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| Phone | LG K40 / Harmony 3 | LG Premier Pro LTE | Samsung SPH/SCH-N300 | AT&T Maestro 3 |
| Current U.S. Carriers | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released |
| Specifications | ||||
|---|---|---|---|---|
| Display Size |
5.7" diag. 18 : 9 |
5.3" diag. 16 : 9 |
? |
6.5" diag. 20 : 9 |
| Display Resolution & Type |
720 x 1440 pixels (~282 ppi) LCD (TFT/TFD) |
720 x 1280 pixels (~277 ppi) LCD (TFT/TFD) |
128 x 64 pixels |
720 x 1600 pixels (~270 ppi) LCD (TFT/TFD) |
| Display Refresh | 60 Hz | 60 Hz | ? | 60 Hz |
| Battery | 3,000 mAh | 2,880 mAh | ? | 3,900 mAh |
| Processor | 1.8 GHz Qualcomm Snapdragon 450 | 1.4 GHz Qualcomm Snapdragon 425 (MSM8917) | ? | 2 GHz MediaTek Helio A22 (MT6761) |
| RAM | 2 GB | 2 GB | ? | 3 GB |
| Storage | 32 GB | 16 GB | ? raw hardware | 32 GB |
| Main Camera | 13 megapixel | 8 megapixel | - | 13 megapixel |
| Wide Camera | - | - | - | 5 megapixel |
| Tele Camera | - | - | - | - |
| Video Capture | 1080p HD | 1080p HD | - | 1080p HD |
| Front Camera | 5 megapixel | 5 megapixel | - | 5 megapixel |
| Weight |
5.11 oz (145g) |
5.93 oz (168g) |
4.1 oz (116g) |
6.24 oz (177g) |
| Dimensions |
6.02" x 2.83" x 0.32" (153 x 72 x 8.1 mm) |
5.85" x 2.96" x 0.34" (149 x 75 x 8.6 mm) |
4.5" x 1.9" x 0.9" (114 x 48 x 22.9 mm) |
6.58" x 3.03" x 0.33" (167 x 77 x 8.4 mm) |
| Form Factor | Slab | Slab | Flip | Slab |
| Platform / OS | Android | 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 |
CDMA: 850, 1900 AMPS: 850 |
4G LTE: 2, 4, 5, 12, 14, 30 |
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| Data Technology | LTE (Cat 6) | LTE (Cat 4) | - | LTE (Cat 4) |
| Features | ||||
| Barometer | - | - | - | Yes |
| Fingerprint Reader |
Yes stand-alone |
- | - |
Yes stand-alone |
| Flashlight | Yes | Yes | - | Yes |
| GPS / Location | n/a | n/a | Yes | n/a |
| Accessibility | ||||
| Hearing Aid Compatible |
Yes M3, T3 (mostly tele-coil compatible) |
Yes M3, T3 (mostly tele-coil compatible) |
- |
Yes M4, T4 (very tele-coil compatible) |
| Multiple Languages | n/a | n/a | - | n/a |
| TTY/TDD (Digital) | Yes | Yes | - | - |
| Connectivity | ||||
| Bluetooth | Yes | Yes | - | Yes |
| NFC | Yes * | - | - | - |
| USB |
Yes Micro-USB |
Yes Micro-USB |
- |
Yes USB Type C |
| 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 | ||||
| Voice Dialing | n/a | n/a | Yes | n/a |
| Data & Network | ||||
| Data Tethering | n/a | n/a | Yes | n/a |
| WAP / Web Browser | n/a | n/a | Yes | n/a |
| Input | ||||
| Predictive Text Entry | n/a | n/a | Yes | n/a |
| Side Keys | Yes | Yes | Yes | Yes |
| Touch Screen |
Yes Capacitive |
Yes Capacitive |
- |
Yes Capacitive |
| Memory | ||||
| Memory Card Slot | Yes | Yes | - | Yes |
| Music | ||||
| FM Radio | Yes | Yes | - | - |
| Headphone Jack (3.5mm) | Yes | Yes | - | Yes |
| Photo & Video | ||||
| DLNA | Yes | - | - | - |
| Productivity | ||||
| Alarm | n/a | n/a | Yes | n/a |
| Calculator | n/a | n/a | Yes | n/a |
| Calendar | n/a | n/a | Yes | n/a |
| To-Do List | n/a | n/a | Yes | n/a |
| Software | ||||
| Games | n/a | n/a | Yes | n/a |
| Voice | ||||
| HD Voice | Yes | Yes | - | Yes |
| Headset Jack (2.5 mm) | n/a | n/a | Yes | n/a |
| Speaker Phone | Yes | Yes | - | Yes |
| * Some versions only | ||||
| LG K40 / Harmony 3 | LG Premier Pro LTE | Samsung SPH/SCH-N300 | AT&T Maestro 3 | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | LG K40 / Harmony 3 | LG Premier Pro LTE | Samsung SPH/SCH-N300 | AT&T Maestro 3 |
