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| Phone | AT&T Calypso | LG Velvet | Samsung Zeal / Alias 2 SCH-U750 | Siemens CT66 / C66 / C65 / C71 / C70 |
| Current U.S. Carriers | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released |
| Specifications | ||||
|---|---|---|---|---|
| Display Size |
5.5" diag. 18 : 9 |
6.8" diag. 20.5 : 9 |
2.6" diag. 4 : 3 |
? |
| Display Resolution & Type |
480 x 960 pixels (~195 ppi) LCD (TFT/TFD) |
1080 x 2460 pixels (~395 ppi) AMOLED |
240 x 320 pixels (~154 ppi) LCD (TFT/TFD) |
130 x 130 pixels LCD (Color) |
| Display Refresh | 60 Hz | 60 Hz | ? | ? |
| Battery | 2,500 mAh | 4,300 mAh | 880 mAh | 600 mAh |
| Processor | 1.5 GHz MediaTek MT6739 | Qualcomm Snapdragon 765G | ? | ? |
| RAM | 1 GB | 6 GB | ? | ? |
| Storage | 16 GB | 128 GB | ? raw hardware | ? raw hardware |
| Main Camera | 5 megapixel | 48 megapixel | 2 megapixel | Yes |
| Wide Camera | - | 8 megapixel | - | - |
| Tele Camera | - | - | - | - |
| Video Capture | 1080p HD | 4K UHD | QCIF (176 x 144) | - |
| Front Camera | 5 megapixel | 16 megapixel | - | - |
| Weight |
6 oz (170g) |
6.35 oz (180g) |
4.34 oz (123g) |
3 oz (85g) |
| Dimensions |
5.91" x 2.87" x 0.39" (150 x 73 x 9.9 mm) |
6.58" x 2.92" x 0.31" (167 x 74 x 7.9 mm) |
4.01" x 2.04" x 0.67" (102 x 52 x 17 mm) |
4.1" x 1.8" x 0.7" (104 x 46 x 17.8 mm) |
| Form Factor | Slab | Slab | Clamshell | Slab |
| Platform / OS | Android | Android | (proprietary) | (proprietary) |
| Network Bands |
4G LTE: 2, 4, 5, 12, 14, 30 WCDMA: 2, 4, 5 GSM: 850, 900, 1800, 1900 |
5G: 2, 5, 25, 41, 66, 71, 260, 261 4G LTE: 1, 2, 3, 4, 5, 7, 12, 13, 14, 20, 25, 29, 30, 38, 39, 40, 41, 46, 66, 71 WCDMA: 1, 2, 4, 5 CDMA: 800, 850, 1900 GSM: 850, 900, 1800, 1900 |
CDMA: 850, 1900 |
GSM: 850, 1800, 1900 |
| Data Technology | LTE (Cat 4) | NR (5G) | EVDO r0 | GPRS |
| Features | ||||
| Barometer | - | Yes | - | - |
| Fingerprint Reader | - |
Yes in-display (optical) |
- | - |
| Flashlight | Yes | Yes | - | - |
| GPS / Location | n/a | n/a | Yes | - |
| Water-Resistant | - |
Yes IPX8 (SCUBA) |
- | - |
| Accessibility | ||||
| Adjustable Text Size | n/a | n/a | Yes | - |
| Hearing Aid Compatible |
Yes M3, T4 (very tele-coil compatible) |
Yes M4, T3 (mostly tele-coil compatible) |
Yes M4 (very compatible) |
- |
| Multiple Languages | n/a | n/a | Yes | Yes |
| TTY/TDD (Digital) | Yes | Yes | Yes | - |
| Alerts | ||||
| Extra Display | - | - | Yes | - |
| Ringer Profiles | - | - | - | Yes |
| Connectivity | ||||
| Bluetooth | Yes | Yes | Yes | - |
| Infrared (IR) | - | - | - | Yes |
| NFC | - | Yes | - | - |
| USB |
Yes USB Type C |
Yes USB Type C |
Yes | Yes |
| Wi-Fi |
Yes 4 (802.11 b,g,n) |
Yes 5 (802.11 a,ac,b,g,n) |
- | - |
| Contacts | ||||
| Picture ID | n/a | n/a | Yes | Yes |
| Ringer ID | n/a | n/a | Yes | Yes |
| Voice Dialing | n/a | n/a | Yes | - |
| Customization | ||||
| Changeable Body Plates | - | - | - | Yes |
| Custom Graphics | n/a | n/a | Yes | Yes |
| Custom Ringtones | n/a | n/a | Yes | Yes |
| Real-Music Ringers | n/a | n/a | Yes | - |
| Data & Network | ||||
| Data Tethering | n/a | n/a | Yes | - |
| WAP / Web Browser | n/a | n/a | Yes | Yes |
| Input | ||||
| Predictive Text Entry | n/a | n/a | Yes | Yes |
| Side Keys | Yes | Yes | Yes | - |
| Text Keyboard, Hardware | - | - | Yes | - |
| Touch Screen |
Yes Capacitive |
Yes Capacitive |
- | - |
| Memory | ||||
| Memory Card Slot | Yes | Yes | Yes | - |
| Messaging | ||||
| Email Client | n/a | n/a | Yes | - |
| EMS / Picture Messaging | n/a | n/a | - | Yes |
| Instant Messaging | n/a | n/a | Yes | - |
| MMS | n/a | n/a | Yes | Yes |
| Text Messaging Templates | n/a | n/a | Yes | Yes |
| Music | ||||
| FM Radio | - | Yes | - | - |
| Headphone Jack (3.5mm) | Yes | Yes | - | - |
| Music Player | n/a | n/a | Yes | - |
| Stereo Speakers | - | Yes | - | - |
| Photo & Video | ||||
| DLNA | - | Yes | - | - |
| Miracast | - | Yes | - | - |
| TV Output | - | Yes | - | - |
| Power | ||||
| Fast Charging | - | Yes | - | - |
| Wireless Charging | - | Yes | - | - |
| Productivity | ||||
| Alarm | n/a | n/a | Yes | Yes |
| Calculator | n/a | n/a | Yes | Yes |
| Calendar | n/a | n/a | Yes | Yes |
| To-Do List | n/a | n/a | - | Yes |
| Voice Memo | n/a | n/a | Yes | Yes |
| Software | ||||
| BREW | n/a | n/a | Yes | - |
| Games | n/a | n/a | Yes | Yes |
| Java (J2ME) | n/a | n/a | - | Yes |
| Voice | ||||
| Call Screening | - | - | - | Yes |
| HD Voice | Yes | Yes | - | - |
| Headset Jack (2.5 mm) | n/a | n/a | Yes | - |
| Push-To-Talk | - | - | - | Yes * |
| Speaker Phone | Yes | Yes | Yes | Yes |
| * Some versions only | ||||
| AT&T Calypso | LG Velvet | Samsung Zeal / Alias 2 SCH-U750 | Siemens CT66 / C66 / C65 / C71 / C70 | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | AT&T Calypso | LG Velvet | Samsung Zeal / Alias 2 SCH-U750 | Siemens CT66 / C66 / C65 / C71 / C70 |
