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| Phone | Microsoft Lumia 640 | Casio G'zOne Type-S | UTStarcom Slice PCS-1400 | LG Velvet |
| Current U.S. Carriers | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released |
| Specifications | ||||
|---|---|---|---|---|
| Display Size |
5" diag. 16 : 9 |
1.8" diag. 4 : 3 |
? |
6.8" diag. 20.5 : 9 |
| Display Resolution & Type |
720 x 1280 pixels (~294 ppi) LCD (TFT/TFD) |
176 x 220 pixels (~157 ppi) LCD (TFT/TFD) |
128 x 128 pixels LCD (STN) |
1080 x 2460 pixels (~395 ppi) AMOLED |
| Display Refresh | ? | ? | ? | 60 Hz |
| Battery | 2,500 mAh | 1,050 mAh | 900 mAh | 4,300 mAh |
| Processor | 1.2 GHz Qualcomm Snapdragon 400 (MSM8926) | ? | ? | Qualcomm Snapdragon 765G |
| RAM | 1 GB | ? | ? | 6 GB |
| Storage | 8 GB | ? raw hardware | ? raw hardware | 128 GB |
| Main Camera | 8 megapixel | Yes | - | 48 megapixel |
| Wide Camera | - | - | - | 8 megapixel |
| Tele Camera | - | - | - | - |
| Video Capture | 1080p HD | ? | - | 4K UHD |
| Front Camera | 1 megapixel | - | - | 16 megapixel |
| Weight |
5.11 oz (145g) |
5.1 oz (145g) |
2.3 oz (65g) |
6.35 oz (180g) |
| Dimensions |
5.56" x 2.84" x 0.35" (141 x 72 x 8.9 mm) |
3.8" x 2" x 1.1" (97 x 51 x 27.9 mm) |
4.3" x 1.8" x 0.4" (109 x 46 x 10.2 mm) |
6.58" x 2.92" x 0.31" (167 x 74 x 7.9 mm) |
| Form Factor | Slab | Clamshell | Slab | Slab |
| Platform / OS | Windows | (proprietary) | (proprietary) | Android |
| Network Bands |
CDMA: 850, 1900 |
CDMA: 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 |
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| Data Technology | LTE (Cat 4) | 1xRTT | 1xRTT | NR (5G) |
| Features | ||||
| Barometer | - | - | - | Yes |
| Fingerprint Reader | - | - | - |
Yes in-display (optical) |
| Flashlight | - | - | - | Yes |
| GPS / Location | n/a | Yes | Yes | n/a |
| Ruggedized | - | Yes | - | - |
| Water-Resistant | - | - | - |
Yes IPX8 (SCUBA) |
| Accessibility | ||||
| Adjustable Text Size | n/a | - | - | n/a |
| Hearing Aid Compatible |
Yes M3, T4 (very tele-coil compatible) |
Yes M4 (very compatible) |
- |
Yes M4, T3 (mostly tele-coil compatible) |
| Multiple Languages | n/a | Yes | - | n/a |
| TTY/TDD (Digital) | Yes | Yes | Yes | Yes |
| Alerts | ||||
| Extra Display | - | Yes | - | - |
| Connectivity | ||||
| Bluetooth | Yes | Yes | - | Yes |
| Mobile Hotspot | n/a | - | - | n/a |
| NFC | Yes | - | - | Yes |
| USB |
Yes Micro-USB |
- | - |
Yes USB Type C |
| Wi-Fi |
Yes 4 (802.11 b,g,n) |
- | - |
Yes 5 (802.11 a,ac,b,g,n) |
| Contacts | ||||
| Picture ID | n/a | Yes | - | n/a |
| Ringer ID | n/a | Yes | Yes | n/a |
| Voice Dialing | n/a | Yes | - | n/a |
| Customization | ||||
| Custom Graphics | n/a | Yes | Yes | n/a |
| Custom Ringtones | n/a | Yes | Yes | n/a |
| Real-Music Ringers | n/a | - | - | n/a |
| Data & Network | ||||
| Data Tethering | n/a | - | - | n/a |
| External Antenna Jack | n/a | - | Yes | n/a |
| WAP / Web Browser | n/a | Yes | Yes | n/a |
| Input | ||||
| Predictive Text Entry | n/a | Yes | Yes | n/a |
| Side Keys | Yes | Yes | Yes | Yes |
| Touch Screen |
Yes Capacitive |
- | - |
Yes Capacitive |
| Memory | ||||
| Memory Card Slot | Yes | - | - | Yes |
| Messaging | ||||
| Email Client | n/a | - | - | n/a |
| Instant Messaging | n/a | Yes | - | n/a |
| MMS | n/a | Yes | - | n/a |
| Text Messaging Templates | n/a | Yes | Yes | n/a |
| Music | ||||
| FM Radio | Yes | - | - | Yes |
| Headphone Jack (3.5mm) | Yes | - | - | Yes |
| Music Player | n/a | - | - | n/a |
| Stereo Speakers | - | - | - | Yes |
| Photo & Video | ||||
| DLNA | Yes | - | - | Yes |
| Miracast | Yes | - | - | Yes |
| TV Output | - | - | - | Yes |
| Power | ||||
| Fast Charging | - | - | - | Yes |
| Wireless Charging | - | - | - | Yes |
| Productivity | ||||
| Alarm | n/a | Yes | Yes | n/a |
| Calculator | n/a | Yes | Yes | n/a |
| Calendar | n/a | Yes | Yes | n/a |
| To-Do List | n/a | - | - | n/a |
| Voice Memo | n/a | - | - | n/a |
| Software | ||||
| BREW | n/a | Yes | - | n/a |
| Games | n/a | Yes | Yes | n/a |
| Java (J2ME) | n/a | - | Yes | n/a |
| Voice | ||||
| HD Voice | Yes | - | - | Yes |
| Headset Jack (2.5 mm) | n/a | - | Yes | n/a |
| Push-To-Talk | - | Yes * | - | - |
| Speaker Phone | Yes | Yes | Yes | Yes |
| * Some versions only | ||||
| Microsoft Lumia 640 | Casio G'zOne Type-S | UTStarcom Slice PCS-1400 | LG Velvet | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Microsoft Lumia 640 | Casio G'zOne Type-S | UTStarcom Slice PCS-1400 | LG Velvet |
