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| Phone | Palm Treo 650 (CDMA) | Palm Pixi Plus (GSM) | Sony Xperia X | Nokia Lumia 521 / 520 |
| Current U.S. Carriers | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released |
| Specifications | ||||
|---|---|---|---|---|
| Display Size | ? |
2.6" diag. 4 : 3 |
5" diag. 16 : 9 |
4" diag. 5 : 3 |
| Display Resolution & Type |
320 x 320 pixels LCD (TFT/TFD) |
320 x 400 pixels (~195 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 | ? |
| Battery | ? | 1,150 mAh | 2,620 mAh | 1,430 mAh |
| Processor | 312 MHz Intel XScale PXA270 | Qualcomm S1 MSM7227 | 1.8 GHz Qualcomm Snapdragon 650 (MSM8956) | 1 GHz Qualcomm Snapdragon S4 MSM8270 |
| RAM | ? | ? | 3 GB | 512 MB |
| Storage | ? raw hardware | ? raw hardware | 32 GB * | 8 GB |
| Main Camera | Yes | 2 megapixel | 23 megapixel | 5 megapixel |
| Wide Camera | - | - | - | - |
| Tele Camera | - | - | - | - |
| Video Capture | QVGA (320 x 240) | VGA (640 x 480) | 1080p HD | 720p HD |
| Front Camera | - | - | 13 megapixel | - |
| Weight |
6.3 oz (179g) |
3.26 oz (92g) |
5.4 oz (153g) |
4.39 oz (124g) |
| Dimensions |
4.4" x 2.3" x 0.9" (112 x 58 x 22.9 mm) |
4.37" x 2.17" x 0.43" (111 x 55 x 10.9 mm) |
5.6" x 2.7" x 0.3" (142 x 69 x 7.6 mm) |
4.72" x 2.52" x 0.39" (120 x 64 x 9.9 mm) |
| Platform / OS | Palm OS | webOS | Android | Windows |
| Network Bands |
CDMA: 850, 1900 |
WCDMA: 2, 5 GSM: 850, 900, 1800, 1900 |
4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 17, 20, 26, 28, 40, 41 WCDMA: 1, 2, 4, 5, 8 GSM: 850, 900, 1800, 1900 |
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| Data Technology | 1xRTT | HSDPA 3.6 | LTE (Cat 6) | HSPA+ 21 |
| Features | ||||
| Fingerprint Reader | - | - | Yes * | - |
| Flashlight | - | - | Yes | - |
| Accessibility | ||||
| Hearing Aid Compatible | - | Yes | Yes | Yes |
| TTY/TDD (Digital) | - | Yes | Yes | Yes |
| Connectivity | ||||
| Bluetooth | Yes | Yes | Yes | Yes |
| Infrared (IR) | Yes | - | - | - |
| MirrorLink | - | - | Yes | - |
| NFC | - | - | Yes | - |
| USB | - |
Yes Micro-USB |
Yes Micro-USB |
Yes |
| Wi-Fi | - |
Yes 802.11 b,g |
Yes 5 (802.11 a,ac,b,g,n) |
Yes |
| Data & Network | ||||
| Dual-SIM | - | - | Yes * | - |
| Input | ||||
| Side Keys | Yes | Yes | Yes | Yes |
| Text Keyboard, Hardware | Yes | Yes | - | - |
| Touch Screen | Yes | Yes | Yes | Yes |
| Memory | ||||
| Memory Card Slot | Yes | - | Yes | Yes |
| Music | ||||
| FM Radio | - | - | Yes | - |
| Headphone Jack (3.5mm) | - | Yes | Yes | Yes |
| Photo & Video | ||||
| DLNA | - | - | Yes | - |
| Miracast | - | - | Yes | - |
| Power | ||||
| Fast Charging | - | - | Yes | - |
| Voice | ||||
| HD Voice | - | - | Yes | - |
| Speaker Phone | Yes | Yes | Yes | Yes |
| * Some versions only | ||||
| Palm Treo 650 (CDMA) | Palm Pixi Plus (GSM) | Sony Xperia X | 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) | Palm Pixi Plus (GSM) | Sony Xperia X | Nokia Lumia 521 / 520 |
