Compare Phones
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| Phone | Palm Treo 650 (CDMA) | Motorola Backflip | AT&T Maestro 3 | Nokia Lumia 521 / 520 |
| Current U.S. Carriers | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released |
| Specifications | ||||
|---|---|---|---|---|
| Display Size | ? |
3.1" diag. 5 : 3 |
6.5" diag. 20 : 9 |
4" diag. 5 : 3 |
| Display Resolution & Type |
320 x 320 pixels LCD (TFT/TFD) |
320 x 480 pixels (~186 ppi) LCD (TFT/TFD) |
720 x 1600 pixels (~270 ppi) LCD (TFT/TFD) |
480 x 800 pixels (~233 ppi) LCD (TFT/TFD) |
| Display Refresh | ? | 60 Hz | 60 Hz | ? |
| Battery | ? | 1,400 mAh | 3,900 mAh | 1,430 mAh |
| Processor | 312 MHz Intel XScale PXA270 | 528 MHz Qualcomm MSM7201a | 2 GHz MediaTek Helio A22 (MT6761) | 1 GHz Qualcomm Snapdragon S4 MSM8270 |
| RAM | ? | ? | 3 GB | 512 MB |
| Storage | ? raw hardware | ? raw hardware | 32 GB | 8 GB |
| Main Camera | Yes | 5 megapixel | 13 megapixel | 5 megapixel |
| Wide Camera | - | - | 5 megapixel | - |
| Tele Camera | - | - | - | - |
| Video Capture | QVGA (320 x 240) | CIF (352 x 288) | 1080p HD | 720p HD |
| Front Camera | - | - | 5 megapixel | - |
| Weight |
6.3 oz (179g) |
4.7 oz (133g) |
6.24 oz (177g) |
4.39 oz (124g) |
| Dimensions |
4.4" x 2.3" x 0.9" (112 x 58 x 22.9 mm) |
4.25" x 2.09" x 0.6" (108 x 53 x 15.3 mm) |
6.58" x 3.03" x 0.33" (167 x 77 x 8.4 mm) |
4.72" x 2.52" x 0.39" (120 x 64 x 9.9 mm) |
| Platform / OS | Palm OS | Android | Android | Windows |
| Network Bands |
CDMA: 850, 1900 |
WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900 |
4G LTE: 2, 4, 5, 12, 14, 30 |
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| Data Technology | 1xRTT | HSPA 7.2 | LTE (Cat 4) | HSPA+ 21 |
| Features | ||||
| Barometer | - | - | Yes | - |
| Fingerprint Reader | - | - |
Yes stand-alone |
- |
| Flashlight | - | - | Yes | - |
| Accessibility | ||||
| Hearing Aid Compatible | - | Yes | Yes | Yes |
| TTY/TDD (Digital) | - | - | - | Yes |
| Connectivity | ||||
| Bluetooth |
Yes Classic Audio |
Yes Classic Audio |
Yes Classic Audio |
Yes |
| Infrared (IR) | Yes | - | - | - |
| USB | - |
Yes Micro-USB |
Yes USB Type C |
Yes |
| Wi-Fi | - |
Yes 802.11 b,g |
Yes 5 (802.11 a,ac,b,g,n) |
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 | Yes |
| Music | ||||
| Headphone Jack (3.5mm) | - | Yes | Yes | Yes |
| Voice | ||||
| HD Voice | - | - | Yes | - |
| Speaker Phone | Yes | Yes | Yes | Yes |
| Palm Treo 650 (CDMA) | Motorola Backflip | AT&T Maestro 3 | 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) | Motorola Backflip | AT&T Maestro 3 | Nokia Lumia 521 / 520 |
