Compare Phones
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| Phone | Palm Treo 650 (CDMA) | LG AX-490 | Samsung Galaxy S II Skyrocket | Nokia Lumia 521 / 520 |
| Current U.S. Carriers | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released |
| Specifications | ||||
|---|---|---|---|---|
| Display Size | ? | ? |
4.5" diag. 5 : 3 |
4" diag. 5 : 3 |
| Display Resolution & Type |
320 x 320 pixels LCD (TFT/TFD) |
128 x 160 pixels LCD (TFT/TFD) |
480 x 800 pixels (~207 ppi) AMOLED |
480 x 800 pixels (~233 ppi) LCD (TFT/TFD) |
| Display Refresh | ? | ? | 60 Hz | ? |
| Battery | ? | 1,100 mAh | 1,850 mAh | 1,430 mAh |
| Processor | 312 MHz Intel XScale PXA270 | ? | 1.5 GHz Qualcomm Snapdragon S3 APQ8060 | 1 GHz Qualcomm Snapdragon S4 MSM8270 |
| RAM | ? | ? | 1 GB | 512 MB |
| Storage | ? raw hardware | ? raw hardware | 16 GB | 8 GB |
| Main Camera | Yes | Yes | 8 megapixel | 5 megapixel |
| Wide Camera | - | - | - | - |
| Tele Camera | - | - | - | - |
| Video Capture | QVGA (320 x 240) | - | 1080p HD | 720p HD |
| Front Camera | - | - | 2 megapixel | - |
| Weight |
6.3 oz (179g) |
3.79 oz (107g) |
4.71 oz (133g) |
4.39 oz (124g) |
| Dimensions |
4.4" x 2.3" x 0.9" (112 x 58 x 22.9 mm) |
3.74" x 1.92" x 1" (95 x 49 x 25.4 mm) |
5.12" x 2.72" x 0.35" (130 x 69 x 9 mm) |
4.72" x 2.52" x 0.39" (120 x 64 x 9.9 mm) |
| Form Factor | Slab | Clamshell | Slab | Slab |
| Platform / OS | Palm OS | (proprietary) | Android | Windows |
| Network Bands |
CDMA: 850, 1900 |
CDMA: 850, 1900 AMPS: 850 |
4G LTE: 4, 17 WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900 |
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| Data Technology | 1xRTT | 1xRTT | LTE (Cat 3) | HSPA+ 21 |
| Features | ||||
| GPS / Location | n/a | Yes | n/a | n/a |
| Accessibility | ||||
| Hearing Aid Compatible | - |
Yes M3 (mostly compatible) |
Yes M3 (mostly compatible) |
Yes M3, T4 (very tele-coil compatible) |
| Multiple Languages | n/a | Yes | n/a | n/a |
| TTY/TDD (Digital) | - | Yes | Yes | Yes |
| Alerts | ||||
| Extra Display | - | Yes | - | - |
| Connectivity | ||||
| Bluetooth | Yes | Yes | Yes | Yes |
| Infrared (IR) | Yes | - | - | - |
| Mobile Hotspot | n/a | - | n/a | n/a |
| NFC | - | - | Yes | - |
| USB | - | Yes |
Yes Micro-USB |
Yes |
| Wi-Fi | - | - |
Yes 4 (802.11 a,b,g,n) |
Yes |
| 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 | - | n/a | n/a |
| Side Keys | Yes | Yes | Yes | Yes |
| Text Keyboard, Hardware | Yes | Yes | - | - |
| Touch Screen | Yes | - |
Yes Capacitive |
Yes Capacitive |
| Memory | ||||
| Memory Card Slot | Yes | - | Yes | Yes |
| Messaging | ||||
| Email Client | n/a | - | 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 | ||||
| Headphone Jack (3.5mm) | - | - | Yes | Yes |
| Music Player | n/a | - | n/a | n/a |
| Stereo Speakers | - | Yes | - | - |
| Photo & Video | ||||
| DLNA | - | - | Yes | - |
| TV Output | - | - | 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 | ||||
| Headset Jack (2.5 mm) | n/a | Yes | n/a | n/a |
| Speaker Phone | Yes | Yes | Yes | Yes |
| Palm Treo 650 (CDMA) | LG AX-490 | Samsung Galaxy S II Skyrocket | Nokia Lumia 521 / 520 | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Palm Treo 650 (CDMA) | LG AX-490 | Samsung Galaxy S II Skyrocket | Nokia Lumia 521 / 520 |
