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| Phone | LG K40 / Harmony 3 | Samsung SGH-X640 | Coolpad Legacy S / Legacy SR | Sony Ericsson S710a | Alcatel Idol 4S |
| Current U.S. Carriers | (none) | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released | Not yet released |
| Specifications | |||||
|---|---|---|---|---|---|
| Display Size |
5.7" diag. 18 : 9 |
? |
5.5" diag. 18 : 9 |
? |
5.5" diag. 16 : 9 |
| Display Resolution & Type |
720 x 1440 pixels (~282 ppi) LCD (TFT/TFD) |
128 x 160 pixels LCD (TFT/TFD) |
720 x 1440 pixels (~295 ppi) LCD (TFT/TFD) |
240 x 320 pixels LCD (TFT/TFD) |
1440 x 2560 pixels (~534 ppi) AMOLED |
| Display Refresh | 60 Hz | ? | 60 Hz | ? | 60 Hz |
| Battery | 3,000 mAh | 800 mAh | 2,450 mAh | 780 mAh | 3,000 mAh |
| Processor | 1.8 GHz Qualcomm Snapdragon 450 | ? | 2 GHz MediaTek Helio A22 (MT6761) | ? | 1.8 GHz Qualcomm Snapdragon 652 (MSM8976) |
| RAM | 2 GB | ? | 2 GB | ? | 3 GB |
| Storage | 32 GB | ? raw hardware | 16 GB | ? raw hardware | 32 GB |
| Main Camera | 13 megapixel | Yes | 8 megapixel | 1 megapixel | 16 megapixel |
| Wide Camera | - | - | - | - | - |
| Tele Camera | - | - | - | - | - |
| Video Capture | 1080p HD | - | 1080p HD | QCIF (176 x 144) | 4K UHD |
| Front Camera | 5 megapixel | - | 5 megapixel | - | 8 megapixel |
| Weight |
5.11 oz (145g) |
3 oz (85g) |
5.6 oz (159g) |
4.83 oz (137g) |
5.26 oz (149g) |
| Dimensions |
6.02" x 2.83" x 0.32" (153 x 72 x 8.1 mm) |
3.43" x 1.81" x 0.91" (87 x 46 x 23.1 mm) |
6" x 2.8" x 0.37" (152 x 71 x 9.4 mm) |
4.23" x 1.93" x 0.96" (107 x 49 x 24.4 mm) |
6.06" x 2.97" x 0.28" (154 x 75 x 7 mm) |
| Form Factor | Slab | Clamshell | Slab | Swivel | Slab |
| Platform / OS | Android | (proprietary) | Android | (proprietary) | Android |
| Network Bands |
4G LTE: 2, 4, 5, 12, 13, 14, 25, 26, 29, 30, 41, 66, 71 WCDMA: 2, 4, 5 CDMA: 800, 850, 1900 GSM: 850, 900, 1800, 1900 |
GSM: 900, 1800, 1900 |
4G LTE: 2, 4, 5, 12, 13, 25, 26, 41, 66, 71 WCDMA: 2, 4, 5 CDMA: 800, 850, 1900 GSM: 850, 900, 1800, 1900 |
GSM: 850, 1800, 1900 |
4G LTE: 2, 4, 5, 7, 12, 17 WCDMA: 1, 2, 4, 5 GSM: 850, 900, 1800, 1900 |
| Data Technology | LTE (Cat 6) | GPRS | LTE (Cat 4) | EDGE | LTE (Cat 4) |
| Features | |||||
| Fingerprint Reader |
Yes stand-alone |
- | - | - | Yes * |
| Flashlight | Yes | - | Yes | - | Yes |
| GPS / Location | n/a | - | n/a | - | n/a |
| Accessibility | |||||
| Adjustable Text Size | n/a | - | n/a | - | n/a |
| Hearing Aid Compatible | Yes | - | Yes | - | Yes |
| Multiple Languages | n/a | Yes | n/a | Yes | n/a |
| TTY/TDD (Digital) | Yes | - | Yes | Yes | Yes |
| Alerts | |||||
| Ringer Profiles | - | - | - | Yes | - |
| Connectivity | |||||
| Bluetooth |
Yes Classic Audio |
- |
Yes Classic Audio |
Yes Classic Audio |
Yes Classic Audio |
| Infrared (IR) | - | - | - | Yes | - |
| Mobile Hotspot | n/a | - | n/a | - | n/a |
| NFC | Yes * | - | - | - | Yes |
| USB |
Yes Micro-USB |
- |
Yes USB Type C |
Yes |
Yes Micro-USB |
| Wi-Fi |
Yes 5 (802.11 a,ac,b,g,n) |
- |
Yes 4 (802.11 b,g,n) |
- |
Yes 5 (802.11 a,ac,b,g,n) |
| Contacts | |||||
| Picture ID | n/a | Yes | n/a | Yes | n/a |
| Ringer ID | n/a | Yes | n/a | Yes | n/a |
| Voice Dialing | n/a | - | n/a | Yes | n/a |
| Customization | |||||
| Custom Graphics | n/a | Yes | n/a | Yes | n/a |
| Custom Ringtones | n/a | Yes | n/a | Yes | n/a |
| Real-Music Ringers | n/a | - | n/a | - | n/a |
| Data & Network | |||||
| Data Tethering | n/a | - | n/a | Yes | n/a |
| Dual-SIM | - | - | - | - | Yes * |
| WAP / Web Browser | n/a | Yes | n/a | Yes | n/a |
| Input | |||||
| Predictive Text Entry | n/a | Yes | n/a | Yes | n/a |
| Side Keys | Yes | Yes | Yes | Yes | Yes |
| Touch Screen | Yes | - | Yes | - | Yes |
| Memory | |||||
| Memory Card Slot | Yes | - | Yes | Yes | Yes |
| Messaging | |||||
| Email Client | n/a | - | n/a | Yes | n/a |
| EMS / Picture Messaging | n/a | Yes | n/a | Yes | n/a |
| Instant Messaging | n/a | - | n/a | - | n/a |
| MMS | n/a | Yes | n/a | Yes | n/a |
| Text Messaging Templates | n/a | Yes | n/a | Yes | n/a |
| Music | |||||
| FM Radio | Yes | - | Yes | - | - |
| Headphone Jack (3.5mm) | Yes | - | Yes | - | Yes |
| Music Player | n/a | - | n/a | Yes | n/a |
| Stereo Speakers | - | - | - | - | Yes |
| Photo & Video | |||||
| DLNA | Yes | - | - | - | - |
| Miracast | - | - | - | - | Yes |
| Power | |||||
| Fast Charging | - | - | - | - | Yes |
| Productivity | |||||
| Alarm | n/a | Yes | n/a | Yes | n/a |
| Calculator | n/a | Yes | n/a | Yes | n/a |
| Calendar | n/a | Yes | n/a | Yes | n/a |
| To-Do List | n/a | Yes | n/a | Yes | n/a |
| Voice Memo | n/a | Yes | n/a | Yes | n/a |
| Software | |||||
| Games | n/a | Yes | n/a | Yes | n/a |
| Java (J2ME) | n/a | Yes | n/a | Yes | n/a |
| Voice | |||||
| HD Voice | Yes | - | - | - | Yes |
| Headset Jack (2.5 mm) | n/a | Yes | n/a | - | n/a |
| Speaker Phone | Yes | Yes | Yes | Yes | Yes |
| * Some versions only | |||||
| LG K40 / Harmony 3 | Samsung SGH-X640 | Coolpad Legacy S / Legacy SR | Sony Ericsson S710a | Alcatel Idol 4S | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | LG K40 / Harmony 3 | Samsung SGH-X640 | Coolpad Legacy S / Legacy SR | Sony Ericsson S710a | Alcatel Idol 4S |
