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| Phone | Samsung Knack U310 | Samsung Galaxy Alpha | Cricket Debut S2 / AT&T Calypso 4 | Palm Treo 650 (CDMA) | LG Stylo 4 |
| Current U.S. Carriers | (none) | (none) | AT&T | (none) | (none) |
| Global Availability | Released | Released | Released | Released | Released |
| Specifications | |||||
|---|---|---|---|---|---|
| Display Size |
2.2" diag. 4 : 3 |
4.7" diag. 16 : 9 |
6.1" diag. 19.5 : 9 |
? |
6.2" diag. 18 : 9 |
| Display Resolution & Type |
176 x 220 pixels (~128 ppi) LCD (TFT/TFD) |
720 x 1280 pixels (~312 ppi) AMOLED |
720 x 1560 pixels (~282 ppi) LCD (TFT/TFD) |
320 x 320 pixels LCD (TFT/TFD) |
1080 x 2160 pixels (~390 ppi) LCD (TFT/TFD) |
| Display Refresh | ? | 60 Hz | 60 Hz | ? | 60 Hz |
| Battery | 1,000 mAh | 1,860 mAh | 3,000 mAh | ? | 3,300 mAh |
| Processor | ? | 2.5 GHz Qualcomm Snapdragon 801 (MSM8974-AC) | 2 GHz MediaTek Helio A22 (MT6761WB) | 312 MHz Intel XScale PXA270 | 1.8 GHz Qualcomm Snapdragon 450 |
| RAM | ? | 2 GB | 3 GB | ? | 2 GB * |
| Storage | ? raw hardware | 32 GB | 64 GB | ? raw hardware | 32 GB * |
| Main Camera | - | 12 megapixel | 8 megapixel | Yes | 13 megapixel |
| Wide Camera | - | - | - | - | - |
| Tele Camera | - | - | - | - | - |
| Video Capture | - | 4K UHD | ? | QVGA (320 x 240) | 1080p HD |
| Front Camera | - | 2 megapixel | 5 megapixel | - | 5 megapixel |
| Weight |
3.63 oz (103g) |
4.06 oz (115g) |
5.64 oz (160g) |
6.3 oz (179g) |
6.07 oz (172g) |
| Dimensions |
3.78" x 2.01" x 0.74" (96 x 51 x 18.8 mm) |
5.21" x 2.58" x 0.26" (132 x 66 x 6.7 mm) |
6.11" x 2.87" x 0.34" (155 x 73 x 8.6 mm) |
4.4" x 2.3" x 0.9" (112 x 58 x 22.9 mm) |
6.31" x 3.06" x 0.33" (160 x 78 x 8.4 mm) |
| Form Factor | Clamshell | Slab | Slab | Slab | Slab |
| Platform / OS | (proprietary) | Android | Android | Palm OS | Android |
| Network Bands |
CDMA: 850, 1900 |
4G LTE: 1, 2, 3, 4, 5, 7, 17 WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900 |
4G LTE: 2, 3, 4, 5, 7, 12, 14, 20, 30, 66 WCDMA: 1, 2, 4, 5, 8 |
CDMA: 850, 1900 |
4G LTE: 1, 2, 3, 4, 5, 7, 12, 13, 14, 20, 29, 30, 38, 41, 66, 71 WCDMA: 1, 2, 4, 5 GSM: 850, 900, 1800, 1900 |
| Data Technology | - | LTE (Cat 4) | LTE (Cat 4) | 1xRTT | LTE (Cat 6) |
| Features | |||||
| Fingerprint Reader | - | Yes | - | - |
Yes stand-alone |
| Flashlight | - | Yes | Yes | - | Yes |
| GPS / Location | Yes | n/a | n/a | n/a | n/a |
| Accessibility | |||||
| Adjustable Text Size | Yes | n/a | n/a | n/a | n/a |
| Hearing Aid Compatible |
Yes M4, T4 (very tele-coil compatible) |
Yes M3 (mostly compatible) |
Yes M4, T4 (very tele-coil compatible) |
- |
Yes M4, T3 (mostly tele-coil compatible) |
| Multiple Languages | Yes | n/a | n/a | n/a | n/a |
| TTY/TDD (Digital) | Yes | Yes | - | - | Yes |
| Alerts | |||||
| Extra Display | Yes | - | - | - | - |
| Connectivity | |||||
| Bluetooth | - | Yes | Yes | Yes | Yes |
| Infrared (IR) | - | - | - | Yes | - |
| Mobile Hotspot | - | n/a | n/a | n/a | n/a |
| NFC | - | Yes | - | - | Yes * |
| USB | - | Yes |
Yes USB Type C |
- |
Yes USB Type C |
| Wi-Fi | - |
Yes 5 (802.11 a,ac,b,g,n) |
Yes 5 (802.11 a,ac,b,g,n) |
- |
Yes 5 (802.11 a,ac,b,g,n) |
| Contacts | |||||
| Picture ID | - | n/a | n/a | n/a | n/a |
| Ringer ID | - | n/a | n/a | n/a | n/a |
| Voice Dialing | Yes | n/a | n/a | n/a | n/a |
| Customization | |||||
| Custom Graphics | - | n/a | n/a | n/a | n/a |
| Custom Ringtones | - | n/a | n/a | n/a | n/a |
| Real-Music Ringers | - | n/a | n/a | n/a | n/a |
| Data & Network | |||||
| Data Tethering | - | n/a | n/a | n/a | n/a |
| WAP / Web Browser | - | n/a | n/a | n/a | n/a |
| Input | |||||
| Predictive Text Entry | Yes | n/a | n/a | n/a | n/a |
| Side Keys | Yes | Yes | Yes | Yes | Yes |
| Stylus | - | - | - | - | Yes |
| Text Keyboard, Hardware | - | - | - | Yes | - |
| Touch Screen | - |
Yes Capacitive |
Yes Capacitive |
Yes |
Yes Capacitive |
| Memory | |||||
| Memory Card Slot | - | - | Yes | Yes | Yes |
| Messaging | |||||
| Email Client | - | n/a | n/a | n/a | n/a |
| EMS / Picture Messaging | Yes | n/a | n/a | n/a | n/a |
| Instant Messaging | - | n/a | n/a | n/a | n/a |
| MMS | - | n/a | n/a | n/a | n/a |
| Text Messaging Templates | - | n/a | n/a | n/a | n/a |
| Music | |||||
| FM Radio | - | - | - | - | Yes |
| Headphone Jack (3.5mm) | - | Yes | Yes | - | Yes |
| Music Player | - | n/a | n/a | n/a | n/a |
| Stereo Speakers | - | Yes | - | - | - |
| Photo & Video | |||||
| DLNA | - | - | - | - | Yes |
| TV Output | - | Yes | - | - | - |
| Power | |||||
| Fast Charging | - | - | Yes | - | - |
| Productivity | |||||
| Alarm | Yes | n/a | n/a | n/a | n/a |
| Calculator | Yes | n/a | n/a | n/a | n/a |
| Calendar | Yes | n/a | n/a | n/a | n/a |
| To-Do List | - | n/a | n/a | n/a | n/a |
| Voice Memo | - | n/a | n/a | n/a | n/a |
| Software | |||||
| Games | - | n/a | n/a | n/a | n/a |
| Voice | |||||
| HD Voice | - | Yes | Yes | - | Yes |
| Headset Jack (2.5 mm) | Yes | n/a | n/a | n/a | n/a |
| Speaker Phone | Yes | Yes | Yes | Yes | Yes |
| * Some versions only | |||||
| Samsung Knack U310 | Samsung Galaxy Alpha | Cricket Debut S2 / AT&T Calypso 4 | Palm Treo 650 (CDMA) | LG Stylo 4 | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Samsung Knack U310 | Samsung Galaxy Alpha | Cricket Debut S2 / AT&T Calypso 4 | Palm Treo 650 (CDMA) | LG Stylo 4 |
