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| Phone | Apple iPhone 4 (GSM) | Samsung Galaxy Alpha | AT&T Calypso |
| Current U.S. Carriers | (none) | (none) | (none) |
| Global Availability | Released | Released | Released |
| Specifications | |||
|---|---|---|---|
| Display Size |
3.5" diag. 5 : 3 |
4.7" diag. 16 : 9 |
5.5" diag. 18 : 9 |
| Display Resolution & Type |
640 x 960 pixels (~330 ppi) LCD (TFT/TFD) |
720 x 1280 pixels (~312 ppi) AMOLED |
480 x 960 pixels (~195 ppi) LCD (TFT/TFD) |
| Display Refresh | 60 Hz | 60 Hz | 60 Hz |
| Battery | ? | 1,860 mAh | 2,500 mAh |
| Processor | Apple A4 | 2.5 GHz Qualcomm Snapdragon 801 (MSM8974-AC) | 1.5 GHz MediaTek MT6739 |
| RAM | ? | 2 GB | 1 GB |
| Storage | 32 GB * | 32 GB | 16 GB |
| Main Camera | 5 megapixel | 12 megapixel | 5 megapixel |
| Wide Camera | - | - | - |
| Tele Camera | - | - | - |
| Video Capture | 720p HD | 4K UHD | 1080p HD |
| Front Camera | Yes | 2 megapixel | 5 megapixel |
| Weight |
4.8 oz (136g) |
4.06 oz (115g) |
6 oz (170g) |
| Dimensions |
4.5" x 2.31" x 0.37" (114 x 59 x 9.4 mm) |
5.21" x 2.58" x 0.26" (132 x 66 x 6.7 mm) |
5.91" x 2.87" x 0.39" (150 x 73 x 9.9 mm) |
| Platform / OS | iOS | Android | Android |
| Network Bands |
WCDMA: 1, 2, 5, 8 GSM: 850, 900, 1800, 1900 |
4G LTE: 1, 2, 3, 4, 5, 7, 17 WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900 |
4G LTE: 2, 4, 5, 12, 14, 30 WCDMA: 2, 4, 5 GSM: 850, 900, 1800, 1900 |
| Data Technology | HSPA 7.2 | LTE (Cat 4) | LTE (Cat 4) |
| Features | |||
| Fingerprint Reader | - | Yes | - |
| Flashlight | - | Yes | Yes |
| Accessibility | |||
| Hearing Aid Compatible |
Yes M3, T3 (mostly tele-coil compatible) |
Yes M3 (mostly compatible) |
Yes M3, T4 (very tele-coil compatible) |
| TTY/TDD (Digital) | Yes | Yes | Yes |
| Connectivity | |||
| Bluetooth | Yes | Yes | Yes |
| NFC | - | Yes | - |
| USB | Yes | Yes |
Yes USB Type C |
| Wi-Fi |
Yes 4 (802.11 b,g,n) |
Yes 5 (802.11 a,ac,b,g,n) |
Yes 4 (802.11 b,g,n) |
| Input | |||
| Side Keys | Yes | Yes | Yes |
| Touch Screen |
Yes Capacitive |
Yes Capacitive |
Yes Capacitive |
| Memory | |||
| Memory Card Slot | - | - | Yes |
| Music | |||
| Headphone Jack (3.5mm) | Yes | Yes | Yes |
| Stereo Speakers | - | Yes | - |
| Photo & Video | |||
| TV Output | Yes | Yes | - |
| Voice | |||
| HD Voice | - | Yes | Yes |
| Speaker Phone | Yes | Yes | Yes |
| Apple iPhone 4 (GSM) | Samsung Galaxy Alpha | AT&T Calypso | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Apple iPhone 4 (GSM) | Samsung Galaxy Alpha | AT&T Calypso |
