Treo 680 | Samsung PM-A840 | Coolpad Defiant | Samsung Galaxy S 4 Active | Nokia Lumia 521 / 520 |
