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| Phone | Palm Pre Plus (CDMA) | Samsung SCH-A990 | Microsoft Lumia 640 | ZTE Whirl |
| Current U.S. Carriers | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released |
| Specifications | ||||
|---|---|---|---|---|
| Display Size |
3.1" diag. 5 : 3 |
? |
5" diag. 16 : 9 |
3.5" diag. 5 : 3 |
| Display Resolution & Type |
320 x 480 pixels (~186 ppi) LCD (TFT/TFD) |
240 x 320 pixels LCD (TFT/TFD) |
720 x 1280 pixels (~294 ppi) LCD (TFT/TFD) |
320 x 480 pixels (~165 ppi) LCD (TFT/TFD) |
| Display Refresh | ? | ? | ? | 60 Hz |
| Battery | ? | 1,000 mAh | 2,500 mAh | 1,300 mAh |
| Processor | TI OMAP 3430 | ? | 1.2 GHz Qualcomm Snapdragon 400 (MSM8926) | 1 GHz Qualcomm Snapdragon S1 MSM7225A |
| RAM | ? | ? | 1 GB | 512 MB |
| Storage | ? raw hardware | ? raw hardware | 8 GB | 4 GB |
| Main Camera | 3 megapixel | 3 megapixel | 8 megapixel | 3 megapixel |
| Wide Camera | - | - | - | - |
| Tele Camera | - | - | - | - |
| Video Capture | ? | ? | 1080p HD | VGA (640 x 480) |
| Front Camera | - | - | 1 megapixel | - |
| Weight |
4.89 oz (139g) |
4.4 oz (125g) |
5.11 oz (145g) |
4.2 oz (119g) |
| Dimensions |
3.9" x 2.3" x 0.67" (99 x 58 x 17 mm) |
3.8" x 1.88" x 0.82" (97 x 48 x 20.8 mm) |
5.56" x 2.84" x 0.35" (141 x 72 x 8.9 mm) |
4.57" x 2.4" x 0.5" (116 x 61 x 12.7 mm) |
| Form Factor | Slide | Clamshell | Slab | Slab |
| Platform / OS | webOS | (proprietary) | Windows | Android |
| Network Bands |
CDMA: 850, 1900 |
CDMA: 850, 1900 |
WCDMA: 2, 4, 5 GSM: 850, 1900 |
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| Data Technology | EVDO rA | EVDO r0 | LTE (Cat 4) | ? |
| Features | ||||
| Flashlight | - | Yes | - | - |
| GPS / Location | n/a | Yes | n/a | n/a |
| Accessibility | ||||
| Adjustable Text Size | n/a | - | n/a | n/a |
| Hearing Aid Compatible |
Yes M4 (very compatible) |
Yes M3 (mostly compatible) |
Yes M3, T4 (very tele-coil compatible) |
Yes M3, T4 (very tele-coil compatible) |
| Multiple Languages | n/a | Yes | n/a | n/a |
| TTY/TDD (Digital) | Yes | Yes | Yes | Yes |
| Alerts | ||||
| Extra Display | - | Yes | - | - |
| Connectivity | ||||
| Bluetooth | Yes | Yes | Yes | Yes |
| Mobile Hotspot | n/a | - | n/a | n/a |
| NFC | - | - | Yes | - |
| USB |
Yes Micro-USB |
Yes |
Yes Micro-USB |
Yes Micro-USB |
| Wi-Fi |
Yes 802.11 b,g |
- |
Yes 4 (802.11 b,g,n) |
Yes 4 (802.11 b,g,n) |
| Contacts | ||||
| Picture ID | n/a | Yes | n/a | n/a |
| Ringer ID | n/a | Yes | n/a | n/a |
| Voice Dialing | n/a | Yes | n/a | n/a |
| Customization | ||||
| Custom Graphics | n/a | Yes | n/a | n/a |
| Custom Ringtones | n/a | Yes | n/a | n/a |
| Real-Music Ringers | n/a | Yes | n/a | n/a |
| Data & Network | ||||
| Data Tethering | n/a | Yes | n/a | n/a |
| WAP / Web Browser | n/a | Yes | n/a | n/a |
| Input | ||||
| Predictive Text Entry | n/a | Yes | n/a | n/a |
| Side Keys | Yes | Yes | Yes | Yes |
| Text Keyboard, Hardware | Yes | - | - | - |
| Touch Screen |
Yes Capacitive |
- |
Yes Capacitive |
Yes |
| Memory | ||||
| Memory Card Slot | - | Yes | Yes | Yes |
| Messaging | ||||
| Email Client | n/a | - | n/a | n/a |
| EMS / Picture Messaging | n/a | Yes | n/a | n/a |
| Instant Messaging | n/a | - | n/a | n/a |
| MMS | n/a | Yes | n/a | n/a |
| Text Messaging Templates | n/a | Yes | n/a | n/a |
| Music | ||||
| FM Radio | - | - | Yes | - |
| Headphone Jack (3.5mm) | Yes | - | Yes | Yes |
| Music Player | n/a | Yes | n/a | n/a |
| Stereo Speakers | - | Yes | - | - |
| Photo & Video | ||||
| DLNA | - | - | Yes | - |
| Miracast | - | - | Yes | - |
| TV Output | - | Yes | - | - |
| Power | ||||
| Wireless Charging | Yes | - | - | - |
| Productivity | ||||
| Alarm | n/a | Yes | n/a | n/a |
| Calculator | n/a | Yes | n/a | n/a |
| Calendar | n/a | Yes | n/a | n/a |
| To-Do List | n/a | - | n/a | n/a |
| Voice Memo | n/a | Yes | n/a | n/a |
| Software | ||||
| BREW | n/a | Yes | n/a | n/a |
| Games | n/a | Yes | n/a | n/a |
| Voice | ||||
| HD Voice | - | - | Yes | - |
| Speaker Phone | Yes | Yes | Yes | Yes |
| Palm Pre Plus (CDMA) | Samsung SCH-A990 | Microsoft Lumia 640 | ZTE Whirl | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Palm Pre Plus (CDMA) | Samsung SCH-A990 | Microsoft Lumia 640 | ZTE Whirl |
