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| Phone | Samsung Jack i637 | Samsung Nexus S 4G | LG K20 / Harmony / Grace |
| Current U.S. Carriers | (none) | (none) | (none) |
| Global Availability | Released | Released | Released |
| Specifications | |||
|---|---|---|---|
| Display Size |
2.4" diag. 4 : 3 |
4" diag. 5 : 3 |
5.3" diag. 16 : 9 |
| Display Resolution & Type |
320 x 240 pixels (~167 ppi) LCD (TFT/TFD) |
480 x 800 pixels (~233 ppi) AMOLED |
720 x 1280 pixels (~277 ppi) LCD (TFT/TFD) |
| Display Refresh | ? | 60 Hz | 60 Hz |
| Battery | 1,480 mAh | 1,500 mAh | 2,800 mAh |
| Processor | ? | 1 GHz Samsung Hummingbird Cortex A8 | 1.4 GHz Qualcomm Snapdragon 425 (MSM8917) |
| RAM | ? | ? | 1.5 GB |
| Storage | ? raw hardware | 16 GB | 16 GB |
| Main Camera | 3 megapixel | 5 megapixel | 8 megapixel |
| Wide Camera | - | - | - |
| Tele Camera | - | - | - |
| Video Capture | ? | WVGA / 480p | 1080p HD |
| Front Camera | - | Yes | 5 megapixel |
| Weight |
3.6 oz (102g) |
4.62 oz (131g) |
5 oz (142g) |
| Dimensions |
4.4" x 2.4" x 0.5" (112 x 61 x 12.7 mm) |
4.88" x 2.48" x 0.44" (124 x 63 x 11.2 mm) |
5.9" x 3" x 0.3" (150 x 76 x 7.6 mm) |
| Platform / OS | Windows Mobile Standard | Android | Android |
| Network Bands |
WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900 |
4G WiMAX: 41 CDMA: 850, 1900 |
4G LTE: 2, 4, 5, 12 WCDMA: 2, 4, 5 GSM: 850, 900, 1800, 1900 |
| Data Technology | HSDPA 3.6 | WiMAX | LTE (Cat 4) |
| Features | |||
| Flashlight | - | - | Yes |
| Accessibility | |||
| Hearing Aid Compatible |
Yes M3 (mostly compatible) |
Yes M4 (very compatible) |
Yes M3, T3 (mostly tele-coil compatible) |
| TTY/TDD (Digital) | - | - | Yes |
| Alerts | |||
| Ringer Profiles | Yes | - | - |
| Connectivity | |||
| Bluetooth | Yes | Yes | Yes |
| NFC | - | Yes | Yes * |
| USB | Yes |
Yes Micro-USB |
Yes Micro-USB |
| Wi-Fi |
Yes 802.11 b,g |
Yes 4 (802.11 b,g,n) |
Yes 4 (802.11 b,g,n) |
| Input | |||
| Side Keys | Yes | Yes | Yes |
| Text Keyboard, Hardware | Yes | - | - |
| Touch Screen | - |
Yes Capacitive |
Yes Capacitive |
| Memory | |||
| Memory Card Slot | Yes | - | Yes |
| Music | |||
| FM Radio | - | - | Yes |
| Headphone Jack (3.5mm) | - | Yes | Yes |
| Voice | |||
| HD Voice | - | - | Yes |
| Speaker Phone | Yes | Yes | Yes |
| * Some versions only | |||
| Samsung Jack i637 | Samsung Nexus S 4G | LG K20 / Harmony / Grace | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Samsung Jack i637 | Samsung Nexus S 4G | LG K20 / Harmony / Grace |
