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| Phone | BLU S1 | Coolpad Quattro 4G | Samsung Droid Charge |
| Current U.S. Carriers | (none) | (none) | (none) |
| Global Availability | Not yet released | Released | Released |
| Specifications | |||
|---|---|---|---|
| Display Size |
5.2" diag. 16 : 9 |
4" diag. 5 : 3 |
4.3" diag. 5 : 3 |
| Display Resolution & Type |
720 x 1280 pixels (~282 ppi) LCD (TFT/TFD) |
480 x 800 pixels (~233 ppi) LCD (TFT/TFD) |
480 x 800 pixels (~217 ppi) AMOLED |
| Display Refresh | 60 Hz | 60 Hz | 60 Hz |
| Battery | 2,800 mAh | 1,600 mAh | 1,500 mAh |
| Processor | 1.5 GHz MediaTek 6750 | ? | 1 GHz Samsung Hummingbird |
| RAM | 2 GB | ? | ? |
| Storage | 16 GB | 512 MB | ? raw hardware |
| Main Camera | 13 megapixel | 3 megapixel | 8 megapixel |
| Wide Camera | - | - | - |
| Tele Camera | - | - | - |
| Video Capture | 1080p HD | VGA (640 x 480) | 720p HD |
| Front Camera | 5 megapixel | Yes | 1 megapixel |
| Weight |
4.83 oz (137g) |
3.31 oz (94g) |
5.06 oz (144g) |
| Dimensions |
5.8" x 2.87" x 0.33" (147 x 73 x 8.4 mm) |
4.96" x 2.6" x 0.51" (126 x 66 x 13 mm) |
5.1" x 2.68" x 0.46" (130 x 68 x 11.7 mm) |
| Platform / OS | Android | Android | Android |
| Network Bands |
4G LTE: 2, 3, 4, 5, 7, 12, 17, 25, 26, 41 WCDMA: 1, 2, 4, 5, 8 CDMA: 800, 850, 1900 GSM: 850, 900, 1800, 1900 |
4G LTE: 2, 4 CDMA: 850, 1700, 1900 |
4G LTE: 13 CDMA: 850, 1900 |
| Data Technology | LTE (Cat 6) | LTE (Cat 3) | LTE (Cat 3) |
| Features | |||
| Fingerprint Reader |
Yes stand-alone |
- | - |
| Flashlight | Yes | - | - |
| Accessibility | |||
| Hearing Aid Compatible | - | Yes | Yes |
| TTY/TDD (Digital) | Yes | Yes | Yes |
| Connectivity | |||
| Bluetooth |
Yes Classic Audio |
Yes Classic Audio |
Yes Classic Audio |
| USB |
Yes Micro-USB |
Yes |
Yes Micro-USB |
| Wi-Fi |
Yes 4 (802.11 b,g,n) |
Yes |
Yes 4 (802.11 b,g,n) |
| Input | |||
| Side Keys | Yes | Yes | Yes |
| Touch Screen | 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 |
| TV Output | - | - | Yes |
| Voice | |||
| HD Voice | Yes | - | - |
| Speaker Phone | Yes | Yes | Yes |
| BLU S1 | Coolpad Quattro 4G | Samsung Droid Charge | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | BLU S1 | Coolpad Quattro 4G | Samsung Droid Charge |
